2025/2/8第一次更新

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MIT License
Copyright (c) Microsoft Corporation.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE
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# Installation
> `npm install --save @types/babel__core`
# Summary
This package contains type definitions for @babel/core (https://github.com/babel/babel/tree/master/packages/babel-core).
# Details
Files were exported from https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/babel__core.
### Additional Details
* Last updated: Mon, 20 Nov 2023 23:36:23 GMT
* Dependencies: [@babel/parser](https://npmjs.com/package/@babel/parser), [@babel/types](https://npmjs.com/package/@babel/types), [@types/babel__generator](https://npmjs.com/package/@types/babel__generator), [@types/babel__template](https://npmjs.com/package/@types/babel__template), [@types/babel__traverse](https://npmjs.com/package/@types/babel__traverse)
# Credits
These definitions were written by [Troy Gerwien](https://github.com/yortus), [Marvin Hagemeister](https://github.com/marvinhagemeister), [Melvin Groenhoff](https://github.com/mgroenhoff), [Jessica Franco](https://github.com/Jessidhia), and [Ifiok Jr.](https://github.com/ifiokjr).
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import { GeneratorOptions } from "@babel/generator";
import { ParserOptions } from "@babel/parser";
import template from "@babel/template";
import traverse, { Hub, NodePath, Scope, Visitor } from "@babel/traverse";
import * as t from "@babel/types";
export { GeneratorOptions, NodePath, ParserOptions, t as types, template, traverse, Visitor };
export type Node = t.Node;
export type ParseResult = ReturnType<typeof import("@babel/parser").parse>;
export const version: string;
export const DEFAULT_EXTENSIONS: [".js", ".jsx", ".es6", ".es", ".mjs"];
/**
* Source map standard format as to revision 3
* @see {@link https://sourcemaps.info/spec.html}
* @see {@link https://github.com/mozilla/source-map/blob/HEAD/source-map.d.ts}
*/
interface InputSourceMap {
version: number;
sources: string[];
names: string[];
sourceRoot?: string | undefined;
sourcesContent?: string[] | undefined;
mappings: string;
file: string;
}
export interface TransformOptions {
/**
* Specify which assumptions it can make about your code, to better optimize the compilation result. **NOTE**: This replaces the various `loose` options in plugins in favor of
* top-level options that can apply to multiple plugins
*
* @see https://babeljs.io/docs/en/assumptions
*/
assumptions?: { [name: string]: boolean } | null | undefined;
/**
* Include the AST in the returned object
*
* Default: `false`
*/
ast?: boolean | null | undefined;
/**
* Attach a comment after all non-user injected code
*
* Default: `null`
*/
auxiliaryCommentAfter?: string | null | undefined;
/**
* Attach a comment before all non-user injected code
*
* Default: `null`
*/
auxiliaryCommentBefore?: string | null | undefined;
/**
* Specify the "root" folder that defines the location to search for "babel.config.js", and the default folder to allow `.babelrc` files inside of.
*
* Default: `"."`
*/
root?: string | null | undefined;
/**
* This option, combined with the "root" value, defines how Babel chooses its project root.
* The different modes define different ways that Babel can process the "root" value to get
* the final project root.
*
* @see https://babeljs.io/docs/en/next/options#rootmode
*/
rootMode?: "root" | "upward" | "upward-optional" | undefined;
/**
* The config file to load Babel's config from. Defaults to searching for "babel.config.js" inside the "root" folder. `false` will disable searching for config files.
*
* Default: `undefined`
*/
configFile?: string | boolean | null | undefined;
/**
* Specify whether or not to use .babelrc and
* .babelignore files.
*
* Default: `true`
*/
babelrc?: boolean | null | undefined;
/**
* Specify which packages should be search for .babelrc files when they are being compiled. `true` to always search, or a path string or an array of paths to packages to search
* inside of. Defaults to only searching the "root" package.
*
* Default: `(root)`
*/
babelrcRoots?: boolean | MatchPattern | MatchPattern[] | null | undefined;
/**
* Toggles whether or not browserslist config sources are used, which includes searching for any browserslist files or referencing the browserslist key inside package.json.
* This is useful for projects that use a browserslist config for files that won't be compiled with Babel.
*
* If a string is specified, it must represent the path of a browserslist configuration file. Relative paths are resolved relative to the configuration file which specifies
* this option, or to `cwd` when it's passed as part of the programmatic options.
*
* Default: `true`
*/
browserslistConfigFile?: boolean | null | undefined;
/**
* The Browserslist environment to use.
*
* Default: `undefined`
*/
browserslistEnv?: string | null | undefined;
/**
* By default `babel.transformFromAst` will clone the input AST to avoid mutations.
* Specifying `cloneInputAst: false` can improve parsing performance if the input AST is not used elsewhere.
*
* Default: `true`
*/
cloneInputAst?: boolean | null | undefined;
/**
* Defaults to environment variable `BABEL_ENV` if set, or else `NODE_ENV` if set, or else it defaults to `"development"`
*
* Default: env vars
*/
envName?: string | undefined;
/**
* If any of patterns match, the current configuration object is considered inactive and is ignored during config processing.
*/
exclude?: MatchPattern | MatchPattern[] | undefined;
/**
* Enable code generation
*
* Default: `true`
*/
code?: boolean | null | undefined;
/**
* Output comments in generated output
*
* Default: `true`
*/
comments?: boolean | null | undefined;
/**
* Do not include superfluous whitespace characters and line terminators. When set to `"auto"` compact is set to `true` on input sizes of >500KB
*
* Default: `"auto"`
*/
compact?: boolean | "auto" | null | undefined;
/**
* The working directory that Babel's programmatic options are loaded relative to.
*
* Default: `"."`
*/
cwd?: string | null | undefined;
/**
* Utilities may pass a caller object to identify themselves to Babel and
* pass capability-related flags for use by configs, presets and plugins.
*
* @see https://babeljs.io/docs/en/next/options#caller
*/
caller?: TransformCaller | undefined;
/**
* This is an object of keys that represent different environments. For example, you may have: `{ env: { production: { \/* specific options *\/ } } }`
* which will use those options when the `envName` is `production`
*
* Default: `{}`
*/
env?: { [index: string]: TransformOptions | null | undefined } | null | undefined;
/**
* A path to a `.babelrc` file to extend
*
* Default: `null`
*/
extends?: string | null | undefined;
/**
* Filename for use in errors etc
*
* Default: `"unknown"`
*/
filename?: string | null | undefined;
/**
* Filename relative to `sourceRoot`
*
* Default: `(filename)`
*/
filenameRelative?: string | null | undefined;
/**
* An object containing the options to be passed down to the babel code generator, @babel/generator
*
* Default: `{}`
*/
generatorOpts?: GeneratorOptions | null | undefined;
/**
* Specify a custom callback to generate a module id with. Called as `getModuleId(moduleName)`. If falsy value is returned then the generated module id is used
*
* Default: `null`
*/
getModuleId?: ((moduleName: string) => string | null | undefined) | null | undefined;
/**
* ANSI highlight syntax error code frames
*
* Default: `true`
*/
highlightCode?: boolean | null | undefined;
/**
* Opposite to the `only` option. `ignore` is disregarded if `only` is specified
*
* Default: `null`
*/
ignore?: MatchPattern[] | null | undefined;
/**
* This option is a synonym for "test"
*/
include?: MatchPattern | MatchPattern[] | undefined;
/**
* A source map object that the output source map will be based on
*
* Default: `null`
*/
inputSourceMap?: InputSourceMap | null | undefined;
/**
* Should the output be minified (not printing last semicolons in blocks, printing literal string values instead of escaped ones, stripping `()` from `new` when safe)
*
* Default: `false`
*/
minified?: boolean | null | undefined;
/**
* Specify a custom name for module ids
*
* Default: `null`
*/
moduleId?: string | null | undefined;
/**
* If truthy, insert an explicit id for modules. By default, all modules are anonymous. (Not available for `common` modules)
*
* Default: `false`
*/
moduleIds?: boolean | null | undefined;
/**
* Optional prefix for the AMD module formatter that will be prepend to the filename on module definitions
*
* Default: `(sourceRoot)`
*/
moduleRoot?: string | null | undefined;
/**
* A glob, regex, or mixed array of both, matching paths to **only** compile. Can also be an array of arrays containing paths to explicitly match. When attempting to compile
* a non-matching file it's returned verbatim
*
* Default: `null`
*/
only?: MatchPattern[] | null | undefined;
/**
* Allows users to provide an array of options that will be merged into the current configuration one at a time.
* This feature is best used alongside the "test"/"include"/"exclude" options to provide conditions for which an override should apply
*/
overrides?: TransformOptions[] | undefined;
/**
* An object containing the options to be passed down to the babel parser, @babel/parser
*
* Default: `{}`
*/
parserOpts?: ParserOptions | null | undefined;
/**
* List of plugins to load and use
*
* Default: `[]`
*/
plugins?: PluginItem[] | null | undefined;
/**
* List of presets (a set of plugins) to load and use
*
* Default: `[]`
*/
presets?: PluginItem[] | null | undefined;
/**
* Retain line numbers. This will lead to wacky code but is handy for scenarios where you can't use source maps. (**NOTE**: This will not retain the columns)
*
* Default: `false`
*/
retainLines?: boolean | null | undefined;
/**
* An optional callback that controls whether a comment should be output or not. Called as `shouldPrintComment(commentContents)`. **NOTE**: This overrides the `comment` option when used
*
* Default: `null`
*/
shouldPrintComment?: ((commentContents: string) => boolean) | null | undefined;
/**
* Set `sources[0]` on returned source map
*
* Default: `(filenameRelative)`
*/
sourceFileName?: string | null | undefined;
/**
* If truthy, adds a `map` property to returned output. If set to `"inline"`, a comment with a sourceMappingURL directive is added to the bottom of the returned code. If set to `"both"`
* then a `map` property is returned as well as a source map comment appended. **This does not emit sourcemap files by itself!**
*
* Default: `false`
*/
sourceMaps?: boolean | "inline" | "both" | null | undefined;
/**
* The root from which all sources are relative
*
* Default: `(moduleRoot)`
*/
sourceRoot?: string | null | undefined;
/**
* Indicate the mode the code should be parsed in. Can be one of "script", "module", or "unambiguous". `"unambiguous"` will make Babel attempt to guess, based on the presence of ES6
* `import` or `export` statements. Files with ES6 `import`s and `export`s are considered `"module"` and are otherwise `"script"`.
*
* Default: `("module")`
*/
sourceType?: "script" | "module" | "unambiguous" | null | undefined;
/**
* If all patterns fail to match, the current configuration object is considered inactive and is ignored during config processing.
*/
test?: MatchPattern | MatchPattern[] | undefined;
/**
* Describes the environments you support/target for your project.
* This can either be a [browserslist-compatible](https://github.com/ai/browserslist) query (with [caveats](https://babeljs.io/docs/en/babel-preset-env#ineffective-browserslist-queries))
*
* Default: `{}`
*/
targets?:
| string
| string[]
| {
esmodules?: boolean;
node?: Omit<string, "current"> | "current" | true;
safari?: Omit<string, "tp"> | "tp";
browsers?: string | string[];
android?: string;
chrome?: string;
deno?: string;
edge?: string;
electron?: string;
firefox?: string;
ie?: string;
ios?: string;
opera?: string;
rhino?: string;
samsung?: string;
};
/**
* An optional callback that can be used to wrap visitor methods. **NOTE**: This is useful for things like introspection, and not really needed for implementing anything. Called as
* `wrapPluginVisitorMethod(pluginAlias, visitorType, callback)`.
*/
wrapPluginVisitorMethod?:
| ((
pluginAlias: string,
visitorType: "enter" | "exit",
callback: (path: NodePath, state: any) => void,
) => (path: NodePath, state: any) => void)
| null
| undefined;
}
export interface TransformCaller {
// the only required property
name: string;
// e.g. set to true by `babel-loader` and false by `babel-jest`
supportsStaticESM?: boolean | undefined;
supportsDynamicImport?: boolean | undefined;
supportsExportNamespaceFrom?: boolean | undefined;
supportsTopLevelAwait?: boolean | undefined;
// augment this with a "declare module '@babel/core' { ... }" if you need more keys
}
export type FileResultCallback = (err: Error | null, result: BabelFileResult | null) => any;
export interface MatchPatternContext {
envName: string;
dirname: string;
caller: TransformCaller | undefined;
}
export type MatchPattern = string | RegExp | ((filename: string | undefined, context: MatchPatternContext) => boolean);
/**
* Transforms the passed in code. Calling a callback with an object with the generated code, source map, and AST.
*/
export function transform(code: string, callback: FileResultCallback): void;
/**
* Transforms the passed in code. Calling a callback with an object with the generated code, source map, and AST.
*/
export function transform(code: string, opts: TransformOptions | undefined, callback: FileResultCallback): void;
/**
* Here for backward-compatibility. Ideally use `transformSync` if you want a synchronous API.
*/
export function transform(code: string, opts?: TransformOptions): BabelFileResult | null;
/**
* Transforms the passed in code. Returning an object with the generated code, source map, and AST.
*/
export function transformSync(code: string, opts?: TransformOptions): BabelFileResult | null;
/**
* Transforms the passed in code. Calling a callback with an object with the generated code, source map, and AST.
*/
export function transformAsync(code: string, opts?: TransformOptions): Promise<BabelFileResult | null>;
/**
* Asynchronously transforms the entire contents of a file.
*/
export function transformFile(filename: string, callback: FileResultCallback): void;
/**
* Asynchronously transforms the entire contents of a file.
*/
export function transformFile(filename: string, opts: TransformOptions | undefined, callback: FileResultCallback): void;
/**
* Synchronous version of `babel.transformFile`. Returns the transformed contents of the `filename`.
*/
export function transformFileSync(filename: string, opts?: TransformOptions): BabelFileResult | null;
/**
* Asynchronously transforms the entire contents of a file.
*/
export function transformFileAsync(filename: string, opts?: TransformOptions): Promise<BabelFileResult | null>;
/**
* Given an AST, transform it.
*/
export function transformFromAst(ast: Node, code: string | undefined, callback: FileResultCallback): void;
/**
* Given an AST, transform it.
*/
export function transformFromAst(
ast: Node,
code: string | undefined,
opts: TransformOptions | undefined,
callback: FileResultCallback,
): void;
/**
* Here for backward-compatibility. Ideally use ".transformSync" if you want a synchronous API.
*/
export function transformFromAstSync(ast: Node, code?: string, opts?: TransformOptions): BabelFileResult | null;
/**
* Given an AST, transform it.
*/
export function transformFromAstAsync(
ast: Node,
code?: string,
opts?: TransformOptions,
): Promise<BabelFileResult | null>;
// A babel plugin is a simple function which must return an object matching
// the following interface. Babel will throw if it finds unknown properties.
// The list of allowed plugin keys is here:
// https://github.com/babel/babel/blob/4e50b2d9d9c376cee7a2cbf56553fe5b982ea53c/packages/babel-core/src/config/option-manager.js#L71
export interface PluginObj<S = PluginPass> {
name?: string | undefined;
manipulateOptions?(opts: any, parserOpts: any): void;
pre?(this: S, file: BabelFile): void;
visitor: Visitor<S>;
post?(this: S, file: BabelFile): void;
inherits?: any;
}
export interface BabelFile {
ast: t.File;
opts: TransformOptions;
hub: Hub;
metadata: object;
path: NodePath<t.Program>;
scope: Scope;
inputMap: object | null;
code: string;
}
export interface PluginPass {
file: BabelFile;
key: string;
opts: object;
cwd: string;
filename: string | undefined;
get(key: unknown): any;
set(key: unknown, value: unknown): void;
[key: string]: unknown;
}
export interface BabelFileResult {
ast?: t.File | null | undefined;
code?: string | null | undefined;
ignored?: boolean | undefined;
map?:
| {
version: number;
sources: string[];
names: string[];
sourceRoot?: string | undefined;
sourcesContent?: string[] | undefined;
mappings: string;
file: string;
}
| null
| undefined;
metadata?: BabelFileMetadata | undefined;
}
export interface BabelFileMetadata {
usedHelpers: string[];
marked: Array<{
type: string;
message: string;
loc: object;
}>;
modules: BabelFileModulesMetadata;
}
export interface BabelFileModulesMetadata {
imports: object[];
exports: {
exported: object[];
specifiers: object[];
};
}
export type FileParseCallback = (err: Error | null, result: ParseResult | null) => any;
/**
* Given some code, parse it using Babel's standard behavior.
* Referenced presets and plugins will be loaded such that optional syntax plugins are automatically enabled.
*/
export function parse(code: string, callback: FileParseCallback): void;
/**
* Given some code, parse it using Babel's standard behavior.
* Referenced presets and plugins will be loaded such that optional syntax plugins are automatically enabled.
*/
export function parse(code: string, options: TransformOptions | undefined, callback: FileParseCallback): void;
/**
* Given some code, parse it using Babel's standard behavior.
* Referenced presets and plugins will be loaded such that optional syntax plugins are automatically enabled.
*/
export function parse(code: string, options?: TransformOptions): ParseResult | null;
/**
* Given some code, parse it using Babel's standard behavior.
* Referenced presets and plugins will be loaded such that optional syntax plugins are automatically enabled.
*/
export function parseSync(code: string, options?: TransformOptions): ParseResult | null;
/**
* Given some code, parse it using Babel's standard behavior.
* Referenced presets and plugins will be loaded such that optional syntax plugins are automatically enabled.
*/
export function parseAsync(code: string, options?: TransformOptions): Promise<ParseResult | null>;
/**
* Resolve Babel's options fully, resulting in an options object where:
*
* * opts.plugins is a full list of Plugin instances.
* * opts.presets is empty and all presets are flattened into opts.
* * It can be safely passed back to Babel. Fields like babelrc have been set to false so that later calls to Babel
* will not make a second attempt to load config files.
*
* Plugin instances aren't meant to be manipulated directly, but often callers will serialize this opts to JSON to
* use it as a cache key representing the options Babel has received. Caching on this isn't 100% guaranteed to
* invalidate properly, but it is the best we have at the moment.
*/
export function loadOptions(options?: TransformOptions): object | null;
/**
* To allow systems to easily manipulate and validate a user's config, this function resolves the plugins and
* presets and proceeds no further. The expectation is that callers will take the config's .options, manipulate it
* as then see fit and pass it back to Babel again.
*
* * `babelrc: string | void` - The path of the `.babelrc` file, if there was one.
* * `babelignore: string | void` - The path of the `.babelignore` file, if there was one.
* * `options: ValidatedOptions` - The partially resolved options, which can be manipulated and passed back
* to Babel again.
* * `plugins: Array<ConfigItem>` - See below.
* * `presets: Array<ConfigItem>` - See below.
* * It can be safely passed back to Babel. Fields like `babelrc` have been set to false so that later calls to
* Babel will not make a second attempt to load config files.
*
* `ConfigItem` instances expose properties to introspect the values, but each item should be treated as
* immutable. If changes are desired, the item should be removed from the list and replaced with either a normal
* Babel config value, or with a replacement item created by `babel.createConfigItem`. See that function for
* information about `ConfigItem` fields.
*/
export function loadPartialConfig(options?: TransformOptions): Readonly<PartialConfig> | null;
export function loadPartialConfigAsync(options?: TransformOptions): Promise<Readonly<PartialConfig> | null>;
export interface PartialConfig {
options: TransformOptions;
babelrc?: string | undefined;
babelignore?: string | undefined;
config?: string | undefined;
hasFilesystemConfig: () => boolean;
}
export interface ConfigItem {
/**
* The name that the user gave the plugin instance, e.g. `plugins: [ ['env', {}, 'my-env'] ]`
*/
name?: string | undefined;
/**
* The resolved value of the plugin.
*/
value: object | ((...args: any[]) => any);
/**
* The options object passed to the plugin.
*/
options?: object | false | undefined;
/**
* The path that the options are relative to.
*/
dirname: string;
/**
* Information about the plugin's file, if Babel knows it.
* *
*/
file?:
| {
/**
* The file that the user requested, e.g. `"@babel/env"`
*/
request: string;
/**
* The full path of the resolved file, e.g. `"/tmp/node_modules/@babel/preset-env/lib/index.js"`
*/
resolved: string;
}
| null
| undefined;
}
export type PluginOptions = object | undefined | false;
export type PluginTarget = string | object | ((...args: any[]) => any);
export type PluginItem =
| ConfigItem
| PluginObj<any>
| PluginTarget
| [PluginTarget, PluginOptions]
| [PluginTarget, PluginOptions, string | undefined];
export function resolvePlugin(name: string, dirname: string): string | null;
export function resolvePreset(name: string, dirname: string): string | null;
export interface CreateConfigItemOptions {
dirname?: string | undefined;
type?: "preset" | "plugin" | undefined;
}
/**
* Allows build tooling to create and cache config items up front. If this function is called multiple times for a
* given plugin, Babel will call the plugin's function itself multiple times. If you have a clear set of expected
* plugins and presets to inject, pre-constructing the config items would be recommended.
*/
export function createConfigItem(
value: PluginTarget | [PluginTarget, PluginOptions] | [PluginTarget, PluginOptions, string | undefined],
options?: CreateConfigItemOptions,
): ConfigItem;
// NOTE: the documentation says the ConfigAPI also exposes @babel/core's exports, but it actually doesn't
/**
* @see https://babeljs.io/docs/en/next/config-files#config-function-api
*/
export interface ConfigAPI {
/**
* The version string for the Babel version that is loading the config file.
*
* @see https://babeljs.io/docs/en/next/config-files#apiversion
*/
version: string;
/**
* @see https://babeljs.io/docs/en/next/config-files#apicache
*/
cache: SimpleCacheConfigurator;
/**
* @see https://babeljs.io/docs/en/next/config-files#apienv
*/
env: EnvFunction;
// undocumented; currently hardcoded to return 'false'
// async(): boolean
/**
* This API is used as a way to access the `caller` data that has been passed to Babel.
* Since many instances of Babel may be running in the same process with different `caller` values,
* this API is designed to automatically configure `api.cache`, the same way `api.env()` does.
*
* The `caller` value is available as the first parameter of the callback function.
* It is best used with something like this to toggle configuration behavior
* based on a specific environment:
*
* @example
* function isBabelRegister(caller?: { name: string }) {
* return !!(caller && caller.name === "@babel/register")
* }
* api.caller(isBabelRegister)
*
* @see https://babeljs.io/docs/en/next/config-files#apicallercb
*/
caller<T extends SimpleCacheKey>(callerCallback: (caller: TransformOptions["caller"]) => T): T;
/**
* While `api.version` can be useful in general, it's sometimes nice to just declare your version.
* This API exposes a simple way to do that with:
*
* @example
* api.assertVersion(7) // major version only
* api.assertVersion("^7.2")
*
* @see https://babeljs.io/docs/en/next/config-files#apiassertversionrange
*/
assertVersion(versionRange: number | string): boolean;
// NOTE: this is an undocumented reexport from "@babel/parser" but it's missing from its types
// tokTypes: typeof tokTypes
}
/**
* JS configs are great because they can compute a config on the fly,
* but the downside there is that it makes caching harder.
* Babel wants to avoid re-executing the config function every time a file is compiled,
* because then it would also need to re-execute any plugin and preset functions
* referenced in that config.
*
* To avoid this, Babel expects users of config functions to tell it how to manage caching
* within a config file.
*
* @see https://babeljs.io/docs/en/next/config-files#apicache
*/
export interface SimpleCacheConfigurator {
// there is an undocumented call signature that is a shorthand for forever()/never()/using().
// (ever: boolean): void
// <T extends SimpleCacheKey>(callback: CacheCallback<T>): T
/**
* Permacache the computed config and never call the function again.
*/
forever(): void;
/**
* Do not cache this config, and re-execute the function every time.
*/
never(): void;
/**
* Any time the using callback returns a value other than the one that was expected,
* the overall config function will be called again and a new entry will be added to the cache.
*
* @example
* api.cache.using(() => process.env.NODE_ENV)
*/
using<T extends SimpleCacheKey>(callback: SimpleCacheCallback<T>): T;
/**
* Any time the using callback returns a value other than the one that was expected,
* the overall config function will be called again and all entries in the cache will
* be replaced with the result.
*
* @example
* api.cache.invalidate(() => process.env.NODE_ENV)
*/
invalidate<T extends SimpleCacheKey>(callback: SimpleCacheCallback<T>): T;
}
// https://github.com/babel/babel/blob/v7.3.3/packages/babel-core/src/config/caching.js#L231
export type SimpleCacheKey = string | boolean | number | null | undefined;
export type SimpleCacheCallback<T extends SimpleCacheKey> = () => T;
/**
* Since `NODE_ENV` is a fairly common way to toggle behavior, Babel also includes an API function
* meant specifically for that. This API is used as a quick way to check the `"envName"` that Babel
* was loaded with, which takes `NODE_ENV` into account if no other overriding environment is set.
*
* @see https://babeljs.io/docs/en/next/config-files#apienv
*/
export interface EnvFunction {
/**
* @returns the current `envName` string
*/
(): string;
/**
* @returns `true` if the `envName` is `===` any of the given strings
*/
(envName: string | readonly string[]): boolean;
// the official documentation is misleading for this one...
// this just passes the callback to `cache.using` but with an additional argument.
// it returns its result instead of necessarily returning a boolean.
<T extends SimpleCacheKey>(envCallback: (envName: NonNullable<TransformOptions["envName"]>) => T): T;
}
export type ConfigFunction = (api: ConfigAPI) => TransformOptions;
export as namespace babel;
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{
"name": "@types/babel__core",
"version": "7.20.5",
"description": "TypeScript definitions for @babel/core",
"homepage": "https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/babel__core",
"license": "MIT",
"contributors": [
{
"name": "Troy Gerwien",
"githubUsername": "yortus",
"url": "https://github.com/yortus"
},
{
"name": "Marvin Hagemeister",
"githubUsername": "marvinhagemeister",
"url": "https://github.com/marvinhagemeister"
},
{
"name": "Melvin Groenhoff",
"githubUsername": "mgroenhoff",
"url": "https://github.com/mgroenhoff"
},
{
"name": "Jessica Franco",
"githubUsername": "Jessidhia",
"url": "https://github.com/Jessidhia"
},
{
"name": "Ifiok Jr.",
"githubUsername": "ifiokjr",
"url": "https://github.com/ifiokjr"
}
],
"main": "",
"types": "index.d.ts",
"repository": {
"type": "git",
"url": "https://github.com/DefinitelyTyped/DefinitelyTyped.git",
"directory": "types/babel__core"
},
"scripts": {},
"dependencies": {
"@babel/parser": "^7.20.7",
"@babel/types": "^7.20.7",
"@types/babel__generator": "*",
"@types/babel__template": "*",
"@types/babel__traverse": "*"
},
"typesPublisherContentHash": "3ece429b02ff9f70503a5644f2b303b04d10e6da7940c91a9eff5e52f2c76b91",
"typeScriptVersion": "4.5"
}
+21
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MIT License
Copyright (c) Microsoft Corporation.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE
+15
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# Installation
> `npm install --save @types/babel__generator`
# Summary
This package contains type definitions for @babel/generator (https://github.com/babel/babel/tree/master/packages/babel-generator).
# Details
Files were exported from https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/babel__generator.
### Additional Details
* Last updated: Sat, 16 Dec 2023 09:06:45 GMT
* Dependencies: [@babel/types](https://npmjs.com/package/@babel/types)
# Credits
These definitions were written by [Troy Gerwien](https://github.com/yortus), [Melvin Groenhoff](https://github.com/mgroenhoff), [Cameron Yan](https://github.com/khell), and [Lyanbin](https://github.com/Lyanbin).
+208
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import * as t from "@babel/types";
export interface GeneratorOptions {
/**
* Optional string to add as a block comment at the start of the output file.
*/
auxiliaryCommentBefore?: string | undefined;
/**
* Optional string to add as a block comment at the end of the output file.
*/
auxiliaryCommentAfter?: string | undefined;
/**
* Function that takes a comment (as a string) and returns true if the comment should be included in the output.
* By default, comments are included if `opts.comments` is `true` or if `opts.minifed` is `false` and the comment
* contains `@preserve` or `@license`.
*/
shouldPrintComment?(comment: string): boolean;
/**
* Attempt to use the same line numbers in the output code as in the source code (helps preserve stack traces).
* Defaults to `false`.
*/
retainLines?: boolean | undefined;
/**
* Retain parens around function expressions (could be used to change engine parsing behavior)
* Defaults to `false`.
*/
retainFunctionParens?: boolean | undefined;
/**
* Should comments be included in output? Defaults to `true`.
*/
comments?: boolean | undefined;
/**
* Set to true to avoid adding whitespace for formatting. Defaults to the value of `opts.minified`.
*/
compact?: boolean | "auto" | undefined;
/**
* Should the output be minified. Defaults to `false`.
*/
minified?: boolean | undefined;
/**
* Set to true to reduce whitespace (but not as much as opts.compact). Defaults to `false`.
*/
concise?: boolean | undefined;
/**
* Used in warning messages
*/
filename?: string | undefined;
/**
* Enable generating source maps. Defaults to `false`.
*/
sourceMaps?: boolean | undefined;
/**
* A root for all relative URLs in the source map.
*/
sourceRoot?: string | undefined;
/**
* The filename for the source code (i.e. the code in the `code` argument).
* This will only be used if `code` is a string.
*/
sourceFileName?: string | undefined;
/**
* Set to true to run jsesc with "json": true to print "\u00A9" vs. "©";
*/
jsonCompatibleStrings?: boolean | undefined;
/**
* Set to true to enable support for experimental decorators syntax before module exports.
* Defaults to `false`.
*/
decoratorsBeforeExport?: boolean | undefined;
/**
* The import attributes/assertions syntax to use.
* When not specified, @babel/generator will try to match the style in the input code based on the AST shape.
*/
importAttributesKeyword?: "with" | "assert" | "with-legacy";
/**
* Options for outputting jsesc representation.
*/
jsescOption?: {
/**
* The default value for the quotes option is 'single'. This means that any occurrences of ' in the input
* string are escaped as \', so that the output can be used in a string literal wrapped in single quotes.
*/
quotes?: "single" | "double" | "backtick" | undefined;
/**
* The default value for the numbers option is 'decimal'. This means that any numeric values are represented
* using decimal integer literals. Other valid options are binary, octal, and hexadecimal, which result in
* binary integer literals, octal integer literals, and hexadecimal integer literals, respectively.
*/
numbers?: "binary" | "octal" | "decimal" | "hexadecimal" | undefined;
/**
* The wrap option takes a boolean value (true or false), and defaults to false (disabled). When enabled, the
* output is a valid JavaScript string literal wrapped in quotes. The type of quotes can be specified through
* the quotes setting.
*/
wrap?: boolean | undefined;
/**
* The es6 option takes a boolean value (true or false), and defaults to false (disabled). When enabled, any
* astral Unicode symbols in the input are escaped using ECMAScript 6 Unicode code point escape sequences
* instead of using separate escape sequences for each surrogate half. If backwards compatibility with ES5
* environments is a concern, dont enable this setting. If the json setting is enabled, the value for the es6
* setting is ignored (as if it was false).
*/
es6?: boolean | undefined;
/**
* The escapeEverything option takes a boolean value (true or false), and defaults to false (disabled). When
* enabled, all the symbols in the output are escaped — even printable ASCII symbols.
*/
escapeEverything?: boolean | undefined;
/**
* The minimal option takes a boolean value (true or false), and defaults to false (disabled). When enabled,
* only a limited set of symbols in the output are escaped: \0, \b, \t, \n, \f, \r, \\, \u2028, \u2029.
*/
minimal?: boolean | undefined;
/**
* The isScriptContext option takes a boolean value (true or false), and defaults to false (disabled). When
* enabled, occurrences of </script and </style in the output are escaped as <\/script and <\/style, and <!--
* is escaped as \x3C!-- (or \u003C!-- when the json option is enabled). This setting is useful when jsescs
* output ends up as part of a <script> or <style> element in an HTML document.
*/
isScriptContext?: boolean | undefined;
/**
* The compact option takes a boolean value (true or false), and defaults to true (enabled). When enabled,
* the output for arrays and objects is as compact as possible; its not formatted nicely.
*/
compact?: boolean | undefined;
/**
* The indent option takes a string value, and defaults to '\t'. When the compact setting is enabled (true),
* the value of the indent option is used to format the output for arrays and objects.
*/
indent?: string | undefined;
/**
* The indentLevel option takes a numeric value, and defaults to 0. It represents the current indentation level,
* i.e. the number of times the value of the indent option is repeated.
*/
indentLevel?: number | undefined;
/**
* The json option takes a boolean value (true or false), and defaults to false (disabled). When enabled, the
* output is valid JSON. Hexadecimal character escape sequences and the \v or \0 escape sequences are not used.
* Setting json: true implies quotes: 'double', wrap: true, es6: false, although these values can still be
* overridden if needed — but in such cases, the output wont be valid JSON anymore.
*/
json?: boolean | undefined;
/**
* The lowercaseHex option takes a boolean value (true or false), and defaults to false (disabled). When enabled,
* any alphabetical hexadecimal digits in escape sequences as well as any hexadecimal integer literals (see the
* numbers option) in the output are in lowercase.
*/
lowercaseHex?: boolean | undefined;
} | undefined;
}
export class CodeGenerator {
constructor(ast: t.Node, opts?: GeneratorOptions, code?: string);
generate(): GeneratorResult;
}
/**
* Turns an AST into code, maintaining sourcemaps, user preferences, and valid output.
* @param ast - the abstract syntax tree from which to generate output code.
* @param opts - used for specifying options for code generation.
* @param code - the original source code, used for source maps.
* @returns - an object containing the output code and source map.
*/
export default function generate(
ast: t.Node,
opts?: GeneratorOptions,
code?: string | { [filename: string]: string },
): GeneratorResult;
export interface GeneratorResult {
code: string;
map: {
version: number;
sources: string[];
names: string[];
sourceRoot?: string | undefined;
sourcesContent?: string[] | undefined;
mappings: string;
file: string;
} | null;
}
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{
"name": "@types/babel__generator",
"version": "7.6.8",
"description": "TypeScript definitions for @babel/generator",
"homepage": "https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/babel__generator",
"license": "MIT",
"contributors": [
{
"name": "Troy Gerwien",
"githubUsername": "yortus",
"url": "https://github.com/yortus"
},
{
"name": "Melvin Groenhoff",
"githubUsername": "mgroenhoff",
"url": "https://github.com/mgroenhoff"
},
{
"name": "Cameron Yan",
"githubUsername": "khell",
"url": "https://github.com/khell"
},
{
"name": "Lyanbin",
"githubUsername": "Lyanbin",
"url": "https://github.com/Lyanbin"
}
],
"main": "",
"types": "index.d.ts",
"repository": {
"type": "git",
"url": "https://github.com/DefinitelyTyped/DefinitelyTyped.git",
"directory": "types/babel__generator"
},
"scripts": {},
"dependencies": {
"@babel/types": "^7.0.0"
},
"typesPublisherContentHash": "23a97216c53cccf235c3fada4d15919d739c41570c91168dda0ad57cafd4ed4f",
"typeScriptVersion": "4.6"
}
+21
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MIT License
Copyright (c) Microsoft Corporation.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE
+15
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# Installation
> `npm install --save @types/babel__template`
# Summary
This package contains type definitions for @babel/template (https://github.com/babel/babel/tree/master/packages/babel-template).
# Details
Files were exported from https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/babel__template.
### Additional Details
* Last updated: Mon, 06 Nov 2023 22:41:04 GMT
* Dependencies: [@babel/parser](https://npmjs.com/package/@babel/parser), [@babel/types](https://npmjs.com/package/@babel/types)
# Credits
These definitions were written by [Troy Gerwien](https://github.com/yortus), [Marvin Hagemeister](https://github.com/marvinhagemeister), [Melvin Groenhoff](https://github.com/mgroenhoff), and [ExE Boss](https://github.com/ExE-Boss).
+92
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import { ParserOptions } from "@babel/parser";
import { Expression, Program, Statement } from "@babel/types";
export interface TemplateBuilderOptions extends ParserOptions {
/**
* A set of placeholder names to automatically accept.
* Items in this list do not need to match `placeholderPattern`.
*
* This option cannot be used when using `%%foo%%` style placeholders.
*/
placeholderWhitelist?: Set<string> | null | undefined;
/**
* A pattern to search for when looking for `Identifier` and `StringLiteral`
* nodes that should be considered as placeholders.
*
* `false` will disable placeholder searching placeholders, leaving only
* the `placeholderWhitelist` value to find replacements.
*
* This option cannot be used when using `%%foo%%` style placeholders.
*
* @default /^[_$A-Z0-9]+$/
*/
placeholderPattern?: RegExp | false | null | undefined;
/**
* Set this to `true` to preserve comments from the template string
* into the resulting AST, or `false` to automatically discard comments.
*
* @default false
*/
preserveComments?: boolean | null | undefined;
/**
* Set to `true` to use `%%foo%%` style placeholders, `false` to use legacy placeholders
* described by `placeholderPattern` or `placeholderWhitelist`.
*
* When it is not set, it behaves as `true` if there are syntactic placeholders, otherwise as `false`.
*
* @since 7.4.0
*/
syntacticPlaceholders?: boolean | null | undefined;
}
export interface TemplateBuilder<T> {
/**
* Build a new builder, merging the given options with the previous ones.
*/
(opts: TemplateBuilderOptions): TemplateBuilder<T>;
/**
* Building from a string produces an AST builder function by default.
*/
(code: string, opts?: TemplateBuilderOptions): (arg?: PublicReplacements) => T;
/**
* Building from a template literal produces an AST builder function by default.
*/
(tpl: TemplateStringsArray, ...args: unknown[]): (arg?: PublicReplacements) => T;
/**
* Allow users to explicitly create templates that produce ASTs,
* skipping the need for an intermediate function.
*
* Does not allow `%%foo%%` style placeholders.
*/
ast: {
(tpl: string, opts?: TemplateBuilderOptions): T;
(tpl: TemplateStringsArray, ...args: unknown[]): T;
};
}
export type PublicReplacements = { [index: string]: unknown } | unknown[];
export const smart: TemplateBuilder<Statement | Statement[]>;
export const statement: TemplateBuilder<Statement>;
export const statements: TemplateBuilder<Statement[]>;
export const expression: TemplateBuilder<Expression>;
export const program: TemplateBuilder<Program>;
type DefaultTemplateBuilder = typeof smart & {
smart: typeof smart;
statement: typeof statement;
statements: typeof statements;
expression: typeof expression;
program: typeof program;
ast: typeof smart.ast;
};
declare const templateBuilder: DefaultTemplateBuilder;
export default templateBuilder;
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{
"name": "@types/babel__template",
"version": "7.4.4",
"description": "TypeScript definitions for @babel/template",
"homepage": "https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/babel__template",
"license": "MIT",
"contributors": [
{
"name": "Troy Gerwien",
"githubUsername": "yortus",
"url": "https://github.com/yortus"
},
{
"name": "Marvin Hagemeister",
"githubUsername": "marvinhagemeister",
"url": "https://github.com/marvinhagemeister"
},
{
"name": "Melvin Groenhoff",
"githubUsername": "mgroenhoff",
"url": "https://github.com/mgroenhoff"
},
{
"name": "ExE Boss",
"githubUsername": "ExE-Boss",
"url": "https://github.com/ExE-Boss"
}
],
"main": "",
"types": "index.d.ts",
"repository": {
"type": "git",
"url": "https://github.com/DefinitelyTyped/DefinitelyTyped.git",
"directory": "types/babel__template"
},
"scripts": {},
"dependencies": {
"@babel/parser": "^7.1.0",
"@babel/types": "^7.0.0"
},
"typesPublisherContentHash": "5730d754b4d1fcd41676b093f9e32b340c749c4d37b126dfa312e394467e86c6",
"typeScriptVersion": "4.5"
}
+21
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MIT License
Copyright (c) Microsoft Corporation.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE
+15
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# Installation
> `npm install --save @types/babel__traverse`
# Summary
This package contains type definitions for @babel/traverse (https://github.com/babel/babel/tree/main/packages/babel-traverse).
# Details
Files were exported from https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/babel__traverse.
### Additional Details
* Last updated: Tue, 21 May 2024 21:07:11 GMT
* Dependencies: [@babel/types](https://npmjs.com/package/@babel/types)
# Credits
These definitions were written by [Troy Gerwien](https://github.com/yortus), [Marvin Hagemeister](https://github.com/marvinhagemeister), [Ryan Petrich](https://github.com/rpetrich), [Melvin Groenhoff](https://github.com/mgroenhoff), [Dean L.](https://github.com/dlgrit), [Ifiok Jr.](https://github.com/ifiokjr), [ExE Boss](https://github.com/ExE-Boss), and [Daniel Tschinder](https://github.com/danez).
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{
"name": "@types/babel__traverse",
"version": "7.20.6",
"description": "TypeScript definitions for @babel/traverse",
"homepage": "https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/babel__traverse",
"license": "MIT",
"contributors": [
{
"name": "Troy Gerwien",
"githubUsername": "yortus",
"url": "https://github.com/yortus"
},
{
"name": "Marvin Hagemeister",
"githubUsername": "marvinhagemeister",
"url": "https://github.com/marvinhagemeister"
},
{
"name": "Ryan Petrich",
"githubUsername": "rpetrich",
"url": "https://github.com/rpetrich"
},
{
"name": "Melvin Groenhoff",
"githubUsername": "mgroenhoff",
"url": "https://github.com/mgroenhoff"
},
{
"name": "Dean L.",
"githubUsername": "dlgrit",
"url": "https://github.com/dlgrit"
},
{
"name": "Ifiok Jr.",
"githubUsername": "ifiokjr",
"url": "https://github.com/ifiokjr"
},
{
"name": "ExE Boss",
"githubUsername": "ExE-Boss",
"url": "https://github.com/ExE-Boss"
},
{
"name": "Daniel Tschinder",
"githubUsername": "danez",
"url": "https://github.com/danez"
}
],
"main": "",
"types": "index.d.ts",
"repository": {
"type": "git",
"url": "https://github.com/DefinitelyTyped/DefinitelyTyped.git",
"directory": "types/babel__traverse"
},
"scripts": {},
"dependencies": {
"@babel/types": "^7.20.7"
},
"typesPublisherContentHash": "cbe25b5500aad0414e291c229529da2d7ee3ac79072c3c2f95bf1bde4d81316c",
"typeScriptVersion": "4.7"
}
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MIT License
Copyright (c) Microsoft Corporation.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE
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# Installation
> `npm install --save @types/eslint-scope`
# Summary
This package contains type definitions for eslint-scope (https://github.com/eslint/eslint-scope).
# Details
Files were exported from https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/eslint-scope.
## [index.d.ts](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/eslint-scope/index.d.ts)
````ts
import * as eslint from "eslint";
import * as estree from "estree";
export const version: string;
export class ScopeManager implements eslint.Scope.ScopeManager {
scopes: Scope[];
globalScope: Scope;
acquire(node: {}, inner?: boolean): Scope | null;
getDeclaredVariables(node: {}): Variable[];
}
export class Scope implements eslint.Scope.Scope {
type:
| "block"
| "catch"
| "class"
| "for"
| "function"
| "function-expression-name"
| "global"
| "module"
| "switch"
| "with"
| "TDZ";
isStrict: boolean;
upper: Scope | null;
childScopes: Scope[];
variableScope: Scope;
block: estree.Node;
variables: Variable[];
set: Map<string, Variable>;
references: Reference[];
through: Reference[];
functionExpressionScope: boolean;
}
export class Variable implements eslint.Scope.Variable {
name: string;
scope: Scope;
identifiers: estree.Identifier[];
references: Reference[];
defs: eslint.Scope.Definition[];
}
export class Reference implements eslint.Scope.Reference {
identifier: estree.Identifier;
from: Scope;
resolved: Variable | null;
writeExpr: estree.Node | null;
init: boolean;
isWrite(): boolean;
isRead(): boolean;
isWriteOnly(): boolean;
isReadOnly(): boolean;
isReadWrite(): boolean;
}
export interface AnalysisOptions {
optimistic?: boolean;
directive?: boolean;
ignoreEval?: boolean;
nodejsScope?: boolean;
impliedStrict?: boolean;
fallback?: string | ((node: {}) => string[]);
sourceType?: "script" | "module";
ecmaVersion?: number;
}
export function analyze(ast: {}, options?: AnalysisOptions): ScopeManager;
````
### Additional Details
* Last updated: Mon, 06 Nov 2023 22:41:05 GMT
* Dependencies: [@types/eslint](https://npmjs.com/package/@types/eslint), [@types/estree](https://npmjs.com/package/@types/estree)
# Credits
These definitions were written by [Toru Nagashima](https://github.com/mysticatea).
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import * as eslint from "eslint";
import * as estree from "estree";
export const version: string;
export class ScopeManager implements eslint.Scope.ScopeManager {
scopes: Scope[];
globalScope: Scope;
acquire(node: {}, inner?: boolean): Scope | null;
getDeclaredVariables(node: {}): Variable[];
}
export class Scope implements eslint.Scope.Scope {
type:
| "block"
| "catch"
| "class"
| "for"
| "function"
| "function-expression-name"
| "global"
| "module"
| "switch"
| "with"
| "TDZ";
isStrict: boolean;
upper: Scope | null;
childScopes: Scope[];
variableScope: Scope;
block: estree.Node;
variables: Variable[];
set: Map<string, Variable>;
references: Reference[];
through: Reference[];
functionExpressionScope: boolean;
}
export class Variable implements eslint.Scope.Variable {
name: string;
scope: Scope;
identifiers: estree.Identifier[];
references: Reference[];
defs: eslint.Scope.Definition[];
}
export class Reference implements eslint.Scope.Reference {
identifier: estree.Identifier;
from: Scope;
resolved: Variable | null;
writeExpr: estree.Node | null;
init: boolean;
isWrite(): boolean;
isRead(): boolean;
isWriteOnly(): boolean;
isReadOnly(): boolean;
isReadWrite(): boolean;
}
export interface AnalysisOptions {
optimistic?: boolean;
directive?: boolean;
ignoreEval?: boolean;
nodejsScope?: boolean;
impliedStrict?: boolean;
fallback?: string | ((node: {}) => string[]);
sourceType?: "script" | "module";
ecmaVersion?: number;
}
export function analyze(ast: {}, options?: AnalysisOptions): ScopeManager;
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{
"name": "@types/eslint-scope",
"version": "3.7.7",
"description": "TypeScript definitions for eslint-scope",
"homepage": "https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/eslint-scope",
"license": "MIT",
"contributors": [
{
"name": "Toru Nagashima",
"githubUsername": "mysticatea",
"url": "https://github.com/mysticatea"
}
],
"main": "",
"types": "index.d.ts",
"repository": {
"type": "git",
"url": "https://github.com/DefinitelyTyped/DefinitelyTyped.git",
"directory": "types/eslint-scope"
},
"scripts": {},
"dependencies": {
"@types/eslint": "*",
"@types/estree": "*"
},
"typesPublisherContentHash": "49eee35b78c19e2c83bc96ce190c7a88329006f876dd7f1fb378c1e8034fc8f2",
"typeScriptVersion": "4.5"
}
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MIT License
Copyright (c) Microsoft Corporation.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE
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# Installation
> `npm install --save @types/eslint`
# Summary
This package contains type definitions for eslint (https://eslint.org).
# Details
Files were exported from https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/eslint.
### Additional Details
* Last updated: Mon, 26 Aug 2024 07:08:02 GMT
* Dependencies: [@types/estree](https://npmjs.com/package/@types/estree), [@types/json-schema](https://npmjs.com/package/@types/json-schema)
# Credits
These definitions were written by [Pierre-Marie Dartus](https://github.com/pmdartus), [Jed Fox](https://github.com/j-f1), [Saad Quadri](https://github.com/saadq), [Jason Kwok](https://github.com/JasonHK), [Brad Zacher](https://github.com/bradzacher), [JounQin](https://github.com/JounQin), and [Bryan Mishkin](https://github.com/bmish).
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{
"name": "@types/eslint",
"version": "9.6.1",
"description": "TypeScript definitions for eslint",
"homepage": "https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/eslint",
"license": "MIT",
"contributors": [
{
"name": "Pierre-Marie Dartus",
"githubUsername": "pmdartus",
"url": "https://github.com/pmdartus"
},
{
"name": "Jed Fox",
"githubUsername": "j-f1",
"url": "https://github.com/j-f1"
},
{
"name": "Saad Quadri",
"githubUsername": "saadq",
"url": "https://github.com/saadq"
},
{
"name": "Jason Kwok",
"githubUsername": "JasonHK",
"url": "https://github.com/JasonHK"
},
{
"name": "Brad Zacher",
"githubUsername": "bradzacher",
"url": "https://github.com/bradzacher"
},
{
"name": "JounQin",
"githubUsername": "JounQin",
"url": "https://github.com/JounQin"
},
{
"name": "Bryan Mishkin",
"githubUsername": "bmish",
"url": "https://github.com/bmish"
}
],
"main": "",
"types": "index.d.ts",
"exports": {
".": {
"types": "./index.d.ts"
},
"./use-at-your-own-risk": {
"types": "./use-at-your-own-risk.d.ts"
},
"./rules": {
"types": "./rules/index.d.ts"
},
"./package.json": "./package.json"
},
"repository": {
"type": "git",
"url": "https://github.com/DefinitelyTyped/DefinitelyTyped.git",
"directory": "types/eslint"
},
"scripts": {},
"dependencies": {
"@types/estree": "*",
"@types/json-schema": "*"
},
"typesPublisherContentHash": "bc2620143f844d291da2d199e7b8e2605e3277f1941a508dc72ac92843b149b6",
"typeScriptVersion": "4.8"
}
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import { Linter } from "../index";
export interface Deprecated extends Linter.RulesRecord {
/**
* Rule to enforce consistent indentation.
*
* @since 4.0.0-alpha.0
* @deprecated since 4.0.0, use [`indent`](https://eslint.org/docs/rules/indent) instead.
* @see https://eslint.org/docs/rules/indent-legacy
*/
"indent-legacy": Linter.RuleEntry<
[
number | "tab",
Partial<{
/**
* @default 0
*/
SwitchCase: number;
/**
* @default 1
*/
VariableDeclarator:
| Partial<{
/**
* @default 1
*/
var: number | "first";
/**
* @default 1
*/
let: number | "first";
/**
* @default 1
*/
const: number | "first";
}>
| number
| "first";
/**
* @default 1
*/
outerIIFEBody: number;
/**
* @default 1
*/
MemberExpression: number | "off";
/**
* @default { parameters: 1, body: 1 }
*/
FunctionDeclaration: Partial<{
/**
* @default 1
*/
parameters: number | "first" | "off";
/**
* @default 1
*/
body: number;
}>;
/**
* @default { parameters: 1, body: 1 }
*/
FunctionExpression: Partial<{
/**
* @default 1
*/
parameters: number | "first" | "off";
/**
* @default 1
*/
body: number;
}>;
/**
* @default { arguments: 1 }
*/
CallExpression: Partial<{
/**
* @default 1
*/
arguments: number | "first" | "off";
}>;
/**
* @default 1
*/
ArrayExpression: number | "first" | "off";
/**
* @default 1
*/
ObjectExpression: number | "first" | "off";
/**
* @default 1
*/
ImportDeclaration: number | "first" | "off";
/**
* @default false
*/
flatTernaryExpressions: boolean;
ignoredNodes: string[];
/**
* @default false
*/
ignoreComments: boolean;
}>,
]
>;
/**
* Rule to require or disallow newlines around directives.
*
* @since 3.5.0
* @deprecated since 4.0.0, use [`padding-line-between-statements`](https://eslint.org/docs/rules/padding-line-between-statements) instead.
* @see https://eslint.org/docs/rules/lines-around-directive
*/
"lines-around-directive": Linter.RuleEntry<["always" | "never"]>;
/**
* Rule to require or disallow an empty line after variable declarations.
*
* @since 0.18.0
* @deprecated since 4.0.0, use [`padding-line-between-statements`](https://eslint.org/docs/rules/padding-line-between-statements) instead.
* @see https://eslint.org/docs/rules/newline-after-var
*/
"newline-after-var": Linter.RuleEntry<["always" | "never"]>;
/**
* Rule to require an empty line before `return` statements.
*
* @since 2.3.0
* @deprecated since 4.0.0, use [`padding-line-between-statements`](https://eslint.org/docs/rules/padding-line-between-statements) instead.
* @see https://eslint.org/docs/rules/newline-before-return
*/
"newline-before-return": Linter.RuleEntry<[]>;
/**
* Rule to disallow shadowing of variables inside of `catch`.
*
* @since 0.0.9
* @deprecated since 5.1.0, use [`no-shadow`](https://eslint.org/docs/rules/no-shadow) instead.
* @see https://eslint.org/docs/rules/no-catch-shadow
*/
"no-catch-shadow": Linter.RuleEntry<[]>;
/**
* Rule to disallow reassignment of native objects.
*
* @since 0.0.9
* @deprecated since 3.3.0, use [`no-global-assign`](https://eslint.org/docs/rules/no-global-assign) instead.
* @see https://eslint.org/docs/rules/no-native-reassign
*/
"no-native-reassign": Linter.RuleEntry<
[
Partial<{
exceptions: string[];
}>,
]
>;
/**
* Rule to disallow negating the left operand in `in` expressions.
*
* @since 0.1.2
* @deprecated since 3.3.0, use [`no-unsafe-negation`](https://eslint.org/docs/rules/no-unsafe-negation) instead.
* @see https://eslint.org/docs/rules/no-negated-in-lhs
*/
"no-negated-in-lhs": Linter.RuleEntry<[]>;
/**
* Rule to disallow spacing between function identifiers and their applications.
*
* @since 0.1.2
* @deprecated since 3.3.0, use [`func-call-spacing`](https://eslint.org/docs/rules/func-call-spacing) instead.
* @see https://eslint.org/docs/rules/no-spaced-func
*/
"no-spaced-func": Linter.RuleEntry<[]>;
/**
* Rule to suggest using `Reflect` methods where applicable.
*
* @since 1.0.0-rc-2
* @deprecated since 3.9.0
* @see https://eslint.org/docs/rules/prefer-reflect
*/
"prefer-reflect": Linter.RuleEntry<
[
Partial<{
exceptions: string[];
}>,
]
>;
/**
* Rule to require JSDoc comments.
*
* @since 1.4.0
* @deprecated since 5.10.0
* @see https://eslint.org/docs/rules/require-jsdoc
*/
"require-jsdoc": Linter.RuleEntry<
[
Partial<{
require: Partial<{
/**
* @default true
*/
FunctionDeclaration: boolean;
/**
* @default false
*/
MethodDefinition: boolean;
/**
* @default false
*/
ClassDeclaration: boolean;
/**
* @default false
*/
ArrowFunctionExpression: boolean;
/**
* @default false
*/
FunctionExpression: boolean;
}>;
}>,
]
>;
/**
* Rule to enforce valid JSDoc comments.
*
* @since 0.4.0
* @deprecated since 5.10.0
* @see https://eslint.org/docs/rules/valid-jsdoc
*/
"valid-jsdoc": Linter.RuleEntry<
[
Partial<{
prefer: Record<string, string>;
preferType: Record<string, string>;
/**
* @default true
*/
requireReturn: boolean;
/**
* @default true
*/
requireReturnType: boolean;
/**
* @remarks
* Also accept for regular expression pattern
*/
matchDescription: string;
/**
* @default true
*/
requireParamDescription: boolean;
/**
* @default true
*/
requireReturnDescription: boolean;
/**
* @default true
*/
requireParamType: boolean;
}>,
]
>;
}
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import { Linter } from "../index";
export interface ECMAScript6 extends Linter.RulesRecord {
/**
* Rule to require braces around arrow function bodies.
*
* @since 1.8.0
* @see https://eslint.org/docs/rules/arrow-body-style
*/
"arrow-body-style":
| Linter.RuleEntry<
[
"as-needed",
Partial<{
/**
* @default false
*/
requireReturnForObjectLiteral: boolean;
}>,
]
>
| Linter.RuleEntry<["always" | "never"]>;
/**
* Rule to require parentheses around arrow function arguments.
*
* @since 1.0.0-rc-1
* @see https://eslint.org/docs/rules/arrow-parens
*/
"arrow-parens":
| Linter.RuleEntry<["always"]>
| Linter.RuleEntry<
[
"as-needed",
Partial<{
/**
* @default false
*/
requireForBlockBody: boolean;
}>,
]
>;
/**
* Rule to enforce consistent spacing before and after the arrow in arrow functions.
*
* @since 1.0.0-rc-1
* @see https://eslint.org/docs/rules/arrow-spacing
*/
"arrow-spacing": Linter.RuleEntry<[]>;
/**
* Rule to require `super()` calls in constructors.
*
* @remarks
* Recommended by ESLint, the rule was enabled in `eslint:recommended`.
*
* @since 0.24.0
* @see https://eslint.org/docs/rules/constructor-super
*/
"constructor-super": Linter.RuleEntry<[]>;
/**
* Rule to enforce consistent spacing around `*` operators in generator functions.
*
* @since 0.17.0
* @see https://eslint.org/docs/rules/generator-star-spacing
*/
"generator-star-spacing": Linter.RuleEntry<
[
| Partial<{
before: boolean;
after: boolean;
named:
| Partial<{
before: boolean;
after: boolean;
}>
| "before"
| "after"
| "both"
| "neither";
anonymous:
| Partial<{
before: boolean;
after: boolean;
}>
| "before"
| "after"
| "both"
| "neither";
method:
| Partial<{
before: boolean;
after: boolean;
}>
| "before"
| "after"
| "both"
| "neither";
}>
| "before"
| "after"
| "both"
| "neither",
]
>;
/**
* Require or disallow logical assignment operator shorthand.
*
* @since 8.24.0
* @see https://eslint.org/docs/rules/logical-assignment-operators
*/
"logical-assignment-operators":
| Linter.RuleEntry<
[
"always",
Partial<{
/**
* @default false
*/
enforceForIfStatements: boolean;
}>,
]
>
| Linter.RuleEntry<["never"]>;
/**
* Rule to disallow reassigning class members.
*
* @remarks
* Recommended by ESLint, the rule was enabled in `eslint:recommended`.
*
* @since 1.0.0-rc-1
* @see https://eslint.org/docs/rules/no-class-assign
*/
"no-class-assign": Linter.RuleEntry<[]>;
/**
* Rule to disallow arrow functions where they could be confused with comparisons.
*
* @since 2.0.0-alpha-2
* @see https://eslint.org/docs/rules/no-confusing-arrow
*/
"no-confusing-arrow": Linter.RuleEntry<
[
Partial<{
/**
* @default true
*/
allowParens: boolean;
}>,
]
>;
/**
* Rule to disallow reassigning `const` variables.
*
* @remarks
* Recommended by ESLint, the rule was enabled in `eslint:recommended`.
*
* @since 1.0.0-rc-1
* @see https://eslint.org/docs/rules/no-const-assign
*/
"no-const-assign": Linter.RuleEntry<[]>;
/**
* Rule to disallow duplicate class members.
*
* @remarks
* Recommended by ESLint, the rule was enabled in `eslint:recommended`.
*
* @since 1.2.0
* @see https://eslint.org/docs/rules/no-dupe-class-members
*/
"no-dupe-class-members": Linter.RuleEntry<[]>;
/**
* Rule to disallow duplicate module imports.
*
* @since 2.5.0
* @see https://eslint.org/docs/rules/no-duplicate-imports
*/
"no-duplicate-imports": Linter.RuleEntry<
[
Partial<{
/**
* @default false
*/
includeExports: boolean;
}>,
]
>;
/**
* Rule to disallow `new` operators with the `Symbol` object.
*
* @remarks
* Recommended by ESLint, the rule was enabled in `eslint:recommended`.
*
* @since 2.0.0-beta.1
* @see https://eslint.org/docs/rules/no-new-symbol
*/
"no-new-symbol": Linter.RuleEntry<[]>;
/**
* Rule to disallow specified modules when loaded by `import`.
*
* @since 2.0.0-alpha-1
* @see https://eslint.org/docs/rules/no-restricted-imports
*/
"no-restricted-imports": Linter.RuleEntry<
[
...Array<
| string
| {
name: string;
importNames?: string[] | undefined;
message?: string | undefined;
}
| Partial<{
paths: Array<
| string
| {
name: string;
importNames?: string[] | undefined;
message?: string | undefined;
}
>;
patterns: string[];
}>
>,
]
>;
/**
* Rule to disallow `this`/`super` before calling `super()` in constructors.
*
* @remarks
* Recommended by ESLint, the rule was enabled in `eslint:recommended`.
*
* @since 0.24.0
* @see https://eslint.org/docs/rules/no-this-before-super
*/
"no-this-before-super": Linter.RuleEntry<[]>;
/**
* Rule to disallow unnecessary computed property keys in object literals.
*
* @since 2.9.0
* @see https://eslint.org/docs/rules/no-useless-computed-key
*/
"no-useless-computed-key": Linter.RuleEntry<[]>;
/**
* Rule to disallow unnecessary constructors.
*
* @since 2.0.0-beta.1
* @see https://eslint.org/docs/rules/no-useless-constructor
*/
"no-useless-constructor": Linter.RuleEntry<[]>;
/**
* Rule to disallow renaming import, export, and destructured assignments to the same name.
*
* @since 2.11.0
* @see https://eslint.org/docs/rules/no-useless-rename
*/
"no-useless-rename": Linter.RuleEntry<
[
Partial<{
/**
* @default false
*/
ignoreImport: boolean;
/**
* @default false
*/
ignoreExport: boolean;
/**
* @default false
*/
ignoreDestructuring: boolean;
}>,
]
>;
/**
* Rule to require `let` or `const` instead of `var`.
*
* @since 0.12.0
* @see https://eslint.org/docs/rules/no-var
*/
"no-var": Linter.RuleEntry<[]>;
/**
* Rule to require or disallow method and property shorthand syntax for object literals.
*
* @since 0.20.0
* @see https://eslint.org/docs/rules/object-shorthand
*/
"object-shorthand":
| Linter.RuleEntry<
[
"always" | "methods",
Partial<{
/**
* @default false
*/
avoidQuotes: boolean;
/**
* @default false
*/
ignoreConstructors: boolean;
/**
* @default false
*/
avoidExplicitReturnArrows: boolean;
}>,
]
>
| Linter.RuleEntry<
[
"properties",
Partial<{
/**
* @default false
*/
avoidQuotes: boolean;
}>,
]
>
| Linter.RuleEntry<["never" | "consistent" | "consistent-as-needed"]>;
/**
* Rule to require using arrow functions for callbacks.
*
* @since 1.2.0
* @see https://eslint.org/docs/rules/prefer-arrow-callback
*/
"prefer-arrow-callback": Linter.RuleEntry<
[
Partial<{
/**
* @default false
*/
allowNamedFunctions: boolean;
/**
* @default true
*/
allowUnboundThis: boolean;
}>,
]
>;
/**
* Rule to require `const` declarations for variables that are never reassigned after declared.
*
* @since 0.23.0
* @see https://eslint.org/docs/rules/prefer-const
*/
"prefer-const": Linter.RuleEntry<
[
Partial<{
/**
* @default 'any'
*/
destructuring: "any" | "all";
/**
* @default false
*/
ignoreReadBeforeAssign: boolean;
}>,
]
>;
/**
* Rule to require destructuring from arrays and/or objects.
*
* @since 3.13.0
* @see https://eslint.org/docs/rules/prefer-destructuring
*/
"prefer-destructuring": Linter.RuleEntry<
[
Partial<
| {
VariableDeclarator: Partial<{
array: boolean;
object: boolean;
}>;
AssignmentExpression: Partial<{
array: boolean;
object: boolean;
}>;
}
| {
array: boolean;
object: boolean;
}
>,
Partial<{
enforceForRenamedProperties: boolean;
}>,
]
>;
/**
* Disallow the use of `Math.pow` in favor of the `**` operator.
*
* @since 6.7.0
* @see https://eslint.org/docs/latest/rules/prefer-exponentiation-operator
*/
"prefer-exponentiation-operator": Linter.RuleEntry<[]>;
/**
* Rule to disallow `parseInt()` and `Number.parseInt()` in favor of binary, octal, and hexadecimal literals.
*
* @since 3.5.0
* @see https://eslint.org/docs/rules/prefer-numeric-literals
*/
"prefer-numeric-literals": Linter.RuleEntry<[]>;
/**
* Rule to require rest parameters instead of `arguments`.
*
* @since 2.0.0-alpha-1
* @see https://eslint.org/docs/rules/prefer-rest-params
*/
"prefer-rest-params": Linter.RuleEntry<[]>;
/**
* Rule to require spread operators instead of `.apply()`.
*
* @since 1.0.0-rc-1
* @see https://eslint.org/docs/rules/prefer-spread
*/
"prefer-spread": Linter.RuleEntry<[]>;
/**
* Rule to require template literals instead of string concatenation.
*
* @since 1.2.0
* @see https://eslint.org/docs/rules/prefer-template
*/
"prefer-template": Linter.RuleEntry<[]>;
/**
* Rule to require generator functions to contain `yield`.
*
* @remarks
* Recommended by ESLint, the rule was enabled in `eslint:recommended`.
*
* @since 1.0.0-rc-1
* @see https://eslint.org/docs/rules/require-yield
*/
"require-yield": Linter.RuleEntry<[]>;
/**
* Rule to enforce spacing between rest and spread operators and their expressions.
*
* @since 2.12.0
* @see https://eslint.org/docs/rules/rest-spread-spacing
*/
"rest-spread-spacing": Linter.RuleEntry<["never" | "always"]>;
/**
* Rule to enforce sorted import declarations within modules.
*
* @since 2.0.0-beta.1
* @see https://eslint.org/docs/rules/sort-imports
*/
"sort-imports": Linter.RuleEntry<
[
Partial<{
/**
* @default false
*/
ignoreCase: boolean;
/**
* @default false
*/
ignoreDeclarationSort: boolean;
/**
* @default false
*/
ignoreMemberSort: boolean;
/**
* @default ['none', 'all', 'multiple', 'single']
*/
memberSyntaxSortOrder: Array<"none" | "all" | "multiple" | "single">;
/**
* @default false
*/
allowSeparatedGroups: boolean;
}>,
]
>;
/**
* Rule to require symbol descriptions.
*
* @since 3.4.0
* @see https://eslint.org/docs/rules/symbol-description
*/
"symbol-description": Linter.RuleEntry<[]>;
/**
* Rule to require or disallow spacing around embedded expressions of template strings.
*
* @since 2.0.0-rc.0
* @see https://eslint.org/docs/rules/template-curly-spacing
*/
"template-curly-spacing": Linter.RuleEntry<["never" | "always"]>;
/**
* Rule to require or disallow spacing around the `*` in `yield*` expressions.
*
* @since 2.0.0-alpha-1
* @see https://eslint.org/docs/rules/yield-star-spacing
*/
"yield-star-spacing": Linter.RuleEntry<
[
| Partial<{
before: boolean;
after: boolean;
}>
| "before"
| "after"
| "both"
| "neither",
]
>;
}
+23
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import { Linter } from "../index";
import { BestPractices } from "./best-practices";
import { Deprecated } from "./deprecated";
import { ECMAScript6 } from "./ecmascript-6";
import { NodeJSAndCommonJS } from "./node-commonjs";
import { PossibleErrors } from "./possible-errors";
import { StrictMode } from "./strict-mode";
import { StylisticIssues } from "./stylistic-issues";
import { Variables } from "./variables";
export interface ESLintRules
extends
Linter.RulesRecord,
PossibleErrors,
BestPractices,
StrictMode,
Variables,
NodeJSAndCommonJS,
StylisticIssues,
ECMAScript6,
Deprecated
{}
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import { Linter } from "../index";
export interface NodeJSAndCommonJS extends Linter.RulesRecord {
/**
* Rule to require `return` statements after callbacks.
*
* @since 1.0.0-rc-1
* @see https://eslint.org/docs/rules/callback-return
*/
"callback-return": Linter.RuleEntry<[string[]]>;
/**
* Rule to require `require()` calls to be placed at top-level module scope.
*
* @since 1.4.0
* @see https://eslint.org/docs/rules/global-require
*/
"global-require": Linter.RuleEntry<[]>;
/**
* Rule to require error handling in callbacks.
*
* @since 0.4.5
* @see https://eslint.org/docs/rules/handle-callback-err
*/
"handle-callback-err": Linter.RuleEntry<[string]>;
/**
* Rule to disallow use of the `Buffer()` constructor.
*
* @since 4.0.0-alpha.0
* @see https://eslint.org/docs/rules/no-buffer-constructor
*/
"no-buffer-constructor": Linter.RuleEntry<[]>;
/**
* Rule to disallow `require` calls to be mixed with regular variable declarations.
*
* @since 0.0.9
* @see https://eslint.org/docs/rules/no-mixed-requires
*/
"no-mixed-requires": Linter.RuleEntry<
[
Partial<{
/**
* @default false
*/
grouping: boolean;
/**
* @default false
*/
allowCall: boolean;
}>,
]
>;
/**
* Rule to disallow `new` operators with calls to `require`.
*
* @since 0.6.0
* @see https://eslint.org/docs/rules/no-new-require
*/
"no-new-require": Linter.RuleEntry<[]>;
/**
* Rule to disallow string concatenation when using `__dirname` and `__filename`.
*
* @since 0.4.0
* @see https://eslint.org/docs/rules/no-path-concat
*/
"no-path-concat": Linter.RuleEntry<[]>;
/**
* Rule to disallow the use of `process.env`.
*
* @since 0.9.0
* @see https://eslint.org/docs/rules/no-process-env
*/
"no-process-env": Linter.RuleEntry<[]>;
/**
* Rule to disallow the use of `process.exit()`.
*
* @since 0.4.0
* @see https://eslint.org/docs/rules/no-process-exit
*/
"no-process-exit": Linter.RuleEntry<[]>;
/**
* Rule to disallow specified modules when loaded by `require`.
*
* @since 0.6.0
* @see https://eslint.org/docs/rules/no-restricted-modules
*/
"no-restricted-modules": Linter.RuleEntry<
[
...Array<
| string
| {
name: string;
message?: string | undefined;
}
| Partial<{
paths: Array<
| string
| {
name: string;
message?: string | undefined;
}
>;
patterns: string[];
}>
>,
]
>;
/**
* Rule to disallow synchronous methods.
*
* @since 0.0.9
* @see https://eslint.org/docs/rules/no-sync
*/
"no-sync": Linter.RuleEntry<
[
{
/**
* @default false
*/
allowAtRootLevel: boolean;
},
]
>;
}
+571
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import { Linter } from "../index";
export interface PossibleErrors extends Linter.RulesRecord {
/**
* Rule to enforce `for` loop update clause moving the counter in the right direction.
*
* @remarks
* Recommended by ESLint, the rule was enabled in `eslint:recommended`.
*
* @since 4.0.0-beta.0
* @see https://eslint.org/docs/rules/for-direction
*/
"for-direction": Linter.RuleEntry<[]>;
/**
* Rule to enforce `return` statements in getters.
*
* @remarks
* Recommended by ESLint, the rule was enabled in `eslint:recommended`.
*
* @since 4.2.0
* @see https://eslint.org/docs/rules/getter-return
*/
"getter-return": Linter.RuleEntry<
[
Partial<{
/**
* @default false
*/
allowImplicit: boolean;
}>,
]
>;
/**
* Rule to disallow using an async function as a `Promise` executor.
*
* @remarks
* Recommended by ESLint, the rule was enabled in `eslint:recommended`.
*
* @since 5.3.0
* @see https://eslint.org/docs/rules/no-async-promise-executor
*/
"no-async-promise-executor": Linter.RuleEntry<[]>;
/**
* Rule to disallow `await` inside of loops.
*
* @since 3.12.0
* @see https://eslint.org/docs/rules/no-await-in-loop
*/
"no-await-in-loop": Linter.RuleEntry<[]>;
/**
* Rule to disallow comparing against `-0`.
*
* @remarks
* Recommended by ESLint, the rule was enabled in `eslint:recommended`.
*
* @since 3.17.0
* @see https://eslint.org/docs/rules/no-compare-neg-zero
*/
"no-compare-neg-zero": Linter.RuleEntry<[]>;
/**
* Rule to disallow assignment operators in conditional statements.
*
* @remarks
* Recommended by ESLint, the rule was enabled in `eslint:recommended`.
*
* @since 0.0.9
* @see https://eslint.org/docs/rules/no-cond-assign
*/
"no-cond-assign": Linter.RuleEntry<["except-parens" | "always"]>;
/**
* Rule to disallow the use of `console`.
*
* @since 0.0.2
* @see https://eslint.org/docs/rules/no-console
*/
"no-console": Linter.RuleEntry<
[
Partial<{
allow: Array<keyof Console>;
}>,
]
>;
/**
* Rule to disallow constant expressions in conditions.
*
* @remarks
* Recommended by ESLint, the rule was enabled in `eslint:recommended`.
*
* @since 0.4.1
* @see https://eslint.org/docs/rules/no-constant-condition
*/
"no-constant-condition": Linter.RuleEntry<
[
{
/**
* @default true
*/
checkLoops: boolean;
},
]
>;
/**
* Rule to disallow control characters in regular expressions.
*
* @remarks
* Recommended by ESLint, the rule was enabled in `eslint:recommended`.
*
* @since 0.1.0
* @see https://eslint.org/docs/rules/no-control-regex
*/
"no-control-regex": Linter.RuleEntry<[]>;
/**
* Rule to disallow the use of `debugger`.
*
* @remarks
* Recommended by ESLint, the rule was enabled in `eslint:recommended`.
*
* @since 0.0.2
* @see https://eslint.org/docs/rules/no-debugger
*/
"no-debugger": Linter.RuleEntry<[]>;
/**
* Rule to disallow duplicate arguments in `function` definitions.
*
* @remarks
* Recommended by ESLint, the rule was enabled in `eslint:recommended`.
*
* @since 0.16.0
* @see https://eslint.org/docs/rules/no-dupe-args
*/
"no-dupe-args": Linter.RuleEntry<[]>;
/**
* Disallow duplicate conditions in if-else-if chains.
*
* @remarks
* Recommended by ESLint, the rule was enabled in `eslint:recommended`.
*
* @since 6.7.0
* @see https://eslint.org/docs/rules/no-dupe-else-if
*/
"no-dupe-else-if": Linter.RuleEntry<[]>;
/**
* Rule to disallow duplicate keys in object literals.
*
* @remarks
* Recommended by ESLint, the rule was enabled in `eslint:recommended`.
*
* @since 0.0.9
* @see https://eslint.org/docs/rules/no-dupe-keys
*/
"no-dupe-keys": Linter.RuleEntry<[]>;
/**
* Rule to disallow a duplicate case label.
*
* @remarks
* Recommended by ESLint, the rule was enabled in `eslint:recommended`.
*
* @since 0.17.0
* @see https://eslint.org/docs/rules/no-duplicate-case
*/
"no-duplicate-case": Linter.RuleEntry<[]>;
/**
* Rule to disallow empty block statements.
*
* @remarks
* Recommended by ESLint, the rule was enabled in `eslint:recommended`.
*
* @since 0.0.2
* @see https://eslint.org/docs/rules/no-empty
*/
"no-empty": Linter.RuleEntry<
[
Partial<{
/**
* @default false
*/
allowEmptyCatch: boolean;
}>,
]
>;
/**
* Rule to disallow empty character classes in regular expressions.
*
* @remarks
* Recommended by ESLint, the rule was enabled in `eslint:recommended`.
*
* @since 0.22.0
* @see https://eslint.org/docs/rules/no-empty-character-class
*/
"no-empty-character-class": Linter.RuleEntry<[]>;
/**
* Rule to disallow reassigning exceptions in `catch` clauses.
*
* @remarks
* Recommended by ESLint, the rule was enabled in `eslint:recommended`.
*
* @since 0.0.9
* @see https://eslint.org/docs/rules/no-ex-assign
*/
"no-ex-assign": Linter.RuleEntry<[]>;
/**
* Rule to disallow unnecessary boolean casts.
*
* @remarks
* Recommended by ESLint, the rule was enabled in `eslint:recommended`.
*
* @since 0.4.0
* @see https://eslint.org/docs/rules/no-extra-boolean-cast
*/
"no-extra-boolean-cast": Linter.RuleEntry<[]>;
/**
* Rule to disallow unnecessary parentheses.
*
* @since 0.1.4
* @see https://eslint.org/docs/rules/no-extra-parens
*/
"no-extra-parens":
| Linter.RuleEntry<
[
"all",
Partial<{
/**
* @default true,
*/
conditionalAssign: boolean;
/**
* @default true
*/
returnAssign: boolean;
/**
* @default true
*/
nestedBinaryExpressions: boolean;
/**
* @default 'none'
*/
ignoreJSX: "none" | "all" | "multi-line" | "single-line";
/**
* @default true
*/
enforceForArrowConditionals: boolean;
}>,
]
>
| Linter.RuleEntry<["functions"]>;
/**
* Rule to disallow unnecessary semicolons.
*
* @remarks
* Recommended by ESLint, the rule was enabled in `eslint:recommended`.
*
* @since 0.0.9
* @see https://eslint.org/docs/rules/no-extra-semi
*/
"no-extra-semi": Linter.RuleEntry<[]>;
/**
* Rule to disallow reassigning `function` declarations.
*
* @remarks
* Recommended by ESLint, the rule was enabled in `eslint:recommended`.
*
* @since 0.0.9
* @see https://eslint.org/docs/rules/no-func-assign
*/
"no-func-assign": Linter.RuleEntry<[]>;
/**
* Rule to disallow variable or `function` declarations in nested blocks.
*
* @remarks
* Recommended by ESLint, the rule was enabled in `eslint:recommended`.
*
* @since 0.6.0
* @see https://eslint.org/docs/rules/no-inner-declarations
*/
"no-inner-declarations": Linter.RuleEntry<["functions" | "both"]>;
/**
* Rule to disallow invalid regular expression strings in `RegExp` constructors.
*
* @remarks
* Recommended by ESLint, the rule was enabled in `eslint:recommended`.
*
* @since 0.1.4
* @see https://eslint.org/docs/rules/no-invalid-regexp
*/
"no-invalid-regexp": Linter.RuleEntry<
[
Partial<{
allowConstructorFlags: string[];
}>,
]
>;
/**
* Rule to disallow irregular whitespace.
*
* @remarks
* Recommended by ESLint, the rule was enabled in `eslint:recommended`.
*
* @since 0.9.0
* @see https://eslint.org/docs/rules/no-irregular-whitespace
*/
"no-irregular-whitespace": Linter.RuleEntry<
[
Partial<{
/**
* @default true
*/
skipStrings: boolean;
/**
* @default false
*/
skipComments: boolean;
/**
* @default false
*/
skipRegExps: boolean;
/**
* @default false
*/
skipTemplates: boolean;
}>,
]
>;
/**
* Disallow literal numbers that lose precision.
*
* @remarks
* Recommended by ESLint, the rule was enabled in `eslint:recommended`.
*
* @since 7.1.0
* @see https://eslint.org/docs/latest/rules/no-loss-of-precision
*/
"no-loss-of-precision": Linter.RuleEntry<[]>;
/**
* Rule to disallow characters which are made with multiple code points in character class syntax.
*
* @remarks
* Recommended by ESLint, the rule was enabled in `eslint:recommended`.
*
* @since 5.3.0
* @see https://eslint.org/docs/rules/no-misleading-character-class
*/
"no-misleading-character-class": Linter.RuleEntry<[]>;
/**
* Rule to disallow calling global object properties as functions.
*
* @remarks
* Recommended by ESLint, the rule was enabled in `eslint:recommended`.
*
* @since 0.0.9
* @see https://eslint.org/docs/rules/no-obj-calls
*/
"no-obj-calls": Linter.RuleEntry<[]>;
/**
* Rule to disallow returning values from Promise executor functions.
*
* @since 7.3.0
* @see https://eslint.org/docs/rules/no-promise-executor-return
*/
"no-promise-executor-return": Linter.RuleEntry<[
{
/**
* @default false
*/
allowVoid?: boolean;
},
]>;
/**
* Rule to disallow use of `Object.prototypes` builtins directly.
*
* @remarks
* Recommended by ESLint, the rule was enabled in `eslint:recommended`.
*
* @since 2.11.0
* @see https://eslint.org/docs/rules/no-prototype-builtins
*/
"no-prototype-builtins": Linter.RuleEntry<[]>;
/**
* Rule to disallow multiple spaces in regular expressions.
*
* @remarks
* Recommended by ESLint, the rule was enabled in `eslint:recommended`.
*
* @since 0.4.0
* @see https://eslint.org/docs/rules/no-regex-spaces
*/
"no-regex-spaces": Linter.RuleEntry<[]>;
/**
* Rule to disallow sparse arrays.
*
* @remarks
* Recommended by ESLint, the rule was enabled in `eslint:recommended`.
*
* @since 0.4.0
* @see https://eslint.org/docs/rules/no-sparse-arrays
*/
"no-sparse-arrays": Linter.RuleEntry<[]>;
/**
* Rule to disallow template literal placeholder syntax in regular strings.
*
* @since 3.3.0
* @see https://eslint.org/docs/rules/no-template-curly-in-string
*/
"no-template-curly-in-string": Linter.RuleEntry<[]>;
/**
* Rule to disallow confusing multiline expressions.
*
* @remarks
* Recommended by ESLint, the rule was enabled in `eslint:recommended`.
*
* @since 0.24.0
* @see https://eslint.org/docs/rules/no-unexpected-multiline
*/
"no-unexpected-multiline": Linter.RuleEntry<[]>;
/**
* Rule to disallow unreachable code after `return`, `throw`, `continue`, and `break` statements.
*
* @remarks
* Recommended by ESLint, the rule was enabled in `eslint:recommended`.
*
* @since 0.0.6
* @see https://eslint.org/docs/rules/no-unreachable
*/
"no-unreachable": Linter.RuleEntry<[]>;
/**
* Disallow loops with a body that allows only one iteration.
*
* @since 7.3.0
* @see https://eslint.org/docs/latest/rules/no-unreachable-loop
*/
"no-unreachable-loop": Linter.RuleEntry<
[
Partial<{
/**
* @default []
*/
ignore: "WhileStatement" | "DoWhileStatement" | "ForStatement" | "ForInStatement" | "ForOfStatement";
}>,
]
>;
/**
* Rule to disallow control flow statements in `finally` blocks.
*
* @remarks
* Recommended by ESLint, the rule was enabled in `eslint:recommended`.
*
* @since 2.9.0
* @see https://eslint.org/docs/rules/no-unsafe-finally
*/
"no-unsafe-finally": Linter.RuleEntry<[]>;
/**
* Rule to disallow negating the left operand of relational operators.
*
* @remarks
* Recommended by ESLint, the rule was enabled in `eslint:recommended`.
*
* @since 3.3.0
* @see https://eslint.org/docs/rules/no-unsafe-negation
*/
"no-unsafe-negation": Linter.RuleEntry<[]>;
/**
* Disallow use of optional chaining in contexts where the `undefined` value is not allowed.
*
* @remarks
* Recommended by ESLint, the rule was enabled in `eslint:recommended`.
*
* @since 7.15.0
* @see https://eslint.org/docs/rules/no-unsafe-optional-chaining
*/
"no-unsafe-optional-chaining": Linter.RuleEntry<
[
Partial<{
/**
* @default false
*/
disallowArithmeticOperators: boolean;
}>,
]
>;
/**
* Rule to disallow assignments that can lead to race conditions due to usage of `await` or `yield`.
*
* @remarks
* Recommended by ESLint, the rule was enabled in `eslint:recommended`.
*
* @since 5.3.0
* @see https://eslint.org/docs/rules/require-atomic-updates
*/
"require-atomic-updates": Linter.RuleEntry<[]>;
/**
* Rule to require calls to `isNaN()` when checking for `NaN`.
*
* @remarks
* Recommended by ESLint, the rule was enabled in `eslint:recommended`.
*
* @since 0.0.6
* @see https://eslint.org/docs/rules/use-isnan
*/
"use-isnan": Linter.RuleEntry<
[
Partial<{
/**
* @default true
*/
enforceForSwitchCase: boolean;
/**
* @default true
*/
enforceForIndexOf: boolean;
}>,
]
>;
/**
* Rule to enforce comparing `typeof` expressions against valid strings.
*
* @remarks
* Recommended by ESLint, the rule was enabled in `eslint:recommended`.
*
* @since 0.5.0
* @see https://eslint.org/docs/rules/valid-typeof
*/
"valid-typeof": Linter.RuleEntry<
[
Partial<{
/**
* @default false
*/
requireStringLiterals: boolean;
}>,
]
>;
}
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import { Linter } from "../index";
export interface StrictMode extends Linter.RulesRecord {
/**
* Rule to require or disallow strict mode directives.
*
* @since 0.1.0
* @see https://eslint.org/docs/rules/strict
*/
strict: Linter.RuleEntry<["safe" | "global" | "function" | "never"]>;
}
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import { Linter } from "../index";
export interface Variables extends Linter.RulesRecord {
/**
* Rule to require or disallow initialization in variable declarations.
*
* @since 1.0.0-rc-1
* @see https://eslint.org/docs/rules/init-declarations
*/
"init-declarations":
| Linter.RuleEntry<["always"]>
| Linter.RuleEntry<
[
"never",
Partial<{
ignoreForLoopInit: boolean;
}>,
]
>;
/**
* Rule to disallow deleting variables.
*
* @remarks
* Recommended by ESLint, the rule was enabled in `eslint:recommended`.
*
* @since 0.0.9
* @see https://eslint.org/docs/rules/no-delete-var
*/
"no-delete-var": Linter.RuleEntry<[]>;
/**
* Rule to disallow labels that share a name with a variable.
*
* @since 0.0.9
* @see https://eslint.org/docs/rules/no-label-var
*/
"no-label-var": Linter.RuleEntry<[]>;
/**
* Rule to disallow specified global variables.
*
* @since 2.3.0
* @see https://eslint.org/docs/rules/no-restricted-globals
*/
"no-restricted-globals": Linter.RuleEntry<
[
...Array<
| string
| {
name: string;
message?: string | undefined;
}
>,
]
>;
/**
* Rule to disallow variable declarations from shadowing variables declared in the outer scope.
*
* @since 0.0.9
* @see https://eslint.org/docs/rules/no-shadow
*/
"no-shadow": Linter.RuleEntry<
[
Partial<{
/**
* @default false
*/
builtinGlobals: boolean;
/**
* @default 'functions'
*/
hoist: "functions" | "all" | "never";
allow: string[];
}>,
]
>;
/**
* Rule to disallow identifiers from shadowing restricted names.
*
* @remarks
* Recommended by ESLint, the rule was enabled in `eslint:recommended`.
*
* @since 0.1.4
* @see https://eslint.org/docs/rules/no-shadow-restricted-names
*/
"no-shadow-restricted-names": Linter.RuleEntry<[]>;
/**
* Rule to disallow the use of undeclared variables unless mentioned in `global` comments.
*
* @remarks
* Recommended by ESLint, the rule was enabled in `eslint:recommended`.
*
* @since 0.0.9
* @see https://eslint.org/docs/rules/no-undef
*/
"no-undef": Linter.RuleEntry<
[
Partial<{
/**
* @default false
*/
typeof: boolean;
}>,
]
>;
/**
* Rule to disallow initializing variables to `undefined`.
*
* @since 0.0.6
* @see https://eslint.org/docs/rules/no-undef-init
*/
"no-undef-init": Linter.RuleEntry<[]>;
/**
* Rule to disallow the use of `undefined` as an identifier.
*
* @since 0.7.1
* @see https://eslint.org/docs/rules/no-undefined
*/
"no-undefined": Linter.RuleEntry<[]>;
/**
* Rule to disallow unused variables.
*
* @remarks
* Recommended by ESLint, the rule was enabled in `eslint:recommended`.
*
* @since 0.0.9
* @see https://eslint.org/docs/rules/no-unused-vars
*/
"no-unused-vars": Linter.RuleEntry<
[
| "all"
| "local"
| Partial<{
/**
* @default 'all'
*/
vars: "all" | "local";
varsIgnorePattern: string;
/**
* @default 'after-used'
*/
args: "after-used" | "all" | "none";
/**
* @default false
*/
ignoreRestSiblings: boolean;
argsIgnorePattern: string;
/**
* @default 'none'
*/
caughtErrors: "none" | "all";
caughtErrorsIgnorePattern: string;
destructuredArrayIgnorePattern: string;
}>,
]
>;
/**
* Rule to disallow the use of variables before they are defined.
*
* @since 0.0.9
* @see https://eslint.org/docs/rules/no-use-before-define
*/
"no-use-before-define": Linter.RuleEntry<
[
| Partial<{
/**
* @default true
*/
functions: boolean;
/**
* @default true
*/
classes: boolean;
/**
* @default true
*/
variables: boolean;
/**
* @default false
*/
allowNamedExports: boolean;
}>
| "nofunc",
]
>;
}
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import { ESLint, Rule } from "./index.js";
/** @deprecated */
export const builtinRules: Map<string, Rule.RuleModule>;
/** @deprecated */
export class FileEnumerator {
constructor(
params?: {
cwd?: string;
configArrayFactory?: any;
extensions?: any;
globInputPaths?: boolean;
errorOnUnmatchedPattern?: boolean;
ignore?: boolean;
},
);
isTargetPath(filePath: string, providedConfig?: any): boolean;
iterateFiles(
patternOrPatterns: string | string[],
): IterableIterator<{ config: any; filePath: string; ignored: boolean }>;
}
export { /** @deprecated */ ESLint as FlatESLint };
/** @deprecated */
export class LegacyESLint {
static configType: "eslintrc";
static readonly version: string;
static outputFixes(results: ESLint.LintResult[]): Promise<void>;
static getErrorResults(results: ESLint.LintResult[]): ESLint.LintResult[];
constructor(options?: ESLint.LegacyOptions);
lintFiles(patterns: string | string[]): Promise<ESLint.LintResult[]>;
lintText(
code: string,
options?: { filePath?: string | undefined; warnIgnored?: boolean | undefined },
): Promise<ESLint.LintResult[]>;
getRulesMetaForResults(results: ESLint.LintResult[]): ESLint.LintResultData["rulesMeta"];
hasFlag(flag: string): false;
calculateConfigForFile(filePath: string): Promise<any>;
isPathIgnored(filePath: string): Promise<boolean>;
loadFormatter(nameOrPath?: string): Promise<ESLint.Formatter>;
}
/** @deprecated */
export function shouldUseFlatConfig(): Promise<boolean>;
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MIT License
Copyright (c) Microsoft Corporation.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE
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# Installation
> `npm install --save @types/estree`
# Summary
This package contains type definitions for estree (https://github.com/estree/estree).
# Details
Files were exported from https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/estree.
### Additional Details
* Last updated: Wed, 18 Sep 2024 09:37:00 GMT
* Dependencies: none
# Credits
These definitions were written by [RReverser](https://github.com/RReverser).
+167
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declare namespace ESTree {
interface FlowTypeAnnotation extends Node {}
interface FlowBaseTypeAnnotation extends FlowTypeAnnotation {}
interface FlowLiteralTypeAnnotation extends FlowTypeAnnotation, Literal {}
interface FlowDeclaration extends Declaration {}
interface AnyTypeAnnotation extends FlowBaseTypeAnnotation {}
interface ArrayTypeAnnotation extends FlowTypeAnnotation {
elementType: FlowTypeAnnotation;
}
interface BooleanLiteralTypeAnnotation extends FlowLiteralTypeAnnotation {}
interface BooleanTypeAnnotation extends FlowBaseTypeAnnotation {}
interface ClassImplements extends Node {
id: Identifier;
typeParameters?: TypeParameterInstantiation | null;
}
interface ClassProperty {
key: Expression;
value?: Expression | null;
typeAnnotation?: TypeAnnotation | null;
computed: boolean;
static: boolean;
}
interface DeclareClass extends FlowDeclaration {
id: Identifier;
typeParameters?: TypeParameterDeclaration | null;
body: ObjectTypeAnnotation;
extends: InterfaceExtends[];
}
interface DeclareFunction extends FlowDeclaration {
id: Identifier;
}
interface DeclareModule extends FlowDeclaration {
id: Literal | Identifier;
body: BlockStatement;
}
interface DeclareVariable extends FlowDeclaration {
id: Identifier;
}
interface FunctionTypeAnnotation extends FlowTypeAnnotation {
params: FunctionTypeParam[];
returnType: FlowTypeAnnotation;
rest?: FunctionTypeParam | null;
typeParameters?: TypeParameterDeclaration | null;
}
interface FunctionTypeParam {
name: Identifier;
typeAnnotation: FlowTypeAnnotation;
optional: boolean;
}
interface GenericTypeAnnotation extends FlowTypeAnnotation {
id: Identifier | QualifiedTypeIdentifier;
typeParameters?: TypeParameterInstantiation | null;
}
interface InterfaceExtends extends Node {
id: Identifier | QualifiedTypeIdentifier;
typeParameters?: TypeParameterInstantiation | null;
}
interface InterfaceDeclaration extends FlowDeclaration {
id: Identifier;
typeParameters?: TypeParameterDeclaration | null;
extends: InterfaceExtends[];
body: ObjectTypeAnnotation;
}
interface IntersectionTypeAnnotation extends FlowTypeAnnotation {
types: FlowTypeAnnotation[];
}
interface MixedTypeAnnotation extends FlowBaseTypeAnnotation {}
interface NullableTypeAnnotation extends FlowTypeAnnotation {
typeAnnotation: TypeAnnotation;
}
interface NumberLiteralTypeAnnotation extends FlowLiteralTypeAnnotation {}
interface NumberTypeAnnotation extends FlowBaseTypeAnnotation {}
interface StringLiteralTypeAnnotation extends FlowLiteralTypeAnnotation {}
interface StringTypeAnnotation extends FlowBaseTypeAnnotation {}
interface TupleTypeAnnotation extends FlowTypeAnnotation {
types: FlowTypeAnnotation[];
}
interface TypeofTypeAnnotation extends FlowTypeAnnotation {
argument: FlowTypeAnnotation;
}
interface TypeAlias extends FlowDeclaration {
id: Identifier;
typeParameters?: TypeParameterDeclaration | null;
right: FlowTypeAnnotation;
}
interface TypeAnnotation extends Node {
typeAnnotation: FlowTypeAnnotation;
}
interface TypeCastExpression extends Expression {
expression: Expression;
typeAnnotation: TypeAnnotation;
}
interface TypeParameterDeclaration extends Node {
params: Identifier[];
}
interface TypeParameterInstantiation extends Node {
params: FlowTypeAnnotation[];
}
interface ObjectTypeAnnotation extends FlowTypeAnnotation {
properties: ObjectTypeProperty[];
indexers: ObjectTypeIndexer[];
callProperties: ObjectTypeCallProperty[];
}
interface ObjectTypeCallProperty extends Node {
value: FunctionTypeAnnotation;
static: boolean;
}
interface ObjectTypeIndexer extends Node {
id: Identifier;
key: FlowTypeAnnotation;
value: FlowTypeAnnotation;
static: boolean;
}
interface ObjectTypeProperty extends Node {
key: Expression;
value: FlowTypeAnnotation;
optional: boolean;
static: boolean;
}
interface QualifiedTypeIdentifier extends Node {
qualification: Identifier | QualifiedTypeIdentifier;
id: Identifier;
}
interface UnionTypeAnnotation extends FlowTypeAnnotation {
types: FlowTypeAnnotation[];
}
interface VoidTypeAnnotation extends FlowBaseTypeAnnotation {}
}
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// This definition file follows a somewhat unusual format. ESTree allows
// runtime type checks based on the `type` parameter. In order to explain this
// to typescript we want to use discriminated union types:
// https://github.com/Microsoft/TypeScript/pull/9163
//
// For ESTree this is a bit tricky because the high level interfaces like
// Node or Function are pulling double duty. We want to pass common fields down
// to the interfaces that extend them (like Identifier or
// ArrowFunctionExpression), but you can't extend a type union or enforce
// common fields on them. So we've split the high level interfaces into two
// types, a base type which passes down inherited fields, and a type union of
// all types which extend the base type. Only the type union is exported, and
// the union is how other types refer to the collection of inheriting types.
//
// This makes the definitions file here somewhat more difficult to maintain,
// but it has the notable advantage of making ESTree much easier to use as
// an end user.
export interface BaseNodeWithoutComments {
// Every leaf interface that extends BaseNode must specify a type property.
// The type property should be a string literal. For example, Identifier
// has: `type: "Identifier"`
type: string;
loc?: SourceLocation | null | undefined;
range?: [number, number] | undefined;
}
export interface BaseNode extends BaseNodeWithoutComments {
leadingComments?: Comment[] | undefined;
trailingComments?: Comment[] | undefined;
}
export interface NodeMap {
AssignmentProperty: AssignmentProperty;
CatchClause: CatchClause;
Class: Class;
ClassBody: ClassBody;
Expression: Expression;
Function: Function;
Identifier: Identifier;
Literal: Literal;
MethodDefinition: MethodDefinition;
ModuleDeclaration: ModuleDeclaration;
ModuleSpecifier: ModuleSpecifier;
Pattern: Pattern;
PrivateIdentifier: PrivateIdentifier;
Program: Program;
Property: Property;
PropertyDefinition: PropertyDefinition;
SpreadElement: SpreadElement;
Statement: Statement;
Super: Super;
SwitchCase: SwitchCase;
TemplateElement: TemplateElement;
VariableDeclarator: VariableDeclarator;
}
export type Node = NodeMap[keyof NodeMap];
export interface Comment extends BaseNodeWithoutComments {
type: "Line" | "Block";
value: string;
}
export interface SourceLocation {
source?: string | null | undefined;
start: Position;
end: Position;
}
export interface Position {
/** >= 1 */
line: number;
/** >= 0 */
column: number;
}
export interface Program extends BaseNode {
type: "Program";
sourceType: "script" | "module";
body: Array<Directive | Statement | ModuleDeclaration>;
comments?: Comment[] | undefined;
}
export interface Directive extends BaseNode {
type: "ExpressionStatement";
expression: Literal;
directive: string;
}
export interface BaseFunction extends BaseNode {
params: Pattern[];
generator?: boolean | undefined;
async?: boolean | undefined;
// The body is either BlockStatement or Expression because arrow functions
// can have a body that's either. FunctionDeclarations and
// FunctionExpressions have only BlockStatement bodies.
body: BlockStatement | Expression;
}
export type Function = FunctionDeclaration | FunctionExpression | ArrowFunctionExpression;
export type Statement =
| ExpressionStatement
| BlockStatement
| StaticBlock
| EmptyStatement
| DebuggerStatement
| WithStatement
| ReturnStatement
| LabeledStatement
| BreakStatement
| ContinueStatement
| IfStatement
| SwitchStatement
| ThrowStatement
| TryStatement
| WhileStatement
| DoWhileStatement
| ForStatement
| ForInStatement
| ForOfStatement
| Declaration;
export interface BaseStatement extends BaseNode {}
export interface EmptyStatement extends BaseStatement {
type: "EmptyStatement";
}
export interface BlockStatement extends BaseStatement {
type: "BlockStatement";
body: Statement[];
innerComments?: Comment[] | undefined;
}
export interface StaticBlock extends Omit<BlockStatement, "type"> {
type: "StaticBlock";
}
export interface ExpressionStatement extends BaseStatement {
type: "ExpressionStatement";
expression: Expression;
}
export interface IfStatement extends BaseStatement {
type: "IfStatement";
test: Expression;
consequent: Statement;
alternate?: Statement | null | undefined;
}
export interface LabeledStatement extends BaseStatement {
type: "LabeledStatement";
label: Identifier;
body: Statement;
}
export interface BreakStatement extends BaseStatement {
type: "BreakStatement";
label?: Identifier | null | undefined;
}
export interface ContinueStatement extends BaseStatement {
type: "ContinueStatement";
label?: Identifier | null | undefined;
}
export interface WithStatement extends BaseStatement {
type: "WithStatement";
object: Expression;
body: Statement;
}
export interface SwitchStatement extends BaseStatement {
type: "SwitchStatement";
discriminant: Expression;
cases: SwitchCase[];
}
export interface ReturnStatement extends BaseStatement {
type: "ReturnStatement";
argument?: Expression | null | undefined;
}
export interface ThrowStatement extends BaseStatement {
type: "ThrowStatement";
argument: Expression;
}
export interface TryStatement extends BaseStatement {
type: "TryStatement";
block: BlockStatement;
handler?: CatchClause | null | undefined;
finalizer?: BlockStatement | null | undefined;
}
export interface WhileStatement extends BaseStatement {
type: "WhileStatement";
test: Expression;
body: Statement;
}
export interface DoWhileStatement extends BaseStatement {
type: "DoWhileStatement";
body: Statement;
test: Expression;
}
export interface ForStatement extends BaseStatement {
type: "ForStatement";
init?: VariableDeclaration | Expression | null | undefined;
test?: Expression | null | undefined;
update?: Expression | null | undefined;
body: Statement;
}
export interface BaseForXStatement extends BaseStatement {
left: VariableDeclaration | Pattern;
right: Expression;
body: Statement;
}
export interface ForInStatement extends BaseForXStatement {
type: "ForInStatement";
}
export interface DebuggerStatement extends BaseStatement {
type: "DebuggerStatement";
}
export type Declaration = FunctionDeclaration | VariableDeclaration | ClassDeclaration;
export interface BaseDeclaration extends BaseStatement {}
export interface MaybeNamedFunctionDeclaration extends BaseFunction, BaseDeclaration {
type: "FunctionDeclaration";
/** It is null when a function declaration is a part of the `export default function` statement */
id: Identifier | null;
body: BlockStatement;
}
export interface FunctionDeclaration extends MaybeNamedFunctionDeclaration {
id: Identifier;
}
export interface VariableDeclaration extends BaseDeclaration {
type: "VariableDeclaration";
declarations: VariableDeclarator[];
kind: "var" | "let" | "const";
}
export interface VariableDeclarator extends BaseNode {
type: "VariableDeclarator";
id: Pattern;
init?: Expression | null | undefined;
}
export interface ExpressionMap {
ArrayExpression: ArrayExpression;
ArrowFunctionExpression: ArrowFunctionExpression;
AssignmentExpression: AssignmentExpression;
AwaitExpression: AwaitExpression;
BinaryExpression: BinaryExpression;
CallExpression: CallExpression;
ChainExpression: ChainExpression;
ClassExpression: ClassExpression;
ConditionalExpression: ConditionalExpression;
FunctionExpression: FunctionExpression;
Identifier: Identifier;
ImportExpression: ImportExpression;
Literal: Literal;
LogicalExpression: LogicalExpression;
MemberExpression: MemberExpression;
MetaProperty: MetaProperty;
NewExpression: NewExpression;
ObjectExpression: ObjectExpression;
SequenceExpression: SequenceExpression;
TaggedTemplateExpression: TaggedTemplateExpression;
TemplateLiteral: TemplateLiteral;
ThisExpression: ThisExpression;
UnaryExpression: UnaryExpression;
UpdateExpression: UpdateExpression;
YieldExpression: YieldExpression;
}
export type Expression = ExpressionMap[keyof ExpressionMap];
export interface BaseExpression extends BaseNode {}
export type ChainElement = SimpleCallExpression | MemberExpression;
export interface ChainExpression extends BaseExpression {
type: "ChainExpression";
expression: ChainElement;
}
export interface ThisExpression extends BaseExpression {
type: "ThisExpression";
}
export interface ArrayExpression extends BaseExpression {
type: "ArrayExpression";
elements: Array<Expression | SpreadElement | null>;
}
export interface ObjectExpression extends BaseExpression {
type: "ObjectExpression";
properties: Array<Property | SpreadElement>;
}
export interface PrivateIdentifier extends BaseNode {
type: "PrivateIdentifier";
name: string;
}
export interface Property extends BaseNode {
type: "Property";
key: Expression | PrivateIdentifier;
value: Expression | Pattern; // Could be an AssignmentProperty
kind: "init" | "get" | "set";
method: boolean;
shorthand: boolean;
computed: boolean;
}
export interface PropertyDefinition extends BaseNode {
type: "PropertyDefinition";
key: Expression | PrivateIdentifier;
value?: Expression | null | undefined;
computed: boolean;
static: boolean;
}
export interface FunctionExpression extends BaseFunction, BaseExpression {
id?: Identifier | null | undefined;
type: "FunctionExpression";
body: BlockStatement;
}
export interface SequenceExpression extends BaseExpression {
type: "SequenceExpression";
expressions: Expression[];
}
export interface UnaryExpression extends BaseExpression {
type: "UnaryExpression";
operator: UnaryOperator;
prefix: true;
argument: Expression;
}
export interface BinaryExpression extends BaseExpression {
type: "BinaryExpression";
operator: BinaryOperator;
left: Expression | PrivateIdentifier;
right: Expression;
}
export interface AssignmentExpression extends BaseExpression {
type: "AssignmentExpression";
operator: AssignmentOperator;
left: Pattern | MemberExpression;
right: Expression;
}
export interface UpdateExpression extends BaseExpression {
type: "UpdateExpression";
operator: UpdateOperator;
argument: Expression;
prefix: boolean;
}
export interface LogicalExpression extends BaseExpression {
type: "LogicalExpression";
operator: LogicalOperator;
left: Expression;
right: Expression;
}
export interface ConditionalExpression extends BaseExpression {
type: "ConditionalExpression";
test: Expression;
alternate: Expression;
consequent: Expression;
}
export interface BaseCallExpression extends BaseExpression {
callee: Expression | Super;
arguments: Array<Expression | SpreadElement>;
}
export type CallExpression = SimpleCallExpression | NewExpression;
export interface SimpleCallExpression extends BaseCallExpression {
type: "CallExpression";
optional: boolean;
}
export interface NewExpression extends BaseCallExpression {
type: "NewExpression";
}
export interface MemberExpression extends BaseExpression, BasePattern {
type: "MemberExpression";
object: Expression | Super;
property: Expression | PrivateIdentifier;
computed: boolean;
optional: boolean;
}
export type Pattern = Identifier | ObjectPattern | ArrayPattern | RestElement | AssignmentPattern | MemberExpression;
export interface BasePattern extends BaseNode {}
export interface SwitchCase extends BaseNode {
type: "SwitchCase";
test?: Expression | null | undefined;
consequent: Statement[];
}
export interface CatchClause extends BaseNode {
type: "CatchClause";
param: Pattern | null;
body: BlockStatement;
}
export interface Identifier extends BaseNode, BaseExpression, BasePattern {
type: "Identifier";
name: string;
}
export type Literal = SimpleLiteral | RegExpLiteral | BigIntLiteral;
export interface SimpleLiteral extends BaseNode, BaseExpression {
type: "Literal";
value: string | boolean | number | null;
raw?: string | undefined;
}
export interface RegExpLiteral extends BaseNode, BaseExpression {
type: "Literal";
value?: RegExp | null | undefined;
regex: {
pattern: string;
flags: string;
};
raw?: string | undefined;
}
export interface BigIntLiteral extends BaseNode, BaseExpression {
type: "Literal";
value?: bigint | null | undefined;
bigint: string;
raw?: string | undefined;
}
export type UnaryOperator = "-" | "+" | "!" | "~" | "typeof" | "void" | "delete";
export type BinaryOperator =
| "=="
| "!="
| "==="
| "!=="
| "<"
| "<="
| ">"
| ">="
| "<<"
| ">>"
| ">>>"
| "+"
| "-"
| "*"
| "/"
| "%"
| "**"
| "|"
| "^"
| "&"
| "in"
| "instanceof";
export type LogicalOperator = "||" | "&&" | "??";
export type AssignmentOperator =
| "="
| "+="
| "-="
| "*="
| "/="
| "%="
| "**="
| "<<="
| ">>="
| ">>>="
| "|="
| "^="
| "&="
| "||="
| "&&="
| "??=";
export type UpdateOperator = "++" | "--";
export interface ForOfStatement extends BaseForXStatement {
type: "ForOfStatement";
await: boolean;
}
export interface Super extends BaseNode {
type: "Super";
}
export interface SpreadElement extends BaseNode {
type: "SpreadElement";
argument: Expression;
}
export interface ArrowFunctionExpression extends BaseExpression, BaseFunction {
type: "ArrowFunctionExpression";
expression: boolean;
body: BlockStatement | Expression;
}
export interface YieldExpression extends BaseExpression {
type: "YieldExpression";
argument?: Expression | null | undefined;
delegate: boolean;
}
export interface TemplateLiteral extends BaseExpression {
type: "TemplateLiteral";
quasis: TemplateElement[];
expressions: Expression[];
}
export interface TaggedTemplateExpression extends BaseExpression {
type: "TaggedTemplateExpression";
tag: Expression;
quasi: TemplateLiteral;
}
export interface TemplateElement extends BaseNode {
type: "TemplateElement";
tail: boolean;
value: {
/** It is null when the template literal is tagged and the text has an invalid escape (e.g. - tag`\unicode and \u{55}`) */
cooked?: string | null | undefined;
raw: string;
};
}
export interface AssignmentProperty extends Property {
value: Pattern;
kind: "init";
method: boolean; // false
}
export interface ObjectPattern extends BasePattern {
type: "ObjectPattern";
properties: Array<AssignmentProperty | RestElement>;
}
export interface ArrayPattern extends BasePattern {
type: "ArrayPattern";
elements: Array<Pattern | null>;
}
export interface RestElement extends BasePattern {
type: "RestElement";
argument: Pattern;
}
export interface AssignmentPattern extends BasePattern {
type: "AssignmentPattern";
left: Pattern;
right: Expression;
}
export type Class = ClassDeclaration | ClassExpression;
export interface BaseClass extends BaseNode {
superClass?: Expression | null | undefined;
body: ClassBody;
}
export interface ClassBody extends BaseNode {
type: "ClassBody";
body: Array<MethodDefinition | PropertyDefinition | StaticBlock>;
}
export interface MethodDefinition extends BaseNode {
type: "MethodDefinition";
key: Expression | PrivateIdentifier;
value: FunctionExpression;
kind: "constructor" | "method" | "get" | "set";
computed: boolean;
static: boolean;
}
export interface MaybeNamedClassDeclaration extends BaseClass, BaseDeclaration {
type: "ClassDeclaration";
/** It is null when a class declaration is a part of the `export default class` statement */
id: Identifier | null;
}
export interface ClassDeclaration extends MaybeNamedClassDeclaration {
id: Identifier;
}
export interface ClassExpression extends BaseClass, BaseExpression {
type: "ClassExpression";
id?: Identifier | null | undefined;
}
export interface MetaProperty extends BaseExpression {
type: "MetaProperty";
meta: Identifier;
property: Identifier;
}
export type ModuleDeclaration =
| ImportDeclaration
| ExportNamedDeclaration
| ExportDefaultDeclaration
| ExportAllDeclaration;
export interface BaseModuleDeclaration extends BaseNode {}
export type ModuleSpecifier = ImportSpecifier | ImportDefaultSpecifier | ImportNamespaceSpecifier | ExportSpecifier;
export interface BaseModuleSpecifier extends BaseNode {
local: Identifier;
}
export interface ImportDeclaration extends BaseModuleDeclaration {
type: "ImportDeclaration";
specifiers: Array<ImportSpecifier | ImportDefaultSpecifier | ImportNamespaceSpecifier>;
source: Literal;
}
export interface ImportSpecifier extends BaseModuleSpecifier {
type: "ImportSpecifier";
imported: Identifier | Literal;
}
export interface ImportExpression extends BaseExpression {
type: "ImportExpression";
source: Expression;
}
export interface ImportDefaultSpecifier extends BaseModuleSpecifier {
type: "ImportDefaultSpecifier";
}
export interface ImportNamespaceSpecifier extends BaseModuleSpecifier {
type: "ImportNamespaceSpecifier";
}
export interface ExportNamedDeclaration extends BaseModuleDeclaration {
type: "ExportNamedDeclaration";
declaration?: Declaration | null | undefined;
specifiers: ExportSpecifier[];
source?: Literal | null | undefined;
}
export interface ExportSpecifier extends Omit<BaseModuleSpecifier, "local"> {
type: "ExportSpecifier";
local: Identifier | Literal;
exported: Identifier | Literal;
}
export interface ExportDefaultDeclaration extends BaseModuleDeclaration {
type: "ExportDefaultDeclaration";
declaration: MaybeNamedFunctionDeclaration | MaybeNamedClassDeclaration | Expression;
}
export interface ExportAllDeclaration extends BaseModuleDeclaration {
type: "ExportAllDeclaration";
exported: Identifier | Literal | null;
source: Literal;
}
export interface AwaitExpression extends BaseExpression {
type: "AwaitExpression";
argument: Expression;
}
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{
"name": "@types/estree",
"version": "1.0.6",
"description": "TypeScript definitions for estree",
"homepage": "https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/estree",
"license": "MIT",
"contributors": [
{
"name": "RReverser",
"githubUsername": "RReverser",
"url": "https://github.com/RReverser"
}
],
"main": "",
"types": "index.d.ts",
"repository": {
"type": "git",
"url": "https://github.com/DefinitelyTyped/DefinitelyTyped.git",
"directory": "types/estree"
},
"scripts": {},
"dependencies": {},
"typesPublisherContentHash": "0310b41994a6f8d7530af6c53d47d8b227f32925e43718507fdb1178e05006b1",
"typeScriptVersion": "4.8",
"nonNpm": true
}
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MIT License
Copyright (c) Microsoft Corporation.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE
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# Installation
> `npm install --save @types/graceful-fs`
# Summary
This package contains type definitions for graceful-fs (https://github.com/isaacs/node-graceful-fs).
# Details
Files were exported from https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/graceful-fs.
## [index.d.ts](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/graceful-fs/index.d.ts)
````ts
/// <reference types="node" />
export * from "fs";
/**
* Use this method to patch the global fs module (or any other fs-like module).
* NOTE: This should only ever be done at the top-level application layer, in order to delay on
* EMFILE errors from any fs-using dependencies. You should **not** do this in a library, because
* it can cause unexpected delays in other parts of the program.
* @param fsModule The reference to the fs module or an fs-like module.
*/
export function gracefulify<T>(fsModule: T): T;
````
### Additional Details
* Last updated: Tue, 07 Nov 2023 03:09:37 GMT
* Dependencies: [@types/node](https://npmjs.com/package/@types/node)
# Credits
These definitions were written by [Bart van der Schoor](https://github.com/Bartvds), and [BendingBender](https://github.com/BendingBender).
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/// <reference types="node" />
export * from "fs";
/**
* Use this method to patch the global fs module (or any other fs-like module).
* NOTE: This should only ever be done at the top-level application layer, in order to delay on
* EMFILE errors from any fs-using dependencies. You should **not** do this in a library, because
* it can cause unexpected delays in other parts of the program.
* @param fsModule The reference to the fs module or an fs-like module.
*/
export function gracefulify<T>(fsModule: T): T;
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{
"name": "@types/graceful-fs",
"version": "4.1.9",
"description": "TypeScript definitions for graceful-fs",
"homepage": "https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/graceful-fs",
"license": "MIT",
"contributors": [
{
"name": "Bart van der Schoor",
"githubUsername": "Bartvds",
"url": "https://github.com/Bartvds"
},
{
"name": "BendingBender",
"githubUsername": "BendingBender",
"url": "https://github.com/BendingBender"
}
],
"main": "",
"types": "index.d.ts",
"repository": {
"type": "git",
"url": "https://github.com/DefinitelyTyped/DefinitelyTyped.git",
"directory": "types/graceful-fs"
},
"scripts": {},
"dependencies": {
"@types/node": "*"
},
"typesPublisherContentHash": "4e85fab24364f5c04bc484efb612d1c679702932e21e6f4f30c297aa14e21b36",
"typeScriptVersion": "4.5"
}
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MIT License
Copyright (c) Microsoft Corporation.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE
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# Installation
> `npm install --save @types/istanbul-lib-coverage`
# Summary
This package contains type definitions for istanbul-lib-coverage (https://istanbul.js.org).
# Details
Files were exported from https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/istanbul-lib-coverage.
### Additional Details
* Last updated: Tue, 07 Nov 2023 03:09:37 GMT
* Dependencies: none
# Credits
These definitions were written by [Jason Cheatham](https://github.com/jason0x43).
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export interface CoverageSummaryData {
lines: Totals;
statements: Totals;
branches: Totals;
functions: Totals;
}
export class CoverageSummary {
constructor(data: CoverageSummary | CoverageSummaryData);
merge(obj: CoverageSummary): CoverageSummary;
toJSON(): CoverageSummaryData;
isEmpty(): boolean;
data: CoverageSummaryData;
lines: Totals;
statements: Totals;
branches: Totals;
functions: Totals;
}
export interface CoverageMapData {
[key: string]: FileCoverage | FileCoverageData;
}
export class CoverageMap {
constructor(data: CoverageMapData | CoverageMap);
addFileCoverage(pathOrObject: string | FileCoverage | FileCoverageData): void;
files(): string[];
fileCoverageFor(filename: string): FileCoverage;
filter(callback: (key: string) => boolean): void;
getCoverageSummary(): CoverageSummary;
merge(data: CoverageMapData | CoverageMap): void;
toJSON(): CoverageMapData;
data: CoverageMapData;
}
export interface Location {
line: number;
column: number;
}
export interface Range {
start: Location;
end: Location;
}
export interface BranchMapping {
loc: Range;
type: string;
locations: Range[];
line: number;
}
export interface FunctionMapping {
name: string;
decl: Range;
loc: Range;
line: number;
}
export interface FileCoverageData {
path: string;
statementMap: { [key: string]: Range };
fnMap: { [key: string]: FunctionMapping };
branchMap: { [key: string]: BranchMapping };
s: { [key: string]: number };
f: { [key: string]: number };
b: { [key: string]: number[] };
}
export interface Totals {
total: number;
covered: number;
skipped: number;
pct: number;
}
export interface Coverage {
covered: number;
total: number;
coverage: number;
}
export class FileCoverage implements FileCoverageData {
constructor(data: string | FileCoverage | FileCoverageData);
merge(other: FileCoverageData): void;
getBranchCoverageByLine(): { [line: number]: Coverage };
getLineCoverage(): { [line: number]: number };
getUncoveredLines(): number[];
resetHits(): void;
computeBranchTotals(): Totals;
computeSimpleTotals(): Totals;
toSummary(): CoverageSummary;
toJSON(): object;
data: FileCoverageData;
path: string;
statementMap: { [key: string]: Range };
fnMap: { [key: string]: FunctionMapping };
branchMap: { [key: string]: BranchMapping };
s: { [key: string]: number };
f: { [key: string]: number };
b: { [key: string]: number[] };
}
export const classes: {
FileCoverage: FileCoverage;
};
export function createCoverageMap(data?: CoverageMap | CoverageMapData): CoverageMap;
export function createCoverageSummary(obj?: CoverageSummary | CoverageSummaryData): CoverageSummary;
export function createFileCoverage(pathOrObject: string | FileCoverage | FileCoverageData): FileCoverage;
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{
"name": "@types/istanbul-lib-coverage",
"version": "2.0.6",
"description": "TypeScript definitions for istanbul-lib-coverage",
"homepage": "https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/istanbul-lib-coverage",
"license": "MIT",
"contributors": [
{
"name": "Jason Cheatham",
"githubUsername": "jason0x43",
"url": "https://github.com/jason0x43"
}
],
"main": "",
"types": "index.d.ts",
"repository": {
"type": "git",
"url": "https://github.com/DefinitelyTyped/DefinitelyTyped.git",
"directory": "types/istanbul-lib-coverage"
},
"scripts": {},
"dependencies": {},
"typesPublisherContentHash": "36c823c8b3f66dab91254b0f7299de71768ad8836bfbfcaa062409dd86fbbd61",
"typeScriptVersion": "4.5"
}
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MIT License
Copyright (c) Microsoft Corporation.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE
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# Installation
> `npm install --save @types/istanbul-lib-report`
# Summary
This package contains type definitions for istanbul-lib-report (https://istanbul.js.org).
# Details
Files were exported from https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/istanbul-lib-report.
### Additional Details
* Last updated: Tue, 07 Nov 2023 03:09:37 GMT
* Dependencies: [@types/istanbul-lib-coverage](https://npmjs.com/package/@types/istanbul-lib-coverage)
# Credits
These definitions were written by [Jason Cheatham](https://github.com/jason0x43), and [Zacharias Björngren](https://github.com/zache).
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import { CoverageMap, CoverageSummary, FileCoverage } from "istanbul-lib-coverage";
/**
* returns a reporting context for the supplied options
*/
export function createContext(options?: Partial<ContextOptions>): Context;
/**
* returns the default watermarks that would be used when not
* overridden
*/
export function getDefaultWatermarks(): Watermarks;
export class ReportBase {
constructor(options?: Partial<ReportBaseOptions>);
execute(context: Context): void;
}
export interface ReportBaseOptions {
summarizer: Summarizers;
}
export type Summarizers = "flat" | "nested" | "pkg" | "defaultSummarizer";
export interface ContextOptions {
coverageMap: CoverageMap;
defaultSummarizer: Summarizers;
dir: string;
watermarks: Partial<Watermarks>;
sourceFinder(filepath: string): string;
}
export interface Context {
data: any;
dir: string;
sourceFinder(filepath: string): string;
watermarks: Watermarks;
writer: FileWriter;
/**
* returns the coverage class given a coverage
* types and a percentage value.
*/
classForPercent(type: keyof Watermarks, value: number): string;
/**
* returns the source code for the specified file path or throws if
* the source could not be found.
*/
getSource(filepath: string): string;
getTree(summarizer?: Summarizers): Tree;
/**
* returns a full visitor given a partial one.
*/
getVisitor<N extends Node = Node>(visitor: Partial<Visitor<N>>): Visitor<N>;
/**
* returns a FileWriter implementation for reporting use. Also available
* as the `writer` property on the context.
*/
getWriter(): FileWriter;
/**
* returns an XML writer for the supplied content writer
*/
getXmlWriter(contentWriter: ContentWriter): XmlWriter;
}
/**
* Base class for writing content
*/
export class ContentWriter {
/**
* returns the colorized version of a string. Typically,
* content writers that write to files will return the
* same string and ones writing to a tty will wrap it in
* appropriate escape sequences.
*/
colorize(str: string, clazz?: string): string;
/**
* writes a string appended with a newline to the destination
*/
println(str: string): void;
/**
* closes this content writer. Should be called after all writes are complete.
*/
close(): void;
}
/**
* a content writer that writes to a file
*/
export class FileContentWriter extends ContentWriter {
constructor(fileDescriptor: number);
write(str: string): void;
}
/**
* a content writer that writes to the console
*/
export class ConsoleWriter extends ContentWriter {
write(str: string): void;
}
/**
* utility for writing files under a specific directory
*/
export class FileWriter {
constructor(baseDir: string);
static startCapture(): void;
static stopCapture(): void;
static getOutput(): string;
static resetOutput(): void;
/**
* returns a FileWriter that is rooted at the supplied subdirectory
*/
writeForDir(subdir: string): FileWriter;
/**
* copies a file from a source directory to a destination name
*/
copyFile(source: string, dest: string, header?: string): void;
/**
* returns a content writer for writing content to the supplied file.
*/
writeFile(file: string | null): ContentWriter;
}
export interface XmlWriter {
indent(str: string): string;
/**
* writes the opening XML tag with the supplied attributes
*/
openTag(name: string, attrs?: any): void;
/**
* closes an open XML tag.
*/
closeTag(name: string): void;
/**
* writes a tag and its value opening and closing it at the same time
*/
inlineTag(name: string, attrs?: any, content?: string): void;
/**
* closes all open tags and ends the document
*/
closeAll(): void;
}
export type Watermark = [number, number];
export interface Watermarks {
statements: Watermark;
functions: Watermark;
branches: Watermark;
lines: Watermark;
}
export interface Node {
isRoot(): boolean;
visit(visitor: Visitor, state: any): void;
}
export interface ReportNode extends Node {
path: string;
parent: ReportNode | null;
fileCoverage: FileCoverage;
children: ReportNode[];
addChild(child: ReportNode): void;
asRelative(p: string): string;
getQualifiedName(): string;
getRelativeName(): string;
getParent(): Node;
getChildren(): Node[];
isSummary(): boolean;
getFileCoverage(): FileCoverage;
getCoverageSummary(filesOnly: boolean): CoverageSummary;
visit(visitor: Visitor<ReportNode>, state: any): void;
}
export interface Visitor<N extends Node = Node> {
onStart(root: N, state: any): void;
onSummary(root: N, state: any): void;
onDetail(root: N, state: any): void;
onSummaryEnd(root: N, state: any): void;
onEnd(root: N, state: any): void;
}
export interface Tree<N extends Node = Node> {
getRoot(): N;
visit(visitor: Partial<Visitor<N>>, state: any): void;
}
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{
"name": "@types/istanbul-lib-report",
"version": "3.0.3",
"description": "TypeScript definitions for istanbul-lib-report",
"homepage": "https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/istanbul-lib-report",
"license": "MIT",
"contributors": [
{
"name": "Jason Cheatham",
"githubUsername": "jason0x43",
"url": "https://github.com/jason0x43"
},
{
"name": "Zacharias Björngren",
"githubUsername": "zache",
"url": "https://github.com/zache"
}
],
"main": "",
"types": "index.d.ts",
"repository": {
"type": "git",
"url": "https://github.com/DefinitelyTyped/DefinitelyTyped.git",
"directory": "types/istanbul-lib-report"
},
"scripts": {},
"dependencies": {
"@types/istanbul-lib-coverage": "*"
},
"typesPublisherContentHash": "7036cfd1108c02c3ceec9ffab2cbc424c76e2cafd694c550037d808bf66e3946",
"typeScriptVersion": "4.5"
}
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MIT License
Copyright (c) Microsoft Corporation.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE
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# Installation
> `npm install --save @types/istanbul-reports`
# Summary
This package contains type definitions for istanbul-reports (https://github.com/istanbuljs/istanbuljs).
# Details
Files were exported from https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/istanbul-reports.
## [index.d.ts](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/istanbul-reports/index.d.ts)
````ts
import { Node, ReportBase } from "istanbul-lib-report";
export function create<T extends keyof ReportOptions>(name: T, options?: Partial<ReportOptions[T]>): ReportBase;
export interface FileOptions {
file: string;
}
export interface ProjectOptions {
projectRoot: string;
}
export interface ReportOptions {
clover: CloverOptions;
cobertura: CoberturaOptions;
"html-spa": HtmlSpaOptions;
html: HtmlOptions;
json: JsonOptions;
"json-summary": JsonSummaryOptions;
lcov: LcovOptions;
lcovonly: LcovOnlyOptions;
none: never;
teamcity: TeamcityOptions;
text: TextOptions;
"text-lcov": TextLcovOptions;
"text-summary": TextSummaryOptions;
}
export type ReportType = keyof ReportOptions;
export interface CloverOptions extends FileOptions, ProjectOptions {}
export interface CoberturaOptions extends FileOptions, ProjectOptions {}
export interface HtmlSpaOptions extends HtmlOptions {
metricsToShow: Array<"lines" | "branches" | "functions" | "statements">;
}
export interface HtmlOptions {
verbose: boolean;
skipEmpty: boolean;
subdir: string;
linkMapper: LinkMapper;
}
export type JsonOptions = FileOptions;
export type JsonSummaryOptions = FileOptions;
export interface LcovOptions extends FileOptions, ProjectOptions {}
export interface LcovOnlyOptions extends FileOptions, ProjectOptions {}
export interface TeamcityOptions extends FileOptions {
blockName: string;
}
export interface TextOptions extends FileOptions {
maxCols: number;
skipEmpty: boolean;
skipFull: boolean;
}
export type TextLcovOptions = ProjectOptions;
export type TextSummaryOptions = FileOptions;
export interface LinkMapper {
getPath(node: string | Node): string;
relativePath(source: string | Node, target: string | Node): string;
assetPath(node: Node, name: string): string;
}
````
### Additional Details
* Last updated: Tue, 07 Nov 2023 03:09:37 GMT
* Dependencies: [@types/istanbul-lib-report](https://npmjs.com/package/@types/istanbul-lib-report)
# Credits
These definitions were written by [Jason Cheatham](https://github.com/jason0x43), and [Elena Shcherbakova](https://github.com/not-a-doctor).
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import { Node, ReportBase } from "istanbul-lib-report";
export function create<T extends keyof ReportOptions>(name: T, options?: Partial<ReportOptions[T]>): ReportBase;
export interface FileOptions {
file: string;
}
export interface ProjectOptions {
projectRoot: string;
}
export interface ReportOptions {
clover: CloverOptions;
cobertura: CoberturaOptions;
"html-spa": HtmlSpaOptions;
html: HtmlOptions;
json: JsonOptions;
"json-summary": JsonSummaryOptions;
lcov: LcovOptions;
lcovonly: LcovOnlyOptions;
none: never;
teamcity: TeamcityOptions;
text: TextOptions;
"text-lcov": TextLcovOptions;
"text-summary": TextSummaryOptions;
}
export type ReportType = keyof ReportOptions;
export interface CloverOptions extends FileOptions, ProjectOptions {}
export interface CoberturaOptions extends FileOptions, ProjectOptions {}
export interface HtmlSpaOptions extends HtmlOptions {
metricsToShow: Array<"lines" | "branches" | "functions" | "statements">;
}
export interface HtmlOptions {
verbose: boolean;
skipEmpty: boolean;
subdir: string;
linkMapper: LinkMapper;
}
export type JsonOptions = FileOptions;
export type JsonSummaryOptions = FileOptions;
export interface LcovOptions extends FileOptions, ProjectOptions {}
export interface LcovOnlyOptions extends FileOptions, ProjectOptions {}
export interface TeamcityOptions extends FileOptions {
blockName: string;
}
export interface TextOptions extends FileOptions {
maxCols: number;
skipEmpty: boolean;
skipFull: boolean;
}
export type TextLcovOptions = ProjectOptions;
export type TextSummaryOptions = FileOptions;
export interface LinkMapper {
getPath(node: string | Node): string;
relativePath(source: string | Node, target: string | Node): string;
assetPath(node: Node, name: string): string;
}
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{
"name": "@types/istanbul-reports",
"version": "3.0.4",
"description": "TypeScript definitions for istanbul-reports",
"homepage": "https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/istanbul-reports",
"license": "MIT",
"contributors": [
{
"name": "Jason Cheatham",
"githubUsername": "jason0x43",
"url": "https://github.com/jason0x43"
},
{
"name": "Elena Shcherbakova",
"githubUsername": "not-a-doctor",
"url": "https://github.com/not-a-doctor"
}
],
"main": "",
"types": "index.d.ts",
"repository": {
"type": "git",
"url": "https://github.com/DefinitelyTyped/DefinitelyTyped.git",
"directory": "types/istanbul-reports"
},
"scripts": {},
"dependencies": {
"@types/istanbul-lib-report": "*"
},
"typesPublisherContentHash": "27b4219ea922d9218dd987cb99b49d7fc77c568322e7102565050323987fa6db",
"typeScriptVersion": "4.5"
}
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MIT License
Copyright (c) Microsoft Corporation.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE
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# Installation
> `npm install --save @types/json-schema`
# Summary
This package contains type definitions for json-schema (https://github.com/kriszyp/json-schema).
# Details
Files were exported from https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/json-schema.
### Additional Details
* Last updated: Tue, 07 Nov 2023 03:09:37 GMT
* Dependencies: none
# Credits
These definitions were written by [Boris Cherny](https://github.com/bcherny), [Lucian Buzzo](https://github.com/lucianbuzzo), [Roland Groza](https://github.com/rolandjitsu), and [Jason Kwok](https://github.com/JasonHK).
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// ==================================================================================================
// JSON Schema Draft 04
// ==================================================================================================
/**
* @see https://tools.ietf.org/html/draft-zyp-json-schema-03#section-5.1
*/
export type JSONSchema4TypeName =
| "string" //
| "number"
| "integer"
| "boolean"
| "object"
| "array"
| "null"
| "any";
/**
* @see https://tools.ietf.org/html/draft-zyp-json-schema-04#section-3.5
*/
export type JSONSchema4Type =
| string //
| number
| boolean
| JSONSchema4Object
| JSONSchema4Array
| null;
// Workaround for infinite type recursion
export interface JSONSchema4Object {
[key: string]: JSONSchema4Type;
}
// Workaround for infinite type recursion
// https://github.com/Microsoft/TypeScript/issues/3496#issuecomment-128553540
export interface JSONSchema4Array extends Array<JSONSchema4Type> {}
/**
* Meta schema
*
* Recommended values:
* - 'http://json-schema.org/schema#'
* - 'http://json-schema.org/hyper-schema#'
* - 'http://json-schema.org/draft-04/schema#'
* - 'http://json-schema.org/draft-04/hyper-schema#'
* - 'http://json-schema.org/draft-03/schema#'
* - 'http://json-schema.org/draft-03/hyper-schema#'
*
* @see https://tools.ietf.org/html/draft-handrews-json-schema-validation-01#section-5
*/
export type JSONSchema4Version = string;
/**
* JSON Schema V4
* @see https://tools.ietf.org/html/draft-zyp-json-schema-04
*/
export interface JSONSchema4 {
id?: string | undefined;
$ref?: string | undefined;
$schema?: JSONSchema4Version | undefined;
/**
* This attribute is a string that provides a short description of the
* instance property.
*
* @see https://tools.ietf.org/html/draft-zyp-json-schema-03#section-5.21
*/
title?: string | undefined;
/**
* This attribute is a string that provides a full description of the of
* purpose the instance property.
*
* @see https://tools.ietf.org/html/draft-zyp-json-schema-03#section-5.22
*/
description?: string | undefined;
default?: JSONSchema4Type | undefined;
multipleOf?: number | undefined;
maximum?: number | undefined;
exclusiveMaximum?: boolean | undefined;
minimum?: number | undefined;
exclusiveMinimum?: boolean | undefined;
maxLength?: number | undefined;
minLength?: number | undefined;
pattern?: string | undefined;
/**
* May only be defined when "items" is defined, and is a tuple of JSONSchemas.
*
* This provides a definition for additional items in an array instance
* when tuple definitions of the items is provided. This can be false
* to indicate additional items in the array are not allowed, or it can
* be a schema that defines the schema of the additional items.
*
* @see https://tools.ietf.org/html/draft-zyp-json-schema-03#section-5.6
*/
additionalItems?: boolean | JSONSchema4 | undefined;
/**
* This attribute defines the allowed items in an instance array, and
* MUST be a schema or an array of schemas. The default value is an
* empty schema which allows any value for items in the instance array.
*
* When this attribute value is a schema and the instance value is an
* array, then all the items in the array MUST be valid according to the
* schema.
*
* When this attribute value is an array of schemas and the instance
* value is an array, each position in the instance array MUST conform
* to the schema in the corresponding position for this array. This
* called tuple typing. When tuple typing is used, additional items are
* allowed, disallowed, or constrained by the "additionalItems"
* (Section 5.6) attribute using the same rules as
* "additionalProperties" (Section 5.4) for objects.
*
* @see https://tools.ietf.org/html/draft-zyp-json-schema-03#section-5.5
*/
items?: JSONSchema4 | JSONSchema4[] | undefined;
maxItems?: number | undefined;
minItems?: number | undefined;
uniqueItems?: boolean | undefined;
maxProperties?: number | undefined;
minProperties?: number | undefined;
/**
* This attribute indicates if the instance must have a value, and not
* be undefined. This is false by default, making the instance
* optional.
*
* @see https://tools.ietf.org/html/draft-zyp-json-schema-03#section-5.7
*/
required?: boolean | string[] | undefined;
/**
* This attribute defines a schema for all properties that are not
* explicitly defined in an object type definition. If specified, the
* value MUST be a schema or a boolean. If false is provided, no
* additional properties are allowed beyond the properties defined in
* the schema. The default value is an empty schema which allows any
* value for additional properties.
*
* @see https://tools.ietf.org/html/draft-zyp-json-schema-03#section-5.4
*/
additionalProperties?: boolean | JSONSchema4 | undefined;
definitions?: {
[k: string]: JSONSchema4;
} | undefined;
/**
* This attribute is an object with property definitions that define the
* valid values of instance object property values. When the instance
* value is an object, the property values of the instance object MUST
* conform to the property definitions in this object. In this object,
* each property definition's value MUST be a schema, and the property's
* name MUST be the name of the instance property that it defines. The
* instance property value MUST be valid according to the schema from
* the property definition. Properties are considered unordered, the
* order of the instance properties MAY be in any order.
*
* @see https://tools.ietf.org/html/draft-zyp-json-schema-03#section-5.2
*/
properties?: {
[k: string]: JSONSchema4;
} | undefined;
/**
* This attribute is an object that defines the schema for a set of
* property names of an object instance. The name of each property of
* this attribute's object is a regular expression pattern in the ECMA
* 262/Perl 5 format, while the value is a schema. If the pattern
* matches the name of a property on the instance object, the value of
* the instance's property MUST be valid against the pattern name's
* schema value.
*
* @see https://tools.ietf.org/html/draft-zyp-json-schema-03#section-5.3
*/
patternProperties?: {
[k: string]: JSONSchema4;
} | undefined;
dependencies?: {
[k: string]: JSONSchema4 | string[];
} | undefined;
/**
* This provides an enumeration of all possible values that are valid
* for the instance property. This MUST be an array, and each item in
* the array represents a possible value for the instance value. If
* this attribute is defined, the instance value MUST be one of the
* values in the array in order for the schema to be valid.
*
* @see https://tools.ietf.org/html/draft-zyp-json-schema-03#section-5.19
*/
enum?: JSONSchema4Type[] | undefined;
/**
* A single type, or a union of simple types
*/
type?: JSONSchema4TypeName | JSONSchema4TypeName[] | undefined;
allOf?: JSONSchema4[] | undefined;
anyOf?: JSONSchema4[] | undefined;
oneOf?: JSONSchema4[] | undefined;
not?: JSONSchema4 | undefined;
/**
* The value of this property MUST be another schema which will provide
* a base schema which the current schema will inherit from. The
* inheritance rules are such that any instance that is valid according
* to the current schema MUST be valid according to the referenced
* schema. This MAY also be an array, in which case, the instance MUST
* be valid for all the schemas in the array. A schema that extends
* another schema MAY define additional attributes, constrain existing
* attributes, or add other constraints.
*
* Conceptually, the behavior of extends can be seen as validating an
* instance against all constraints in the extending schema as well as
* the extended schema(s).
*
* @see https://tools.ietf.org/html/draft-zyp-json-schema-03#section-5.26
*/
extends?: string | string[] | undefined;
/**
* @see https://tools.ietf.org/html/draft-zyp-json-schema-04#section-5.6
*/
[k: string]: any;
format?: string | undefined;
}
// ==================================================================================================
// JSON Schema Draft 06
// ==================================================================================================
export type JSONSchema6TypeName =
| "string" //
| "number"
| "integer"
| "boolean"
| "object"
| "array"
| "null"
| "any";
export type JSONSchema6Type =
| string //
| number
| boolean
| JSONSchema6Object
| JSONSchema6Array
| null;
// Workaround for infinite type recursion
export interface JSONSchema6Object {
[key: string]: JSONSchema6Type;
}
// Workaround for infinite type recursion
// https://github.com/Microsoft/TypeScript/issues/3496#issuecomment-128553540
export interface JSONSchema6Array extends Array<JSONSchema6Type> {}
/**
* Meta schema
*
* Recommended values:
* - 'http://json-schema.org/schema#'
* - 'http://json-schema.org/hyper-schema#'
* - 'http://json-schema.org/draft-06/schema#'
* - 'http://json-schema.org/draft-06/hyper-schema#'
*
* @see https://tools.ietf.org/html/draft-handrews-json-schema-validation-01#section-5
*/
export type JSONSchema6Version = string;
/**
* JSON Schema V6
* @see https://tools.ietf.org/html/draft-wright-json-schema-validation-01
*/
export type JSONSchema6Definition = JSONSchema6 | boolean;
export interface JSONSchema6 {
$id?: string | undefined;
$ref?: string | undefined;
$schema?: JSONSchema6Version | undefined;
/**
* Must be strictly greater than 0.
* A numeric instance is valid only if division by this keyword's value results in an integer.
* @see https://tools.ietf.org/html/draft-wright-json-schema-validation-01#section-6.1
*/
multipleOf?: number | undefined;
/**
* Representing an inclusive upper limit for a numeric instance.
* This keyword validates only if the instance is less than or exactly equal to "maximum".
* @see https://tools.ietf.org/html/draft-wright-json-schema-validation-01#section-6.2
*/
maximum?: number | undefined;
/**
* Representing an exclusive upper limit for a numeric instance.
* This keyword validates only if the instance is strictly less than (not equal to) to "exclusiveMaximum".
* @see https://tools.ietf.org/html/draft-wright-json-schema-validation-01#section-6.3
*/
exclusiveMaximum?: number | undefined;
/**
* Representing an inclusive lower limit for a numeric instance.
* This keyword validates only if the instance is greater than or exactly equal to "minimum".
* @see https://tools.ietf.org/html/draft-wright-json-schema-validation-01#section-6.4
*/
minimum?: number | undefined;
/**
* Representing an exclusive lower limit for a numeric instance.
* This keyword validates only if the instance is strictly greater than (not equal to) to "exclusiveMinimum".
* @see https://tools.ietf.org/html/draft-wright-json-schema-validation-01#section-6.5
*/
exclusiveMinimum?: number | undefined;
/**
* Must be a non-negative integer.
* A string instance is valid against this keyword if its length is less than, or equal to, the value of this keyword.
* @see https://tools.ietf.org/html/draft-wright-json-schema-validation-01#section-6.6
*/
maxLength?: number | undefined;
/**
* Must be a non-negative integer.
* A string instance is valid against this keyword if its length is greater than, or equal to, the value of this keyword.
* Omitting this keyword has the same behavior as a value of 0.
* @see https://tools.ietf.org/html/draft-wright-json-schema-validation-01#section-6.7
*/
minLength?: number | undefined;
/**
* Should be a valid regular expression, according to the ECMA 262 regular expression dialect.
* @see https://tools.ietf.org/html/draft-wright-json-schema-validation-01#section-6.8
*/
pattern?: string | undefined;
/**
* This keyword determines how child instances validate for arrays, and does not directly validate the immediate instance itself.
* Omitting this keyword has the same behavior as an empty schema.
* @see https://tools.ietf.org/html/draft-wright-json-schema-validation-01#section-6.9
*/
items?: JSONSchema6Definition | JSONSchema6Definition[] | undefined;
/**
* This keyword determines how child instances validate for arrays, and does not directly validate the immediate instance itself.
* If "items" is an array of schemas, validation succeeds if every instance element
* at a position greater than the size of "items" validates against "additionalItems".
* Otherwise, "additionalItems" MUST be ignored, as the "items" schema
* (possibly the default value of an empty schema) is applied to all elements.
* Omitting this keyword has the same behavior as an empty schema.
* @see https://tools.ietf.org/html/draft-wright-json-schema-validation-01#section-6.10
*/
additionalItems?: JSONSchema6Definition | undefined;
/**
* Must be a non-negative integer.
* An array instance is valid against "maxItems" if its size is less than, or equal to, the value of this keyword.
* @see https://tools.ietf.org/html/draft-wright-json-schema-validation-01#section-6.11
*/
maxItems?: number | undefined;
/**
* Must be a non-negative integer.
* An array instance is valid against "maxItems" if its size is greater than, or equal to, the value of this keyword.
* Omitting this keyword has the same behavior as a value of 0.
* @see https://tools.ietf.org/html/draft-wright-json-schema-validation-01#section-6.12
*/
minItems?: number | undefined;
/**
* If this keyword has boolean value false, the instance validates successfully.
* If it has boolean value true, the instance validates successfully if all of its elements are unique.
* Omitting this keyword has the same behavior as a value of false.
* @see https://tools.ietf.org/html/draft-wright-json-schema-validation-01#section-6.13
*/
uniqueItems?: boolean | undefined;
/**
* An array instance is valid against "contains" if at least one of its elements is valid against the given schema.
* @see https://tools.ietf.org/html/draft-wright-json-schema-validation-01#section-6.14
*/
contains?: JSONSchema6Definition | undefined;
/**
* Must be a non-negative integer.
* An object instance is valid against "maxProperties" if its number of properties is less than, or equal to, the value of this keyword.
* @see https://tools.ietf.org/html/draft-wright-json-schema-validation-01#section-6.15
*/
maxProperties?: number | undefined;
/**
* Must be a non-negative integer.
* An object instance is valid against "maxProperties" if its number of properties is greater than,
* or equal to, the value of this keyword.
* Omitting this keyword has the same behavior as a value of 0.
* @see https://tools.ietf.org/html/draft-wright-json-schema-validation-01#section-6.16
*/
minProperties?: number | undefined;
/**
* Elements of this array must be unique.
* An object instance is valid against this keyword if every item in the array is the name of a property in the instance.
* Omitting this keyword has the same behavior as an empty array.
*
* @see https://tools.ietf.org/html/draft-wright-json-schema-validation-01#section-6.17
*/
required?: string[] | undefined;
/**
* This keyword determines how child instances validate for objects, and does not directly validate the immediate instance itself.
* Validation succeeds if, for each name that appears in both the instance and as a name within this keyword's value,
* the child instance for that name successfully validates against the corresponding schema.
* Omitting this keyword has the same behavior as an empty object.
* @see https://tools.ietf.org/html/draft-wright-json-schema-validation-01#section-6.18
*/
properties?: {
[k: string]: JSONSchema6Definition;
} | undefined;
/**
* This attribute is an object that defines the schema for a set of property names of an object instance.
* The name of each property of this attribute's object is a regular expression pattern in the ECMA 262, while the value is a schema.
* If the pattern matches the name of a property on the instance object, the value of the instance's property
* MUST be valid against the pattern name's schema value.
* Omitting this keyword has the same behavior as an empty object.
* @see https://tools.ietf.org/html/draft-wright-json-schema-validation-01#section-6.19
*/
patternProperties?: {
[k: string]: JSONSchema6Definition;
} | undefined;
/**
* This attribute defines a schema for all properties that are not explicitly defined in an object type definition.
* If specified, the value MUST be a schema or a boolean.
* If false is provided, no additional properties are allowed beyond the properties defined in the schema.
* The default value is an empty schema which allows any value for additional properties.
* @see https://tools.ietf.org/html/draft-wright-json-schema-validation-01#section-6.20
*/
additionalProperties?: JSONSchema6Definition | undefined;
/**
* This keyword specifies rules that are evaluated if the instance is an object and contains a certain property.
* Each property specifies a dependency.
* If the dependency value is an array, each element in the array must be unique.
* Omitting this keyword has the same behavior as an empty object.
* @see https://tools.ietf.org/html/draft-wright-json-schema-validation-01#section-6.21
*/
dependencies?: {
[k: string]: JSONSchema6Definition | string[];
} | undefined;
/**
* Takes a schema which validates the names of all properties rather than their values.
* Note the property name that the schema is testing will always be a string.
* Omitting this keyword has the same behavior as an empty schema.
* @see https://tools.ietf.org/html/draft-wright-json-schema-validation-01#section-6.22
*/
propertyNames?: JSONSchema6Definition | undefined;
/**
* This provides an enumeration of all possible values that are valid
* for the instance property. This MUST be an array, and each item in
* the array represents a possible value for the instance value. If
* this attribute is defined, the instance value MUST be one of the
* values in the array in order for the schema to be valid.
*
* @see https://tools.ietf.org/html/draft-wright-json-schema-validation-01#section-6.23
*/
enum?: JSONSchema6Type[] | undefined;
/**
* More readable form of a one-element "enum"
* @see https://tools.ietf.org/html/draft-wright-json-schema-validation-01#section-6.24
*/
const?: JSONSchema6Type | undefined;
/**
* A single type, or a union of simple types
* @see https://tools.ietf.org/html/draft-wright-json-schema-validation-01#section-6.25
*/
type?: JSONSchema6TypeName | JSONSchema6TypeName[] | undefined;
/**
* @see https://tools.ietf.org/html/draft-wright-json-schema-validation-01#section-6.26
*/
allOf?: JSONSchema6Definition[] | undefined;
/**
* @see https://tools.ietf.org/html/draft-wright-json-schema-validation-01#section-6.27
*/
anyOf?: JSONSchema6Definition[] | undefined;
/**
* @see https://tools.ietf.org/html/draft-wright-json-schema-validation-01#section-6.28
*/
oneOf?: JSONSchema6Definition[] | undefined;
/**
* @see https://tools.ietf.org/html/draft-wright-json-schema-validation-01#section-6.29
*/
not?: JSONSchema6Definition | undefined;
/**
* @see https://tools.ietf.org/html/draft-wright-json-schema-validation-01#section-7.1
*/
definitions?: {
[k: string]: JSONSchema6Definition;
} | undefined;
/**
* This attribute is a string that provides a short description of the instance property.
*
* @see https://tools.ietf.org/html/draft-wright-json-schema-validation-01#section-7.2
*/
title?: string | undefined;
/**
* This attribute is a string that provides a full description of the of purpose the instance property.
*
* @see https://tools.ietf.org/html/draft-wright-json-schema-validation-01#section-7.2
*/
description?: string | undefined;
/**
* This keyword can be used to supply a default JSON value associated with a particular schema.
* It is RECOMMENDED that a default value be valid against the associated schema.
* @see https://tools.ietf.org/html/draft-wright-json-schema-validation-01#section-7.3
*/
default?: JSONSchema6Type | undefined;
/**
* Array of examples with no validation effect the value of "default" is usable as an example without repeating it under this keyword
* @see https://tools.ietf.org/html/draft-wright-json-schema-validation-01#section-7.4
*/
examples?: JSONSchema6Type[] | undefined;
/**
* @see https://tools.ietf.org/html/draft-wright-json-schema-validation-01#section-8
*/
format?: string | undefined;
}
// ==================================================================================================
// JSON Schema Draft 07
// ==================================================================================================
// https://tools.ietf.org/html/draft-handrews-json-schema-validation-01
// --------------------------------------------------------------------------------------------------
/**
* Primitive type
* @see https://tools.ietf.org/html/draft-handrews-json-schema-validation-01#section-6.1.1
*/
export type JSONSchema7TypeName =
| "string" //
| "number"
| "integer"
| "boolean"
| "object"
| "array"
| "null";
/**
* Primitive type
* @see https://tools.ietf.org/html/draft-handrews-json-schema-validation-01#section-6.1.1
*/
export type JSONSchema7Type =
| string //
| number
| boolean
| JSONSchema7Object
| JSONSchema7Array
| null;
// Workaround for infinite type recursion
export interface JSONSchema7Object {
[key: string]: JSONSchema7Type;
}
// Workaround for infinite type recursion
// https://github.com/Microsoft/TypeScript/issues/3496#issuecomment-128553540
export interface JSONSchema7Array extends Array<JSONSchema7Type> {}
/**
* Meta schema
*
* Recommended values:
* - 'http://json-schema.org/schema#'
* - 'http://json-schema.org/hyper-schema#'
* - 'http://json-schema.org/draft-07/schema#'
* - 'http://json-schema.org/draft-07/hyper-schema#'
*
* @see https://tools.ietf.org/html/draft-handrews-json-schema-validation-01#section-5
*/
export type JSONSchema7Version = string;
/**
* JSON Schema v7
* @see https://tools.ietf.org/html/draft-handrews-json-schema-validation-01
*/
export type JSONSchema7Definition = JSONSchema7 | boolean;
export interface JSONSchema7 {
$id?: string | undefined;
$ref?: string | undefined;
$schema?: JSONSchema7Version | undefined;
$comment?: string | undefined;
/**
* @see https://datatracker.ietf.org/doc/html/draft-bhutton-json-schema-00#section-8.2.4
* @see https://datatracker.ietf.org/doc/html/draft-bhutton-json-schema-validation-00#appendix-A
*/
$defs?: {
[key: string]: JSONSchema7Definition;
} | undefined;
/**
* @see https://tools.ietf.org/html/draft-handrews-json-schema-validation-01#section-6.1
*/
type?: JSONSchema7TypeName | JSONSchema7TypeName[] | undefined;
enum?: JSONSchema7Type[] | undefined;
const?: JSONSchema7Type | undefined;
/**
* @see https://tools.ietf.org/html/draft-handrews-json-schema-validation-01#section-6.2
*/
multipleOf?: number | undefined;
maximum?: number | undefined;
exclusiveMaximum?: number | undefined;
minimum?: number | undefined;
exclusiveMinimum?: number | undefined;
/**
* @see https://tools.ietf.org/html/draft-handrews-json-schema-validation-01#section-6.3
*/
maxLength?: number | undefined;
minLength?: number | undefined;
pattern?: string | undefined;
/**
* @see https://tools.ietf.org/html/draft-handrews-json-schema-validation-01#section-6.4
*/
items?: JSONSchema7Definition | JSONSchema7Definition[] | undefined;
additionalItems?: JSONSchema7Definition | undefined;
maxItems?: number | undefined;
minItems?: number | undefined;
uniqueItems?: boolean | undefined;
contains?: JSONSchema7Definition | undefined;
/**
* @see https://tools.ietf.org/html/draft-handrews-json-schema-validation-01#section-6.5
*/
maxProperties?: number | undefined;
minProperties?: number | undefined;
required?: string[] | undefined;
properties?: {
[key: string]: JSONSchema7Definition;
} | undefined;
patternProperties?: {
[key: string]: JSONSchema7Definition;
} | undefined;
additionalProperties?: JSONSchema7Definition | undefined;
dependencies?: {
[key: string]: JSONSchema7Definition | string[];
} | undefined;
propertyNames?: JSONSchema7Definition | undefined;
/**
* @see https://tools.ietf.org/html/draft-handrews-json-schema-validation-01#section-6.6
*/
if?: JSONSchema7Definition | undefined;
then?: JSONSchema7Definition | undefined;
else?: JSONSchema7Definition | undefined;
/**
* @see https://tools.ietf.org/html/draft-handrews-json-schema-validation-01#section-6.7
*/
allOf?: JSONSchema7Definition[] | undefined;
anyOf?: JSONSchema7Definition[] | undefined;
oneOf?: JSONSchema7Definition[] | undefined;
not?: JSONSchema7Definition | undefined;
/**
* @see https://tools.ietf.org/html/draft-handrews-json-schema-validation-01#section-7
*/
format?: string | undefined;
/**
* @see https://tools.ietf.org/html/draft-handrews-json-schema-validation-01#section-8
*/
contentMediaType?: string | undefined;
contentEncoding?: string | undefined;
/**
* @see https://tools.ietf.org/html/draft-handrews-json-schema-validation-01#section-9
*/
definitions?: {
[key: string]: JSONSchema7Definition;
} | undefined;
/**
* @see https://tools.ietf.org/html/draft-handrews-json-schema-validation-01#section-10
*/
title?: string | undefined;
description?: string | undefined;
default?: JSONSchema7Type | undefined;
readOnly?: boolean | undefined;
writeOnly?: boolean | undefined;
examples?: JSONSchema7Type | undefined;
}
export interface ValidationResult {
valid: boolean;
errors: ValidationError[];
}
export interface ValidationError {
property: string;
message: string;
}
/**
* To use the validator call JSONSchema.validate with an instance object and an optional schema object.
* If a schema is provided, it will be used to validate. If the instance object refers to a schema (self-validating),
* that schema will be used to validate and the schema parameter is not necessary (if both exist,
* both validations will occur).
*/
export function validate(instance: {}, schema: JSONSchema4 | JSONSchema6 | JSONSchema7): ValidationResult;
/**
* The checkPropertyChange method will check to see if an value can legally be in property with the given schema
* This is slightly different than the validate method in that it will fail if the schema is readonly and it will
* not check for self-validation, it is assumed that the passed in value is already internally valid.
*/
export function checkPropertyChange(
value: any,
schema: JSONSchema4 | JSONSchema6 | JSONSchema7,
property: string,
): ValidationResult;
/**
* This checks to ensure that the result is valid and will throw an appropriate error message if it is not.
*/
export function mustBeValid(result: ValidationResult): void;
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{
"name": "@types/json-schema",
"version": "7.0.15",
"description": "TypeScript definitions for json-schema",
"homepage": "https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/json-schema",
"license": "MIT",
"contributors": [
{
"name": "Boris Cherny",
"githubUsername": "bcherny",
"url": "https://github.com/bcherny"
},
{
"name": "Lucian Buzzo",
"githubUsername": "lucianbuzzo",
"url": "https://github.com/lucianbuzzo"
},
{
"name": "Roland Groza",
"githubUsername": "rolandjitsu",
"url": "https://github.com/rolandjitsu"
},
{
"name": "Jason Kwok",
"githubUsername": "JasonHK",
"url": "https://github.com/JasonHK"
}
],
"main": "",
"types": "index.d.ts",
"repository": {
"type": "git",
"url": "https://github.com/DefinitelyTyped/DefinitelyTyped.git",
"directory": "types/json-schema"
},
"scripts": {},
"dependencies": {},
"typesPublisherContentHash": "79984fd70cd25c3f7d72b84368778c763c89728ea0073832d745d4691b705257",
"typeScriptVersion": "4.5"
}
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MIT License
Copyright (c) Microsoft Corporation.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE
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# Installation
> `npm install --save @types/node`
# Summary
This package contains type definitions for node (https://nodejs.org/).
# Details
Files were exported from https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/node.
### Additional Details
* Last updated: Wed, 11 Dec 2024 09:35:14 GMT
* Dependencies: [undici-types](https://npmjs.com/package/undici-types)
# Credits
These definitions were written by [Microsoft TypeScript](https://github.com/Microsoft), [Alberto Schiabel](https://github.com/jkomyno), [Alvis HT Tang](https://github.com/alvis), [Andrew Makarov](https://github.com/r3nya), [Benjamin Toueg](https://github.com/btoueg), [Chigozirim C.](https://github.com/smac89), [David Junger](https://github.com/touffy), [Deividas Bakanas](https://github.com/DeividasBakanas), [Eugene Y. Q. Shen](https://github.com/eyqs), [Hannes Magnusson](https://github.com/Hannes-Magnusson-CK), [Huw](https://github.com/hoo29), [Kelvin Jin](https://github.com/kjin), [Klaus Meinhardt](https://github.com/ajafff), [Lishude](https://github.com/islishude), [Mariusz Wiktorczyk](https://github.com/mwiktorczyk), [Mohsen Azimi](https://github.com/mohsen1), [Nikita Galkin](https://github.com/galkin), [Parambir Singh](https://github.com/parambirs), [Sebastian Silbermann](https://github.com/eps1lon), [Thomas den Hollander](https://github.com/ThomasdenH), [Wilco Bakker](https://github.com/WilcoBakker), [wwwy3y3](https://github.com/wwwy3y3), [Samuel Ainsworth](https://github.com/samuela), [Kyle Uehlein](https://github.com/kuehlein), [Thanik Bhongbhibhat](https://github.com/bhongy), [Marcin Kopacz](https://github.com/chyzwar), [Trivikram Kamat](https://github.com/trivikr), [Junxiao Shi](https://github.com/yoursunny), [Ilia Baryshnikov](https://github.com/qwelias), [ExE Boss](https://github.com/ExE-Boss), [Piotr Błażejewicz](https://github.com/peterblazejewicz), [Anna Henningsen](https://github.com/addaleax), [Victor Perin](https://github.com/victorperin), [NodeJS Contributors](https://github.com/NodeJS), [Linus Unnebäck](https://github.com/LinusU), [wafuwafu13](https://github.com/wafuwafu13), [Matteo Collina](https://github.com/mcollina), and [Dmitry Semigradsky](https://github.com/Semigradsky).
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declare module "assert/strict" {
import { strict } from "node:assert";
export = strict;
}
declare module "node:assert/strict" {
import { strict } from "node:assert";
export = strict;
}
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/**
* We strongly discourage the use of the `async_hooks` API.
* Other APIs that can cover most of its use cases include:
*
* * [`AsyncLocalStorage`](https://nodejs.org/docs/latest-v22.x/api/async_context.html#class-asynclocalstorage) tracks async context
* * [`process.getActiveResourcesInfo()`](https://nodejs.org/docs/latest-v22.x/api/process.html#processgetactiveresourcesinfo) tracks active resources
*
* The `node:async_hooks` module provides an API to track asynchronous resources.
* It can be accessed using:
*
* ```js
* import async_hooks from 'node:async_hooks';
* ```
* @experimental
* @see [source](https://github.com/nodejs/node/blob/v22.x/lib/async_hooks.js)
*/
declare module "async_hooks" {
/**
* ```js
* import { executionAsyncId } from 'node:async_hooks';
* import fs from 'node:fs';
*
* console.log(executionAsyncId()); // 1 - bootstrap
* const path = '.';
* fs.open(path, 'r', (err, fd) => {
* console.log(executionAsyncId()); // 6 - open()
* });
* ```
*
* The ID returned from `executionAsyncId()` is related to execution timing, not
* causality (which is covered by `triggerAsyncId()`):
*
* ```js
* const server = net.createServer((conn) => {
* // Returns the ID of the server, not of the new connection, because the
* // callback runs in the execution scope of the server's MakeCallback().
* async_hooks.executionAsyncId();
*
* }).listen(port, () => {
* // Returns the ID of a TickObject (process.nextTick()) because all
* // callbacks passed to .listen() are wrapped in a nextTick().
* async_hooks.executionAsyncId();
* });
* ```
*
* Promise contexts may not get precise `executionAsyncIds` by default.
* See the section on [promise execution tracking](https://nodejs.org/docs/latest-v22.x/api/async_hooks.html#promise-execution-tracking).
* @since v8.1.0
* @return The `asyncId` of the current execution context. Useful to track when something calls.
*/
function executionAsyncId(): number;
/**
* Resource objects returned by `executionAsyncResource()` are most often internal
* Node.js handle objects with undocumented APIs. Using any functions or properties
* on the object is likely to crash your application and should be avoided.
*
* Using `executionAsyncResource()` in the top-level execution context will
* return an empty object as there is no handle or request object to use,
* but having an object representing the top-level can be helpful.
*
* ```js
* import { open } from 'node:fs';
* import { executionAsyncId, executionAsyncResource } from 'node:async_hooks';
*
* console.log(executionAsyncId(), executionAsyncResource()); // 1 {}
* open(new URL(import.meta.url), 'r', (err, fd) => {
* console.log(executionAsyncId(), executionAsyncResource()); // 7 FSReqWrap
* });
* ```
*
* This can be used to implement continuation local storage without the
* use of a tracking `Map` to store the metadata:
*
* ```js
* import { createServer } from 'node:http';
* import {
* executionAsyncId,
* executionAsyncResource,
* createHook,
* } from 'node:async_hooks';
* const sym = Symbol('state'); // Private symbol to avoid pollution
*
* createHook({
* init(asyncId, type, triggerAsyncId, resource) {
* const cr = executionAsyncResource();
* if (cr) {
* resource[sym] = cr[sym];
* }
* },
* }).enable();
*
* const server = createServer((req, res) => {
* executionAsyncResource()[sym] = { state: req.url };
* setTimeout(function() {
* res.end(JSON.stringify(executionAsyncResource()[sym]));
* }, 100);
* }).listen(3000);
* ```
* @since v13.9.0, v12.17.0
* @return The resource representing the current execution. Useful to store data within the resource.
*/
function executionAsyncResource(): object;
/**
* ```js
* const server = net.createServer((conn) => {
* // The resource that caused (or triggered) this callback to be called
* // was that of the new connection. Thus the return value of triggerAsyncId()
* // is the asyncId of "conn".
* async_hooks.triggerAsyncId();
*
* }).listen(port, () => {
* // Even though all callbacks passed to .listen() are wrapped in a nextTick()
* // the callback itself exists because the call to the server's .listen()
* // was made. So the return value would be the ID of the server.
* async_hooks.triggerAsyncId();
* });
* ```
*
* Promise contexts may not get valid `triggerAsyncId`s by default. See
* the section on [promise execution tracking](https://nodejs.org/docs/latest-v22.x/api/async_hooks.html#promise-execution-tracking).
* @return The ID of the resource responsible for calling the callback that is currently being executed.
*/
function triggerAsyncId(): number;
interface HookCallbacks {
/**
* Called when a class is constructed that has the possibility to emit an asynchronous event.
* @param asyncId A unique ID for the async resource
* @param type The type of the async resource
* @param triggerAsyncId The unique ID of the async resource in whose execution context this async resource was created
* @param resource Reference to the resource representing the async operation, needs to be released during destroy
*/
init?(asyncId: number, type: string, triggerAsyncId: number, resource: object): void;
/**
* When an asynchronous operation is initiated or completes a callback is called to notify the user.
* The before callback is called just before said callback is executed.
* @param asyncId the unique identifier assigned to the resource about to execute the callback.
*/
before?(asyncId: number): void;
/**
* Called immediately after the callback specified in `before` is completed.
*
* If an uncaught exception occurs during execution of the callback, then `after` will run after the `'uncaughtException'` event is emitted or a `domain`'s handler runs.
* @param asyncId the unique identifier assigned to the resource which has executed the callback.
*/
after?(asyncId: number): void;
/**
* Called when a promise has resolve() called. This may not be in the same execution id
* as the promise itself.
* @param asyncId the unique id for the promise that was resolve()d.
*/
promiseResolve?(asyncId: number): void;
/**
* Called after the resource corresponding to asyncId is destroyed
* @param asyncId a unique ID for the async resource
*/
destroy?(asyncId: number): void;
}
interface AsyncHook {
/**
* Enable the callbacks for a given AsyncHook instance. If no callbacks are provided enabling is a noop.
*/
enable(): this;
/**
* Disable the callbacks for a given AsyncHook instance from the global pool of AsyncHook callbacks to be executed. Once a hook has been disabled it will not be called again until enabled.
*/
disable(): this;
}
/**
* Registers functions to be called for different lifetime events of each async
* operation.
*
* The callbacks `init()`/`before()`/`after()`/`destroy()` are called for the
* respective asynchronous event during a resource's lifetime.
*
* All callbacks are optional. For example, if only resource cleanup needs to
* be tracked, then only the `destroy` callback needs to be passed. The
* specifics of all functions that can be passed to `callbacks` is in the `Hook Callbacks` section.
*
* ```js
* import { createHook } from 'node:async_hooks';
*
* const asyncHook = createHook({
* init(asyncId, type, triggerAsyncId, resource) { },
* destroy(asyncId) { },
* });
* ```
*
* The callbacks will be inherited via the prototype chain:
*
* ```js
* class MyAsyncCallbacks {
* init(asyncId, type, triggerAsyncId, resource) { }
* destroy(asyncId) {}
* }
*
* class MyAddedCallbacks extends MyAsyncCallbacks {
* before(asyncId) { }
* after(asyncId) { }
* }
*
* const asyncHook = async_hooks.createHook(new MyAddedCallbacks());
* ```
*
* Because promises are asynchronous resources whose lifecycle is tracked
* via the async hooks mechanism, the `init()`, `before()`, `after()`, and`destroy()` callbacks _must not_ be async functions that return promises.
* @since v8.1.0
* @param callbacks The `Hook Callbacks` to register
* @return Instance used for disabling and enabling hooks
*/
function createHook(callbacks: HookCallbacks): AsyncHook;
interface AsyncResourceOptions {
/**
* The ID of the execution context that created this async event.
* @default executionAsyncId()
*/
triggerAsyncId?: number | undefined;
/**
* Disables automatic `emitDestroy` when the object is garbage collected.
* This usually does not need to be set (even if `emitDestroy` is called
* manually), unless the resource's `asyncId` is retrieved and the
* sensitive API's `emitDestroy` is called with it.
* @default false
*/
requireManualDestroy?: boolean | undefined;
}
/**
* The class `AsyncResource` is designed to be extended by the embedder's async
* resources. Using this, users can easily trigger the lifetime events of their
* own resources.
*
* The `init` hook will trigger when an `AsyncResource` is instantiated.
*
* The following is an overview of the `AsyncResource` API.
*
* ```js
* import { AsyncResource, executionAsyncId } from 'node:async_hooks';
*
* // AsyncResource() is meant to be extended. Instantiating a
* // new AsyncResource() also triggers init. If triggerAsyncId is omitted then
* // async_hook.executionAsyncId() is used.
* const asyncResource = new AsyncResource(
* type, { triggerAsyncId: executionAsyncId(), requireManualDestroy: false },
* );
*
* // Run a function in the execution context of the resource. This will
* // * establish the context of the resource
* // * trigger the AsyncHooks before callbacks
* // * call the provided function `fn` with the supplied arguments
* // * trigger the AsyncHooks after callbacks
* // * restore the original execution context
* asyncResource.runInAsyncScope(fn, thisArg, ...args);
*
* // Call AsyncHooks destroy callbacks.
* asyncResource.emitDestroy();
*
* // Return the unique ID assigned to the AsyncResource instance.
* asyncResource.asyncId();
*
* // Return the trigger ID for the AsyncResource instance.
* asyncResource.triggerAsyncId();
* ```
*/
class AsyncResource {
/**
* AsyncResource() is meant to be extended. Instantiating a
* new AsyncResource() also triggers init. If triggerAsyncId is omitted then
* async_hook.executionAsyncId() is used.
* @param type The type of async event.
* @param triggerAsyncId The ID of the execution context that created
* this async event (default: `executionAsyncId()`), or an
* AsyncResourceOptions object (since v9.3.0)
*/
constructor(type: string, triggerAsyncId?: number | AsyncResourceOptions);
/**
* Binds the given function to the current execution context.
* @since v14.8.0, v12.19.0
* @param fn The function to bind to the current execution context.
* @param type An optional name to associate with the underlying `AsyncResource`.
*/
static bind<Func extends (this: ThisArg, ...args: any[]) => any, ThisArg>(
fn: Func,
type?: string,
thisArg?: ThisArg,
): Func;
/**
* Binds the given function to execute to this `AsyncResource`'s scope.
* @since v14.8.0, v12.19.0
* @param fn The function to bind to the current `AsyncResource`.
*/
bind<Func extends (...args: any[]) => any>(fn: Func): Func;
/**
* Call the provided function with the provided arguments in the execution context
* of the async resource. This will establish the context, trigger the AsyncHooks
* before callbacks, call the function, trigger the AsyncHooks after callbacks, and
* then restore the original execution context.
* @since v9.6.0
* @param fn The function to call in the execution context of this async resource.
* @param thisArg The receiver to be used for the function call.
* @param args Optional arguments to pass to the function.
*/
runInAsyncScope<This, Result>(
fn: (this: This, ...args: any[]) => Result,
thisArg?: This,
...args: any[]
): Result;
/**
* Call all `destroy` hooks. This should only ever be called once. An error will
* be thrown if it is called more than once. This **must** be manually called. If
* the resource is left to be collected by the GC then the `destroy` hooks will
* never be called.
* @return A reference to `asyncResource`.
*/
emitDestroy(): this;
/**
* @return The unique `asyncId` assigned to the resource.
*/
asyncId(): number;
/**
* @return The same `triggerAsyncId` that is passed to the `AsyncResource` constructor.
*/
triggerAsyncId(): number;
}
/**
* This class creates stores that stay coherent through asynchronous operations.
*
* While you can create your own implementation on top of the `node:async_hooks` module, `AsyncLocalStorage` should be preferred as it is a performant and memory
* safe implementation that involves significant optimizations that are non-obvious
* to implement.
*
* The following example uses `AsyncLocalStorage` to build a simple logger
* that assigns IDs to incoming HTTP requests and includes them in messages
* logged within each request.
*
* ```js
* import http from 'node:http';
* import { AsyncLocalStorage } from 'node:async_hooks';
*
* const asyncLocalStorage = new AsyncLocalStorage();
*
* function logWithId(msg) {
* const id = asyncLocalStorage.getStore();
* console.log(`${id !== undefined ? id : '-'}:`, msg);
* }
*
* let idSeq = 0;
* http.createServer((req, res) => {
* asyncLocalStorage.run(idSeq++, () => {
* logWithId('start');
* // Imagine any chain of async operations here
* setImmediate(() => {
* logWithId('finish');
* res.end();
* });
* });
* }).listen(8080);
*
* http.get('http://localhost:8080');
* http.get('http://localhost:8080');
* // Prints:
* // 0: start
* // 1: start
* // 0: finish
* // 1: finish
* ```
*
* Each instance of `AsyncLocalStorage` maintains an independent storage context.
* Multiple instances can safely exist simultaneously without risk of interfering
* with each other's data.
* @since v13.10.0, v12.17.0
*/
class AsyncLocalStorage<T> {
/**
* Binds the given function to the current execution context.
* @since v19.8.0
* @experimental
* @param fn The function to bind to the current execution context.
* @return A new function that calls `fn` within the captured execution context.
*/
static bind<Func extends (...args: any[]) => any>(fn: Func): Func;
/**
* Captures the current execution context and returns a function that accepts a
* function as an argument. Whenever the returned function is called, it
* calls the function passed to it within the captured context.
*
* ```js
* const asyncLocalStorage = new AsyncLocalStorage();
* const runInAsyncScope = asyncLocalStorage.run(123, () => AsyncLocalStorage.snapshot());
* const result = asyncLocalStorage.run(321, () => runInAsyncScope(() => asyncLocalStorage.getStore()));
* console.log(result); // returns 123
* ```
*
* AsyncLocalStorage.snapshot() can replace the use of AsyncResource for simple
* async context tracking purposes, for example:
*
* ```js
* class Foo {
* #runInAsyncScope = AsyncLocalStorage.snapshot();
*
* get() { return this.#runInAsyncScope(() => asyncLocalStorage.getStore()); }
* }
*
* const foo = asyncLocalStorage.run(123, () => new Foo());
* console.log(asyncLocalStorage.run(321, () => foo.get())); // returns 123
* ```
* @since v19.8.0
* @experimental
* @return A new function with the signature `(fn: (...args) : R, ...args) : R`.
*/
static snapshot(): <R, TArgs extends any[]>(fn: (...args: TArgs) => R, ...args: TArgs) => R;
/**
* Disables the instance of `AsyncLocalStorage`. All subsequent calls
* to `asyncLocalStorage.getStore()` will return `undefined` until `asyncLocalStorage.run()` or `asyncLocalStorage.enterWith()` is called again.
*
* When calling `asyncLocalStorage.disable()`, all current contexts linked to the
* instance will be exited.
*
* Calling `asyncLocalStorage.disable()` is required before the `asyncLocalStorage` can be garbage collected. This does not apply to stores
* provided by the `asyncLocalStorage`, as those objects are garbage collected
* along with the corresponding async resources.
*
* Use this method when the `asyncLocalStorage` is not in use anymore
* in the current process.
* @since v13.10.0, v12.17.0
* @experimental
*/
disable(): void;
/**
* Returns the current store.
* If called outside of an asynchronous context initialized by
* calling `asyncLocalStorage.run()` or `asyncLocalStorage.enterWith()`, it
* returns `undefined`.
* @since v13.10.0, v12.17.0
*/
getStore(): T | undefined;
/**
* Runs a function synchronously within a context and returns its
* return value. The store is not accessible outside of the callback function.
* The store is accessible to any asynchronous operations created within the
* callback.
*
* The optional `args` are passed to the callback function.
*
* If the callback function throws an error, the error is thrown by `run()` too.
* The stacktrace is not impacted by this call and the context is exited.
*
* Example:
*
* ```js
* const store = { id: 2 };
* try {
* asyncLocalStorage.run(store, () => {
* asyncLocalStorage.getStore(); // Returns the store object
* setTimeout(() => {
* asyncLocalStorage.getStore(); // Returns the store object
* }, 200);
* throw new Error();
* });
* } catch (e) {
* asyncLocalStorage.getStore(); // Returns undefined
* // The error will be caught here
* }
* ```
* @since v13.10.0, v12.17.0
*/
run<R>(store: T, callback: () => R): R;
run<R, TArgs extends any[]>(store: T, callback: (...args: TArgs) => R, ...args: TArgs): R;
/**
* Runs a function synchronously outside of a context and returns its
* return value. The store is not accessible within the callback function or
* the asynchronous operations created within the callback. Any `getStore()` call done within the callback function will always return `undefined`.
*
* The optional `args` are passed to the callback function.
*
* If the callback function throws an error, the error is thrown by `exit()` too.
* The stacktrace is not impacted by this call and the context is re-entered.
*
* Example:
*
* ```js
* // Within a call to run
* try {
* asyncLocalStorage.getStore(); // Returns the store object or value
* asyncLocalStorage.exit(() => {
* asyncLocalStorage.getStore(); // Returns undefined
* throw new Error();
* });
* } catch (e) {
* asyncLocalStorage.getStore(); // Returns the same object or value
* // The error will be caught here
* }
* ```
* @since v13.10.0, v12.17.0
* @experimental
*/
exit<R, TArgs extends any[]>(callback: (...args: TArgs) => R, ...args: TArgs): R;
/**
* Transitions into the context for the remainder of the current
* synchronous execution and then persists the store through any following
* asynchronous calls.
*
* Example:
*
* ```js
* const store = { id: 1 };
* // Replaces previous store with the given store object
* asyncLocalStorage.enterWith(store);
* asyncLocalStorage.getStore(); // Returns the store object
* someAsyncOperation(() => {
* asyncLocalStorage.getStore(); // Returns the same object
* });
* ```
*
* This transition will continue for the _entire_ synchronous execution.
* This means that if, for example, the context is entered within an event
* handler subsequent event handlers will also run within that context unless
* specifically bound to another context with an `AsyncResource`. That is why `run()` should be preferred over `enterWith()` unless there are strong reasons
* to use the latter method.
*
* ```js
* const store = { id: 1 };
*
* emitter.on('my-event', () => {
* asyncLocalStorage.enterWith(store);
* });
* emitter.on('my-event', () => {
* asyncLocalStorage.getStore(); // Returns the same object
* });
*
* asyncLocalStorage.getStore(); // Returns undefined
* emitter.emit('my-event');
* asyncLocalStorage.getStore(); // Returns the same object
* ```
* @since v13.11.0, v12.17.0
* @experimental
*/
enterWith(store: T): void;
}
}
declare module "node:async_hooks" {
export * from "async_hooks";
}
+385
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@@ -0,0 +1,385 @@
declare module "buffer" {
global {
interface BufferConstructor {
// see buffer.d.ts for implementation shared with all TypeScript versions
/**
* Allocates a new buffer containing the given {str}.
*
* @param str String to store in buffer.
* @param encoding encoding to use, optional. Default is 'utf8'
* @deprecated since v10.0.0 - Use `Buffer.from(string[, encoding])` instead.
*/
new(str: string, encoding?: BufferEncoding): Buffer<ArrayBuffer>;
/**
* Allocates a new buffer of {size} octets.
*
* @param size count of octets to allocate.
* @deprecated since v10.0.0 - Use `Buffer.alloc()` instead (also see `Buffer.allocUnsafe()`).
*/
new(size: number): Buffer<ArrayBuffer>;
/**
* Allocates a new buffer containing the given {array} of octets.
*
* @param array The octets to store.
* @deprecated since v10.0.0 - Use `Buffer.from(array)` instead.
*/
new(array: Uint8Array): Buffer<ArrayBuffer>;
/**
* Produces a Buffer backed by the same allocated memory as
* the given {ArrayBuffer}/{SharedArrayBuffer}.
*
* @param arrayBuffer The ArrayBuffer with which to share memory.
* @deprecated since v10.0.0 - Use `Buffer.from(arrayBuffer[, byteOffset[, length]])` instead.
*/
new<TArrayBuffer extends ArrayBufferLike = ArrayBuffer>(arrayBuffer: TArrayBuffer): Buffer<TArrayBuffer>;
/**
* Allocates a new buffer containing the given {array} of octets.
*
* @param array The octets to store.
* @deprecated since v10.0.0 - Use `Buffer.from(array)` instead.
*/
new(array: readonly any[]): Buffer<ArrayBuffer>;
/**
* Copies the passed {buffer} data onto a new {Buffer} instance.
*
* @param buffer The buffer to copy.
* @deprecated since v10.0.0 - Use `Buffer.from(buffer)` instead.
*/
new(buffer: Buffer): Buffer<ArrayBuffer>;
/**
* Allocates a new `Buffer` using an `array` of bytes in the range `0` `255`.
* Array entries outside that range will be truncated to fit into it.
*
* ```js
* import { Buffer } from 'node:buffer';
*
* // Creates a new Buffer containing the UTF-8 bytes of the string 'buffer'.
* const buf = Buffer.from([0x62, 0x75, 0x66, 0x66, 0x65, 0x72]);
* ```
*
* If `array` is an `Array`\-like object (that is, one with a `length` property of
* type `number`), it is treated as if it is an array, unless it is a `Buffer` or
* a `Uint8Array`. This means all other `TypedArray` variants get treated as an `Array`. To create a `Buffer` from the bytes backing a `TypedArray`, use `Buffer.copyBytesFrom()`.
*
* A `TypeError` will be thrown if `array` is not an `Array` or another type
* appropriate for `Buffer.from()` variants.
*
* `Buffer.from(array)` and `Buffer.from(string)` may also use the internal `Buffer` pool like `Buffer.allocUnsafe()` does.
* @since v5.10.0
*/
from<TArrayBuffer extends ArrayBufferLike>(
arrayBuffer: WithImplicitCoercion<TArrayBuffer>,
byteOffset?: number,
length?: number,
): Buffer<TArrayBuffer>;
/**
* Creates a new Buffer using the passed {data}
* @param data data to create a new Buffer
*/
from(data: Uint8Array | readonly number[]): Buffer<ArrayBuffer>;
from(data: WithImplicitCoercion<Uint8Array | readonly number[] | string>): Buffer<ArrayBuffer>;
/**
* Creates a new Buffer containing the given JavaScript string {str}.
* If provided, the {encoding} parameter identifies the character encoding.
* If not provided, {encoding} defaults to 'utf8'.
*/
from(
str:
| WithImplicitCoercion<string>
| {
[Symbol.toPrimitive](hint: "string"): string;
},
encoding?: BufferEncoding,
): Buffer<ArrayBuffer>;
/**
* Creates a new Buffer using the passed {data}
* @param values to create a new Buffer
*/
of(...items: number[]): Buffer<ArrayBuffer>;
/**
* Returns a new `Buffer` which is the result of concatenating all the `Buffer` instances in the `list` together.
*
* If the list has no items, or if the `totalLength` is 0, then a new zero-length `Buffer` is returned.
*
* If `totalLength` is not provided, it is calculated from the `Buffer` instances
* in `list` by adding their lengths.
*
* If `totalLength` is provided, it is coerced to an unsigned integer. If the
* combined length of the `Buffer`s in `list` exceeds `totalLength`, the result is
* truncated to `totalLength`.
*
* ```js
* import { Buffer } from 'node:buffer';
*
* // Create a single `Buffer` from a list of three `Buffer` instances.
*
* const buf1 = Buffer.alloc(10);
* const buf2 = Buffer.alloc(14);
* const buf3 = Buffer.alloc(18);
* const totalLength = buf1.length + buf2.length + buf3.length;
*
* console.log(totalLength);
* // Prints: 42
*
* const bufA = Buffer.concat([buf1, buf2, buf3], totalLength);
*
* console.log(bufA);
* // Prints: <Buffer 00 00 00 00 ...>
* console.log(bufA.length);
* // Prints: 42
* ```
*
* `Buffer.concat()` may also use the internal `Buffer` pool like `Buffer.allocUnsafe()` does.
* @since v0.7.11
* @param list List of `Buffer` or {@link Uint8Array} instances to concatenate.
* @param totalLength Total length of the `Buffer` instances in `list` when concatenated.
*/
concat(list: readonly Uint8Array[], totalLength?: number): Buffer<ArrayBuffer>;
/**
* Copies the underlying memory of `view` into a new `Buffer`.
*
* ```js
* const u16 = new Uint16Array([0, 0xffff]);
* const buf = Buffer.copyBytesFrom(u16, 1, 1);
* u16[1] = 0;
* console.log(buf.length); // 2
* console.log(buf[0]); // 255
* console.log(buf[1]); // 255
* ```
* @since v19.8.0
* @param view The {TypedArray} to copy.
* @param [offset=0] The starting offset within `view`.
* @param [length=view.length - offset] The number of elements from `view` to copy.
*/
copyBytesFrom(view: NodeJS.TypedArray, offset?: number, length?: number): Buffer<ArrayBuffer>;
/**
* Allocates a new `Buffer` of `size` bytes. If `fill` is `undefined`, the`Buffer` will be zero-filled.
*
* ```js
* import { Buffer } from 'node:buffer';
*
* const buf = Buffer.alloc(5);
*
* console.log(buf);
* // Prints: <Buffer 00 00 00 00 00>
* ```
*
* If `size` is larger than {@link constants.MAX_LENGTH} or smaller than 0, `ERR_OUT_OF_RANGE` is thrown.
*
* If `fill` is specified, the allocated `Buffer` will be initialized by calling `buf.fill(fill)`.
*
* ```js
* import { Buffer } from 'node:buffer';
*
* const buf = Buffer.alloc(5, 'a');
*
* console.log(buf);
* // Prints: <Buffer 61 61 61 61 61>
* ```
*
* If both `fill` and `encoding` are specified, the allocated `Buffer` will be
* initialized by calling `buf.fill(fill, encoding)`.
*
* ```js
* import { Buffer } from 'node:buffer';
*
* const buf = Buffer.alloc(11, 'aGVsbG8gd29ybGQ=', 'base64');
*
* console.log(buf);
* // Prints: <Buffer 68 65 6c 6c 6f 20 77 6f 72 6c 64>
* ```
*
* Calling `Buffer.alloc()` can be measurably slower than the alternative `Buffer.allocUnsafe()` but ensures that the newly created `Buffer` instance
* contents will never contain sensitive data from previous allocations, including
* data that might not have been allocated for `Buffer`s.
*
* A `TypeError` will be thrown if `size` is not a number.
* @since v5.10.0
* @param size The desired length of the new `Buffer`.
* @param [fill=0] A value to pre-fill the new `Buffer` with.
* @param [encoding='utf8'] If `fill` is a string, this is its encoding.
*/
alloc(size: number, fill?: string | Uint8Array | number, encoding?: BufferEncoding): Buffer<ArrayBuffer>;
/**
* Allocates a new `Buffer` of `size` bytes. If `size` is larger than {@link constants.MAX_LENGTH} or smaller than 0, `ERR_OUT_OF_RANGE` is thrown.
*
* The underlying memory for `Buffer` instances created in this way is _not_
* _initialized_. The contents of the newly created `Buffer` are unknown and _may contain sensitive data_. Use `Buffer.alloc()` instead to initialize`Buffer` instances with zeroes.
*
* ```js
* import { Buffer } from 'node:buffer';
*
* const buf = Buffer.allocUnsafe(10);
*
* console.log(buf);
* // Prints (contents may vary): <Buffer a0 8b 28 3f 01 00 00 00 50 32>
*
* buf.fill(0);
*
* console.log(buf);
* // Prints: <Buffer 00 00 00 00 00 00 00 00 00 00>
* ```
*
* A `TypeError` will be thrown if `size` is not a number.
*
* The `Buffer` module pre-allocates an internal `Buffer` instance of
* size `Buffer.poolSize` that is used as a pool for the fast allocation of new `Buffer` instances created using `Buffer.allocUnsafe()`, `Buffer.from(array)`,
* and `Buffer.concat()` only when `size` is less than `Buffer.poolSize >>> 1` (floor of `Buffer.poolSize` divided by two).
*
* Use of this pre-allocated internal memory pool is a key difference between
* calling `Buffer.alloc(size, fill)` vs. `Buffer.allocUnsafe(size).fill(fill)`.
* Specifically, `Buffer.alloc(size, fill)` will _never_ use the internal `Buffer`pool, while `Buffer.allocUnsafe(size).fill(fill)`_will_ use the internal`Buffer` pool if `size` is less
* than or equal to half `Buffer.poolSize`. The
* difference is subtle but can be important when an application requires the
* additional performance that `Buffer.allocUnsafe()` provides.
* @since v5.10.0
* @param size The desired length of the new `Buffer`.
*/
allocUnsafe(size: number): Buffer<ArrayBuffer>;
/**
* Allocates a new `Buffer` of `size` bytes. If `size` is larger than {@link constants.MAX_LENGTH} or smaller than 0, `ERR_OUT_OF_RANGE` is thrown. A zero-length `Buffer` is created if
* `size` is 0.
*
* The underlying memory for `Buffer` instances created in this way is _not_
* _initialized_. The contents of the newly created `Buffer` are unknown and _may contain sensitive data_. Use `buf.fill(0)` to initialize
* such `Buffer` instances with zeroes.
*
* When using `Buffer.allocUnsafe()` to allocate new `Buffer` instances,
* allocations under 4 KiB are sliced from a single pre-allocated `Buffer`. This
* allows applications to avoid the garbage collection overhead of creating many
* individually allocated `Buffer` instances. This approach improves both
* performance and memory usage by eliminating the need to track and clean up as
* many individual `ArrayBuffer` objects.
*
* However, in the case where a developer may need to retain a small chunk of
* memory from a pool for an indeterminate amount of time, it may be appropriate
* to create an un-pooled `Buffer` instance using `Buffer.allocUnsafeSlow()` and
* then copying out the relevant bits.
*
* ```js
* import { Buffer } from 'node:buffer';
*
* // Need to keep around a few small chunks of memory.
* const store = [];
*
* socket.on('readable', () => {
* let data;
* while (null !== (data = readable.read())) {
* // Allocate for retained data.
* const sb = Buffer.allocUnsafeSlow(10);
*
* // Copy the data into the new allocation.
* data.copy(sb, 0, 0, 10);
*
* store.push(sb);
* }
* });
* ```
*
* A `TypeError` will be thrown if `size` is not a number.
* @since v5.12.0
* @param size The desired length of the new `Buffer`.
*/
allocUnsafeSlow(size: number): Buffer<ArrayBuffer>;
}
interface Buffer<TArrayBuffer extends ArrayBufferLike = ArrayBufferLike> extends Uint8Array<TArrayBuffer> {
// see buffer.d.ts for implementation shared with all TypeScript versions
/**
* Returns a new `Buffer` that references the same memory as the original, but
* offset and cropped by the `start` and `end` indices.
*
* This method is not compatible with the `Uint8Array.prototype.slice()`,
* which is a superclass of `Buffer`. To copy the slice, use`Uint8Array.prototype.slice()`.
*
* ```js
* import { Buffer } from 'node:buffer';
*
* const buf = Buffer.from('buffer');
*
* const copiedBuf = Uint8Array.prototype.slice.call(buf);
* copiedBuf[0]++;
* console.log(copiedBuf.toString());
* // Prints: cuffer
*
* console.log(buf.toString());
* // Prints: buffer
*
* // With buf.slice(), the original buffer is modified.
* const notReallyCopiedBuf = buf.slice();
* notReallyCopiedBuf[0]++;
* console.log(notReallyCopiedBuf.toString());
* // Prints: cuffer
* console.log(buf.toString());
* // Also prints: cuffer (!)
* ```
* @since v0.3.0
* @deprecated Use `subarray` instead.
* @param [start=0] Where the new `Buffer` will start.
* @param [end=buf.length] Where the new `Buffer` will end (not inclusive).
*/
slice(start?: number, end?: number): Buffer<ArrayBuffer>;
/**
* Returns a new `Buffer` that references the same memory as the original, but
* offset and cropped by the `start` and `end` indices.
*
* Specifying `end` greater than `buf.length` will return the same result as
* that of `end` equal to `buf.length`.
*
* This method is inherited from [`TypedArray.prototype.subarray()`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypedArray/subarray).
*
* Modifying the new `Buffer` slice will modify the memory in the original `Buffer`because the allocated memory of the two objects overlap.
*
* ```js
* import { Buffer } from 'node:buffer';
*
* // Create a `Buffer` with the ASCII alphabet, take a slice, and modify one byte
* // from the original `Buffer`.
*
* const buf1 = Buffer.allocUnsafe(26);
*
* for (let i = 0; i < 26; i++) {
* // 97 is the decimal ASCII value for 'a'.
* buf1[i] = i + 97;
* }
*
* const buf2 = buf1.subarray(0, 3);
*
* console.log(buf2.toString('ascii', 0, buf2.length));
* // Prints: abc
*
* buf1[0] = 33;
*
* console.log(buf2.toString('ascii', 0, buf2.length));
* // Prints: !bc
* ```
*
* Specifying negative indexes causes the slice to be generated relative to the
* end of `buf` rather than the beginning.
*
* ```js
* import { Buffer } from 'node:buffer';
*
* const buf = Buffer.from('buffer');
*
* console.log(buf.subarray(-6, -1).toString());
* // Prints: buffe
* // (Equivalent to buf.subarray(0, 5).)
*
* console.log(buf.subarray(-6, -2).toString());
* // Prints: buff
* // (Equivalent to buf.subarray(0, 4).)
*
* console.log(buf.subarray(-5, -2).toString());
* // Prints: uff
* // (Equivalent to buf.subarray(1, 4).)
* ```
* @since v3.0.0
* @param [start=0] Where the new `Buffer` will start.
* @param [end=buf.length] Where the new `Buffer` will end (not inclusive).
*/
subarray(start?: number, end?: number): Buffer<TArrayBuffer>;
}
}
}
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/**
* Clusters of Node.js processes can be used to run multiple instances of Node.js
* that can distribute workloads among their application threads. When process isolation
* is not needed, use the [`worker_threads`](https://nodejs.org/docs/latest-v22.x/api/worker_threads.html)
* module instead, which allows running multiple application threads within a single Node.js instance.
*
* The cluster module allows easy creation of child processes that all share
* server ports.
*
* ```js
* import cluster from 'node:cluster';
* import http from 'node:http';
* import { availableParallelism } from 'node:os';
* import process from 'node:process';
*
* const numCPUs = availableParallelism();
*
* if (cluster.isPrimary) {
* console.log(`Primary ${process.pid} is running`);
*
* // Fork workers.
* for (let i = 0; i < numCPUs; i++) {
* cluster.fork();
* }
*
* cluster.on('exit', (worker, code, signal) => {
* console.log(`worker ${worker.process.pid} died`);
* });
* } else {
* // Workers can share any TCP connection
* // In this case it is an HTTP server
* http.createServer((req, res) => {
* res.writeHead(200);
* res.end('hello world\n');
* }).listen(8000);
*
* console.log(`Worker ${process.pid} started`);
* }
* ```
*
* Running Node.js will now share port 8000 between the workers:
*
* ```console
* $ node server.js
* Primary 3596 is running
* Worker 4324 started
* Worker 4520 started
* Worker 6056 started
* Worker 5644 started
* ```
*
* On Windows, it is not yet possible to set up a named pipe server in a worker.
* @see [source](https://github.com/nodejs/node/blob/v22.x/lib/cluster.js)
*/
declare module "cluster" {
import * as child from "node:child_process";
import EventEmitter = require("node:events");
import * as net from "node:net";
type SerializationType = "json" | "advanced";
export interface ClusterSettings {
/**
* List of string arguments passed to the Node.js executable.
* @default process.execArgv
*/
execArgv?: string[] | undefined;
/**
* File path to worker file.
* @default process.argv[1]
*/
exec?: string | undefined;
/**
* String arguments passed to worker.
* @default process.argv.slice(2)
*/
args?: string[] | undefined;
/**
* Whether or not to send output to parent's stdio.
* @default false
*/
silent?: boolean | undefined;
/**
* Configures the stdio of forked processes. Because the cluster module relies on IPC to function, this configuration must
* contain an `'ipc'` entry. When this option is provided, it overrides `silent`. See [`child_prcess.spawn()`](https://nodejs.org/docs/latest-v22.x/api/child_process.html#child_processspawncommand-args-options)'s
* [`stdio`](https://nodejs.org/docs/latest-v22.x/api/child_process.html#optionsstdio).
*/
stdio?: any[] | undefined;
/**
* Sets the user identity of the process. (See [`setuid(2)`](https://man7.org/linux/man-pages/man2/setuid.2.html).)
*/
uid?: number | undefined;
/**
* Sets the group identity of the process. (See [`setgid(2)`](https://man7.org/linux/man-pages/man2/setgid.2.html).)
*/
gid?: number | undefined;
/**
* Sets inspector port of worker. This can be a number, or a function that takes no arguments and returns a number.
* By default each worker gets its own port, incremented from the primary's `process.debugPort`.
*/
inspectPort?: number | (() => number) | undefined;
/**
* Specify the kind of serialization used for sending messages between processes. Possible values are `'json'` and `'advanced'`.
* See [Advanced serialization for `child_process`](https://nodejs.org/docs/latest-v22.x/api/child_process.html#advanced-serialization) for more details.
* @default false
*/
serialization?: SerializationType | undefined;
/**
* Current working directory of the worker process.
* @default undefined (inherits from parent process)
*/
cwd?: string | undefined;
/**
* Hide the forked processes console window that would normally be created on Windows systems.
* @default false
*/
windowsHide?: boolean | undefined;
}
export interface Address {
address: string;
port: number;
/**
* The `addressType` is one of:
*
* * `4` (TCPv4)
* * `6` (TCPv6)
* * `-1` (Unix domain socket)
* * `'udp4'` or `'udp6'` (UDPv4 or UDPv6)
*/
addressType: 4 | 6 | -1 | "udp4" | "udp6";
}
/**
* A `Worker` object contains all public information and method about a worker.
* In the primary it can be obtained using `cluster.workers`. In a worker
* it can be obtained using `cluster.worker`.
* @since v0.7.0
*/
export class Worker extends EventEmitter {
/**
* Each new worker is given its own unique id, this id is stored in the `id`.
*
* While a worker is alive, this is the key that indexes it in `cluster.workers`.
* @since v0.8.0
*/
id: number;
/**
* All workers are created using [`child_process.fork()`](https://nodejs.org/docs/latest-v22.x/api/child_process.html#child_processforkmodulepath-args-options), the returned object
* from this function is stored as `.process`. In a worker, the global `process` is stored.
*
* See: [Child Process module](https://nodejs.org/docs/latest-v22.x/api/child_process.html#child_processforkmodulepath-args-options).
*
* Workers will call `process.exit(0)` if the `'disconnect'` event occurs
* on `process` and `.exitedAfterDisconnect` is not `true`. This protects against
* accidental disconnection.
* @since v0.7.0
*/
process: child.ChildProcess;
/**
* Send a message to a worker or primary, optionally with a handle.
*
* In the primary, this sends a message to a specific worker. It is identical to [`ChildProcess.send()`](https://nodejs.org/docs/latest-v22.x/api/child_process.html#subprocesssendmessage-sendhandle-options-callback).
*
* In a worker, this sends a message to the primary. It is identical to `process.send()`.
*
* This example will echo back all messages from the primary:
*
* ```js
* if (cluster.isPrimary) {
* const worker = cluster.fork();
* worker.send('hi there');
*
* } else if (cluster.isWorker) {
* process.on('message', (msg) => {
* process.send(msg);
* });
* }
* ```
* @since v0.7.0
* @param options The `options` argument, if present, is an object used to parameterize the sending of certain types of handles.
*/
send(message: child.Serializable, callback?: (error: Error | null) => void): boolean;
send(
message: child.Serializable,
sendHandle: child.SendHandle,
callback?: (error: Error | null) => void,
): boolean;
send(
message: child.Serializable,
sendHandle: child.SendHandle,
options?: child.MessageOptions,
callback?: (error: Error | null) => void,
): boolean;
/**
* This function will kill the worker. In the primary worker, it does this by
* disconnecting the `worker.process`, and once disconnected, killing with `signal`. In the worker, it does it by killing the process with `signal`.
*
* The `kill()` function kills the worker process without waiting for a graceful
* disconnect, it has the same behavior as `worker.process.kill()`.
*
* This method is aliased as `worker.destroy()` for backwards compatibility.
*
* In a worker, `process.kill()` exists, but it is not this function;
* it is [`kill()`](https://nodejs.org/docs/latest-v22.x/api/process.html#processkillpid-signal).
* @since v0.9.12
* @param [signal='SIGTERM'] Name of the kill signal to send to the worker process.
*/
kill(signal?: string): void;
destroy(signal?: string): void;
/**
* In a worker, this function will close all servers, wait for the `'close'` event
* on those servers, and then disconnect the IPC channel.
*
* In the primary, an internal message is sent to the worker causing it to call `.disconnect()` on itself.
*
* Causes `.exitedAfterDisconnect` to be set.
*
* After a server is closed, it will no longer accept new connections,
* but connections may be accepted by any other listening worker. Existing
* connections will be allowed to close as usual. When no more connections exist,
* see `server.close()`, the IPC channel to the worker will close allowing it
* to die gracefully.
*
* The above applies _only_ to server connections, client connections are not
* automatically closed by workers, and disconnect does not wait for them to close
* before exiting.
*
* In a worker, `process.disconnect` exists, but it is not this function;
* it is `disconnect()`.
*
* Because long living server connections may block workers from disconnecting, it
* may be useful to send a message, so application specific actions may be taken to
* close them. It also may be useful to implement a timeout, killing a worker if
* the `'disconnect'` event has not been emitted after some time.
*
* ```js
* import net from 'node:net';
*
* if (cluster.isPrimary) {
* const worker = cluster.fork();
* let timeout;
*
* worker.on('listening', (address) => {
* worker.send('shutdown');
* worker.disconnect();
* timeout = setTimeout(() => {
* worker.kill();
* }, 2000);
* });
*
* worker.on('disconnect', () => {
* clearTimeout(timeout);
* });
*
* } else if (cluster.isWorker) {
* const server = net.createServer((socket) => {
* // Connections never end
* });
*
* server.listen(8000);
*
* process.on('message', (msg) => {
* if (msg === 'shutdown') {
* // Initiate graceful close of any connections to server
* }
* });
* }
* ```
* @since v0.7.7
* @return A reference to `worker`.
*/
disconnect(): void;
/**
* This function returns `true` if the worker is connected to its primary via its
* IPC channel, `false` otherwise. A worker is connected to its primary after it
* has been created. It is disconnected after the `'disconnect'` event is emitted.
* @since v0.11.14
*/
isConnected(): boolean;
/**
* This function returns `true` if the worker's process has terminated (either
* because of exiting or being signaled). Otherwise, it returns `false`.
*
* ```js
* import cluster from 'node:cluster';
* import http from 'node:http';
* import { availableParallelism } from 'node:os';
* import process from 'node:process';
*
* const numCPUs = availableParallelism();
*
* if (cluster.isPrimary) {
* console.log(`Primary ${process.pid} is running`);
*
* // Fork workers.
* for (let i = 0; i < numCPUs; i++) {
* cluster.fork();
* }
*
* cluster.on('fork', (worker) => {
* console.log('worker is dead:', worker.isDead());
* });
*
* cluster.on('exit', (worker, code, signal) => {
* console.log('worker is dead:', worker.isDead());
* });
* } else {
* // Workers can share any TCP connection. In this case, it is an HTTP server.
* http.createServer((req, res) => {
* res.writeHead(200);
* res.end(`Current process\n ${process.pid}`);
* process.kill(process.pid);
* }).listen(8000);
* }
* ```
* @since v0.11.14
*/
isDead(): boolean;
/**
* This property is `true` if the worker exited due to `.disconnect()`.
* If the worker exited any other way, it is `false`. If the
* worker has not exited, it is `undefined`.
*
* The boolean `worker.exitedAfterDisconnect` allows distinguishing between
* voluntary and accidental exit, the primary may choose not to respawn a worker
* based on this value.
*
* ```js
* cluster.on('exit', (worker, code, signal) => {
* if (worker.exitedAfterDisconnect === true) {
* console.log('Oh, it was just voluntary no need to worry');
* }
* });
*
* // kill worker
* worker.kill();
* ```
* @since v6.0.0
*/
exitedAfterDisconnect: boolean;
/**
* events.EventEmitter
* 1. disconnect
* 2. error
* 3. exit
* 4. listening
* 5. message
* 6. online
*/
addListener(event: string, listener: (...args: any[]) => void): this;
addListener(event: "disconnect", listener: () => void): this;
addListener(event: "error", listener: (error: Error) => void): this;
addListener(event: "exit", listener: (code: number, signal: string) => void): this;
addListener(event: "listening", listener: (address: Address) => void): this;
addListener(event: "message", listener: (message: any, handle: net.Socket | net.Server) => void): this; // the handle is a net.Socket or net.Server object, or undefined.
addListener(event: "online", listener: () => void): this;
emit(event: string | symbol, ...args: any[]): boolean;
emit(event: "disconnect"): boolean;
emit(event: "error", error: Error): boolean;
emit(event: "exit", code: number, signal: string): boolean;
emit(event: "listening", address: Address): boolean;
emit(event: "message", message: any, handle: net.Socket | net.Server): boolean;
emit(event: "online"): boolean;
on(event: string, listener: (...args: any[]) => void): this;
on(event: "disconnect", listener: () => void): this;
on(event: "error", listener: (error: Error) => void): this;
on(event: "exit", listener: (code: number, signal: string) => void): this;
on(event: "listening", listener: (address: Address) => void): this;
on(event: "message", listener: (message: any, handle: net.Socket | net.Server) => void): this; // the handle is a net.Socket or net.Server object, or undefined.
on(event: "online", listener: () => void): this;
once(event: string, listener: (...args: any[]) => void): this;
once(event: "disconnect", listener: () => void): this;
once(event: "error", listener: (error: Error) => void): this;
once(event: "exit", listener: (code: number, signal: string) => void): this;
once(event: "listening", listener: (address: Address) => void): this;
once(event: "message", listener: (message: any, handle: net.Socket | net.Server) => void): this; // the handle is a net.Socket or net.Server object, or undefined.
once(event: "online", listener: () => void): this;
prependListener(event: string, listener: (...args: any[]) => void): this;
prependListener(event: "disconnect", listener: () => void): this;
prependListener(event: "error", listener: (error: Error) => void): this;
prependListener(event: "exit", listener: (code: number, signal: string) => void): this;
prependListener(event: "listening", listener: (address: Address) => void): this;
prependListener(event: "message", listener: (message: any, handle: net.Socket | net.Server) => void): this; // the handle is a net.Socket or net.Server object, or undefined.
prependListener(event: "online", listener: () => void): this;
prependOnceListener(event: string, listener: (...args: any[]) => void): this;
prependOnceListener(event: "disconnect", listener: () => void): this;
prependOnceListener(event: "error", listener: (error: Error) => void): this;
prependOnceListener(event: "exit", listener: (code: number, signal: string) => void): this;
prependOnceListener(event: "listening", listener: (address: Address) => void): this;
prependOnceListener(event: "message", listener: (message: any, handle: net.Socket | net.Server) => void): this; // the handle is a net.Socket or net.Server object, or undefined.
prependOnceListener(event: "online", listener: () => void): this;
}
export interface Cluster extends EventEmitter {
disconnect(callback?: () => void): void;
/**
* Spawn a new worker process.
*
* This can only be called from the primary process.
* @param env Key/value pairs to add to worker process environment.
* @since v0.6.0
*/
fork(env?: any): Worker;
/** @deprecated since v16.0.0 - use isPrimary. */
readonly isMaster: boolean;
/**
* True if the process is a primary. This is determined by the `process.env.NODE_UNIQUE_ID`. If `process.env.NODE_UNIQUE_ID`
* is undefined, then `isPrimary` is `true`.
* @since v16.0.0
*/
readonly isPrimary: boolean;
/**
* True if the process is not a primary (it is the negation of `cluster.isPrimary`).
* @since v0.6.0
*/
readonly isWorker: boolean;
/**
* The scheduling policy, either `cluster.SCHED_RR` for round-robin or `cluster.SCHED_NONE` to leave it to the operating system. This is a
* global setting and effectively frozen once either the first worker is spawned, or [`.setupPrimary()`](https://nodejs.org/docs/latest-v22.x/api/cluster.html#clustersetupprimarysettings)
* is called, whichever comes first.
*
* `SCHED_RR` is the default on all operating systems except Windows. Windows will change to `SCHED_RR` once libuv is able to effectively distribute
* IOCP handles without incurring a large performance hit.
*
* `cluster.schedulingPolicy` can also be set through the `NODE_CLUSTER_SCHED_POLICY` environment variable. Valid values are `'rr'` and `'none'`.
* @since v0.11.2
*/
schedulingPolicy: number;
/**
* After calling [`.setupPrimary()`](https://nodejs.org/docs/latest-v22.x/api/cluster.html#clustersetupprimarysettings)
* (or [`.fork()`](https://nodejs.org/docs/latest-v22.x/api/cluster.html#clusterforkenv)) this settings object will contain
* the settings, including the default values.
*
* This object is not intended to be changed or set manually.
* @since v0.7.1
*/
readonly settings: ClusterSettings;
/** @deprecated since v16.0.0 - use [`.setupPrimary()`](https://nodejs.org/docs/latest-v22.x/api/cluster.html#clustersetupprimarysettings) instead. */
setupMaster(settings?: ClusterSettings): void;
/**
* `setupPrimary` is used to change the default 'fork' behavior. Once called, the settings will be present in `cluster.settings`.
*
* Any settings changes only affect future calls to [`.fork()`](https://nodejs.org/docs/latest-v22.x/api/cluster.html#clusterforkenv)
* and have no effect on workers that are already running.
*
* The only attribute of a worker that cannot be set via `.setupPrimary()` is the `env` passed to
* [`.fork()`](https://nodejs.org/docs/latest-v22.x/api/cluster.html#clusterforkenv).
*
* The defaults above apply to the first call only; the defaults for later calls are the current values at the time of
* `cluster.setupPrimary()` is called.
*
* ```js
* import cluster from 'node:cluster';
*
* cluster.setupPrimary({
* exec: 'worker.js',
* args: ['--use', 'https'],
* silent: true,
* });
* cluster.fork(); // https worker
* cluster.setupPrimary({
* exec: 'worker.js',
* args: ['--use', 'http'],
* });
* cluster.fork(); // http worker
* ```
*
* This can only be called from the primary process.
* @since v16.0.0
*/
setupPrimary(settings?: ClusterSettings): void;
/**
* A reference to the current worker object. Not available in the primary process.
*
* ```js
* import cluster from 'node:cluster';
*
* if (cluster.isPrimary) {
* console.log('I am primary');
* cluster.fork();
* cluster.fork();
* } else if (cluster.isWorker) {
* console.log(`I am worker #${cluster.worker.id}`);
* }
* ```
* @since v0.7.0
*/
readonly worker?: Worker | undefined;
/**
* A hash that stores the active worker objects, keyed by `id` field. This makes it easy to loop through all the workers. It is only available in the primary process.
*
* A worker is removed from `cluster.workers` after the worker has disconnected _and_ exited. The order between these two events cannot be determined in advance. However, it
* is guaranteed that the removal from the `cluster.workers` list happens before the last `'disconnect'` or `'exit'` event is emitted.
*
* ```js
* import cluster from 'node:cluster';
*
* for (const worker of Object.values(cluster.workers)) {
* worker.send('big announcement to all workers');
* }
* ```
* @since v0.7.0
*/
readonly workers?: NodeJS.Dict<Worker> | undefined;
readonly SCHED_NONE: number;
readonly SCHED_RR: number;
/**
* events.EventEmitter
* 1. disconnect
* 2. exit
* 3. fork
* 4. listening
* 5. message
* 6. online
* 7. setup
*/
addListener(event: string, listener: (...args: any[]) => void): this;
addListener(event: "disconnect", listener: (worker: Worker) => void): this;
addListener(event: "exit", listener: (worker: Worker, code: number, signal: string) => void): this;
addListener(event: "fork", listener: (worker: Worker) => void): this;
addListener(event: "listening", listener: (worker: Worker, address: Address) => void): this;
addListener(
event: "message",
listener: (worker: Worker, message: any, handle: net.Socket | net.Server) => void,
): this; // the handle is a net.Socket or net.Server object, or undefined.
addListener(event: "online", listener: (worker: Worker) => void): this;
addListener(event: "setup", listener: (settings: ClusterSettings) => void): this;
emit(event: string | symbol, ...args: any[]): boolean;
emit(event: "disconnect", worker: Worker): boolean;
emit(event: "exit", worker: Worker, code: number, signal: string): boolean;
emit(event: "fork", worker: Worker): boolean;
emit(event: "listening", worker: Worker, address: Address): boolean;
emit(event: "message", worker: Worker, message: any, handle: net.Socket | net.Server): boolean;
emit(event: "online", worker: Worker): boolean;
emit(event: "setup", settings: ClusterSettings): boolean;
on(event: string, listener: (...args: any[]) => void): this;
on(event: "disconnect", listener: (worker: Worker) => void): this;
on(event: "exit", listener: (worker: Worker, code: number, signal: string) => void): this;
on(event: "fork", listener: (worker: Worker) => void): this;
on(event: "listening", listener: (worker: Worker, address: Address) => void): this;
on(event: "message", listener: (worker: Worker, message: any, handle: net.Socket | net.Server) => void): this; // the handle is a net.Socket or net.Server object, or undefined.
on(event: "online", listener: (worker: Worker) => void): this;
on(event: "setup", listener: (settings: ClusterSettings) => void): this;
once(event: string, listener: (...args: any[]) => void): this;
once(event: "disconnect", listener: (worker: Worker) => void): this;
once(event: "exit", listener: (worker: Worker, code: number, signal: string) => void): this;
once(event: "fork", listener: (worker: Worker) => void): this;
once(event: "listening", listener: (worker: Worker, address: Address) => void): this;
once(event: "message", listener: (worker: Worker, message: any, handle: net.Socket | net.Server) => void): this; // the handle is a net.Socket or net.Server object, or undefined.
once(event: "online", listener: (worker: Worker) => void): this;
once(event: "setup", listener: (settings: ClusterSettings) => void): this;
prependListener(event: string, listener: (...args: any[]) => void): this;
prependListener(event: "disconnect", listener: (worker: Worker) => void): this;
prependListener(event: "exit", listener: (worker: Worker, code: number, signal: string) => void): this;
prependListener(event: "fork", listener: (worker: Worker) => void): this;
prependListener(event: "listening", listener: (worker: Worker, address: Address) => void): this;
// the handle is a net.Socket or net.Server object, or undefined.
prependListener(
event: "message",
listener: (worker: Worker, message: any, handle?: net.Socket | net.Server) => void,
): this;
prependListener(event: "online", listener: (worker: Worker) => void): this;
prependListener(event: "setup", listener: (settings: ClusterSettings) => void): this;
prependOnceListener(event: string, listener: (...args: any[]) => void): this;
prependOnceListener(event: "disconnect", listener: (worker: Worker) => void): this;
prependOnceListener(event: "exit", listener: (worker: Worker, code: number, signal: string) => void): this;
prependOnceListener(event: "fork", listener: (worker: Worker) => void): this;
prependOnceListener(event: "listening", listener: (worker: Worker, address: Address) => void): this;
// the handle is a net.Socket or net.Server object, or undefined.
prependOnceListener(
event: "message",
listener: (worker: Worker, message: any, handle: net.Socket | net.Server) => void,
): this;
prependOnceListener(event: "online", listener: (worker: Worker) => void): this;
prependOnceListener(event: "setup", listener: (settings: ClusterSettings) => void): this;
}
const cluster: Cluster;
export default cluster;
}
declare module "node:cluster" {
export * from "cluster";
export { default as default } from "cluster";
}
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// Polyfills for the explicit resource management types added in TypeScript 5.2.
// TODO: remove once this package no longer supports TS 5.1, and replace with a
// <reference> to TypeScript's disposable library in index.d.ts.
interface SymbolConstructor {
readonly dispose: unique symbol;
readonly asyncDispose: unique symbol;
}
interface Disposable {
[Symbol.dispose](): void;
}
interface AsyncDisposable {
[Symbol.asyncDispose](): PromiseLike<void>;
}
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@@ -0,0 +1,9 @@
// Declaration files in this directory contain types relating to TypeScript library features
// that are not included in all TypeScript versions supported by DefinitelyTyped, but
// which can be made backwards-compatible without needing `typesVersions`.
// If adding declarations to this directory, please specify which versions of TypeScript require them,
// so that they can be removed when no longer needed.
/// <reference path="disposable.d.ts" />
/// <reference path="indexable.d.ts" />
/// <reference path="iterators.d.ts" />
+23
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@@ -0,0 +1,23 @@
// Polyfill for ES2022's .at() method on string/array prototypes, added to TypeScript in 4.6.
// TODO: these methods are not used within @types/node, and should be removed at the next
// major @types/node version; users should include the es2022 TypeScript libraries
// if they need these features.
interface RelativeIndexable<T> {
at(index: number): T | undefined;
}
interface String extends RelativeIndexable<string> {}
interface Array<T> extends RelativeIndexable<T> {}
interface ReadonlyArray<T> extends RelativeIndexable<T> {}
interface Int8Array extends RelativeIndexable<number> {}
interface Uint8Array extends RelativeIndexable<number> {}
interface Uint8ClampedArray extends RelativeIndexable<number> {}
interface Int16Array extends RelativeIndexable<number> {}
interface Uint16Array extends RelativeIndexable<number> {}
interface Int32Array extends RelativeIndexable<number> {}
interface Uint32Array extends RelativeIndexable<number> {}
interface Float32Array extends RelativeIndexable<number> {}
interface Float64Array extends RelativeIndexable<number> {}
interface BigInt64Array extends RelativeIndexable<bigint> {}
interface BigUint64Array extends RelativeIndexable<bigint> {}
+21
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// Backwards-compatible iterator interfaces, augmented with iterator helper methods by lib.esnext.iterator in TypeScript 5.6.
// The IterableIterator interface does not contain these methods, which creates assignability issues in places where IteratorObjects
// are expected (eg. DOM-compatible APIs) if lib.esnext.iterator is loaded.
// Also ensures that iterators returned by the Node API, which inherit from Iterator.prototype, correctly expose the iterator helper methods
// if lib.esnext.iterator is loaded.
// TODO: remove once this package no longer supports TS 5.5, and replace NodeJS.BuiltinIteratorReturn with BuiltinIteratorReturn.
// Placeholders for TS <5.6
interface IteratorObject<T, TReturn, TNext> {}
interface AsyncIteratorObject<T, TReturn, TNext> {}
declare namespace NodeJS {
// Populate iterator methods for TS <5.6
interface Iterator<T, TReturn, TNext> extends globalThis.Iterator<T, TReturn, TNext> {}
interface AsyncIterator<T, TReturn, TNext> extends globalThis.AsyncIterator<T, TReturn, TNext> {}
// Polyfill for TS 5.6's instrinsic BuiltinIteratorReturn type, required for DOM-compatible iterators
type BuiltinIteratorReturn = ReturnType<any[][typeof Symbol.iterator]> extends
globalThis.Iterator<any, infer TReturn> ? TReturn
: any;
}
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/**
* The `node:console` module provides a simple debugging console that is similar to
* the JavaScript console mechanism provided by web browsers.
*
* The module exports two specific components:
*
* * A `Console` class with methods such as `console.log()`, `console.error()`, and `console.warn()` that can be used to write to any Node.js stream.
* * A global `console` instance configured to write to [`process.stdout`](https://nodejs.org/docs/latest-v22.x/api/process.html#processstdout) and
* [`process.stderr`](https://nodejs.org/docs/latest-v22.x/api/process.html#processstderr). The global `console` can be used without importing the `node:console` module.
*
* _**Warning**_: The global console object's methods are neither consistently
* synchronous like the browser APIs they resemble, nor are they consistently
* asynchronous like all other Node.js streams. See the [`note on process I/O`](https://nodejs.org/docs/latest-v22.x/api/process.html#a-note-on-process-io) for
* more information.
*
* Example using the global `console`:
*
* ```js
* console.log('hello world');
* // Prints: hello world, to stdout
* console.log('hello %s', 'world');
* // Prints: hello world, to stdout
* console.error(new Error('Whoops, something bad happened'));
* // Prints error message and stack trace to stderr:
* // Error: Whoops, something bad happened
* // at [eval]:5:15
* // at Script.runInThisContext (node:vm:132:18)
* // at Object.runInThisContext (node:vm:309:38)
* // at node:internal/process/execution:77:19
* // at [eval]-wrapper:6:22
* // at evalScript (node:internal/process/execution:76:60)
* // at node:internal/main/eval_string:23:3
*
* const name = 'Will Robinson';
* console.warn(`Danger ${name}! Danger!`);
* // Prints: Danger Will Robinson! Danger!, to stderr
* ```
*
* Example using the `Console` class:
*
* ```js
* const out = getStreamSomehow();
* const err = getStreamSomehow();
* const myConsole = new console.Console(out, err);
*
* myConsole.log('hello world');
* // Prints: hello world, to out
* myConsole.log('hello %s', 'world');
* // Prints: hello world, to out
* myConsole.error(new Error('Whoops, something bad happened'));
* // Prints: [Error: Whoops, something bad happened], to err
*
* const name = 'Will Robinson';
* myConsole.warn(`Danger ${name}! Danger!`);
* // Prints: Danger Will Robinson! Danger!, to err
* ```
* @see [source](https://github.com/nodejs/node/blob/v22.x/lib/console.js)
*/
declare module "console" {
import console = require("node:console");
export = console;
}
declare module "node:console" {
import { InspectOptions } from "node:util";
global {
// This needs to be global to avoid TS2403 in case lib.dom.d.ts is present in the same build
interface Console {
Console: console.ConsoleConstructor;
/**
* `console.assert()` writes a message if `value` is [falsy](https://developer.mozilla.org/en-US/docs/Glossary/Falsy) or omitted. It only
* writes a message and does not otherwise affect execution. The output always
* starts with `"Assertion failed"`. If provided, `message` is formatted using
* [`util.format()`](https://nodejs.org/docs/latest-v22.x/api/util.html#utilformatformat-args).
*
* If `value` is [truthy](https://developer.mozilla.org/en-US/docs/Glossary/Truthy), nothing happens.
*
* ```js
* console.assert(true, 'does nothing');
*
* console.assert(false, 'Whoops %s work', 'didn\'t');
* // Assertion failed: Whoops didn't work
*
* console.assert();
* // Assertion failed
* ```
* @since v0.1.101
* @param value The value tested for being truthy.
* @param message All arguments besides `value` are used as error message.
*/
assert(value: any, message?: string, ...optionalParams: any[]): void;
/**
* When `stdout` is a TTY, calling `console.clear()` will attempt to clear the
* TTY. When `stdout` is not a TTY, this method does nothing.
*
* The specific operation of `console.clear()` can vary across operating systems
* and terminal types. For most Linux operating systems, `console.clear()` operates similarly to the `clear` shell command. On Windows, `console.clear()` will clear only the output in the
* current terminal viewport for the Node.js
* binary.
* @since v8.3.0
*/
clear(): void;
/**
* Maintains an internal counter specific to `label` and outputs to `stdout` the
* number of times `console.count()` has been called with the given `label`.
*
* ```js
* > console.count()
* default: 1
* undefined
* > console.count('default')
* default: 2
* undefined
* > console.count('abc')
* abc: 1
* undefined
* > console.count('xyz')
* xyz: 1
* undefined
* > console.count('abc')
* abc: 2
* undefined
* > console.count()
* default: 3
* undefined
* >
* ```
* @since v8.3.0
* @param [label='default'] The display label for the counter.
*/
count(label?: string): void;
/**
* Resets the internal counter specific to `label`.
*
* ```js
* > console.count('abc');
* abc: 1
* undefined
* > console.countReset('abc');
* undefined
* > console.count('abc');
* abc: 1
* undefined
* >
* ```
* @since v8.3.0
* @param [label='default'] The display label for the counter.
*/
countReset(label?: string): void;
/**
* The `console.debug()` function is an alias for {@link log}.
* @since v8.0.0
*/
debug(message?: any, ...optionalParams: any[]): void;
/**
* Uses [`util.inspect()`](https://nodejs.org/docs/latest-v22.x/api/util.html#utilinspectobject-options) on `obj` and prints the resulting string to `stdout`.
* This function bypasses any custom `inspect()` function defined on `obj`.
* @since v0.1.101
*/
dir(obj: any, options?: InspectOptions): void;
/**
* This method calls `console.log()` passing it the arguments received.
* This method does not produce any XML formatting.
* @since v8.0.0
*/
dirxml(...data: any[]): void;
/**
* Prints to `stderr` with newline. Multiple arguments can be passed, with the
* first used as the primary message and all additional used as substitution
* values similar to [`printf(3)`](http://man7.org/linux/man-pages/man3/printf.3.html)
* (the arguments are all passed to [`util.format()`](https://nodejs.org/docs/latest-v22.x/api/util.html#utilformatformat-args)).
*
* ```js
* const code = 5;
* console.error('error #%d', code);
* // Prints: error #5, to stderr
* console.error('error', code);
* // Prints: error 5, to stderr
* ```
*
* If formatting elements (e.g. `%d`) are not found in the first string then
* [`util.inspect()`](https://nodejs.org/docs/latest-v22.x/api/util.html#utilinspectobject-options) is called on each argument and the
* resulting string values are concatenated. See [`util.format()`](https://nodejs.org/docs/latest-v22.x/api/util.html#utilformatformat-args)
* for more information.
* @since v0.1.100
*/
error(message?: any, ...optionalParams: any[]): void;
/**
* Increases indentation of subsequent lines by spaces for `groupIndentation` length.
*
* If one or more `label`s are provided, those are printed first without the
* additional indentation.
* @since v8.5.0
*/
group(...label: any[]): void;
/**
* An alias for {@link group}.
* @since v8.5.0
*/
groupCollapsed(...label: any[]): void;
/**
* Decreases indentation of subsequent lines by spaces for `groupIndentation` length.
* @since v8.5.0
*/
groupEnd(): void;
/**
* The `console.info()` function is an alias for {@link log}.
* @since v0.1.100
*/
info(message?: any, ...optionalParams: any[]): void;
/**
* Prints to `stdout` with newline. Multiple arguments can be passed, with the
* first used as the primary message and all additional used as substitution
* values similar to [`printf(3)`](http://man7.org/linux/man-pages/man3/printf.3.html)
* (the arguments are all passed to [`util.format()`](https://nodejs.org/docs/latest-v22.x/api/util.html#utilformatformat-args)).
*
* ```js
* const count = 5;
* console.log('count: %d', count);
* // Prints: count: 5, to stdout
* console.log('count:', count);
* // Prints: count: 5, to stdout
* ```
*
* See [`util.format()`](https://nodejs.org/docs/latest-v22.x/api/util.html#utilformatformat-args) for more information.
* @since v0.1.100
*/
log(message?: any, ...optionalParams: any[]): void;
/**
* Try to construct a table with the columns of the properties of `tabularData` (or use `properties`) and rows of `tabularData` and log it. Falls back to just
* logging the argument if it can't be parsed as tabular.
*
* ```js
* // These can't be parsed as tabular data
* console.table(Symbol());
* // Symbol()
*
* console.table(undefined);
* // undefined
*
* console.table([{ a: 1, b: 'Y' }, { a: 'Z', b: 2 }]);
* // ┌─────────┬─────┬─────┐
* // │ (index) │ a │ b │
* // ├─────────┼─────┼─────┤
* // │ 0 │ 1 │ 'Y' │
* // │ 1 │ 'Z' │ 2 │
* // └─────────┴─────┴─────┘
*
* console.table([{ a: 1, b: 'Y' }, { a: 'Z', b: 2 }], ['a']);
* // ┌─────────┬─────┐
* // │ (index) │ a │
* // ├─────────┼─────┤
* // │ 0 │ 1 │
* // │ 1 │ 'Z' │
* // └─────────┴─────┘
* ```
* @since v10.0.0
* @param properties Alternate properties for constructing the table.
*/
table(tabularData: any, properties?: readonly string[]): void;
/**
* Starts a timer that can be used to compute the duration of an operation. Timers
* are identified by a unique `label`. Use the same `label` when calling {@link timeEnd} to stop the timer and output the elapsed time in
* suitable time units to `stdout`. For example, if the elapsed
* time is 3869ms, `console.timeEnd()` displays "3.869s".
* @since v0.1.104
* @param [label='default']
*/
time(label?: string): void;
/**
* Stops a timer that was previously started by calling {@link time} and
* prints the result to `stdout`:
*
* ```js
* console.time('bunch-of-stuff');
* // Do a bunch of stuff.
* console.timeEnd('bunch-of-stuff');
* // Prints: bunch-of-stuff: 225.438ms
* ```
* @since v0.1.104
* @param [label='default']
*/
timeEnd(label?: string): void;
/**
* For a timer that was previously started by calling {@link time}, prints
* the elapsed time and other `data` arguments to `stdout`:
*
* ```js
* console.time('process');
* const value = expensiveProcess1(); // Returns 42
* console.timeLog('process', value);
* // Prints "process: 365.227ms 42".
* doExpensiveProcess2(value);
* console.timeEnd('process');
* ```
* @since v10.7.0
* @param [label='default']
*/
timeLog(label?: string, ...data: any[]): void;
/**
* Prints to `stderr` the string `'Trace: '`, followed by the [`util.format()`](https://nodejs.org/docs/latest-v22.x/api/util.html#utilformatformat-args)
* formatted message and stack trace to the current position in the code.
*
* ```js
* console.trace('Show me');
* // Prints: (stack trace will vary based on where trace is called)
* // Trace: Show me
* // at repl:2:9
* // at REPLServer.defaultEval (repl.js:248:27)
* // at bound (domain.js:287:14)
* // at REPLServer.runBound [as eval] (domain.js:300:12)
* // at REPLServer.<anonymous> (repl.js:412:12)
* // at emitOne (events.js:82:20)
* // at REPLServer.emit (events.js:169:7)
* // at REPLServer.Interface._onLine (readline.js:210:10)
* // at REPLServer.Interface._line (readline.js:549:8)
* // at REPLServer.Interface._ttyWrite (readline.js:826:14)
* ```
* @since v0.1.104
*/
trace(message?: any, ...optionalParams: any[]): void;
/**
* The `console.warn()` function is an alias for {@link error}.
* @since v0.1.100
*/
warn(message?: any, ...optionalParams: any[]): void;
// --- Inspector mode only ---
/**
* This method does not display anything unless used in the inspector. The `console.profile()`
* method starts a JavaScript CPU profile with an optional label until {@link profileEnd}
* is called. The profile is then added to the Profile panel of the inspector.
*
* ```js
* console.profile('MyLabel');
* // Some code
* console.profileEnd('MyLabel');
* // Adds the profile 'MyLabel' to the Profiles panel of the inspector.
* ```
* @since v8.0.0
*/
profile(label?: string): void;
/**
* This method does not display anything unless used in the inspector. Stops the current
* JavaScript CPU profiling session if one has been started and prints the report to the
* Profiles panel of the inspector. See {@link profile} for an example.
*
* If this method is called without a label, the most recently started profile is stopped.
* @since v8.0.0
*/
profileEnd(label?: string): void;
/**
* This method does not display anything unless used in the inspector. The `console.timeStamp()`
* method adds an event with the label `'label'` to the Timeline panel of the inspector.
* @since v8.0.0
*/
timeStamp(label?: string): void;
}
/**
* The `console` module provides a simple debugging console that is similar to the
* JavaScript console mechanism provided by web browsers.
*
* The module exports two specific components:
*
* * A `Console` class with methods such as `console.log()`, `console.error()` and `console.warn()` that can be used to write to any Node.js stream.
* * A global `console` instance configured to write to [`process.stdout`](https://nodejs.org/docs/latest-v22.x/api/process.html#processstdout) and
* [`process.stderr`](https://nodejs.org/docs/latest-v22.x/api/process.html#processstderr). The global `console` can be used without importing the `node:console` module.
*
* _**Warning**_: The global console object's methods are neither consistently
* synchronous like the browser APIs they resemble, nor are they consistently
* asynchronous like all other Node.js streams. See the [`note on process I/O`](https://nodejs.org/docs/latest-v22.x/api/process.html#a-note-on-process-io) for
* more information.
*
* Example using the global `console`:
*
* ```js
* console.log('hello world');
* // Prints: hello world, to stdout
* console.log('hello %s', 'world');
* // Prints: hello world, to stdout
* console.error(new Error('Whoops, something bad happened'));
* // Prints error message and stack trace to stderr:
* // Error: Whoops, something bad happened
* // at [eval]:5:15
* // at Script.runInThisContext (node:vm:132:18)
* // at Object.runInThisContext (node:vm:309:38)
* // at node:internal/process/execution:77:19
* // at [eval]-wrapper:6:22
* // at evalScript (node:internal/process/execution:76:60)
* // at node:internal/main/eval_string:23:3
*
* const name = 'Will Robinson';
* console.warn(`Danger ${name}! Danger!`);
* // Prints: Danger Will Robinson! Danger!, to stderr
* ```
*
* Example using the `Console` class:
*
* ```js
* const out = getStreamSomehow();
* const err = getStreamSomehow();
* const myConsole = new console.Console(out, err);
*
* myConsole.log('hello world');
* // Prints: hello world, to out
* myConsole.log('hello %s', 'world');
* // Prints: hello world, to out
* myConsole.error(new Error('Whoops, something bad happened'));
* // Prints: [Error: Whoops, something bad happened], to err
*
* const name = 'Will Robinson';
* myConsole.warn(`Danger ${name}! Danger!`);
* // Prints: Danger Will Robinson! Danger!, to err
* ```
* @see [source](https://github.com/nodejs/node/blob/v22.x/lib/console.js)
*/
namespace console {
interface ConsoleConstructorOptions {
stdout: NodeJS.WritableStream;
stderr?: NodeJS.WritableStream | undefined;
/**
* Ignore errors when writing to the underlying streams.
* @default true
*/
ignoreErrors?: boolean | undefined;
/**
* Set color support for this `Console` instance. Setting to true enables coloring while inspecting
* values. Setting to `false` disables coloring while inspecting values. Setting to `'auto'` makes color
* support depend on the value of the `isTTY` property and the value returned by `getColorDepth()` on the
* respective stream. This option can not be used, if `inspectOptions.colors` is set as well.
* @default auto
*/
colorMode?: boolean | "auto" | undefined;
/**
* Specifies options that are passed along to
* [`util.inspect()`](https://nodejs.org/docs/latest-v22.x/api/util.html#utilinspectobject-options).
*/
inspectOptions?: InspectOptions | undefined;
/**
* Set group indentation.
* @default 2
*/
groupIndentation?: number | undefined;
}
interface ConsoleConstructor {
prototype: Console;
new(stdout: NodeJS.WritableStream, stderr?: NodeJS.WritableStream, ignoreErrors?: boolean): Console;
new(options: ConsoleConstructorOptions): Console;
}
}
var console: Console;
}
export = globalThis.console;
}
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/** @deprecated since v6.3.0 - use constants property exposed by the relevant module instead. */
declare module "constants" {
import { constants as osConstants, SignalConstants } from "node:os";
import { constants as cryptoConstants } from "node:crypto";
import { constants as fsConstants } from "node:fs";
const exp:
& typeof osConstants.errno
& typeof osConstants.priority
& SignalConstants
& typeof cryptoConstants
& typeof fsConstants;
export = exp;
}
declare module "node:constants" {
import constants = require("constants");
export = constants;
}
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/**
* The `node:dgram` module provides an implementation of UDP datagram sockets.
*
* ```js
* import dgram from 'node:dgram';
*
* const server = dgram.createSocket('udp4');
*
* server.on('error', (err) => {
* console.error(`server error:\n${err.stack}`);
* server.close();
* });
*
* server.on('message', (msg, rinfo) => {
* console.log(`server got: ${msg} from ${rinfo.address}:${rinfo.port}`);
* });
*
* server.on('listening', () => {
* const address = server.address();
* console.log(`server listening ${address.address}:${address.port}`);
* });
*
* server.bind(41234);
* // Prints: server listening 0.0.0.0:41234
* ```
* @see [source](https://github.com/nodejs/node/blob/v22.x/lib/dgram.js)
*/
declare module "dgram" {
import { AddressInfo } from "node:net";
import * as dns from "node:dns";
import { Abortable, EventEmitter } from "node:events";
interface RemoteInfo {
address: string;
family: "IPv4" | "IPv6";
port: number;
size: number;
}
interface BindOptions {
port?: number | undefined;
address?: string | undefined;
exclusive?: boolean | undefined;
fd?: number | undefined;
}
type SocketType = "udp4" | "udp6";
interface SocketOptions extends Abortable {
type: SocketType;
reuseAddr?: boolean | undefined;
/**
* @default false
*/
ipv6Only?: boolean | undefined;
recvBufferSize?: number | undefined;
sendBufferSize?: number | undefined;
lookup?:
| ((
hostname: string,
options: dns.LookupOneOptions,
callback: (err: NodeJS.ErrnoException | null, address: string, family: number) => void,
) => void)
| undefined;
}
/**
* Creates a `dgram.Socket` object. Once the socket is created, calling `socket.bind()` will instruct the socket to begin listening for datagram
* messages. When `address` and `port` are not passed to `socket.bind()` the
* method will bind the socket to the "all interfaces" address on a random port
* (it does the right thing for both `udp4` and `udp6` sockets). The bound address
* and port can be retrieved using `socket.address().address` and `socket.address().port`.
*
* If the `signal` option is enabled, calling `.abort()` on the corresponding `AbortController` is similar to calling `.close()` on the socket:
*
* ```js
* const controller = new AbortController();
* const { signal } = controller;
* const server = dgram.createSocket({ type: 'udp4', signal });
* server.on('message', (msg, rinfo) => {
* console.log(`server got: ${msg} from ${rinfo.address}:${rinfo.port}`);
* });
* // Later, when you want to close the server.
* controller.abort();
* ```
* @since v0.11.13
* @param options Available options are:
* @param callback Attached as a listener for `'message'` events. Optional.
*/
function createSocket(type: SocketType, callback?: (msg: Buffer, rinfo: RemoteInfo) => void): Socket;
function createSocket(options: SocketOptions, callback?: (msg: Buffer, rinfo: RemoteInfo) => void): Socket;
/**
* Encapsulates the datagram functionality.
*
* New instances of `dgram.Socket` are created using {@link createSocket}.
* The `new` keyword is not to be used to create `dgram.Socket` instances.
* @since v0.1.99
*/
class Socket extends EventEmitter {
/**
* Tells the kernel to join a multicast group at the given `multicastAddress` and `multicastInterface` using the `IP_ADD_MEMBERSHIP` socket option. If the `multicastInterface` argument is not
* specified, the operating system will choose
* one interface and will add membership to it. To add membership to every
* available interface, call `addMembership` multiple times, once per interface.
*
* When called on an unbound socket, this method will implicitly bind to a random
* port, listening on all interfaces.
*
* When sharing a UDP socket across multiple `cluster` workers, the`socket.addMembership()` function must be called only once or an`EADDRINUSE` error will occur:
*
* ```js
* import cluster from 'node:cluster';
* import dgram from 'node:dgram';
*
* if (cluster.isPrimary) {
* cluster.fork(); // Works ok.
* cluster.fork(); // Fails with EADDRINUSE.
* } else {
* const s = dgram.createSocket('udp4');
* s.bind(1234, () => {
* s.addMembership('224.0.0.114');
* });
* }
* ```
* @since v0.6.9
*/
addMembership(multicastAddress: string, multicastInterface?: string): void;
/**
* Returns an object containing the address information for a socket.
* For UDP sockets, this object will contain `address`, `family`, and `port` properties.
*
* This method throws `EBADF` if called on an unbound socket.
* @since v0.1.99
*/
address(): AddressInfo;
/**
* For UDP sockets, causes the `dgram.Socket` to listen for datagram
* messages on a named `port` and optional `address`. If `port` is not
* specified or is `0`, the operating system will attempt to bind to a
* random port. If `address` is not specified, the operating system will
* attempt to listen on all addresses. Once binding is complete, a `'listening'` event is emitted and the optional `callback` function is
* called.
*
* Specifying both a `'listening'` event listener and passing a `callback` to the `socket.bind()` method is not harmful but not very
* useful.
*
* A bound datagram socket keeps the Node.js process running to receive
* datagram messages.
*
* If binding fails, an `'error'` event is generated. In rare case (e.g.
* attempting to bind with a closed socket), an `Error` may be thrown.
*
* Example of a UDP server listening on port 41234:
*
* ```js
* import dgram from 'node:dgram';
*
* const server = dgram.createSocket('udp4');
*
* server.on('error', (err) => {
* console.error(`server error:\n${err.stack}`);
* server.close();
* });
*
* server.on('message', (msg, rinfo) => {
* console.log(`server got: ${msg} from ${rinfo.address}:${rinfo.port}`);
* });
*
* server.on('listening', () => {
* const address = server.address();
* console.log(`server listening ${address.address}:${address.port}`);
* });
*
* server.bind(41234);
* // Prints: server listening 0.0.0.0:41234
* ```
* @since v0.1.99
* @param callback with no parameters. Called when binding is complete.
*/
bind(port?: number, address?: string, callback?: () => void): this;
bind(port?: number, callback?: () => void): this;
bind(callback?: () => void): this;
bind(options: BindOptions, callback?: () => void): this;
/**
* Close the underlying socket and stop listening for data on it. If a callback is
* provided, it is added as a listener for the `'close'` event.
* @since v0.1.99
* @param callback Called when the socket has been closed.
*/
close(callback?: () => void): this;
/**
* Associates the `dgram.Socket` to a remote address and port. Every
* message sent by this handle is automatically sent to that destination. Also,
* the socket will only receive messages from that remote peer.
* Trying to call `connect()` on an already connected socket will result
* in an `ERR_SOCKET_DGRAM_IS_CONNECTED` exception. If `address` is not
* provided, `'127.0.0.1'` (for `udp4` sockets) or `'::1'` (for `udp6` sockets)
* will be used by default. Once the connection is complete, a `'connect'` event
* is emitted and the optional `callback` function is called. In case of failure,
* the `callback` is called or, failing this, an `'error'` event is emitted.
* @since v12.0.0
* @param callback Called when the connection is completed or on error.
*/
connect(port: number, address?: string, callback?: () => void): void;
connect(port: number, callback: () => void): void;
/**
* A synchronous function that disassociates a connected `dgram.Socket` from
* its remote address. Trying to call `disconnect()` on an unbound or already
* disconnected socket will result in an `ERR_SOCKET_DGRAM_NOT_CONNECTED` exception.
* @since v12.0.0
*/
disconnect(): void;
/**
* Instructs the kernel to leave a multicast group at `multicastAddress` using the `IP_DROP_MEMBERSHIP` socket option. This method is automatically called by the
* kernel when the socket is closed or the process terminates, so most apps will
* never have reason to call this.
*
* If `multicastInterface` is not specified, the operating system will attempt to
* drop membership on all valid interfaces.
* @since v0.6.9
*/
dropMembership(multicastAddress: string, multicastInterface?: string): void;
/**
* This method throws `ERR_SOCKET_BUFFER_SIZE` if called on an unbound socket.
* @since v8.7.0
* @return the `SO_RCVBUF` socket receive buffer size in bytes.
*/
getRecvBufferSize(): number;
/**
* This method throws `ERR_SOCKET_BUFFER_SIZE` if called on an unbound socket.
* @since v8.7.0
* @return the `SO_SNDBUF` socket send buffer size in bytes.
*/
getSendBufferSize(): number;
/**
* @since v18.8.0, v16.19.0
* @return Number of bytes queued for sending.
*/
getSendQueueSize(): number;
/**
* @since v18.8.0, v16.19.0
* @return Number of send requests currently in the queue awaiting to be processed.
*/
getSendQueueCount(): number;
/**
* By default, binding a socket will cause it to block the Node.js process from
* exiting as long as the socket is open. The `socket.unref()` method can be used
* to exclude the socket from the reference counting that keeps the Node.js
* process active. The `socket.ref()` method adds the socket back to the reference
* counting and restores the default behavior.
*
* Calling `socket.ref()` multiples times will have no additional effect.
*
* The `socket.ref()` method returns a reference to the socket so calls can be
* chained.
* @since v0.9.1
*/
ref(): this;
/**
* Returns an object containing the `address`, `family`, and `port` of the remote
* endpoint. This method throws an `ERR_SOCKET_DGRAM_NOT_CONNECTED` exception
* if the socket is not connected.
* @since v12.0.0
*/
remoteAddress(): AddressInfo;
/**
* Broadcasts a datagram on the socket.
* For connectionless sockets, the destination `port` and `address` must be
* specified. Connected sockets, on the other hand, will use their associated
* remote endpoint, so the `port` and `address` arguments must not be set.
*
* The `msg` argument contains the message to be sent.
* Depending on its type, different behavior can apply. If `msg` is a `Buffer`,
* any `TypedArray` or a `DataView`,
* the `offset` and `length` specify the offset within the `Buffer` where the
* message begins and the number of bytes in the message, respectively.
* If `msg` is a `String`, then it is automatically converted to a `Buffer` with `'utf8'` encoding. With messages that
* contain multi-byte characters, `offset` and `length` will be calculated with
* respect to `byte length` and not the character position.
* If `msg` is an array, `offset` and `length` must not be specified.
*
* The `address` argument is a string. If the value of `address` is a host name,
* DNS will be used to resolve the address of the host. If `address` is not
* provided or otherwise nullish, `'127.0.0.1'` (for `udp4` sockets) or `'::1'` (for `udp6` sockets) will be used by default.
*
* If the socket has not been previously bound with a call to `bind`, the socket
* is assigned a random port number and is bound to the "all interfaces" address
* (`'0.0.0.0'` for `udp4` sockets, `'::0'` for `udp6` sockets.)
*
* An optional `callback` function may be specified to as a way of reporting
* DNS errors or for determining when it is safe to reuse the `buf` object.
* DNS lookups delay the time to send for at least one tick of the
* Node.js event loop.
*
* The only way to know for sure that the datagram has been sent is by using a `callback`. If an error occurs and a `callback` is given, the error will be
* passed as the first argument to the `callback`. If a `callback` is not given,
* the error is emitted as an `'error'` event on the `socket` object.
*
* Offset and length are optional but both _must_ be set if either are used.
* They are supported only when the first argument is a `Buffer`, a `TypedArray`,
* or a `DataView`.
*
* This method throws `ERR_SOCKET_BAD_PORT` if called on an unbound socket.
*
* Example of sending a UDP packet to a port on `localhost`;
*
* ```js
* import dgram from 'node:dgram';
* import { Buffer } from 'node:buffer';
*
* const message = Buffer.from('Some bytes');
* const client = dgram.createSocket('udp4');
* client.send(message, 41234, 'localhost', (err) => {
* client.close();
* });
* ```
*
* Example of sending a UDP packet composed of multiple buffers to a port on`127.0.0.1`;
*
* ```js
* import dgram from 'node:dgram';
* import { Buffer } from 'node:buffer';
*
* const buf1 = Buffer.from('Some ');
* const buf2 = Buffer.from('bytes');
* const client = dgram.createSocket('udp4');
* client.send([buf1, buf2], 41234, (err) => {
* client.close();
* });
* ```
*
* Sending multiple buffers might be faster or slower depending on the
* application and operating system. Run benchmarks to
* determine the optimal strategy on a case-by-case basis. Generally speaking,
* however, sending multiple buffers is faster.
*
* Example of sending a UDP packet using a socket connected to a port on `localhost`:
*
* ```js
* import dgram from 'node:dgram';
* import { Buffer } from 'node:buffer';
*
* const message = Buffer.from('Some bytes');
* const client = dgram.createSocket('udp4');
* client.connect(41234, 'localhost', (err) => {
* client.send(message, (err) => {
* client.close();
* });
* });
* ```
* @since v0.1.99
* @param msg Message to be sent.
* @param offset Offset in the buffer where the message starts.
* @param length Number of bytes in the message.
* @param port Destination port.
* @param address Destination host name or IP address.
* @param callback Called when the message has been sent.
*/
send(
msg: string | Uint8Array | readonly any[],
port?: number,
address?: string,
callback?: (error: Error | null, bytes: number) => void,
): void;
send(
msg: string | Uint8Array | readonly any[],
port?: number,
callback?: (error: Error | null, bytes: number) => void,
): void;
send(
msg: string | Uint8Array | readonly any[],
callback?: (error: Error | null, bytes: number) => void,
): void;
send(
msg: string | Uint8Array,
offset: number,
length: number,
port?: number,
address?: string,
callback?: (error: Error | null, bytes: number) => void,
): void;
send(
msg: string | Uint8Array,
offset: number,
length: number,
port?: number,
callback?: (error: Error | null, bytes: number) => void,
): void;
send(
msg: string | Uint8Array,
offset: number,
length: number,
callback?: (error: Error | null, bytes: number) => void,
): void;
/**
* Sets or clears the `SO_BROADCAST` socket option. When set to `true`, UDP
* packets may be sent to a local interface's broadcast address.
*
* This method throws `EBADF` if called on an unbound socket.
* @since v0.6.9
*/
setBroadcast(flag: boolean): void;
/**
* _All references to scope in this section are referring to [IPv6 Zone Indices](https://en.wikipedia.org/wiki/IPv6_address#Scoped_literal_IPv6_addresses), which are defined by [RFC
* 4007](https://tools.ietf.org/html/rfc4007). In string form, an IP_
* _with a scope index is written as `'IP%scope'` where scope is an interface name_
* _or interface number._
*
* Sets the default outgoing multicast interface of the socket to a chosen
* interface or back to system interface selection. The `multicastInterface` must
* be a valid string representation of an IP from the socket's family.
*
* For IPv4 sockets, this should be the IP configured for the desired physical
* interface. All packets sent to multicast on the socket will be sent on the
* interface determined by the most recent successful use of this call.
*
* For IPv6 sockets, `multicastInterface` should include a scope to indicate the
* interface as in the examples that follow. In IPv6, individual `send` calls can
* also use explicit scope in addresses, so only packets sent to a multicast
* address without specifying an explicit scope are affected by the most recent
* successful use of this call.
*
* This method throws `EBADF` if called on an unbound socket.
*
* #### Example: IPv6 outgoing multicast interface
*
* On most systems, where scope format uses the interface name:
*
* ```js
* const socket = dgram.createSocket('udp6');
*
* socket.bind(1234, () => {
* socket.setMulticastInterface('::%eth1');
* });
* ```
*
* On Windows, where scope format uses an interface number:
*
* ```js
* const socket = dgram.createSocket('udp6');
*
* socket.bind(1234, () => {
* socket.setMulticastInterface('::%2');
* });
* ```
*
* #### Example: IPv4 outgoing multicast interface
*
* All systems use an IP of the host on the desired physical interface:
*
* ```js
* const socket = dgram.createSocket('udp4');
*
* socket.bind(1234, () => {
* socket.setMulticastInterface('10.0.0.2');
* });
* ```
* @since v8.6.0
*/
setMulticastInterface(multicastInterface: string): void;
/**
* Sets or clears the `IP_MULTICAST_LOOP` socket option. When set to `true`,
* multicast packets will also be received on the local interface.
*
* This method throws `EBADF` if called on an unbound socket.
* @since v0.3.8
*/
setMulticastLoopback(flag: boolean): boolean;
/**
* Sets the `IP_MULTICAST_TTL` socket option. While TTL generally stands for
* "Time to Live", in this context it specifies the number of IP hops that a
* packet is allowed to travel through, specifically for multicast traffic. Each
* router or gateway that forwards a packet decrements the TTL. If the TTL is
* decremented to 0 by a router, it will not be forwarded.
*
* The `ttl` argument may be between 0 and 255\. The default on most systems is `1`.
*
* This method throws `EBADF` if called on an unbound socket.
* @since v0.3.8
*/
setMulticastTTL(ttl: number): number;
/**
* Sets the `SO_RCVBUF` socket option. Sets the maximum socket receive buffer
* in bytes.
*
* This method throws `ERR_SOCKET_BUFFER_SIZE` if called on an unbound socket.
* @since v8.7.0
*/
setRecvBufferSize(size: number): void;
/**
* Sets the `SO_SNDBUF` socket option. Sets the maximum socket send buffer
* in bytes.
*
* This method throws `ERR_SOCKET_BUFFER_SIZE` if called on an unbound socket.
* @since v8.7.0
*/
setSendBufferSize(size: number): void;
/**
* Sets the `IP_TTL` socket option. While TTL generally stands for "Time to Live",
* in this context it specifies the number of IP hops that a packet is allowed to
* travel through. Each router or gateway that forwards a packet decrements the
* TTL. If the TTL is decremented to 0 by a router, it will not be forwarded.
* Changing TTL values is typically done for network probes or when multicasting.
*
* The `ttl` argument may be between 1 and 255\. The default on most systems
* is 64.
*
* This method throws `EBADF` if called on an unbound socket.
* @since v0.1.101
*/
setTTL(ttl: number): number;
/**
* By default, binding a socket will cause it to block the Node.js process from
* exiting as long as the socket is open. The `socket.unref()` method can be used
* to exclude the socket from the reference counting that keeps the Node.js
* process active, allowing the process to exit even if the socket is still
* listening.
*
* Calling `socket.unref()` multiple times will have no additional effect.
*
* The `socket.unref()` method returns a reference to the socket so calls can be
* chained.
* @since v0.9.1
*/
unref(): this;
/**
* Tells the kernel to join a source-specific multicast channel at the given `sourceAddress` and `groupAddress`, using the `multicastInterface` with the `IP_ADD_SOURCE_MEMBERSHIP` socket
* option. If the `multicastInterface` argument
* is not specified, the operating system will choose one interface and will add
* membership to it. To add membership to every available interface, call `socket.addSourceSpecificMembership()` multiple times, once per interface.
*
* When called on an unbound socket, this method will implicitly bind to a random
* port, listening on all interfaces.
* @since v13.1.0, v12.16.0
*/
addSourceSpecificMembership(sourceAddress: string, groupAddress: string, multicastInterface?: string): void;
/**
* Instructs the kernel to leave a source-specific multicast channel at the given `sourceAddress` and `groupAddress` using the `IP_DROP_SOURCE_MEMBERSHIP` socket option. This method is
* automatically called by the kernel when the
* socket is closed or the process terminates, so most apps will never have
* reason to call this.
*
* If `multicastInterface` is not specified, the operating system will attempt to
* drop membership on all valid interfaces.
* @since v13.1.0, v12.16.0
*/
dropSourceSpecificMembership(sourceAddress: string, groupAddress: string, multicastInterface?: string): void;
/**
* events.EventEmitter
* 1. close
* 2. connect
* 3. error
* 4. listening
* 5. message
*/
addListener(event: string, listener: (...args: any[]) => void): this;
addListener(event: "close", listener: () => void): this;
addListener(event: "connect", listener: () => void): this;
addListener(event: "error", listener: (err: Error) => void): this;
addListener(event: "listening", listener: () => void): this;
addListener(event: "message", listener: (msg: Buffer, rinfo: RemoteInfo) => void): this;
emit(event: string | symbol, ...args: any[]): boolean;
emit(event: "close"): boolean;
emit(event: "connect"): boolean;
emit(event: "error", err: Error): boolean;
emit(event: "listening"): boolean;
emit(event: "message", msg: Buffer, rinfo: RemoteInfo): boolean;
on(event: string, listener: (...args: any[]) => void): this;
on(event: "close", listener: () => void): this;
on(event: "connect", listener: () => void): this;
on(event: "error", listener: (err: Error) => void): this;
on(event: "listening", listener: () => void): this;
on(event: "message", listener: (msg: Buffer, rinfo: RemoteInfo) => void): this;
once(event: string, listener: (...args: any[]) => void): this;
once(event: "close", listener: () => void): this;
once(event: "connect", listener: () => void): this;
once(event: "error", listener: (err: Error) => void): this;
once(event: "listening", listener: () => void): this;
once(event: "message", listener: (msg: Buffer, rinfo: RemoteInfo) => void): this;
prependListener(event: string, listener: (...args: any[]) => void): this;
prependListener(event: "close", listener: () => void): this;
prependListener(event: "connect", listener: () => void): this;
prependListener(event: "error", listener: (err: Error) => void): this;
prependListener(event: "listening", listener: () => void): this;
prependListener(event: "message", listener: (msg: Buffer, rinfo: RemoteInfo) => void): this;
prependOnceListener(event: string, listener: (...args: any[]) => void): this;
prependOnceListener(event: "close", listener: () => void): this;
prependOnceListener(event: "connect", listener: () => void): this;
prependOnceListener(event: "error", listener: (err: Error) => void): this;
prependOnceListener(event: "listening", listener: () => void): this;
prependOnceListener(event: "message", listener: (msg: Buffer, rinfo: RemoteInfo) => void): this;
/**
* Calls `socket.close()` and returns a promise that fulfills when the socket has closed.
* @since v20.5.0
*/
[Symbol.asyncDispose](): Promise<void>;
}
}
declare module "node:dgram" {
export * from "dgram";
}
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/**
* The `node:diagnostics_channel` module provides an API to create named channels
* to report arbitrary message data for diagnostics purposes.
*
* It can be accessed using:
*
* ```js
* import diagnostics_channel from 'node:diagnostics_channel';
* ```
*
* It is intended that a module writer wanting to report diagnostics messages
* will create one or many top-level channels to report messages through.
* Channels may also be acquired at runtime but it is not encouraged
* due to the additional overhead of doing so. Channels may be exported for
* convenience, but as long as the name is known it can be acquired anywhere.
*
* If you intend for your module to produce diagnostics data for others to
* consume it is recommended that you include documentation of what named
* channels are used along with the shape of the message data. Channel names
* should generally include the module name to avoid collisions with data from
* other modules.
* @since v15.1.0, v14.17.0
* @see [source](https://github.com/nodejs/node/blob/v22.x/lib/diagnostics_channel.js)
*/
declare module "diagnostics_channel" {
import { AsyncLocalStorage } from "node:async_hooks";
/**
* Check if there are active subscribers to the named channel. This is helpful if
* the message you want to send might be expensive to prepare.
*
* This API is optional but helpful when trying to publish messages from very
* performance-sensitive code.
*
* ```js
* import diagnostics_channel from 'node:diagnostics_channel';
*
* if (diagnostics_channel.hasSubscribers('my-channel')) {
* // There are subscribers, prepare and publish message
* }
* ```
* @since v15.1.0, v14.17.0
* @param name The channel name
* @return If there are active subscribers
*/
function hasSubscribers(name: string | symbol): boolean;
/**
* This is the primary entry-point for anyone wanting to publish to a named
* channel. It produces a channel object which is optimized to reduce overhead at
* publish time as much as possible.
*
* ```js
* import diagnostics_channel from 'node:diagnostics_channel';
*
* const channel = diagnostics_channel.channel('my-channel');
* ```
* @since v15.1.0, v14.17.0
* @param name The channel name
* @return The named channel object
*/
function channel(name: string | symbol): Channel;
type ChannelListener = (message: unknown, name: string | symbol) => void;
/**
* Register a message handler to subscribe to this channel. This message handler
* will be run synchronously whenever a message is published to the channel. Any
* errors thrown in the message handler will trigger an `'uncaughtException'`.
*
* ```js
* import diagnostics_channel from 'node:diagnostics_channel';
*
* diagnostics_channel.subscribe('my-channel', (message, name) => {
* // Received data
* });
* ```
* @since v18.7.0, v16.17.0
* @param name The channel name
* @param onMessage The handler to receive channel messages
*/
function subscribe(name: string | symbol, onMessage: ChannelListener): void;
/**
* Remove a message handler previously registered to this channel with {@link subscribe}.
*
* ```js
* import diagnostics_channel from 'node:diagnostics_channel';
*
* function onMessage(message, name) {
* // Received data
* }
*
* diagnostics_channel.subscribe('my-channel', onMessage);
*
* diagnostics_channel.unsubscribe('my-channel', onMessage);
* ```
* @since v18.7.0, v16.17.0
* @param name The channel name
* @param onMessage The previous subscribed handler to remove
* @return `true` if the handler was found, `false` otherwise.
*/
function unsubscribe(name: string | symbol, onMessage: ChannelListener): boolean;
/**
* Creates a `TracingChannel` wrapper for the given `TracingChannel Channels`. If a name is given, the corresponding tracing
* channels will be created in the form of `tracing:${name}:${eventType}` where `eventType` corresponds to the types of `TracingChannel Channels`.
*
* ```js
* import diagnostics_channel from 'node:diagnostics_channel';
*
* const channelsByName = diagnostics_channel.tracingChannel('my-channel');
*
* // or...
*
* const channelsByCollection = diagnostics_channel.tracingChannel({
* start: diagnostics_channel.channel('tracing:my-channel:start'),
* end: diagnostics_channel.channel('tracing:my-channel:end'),
* asyncStart: diagnostics_channel.channel('tracing:my-channel:asyncStart'),
* asyncEnd: diagnostics_channel.channel('tracing:my-channel:asyncEnd'),
* error: diagnostics_channel.channel('tracing:my-channel:error'),
* });
* ```
* @since v19.9.0
* @experimental
* @param nameOrChannels Channel name or object containing all the `TracingChannel Channels`
* @return Collection of channels to trace with
*/
function tracingChannel<
StoreType = unknown,
ContextType extends object = StoreType extends object ? StoreType : object,
>(
nameOrChannels: string | TracingChannelCollection<StoreType, ContextType>,
): TracingChannel<StoreType, ContextType>;
/**
* The class `Channel` represents an individual named channel within the data
* pipeline. It is used to track subscribers and to publish messages when there
* are subscribers present. It exists as a separate object to avoid channel
* lookups at publish time, enabling very fast publish speeds and allowing
* for heavy use while incurring very minimal cost. Channels are created with {@link channel}, constructing a channel directly
* with `new Channel(name)` is not supported.
* @since v15.1.0, v14.17.0
*/
class Channel<StoreType = unknown, ContextType = StoreType> {
readonly name: string | symbol;
/**
* Check if there are active subscribers to this channel. This is helpful if
* the message you want to send might be expensive to prepare.
*
* This API is optional but helpful when trying to publish messages from very
* performance-sensitive code.
*
* ```js
* import diagnostics_channel from 'node:diagnostics_channel';
*
* const channel = diagnostics_channel.channel('my-channel');
*
* if (channel.hasSubscribers) {
* // There are subscribers, prepare and publish message
* }
* ```
* @since v15.1.0, v14.17.0
*/
readonly hasSubscribers: boolean;
private constructor(name: string | symbol);
/**
* Publish a message to any subscribers to the channel. This will trigger
* message handlers synchronously so they will execute within the same context.
*
* ```js
* import diagnostics_channel from 'node:diagnostics_channel';
*
* const channel = diagnostics_channel.channel('my-channel');
*
* channel.publish({
* some: 'message',
* });
* ```
* @since v15.1.0, v14.17.0
* @param message The message to send to the channel subscribers
*/
publish(message: unknown): void;
/**
* Register a message handler to subscribe to this channel. This message handler
* will be run synchronously whenever a message is published to the channel. Any
* errors thrown in the message handler will trigger an `'uncaughtException'`.
*
* ```js
* import diagnostics_channel from 'node:diagnostics_channel';
*
* const channel = diagnostics_channel.channel('my-channel');
*
* channel.subscribe((message, name) => {
* // Received data
* });
* ```
* @since v15.1.0, v14.17.0
* @deprecated Since v18.7.0,v16.17.0 - Use {@link subscribe(name, onMessage)}
* @param onMessage The handler to receive channel messages
*/
subscribe(onMessage: ChannelListener): void;
/**
* Remove a message handler previously registered to this channel with `channel.subscribe(onMessage)`.
*
* ```js
* import diagnostics_channel from 'node:diagnostics_channel';
*
* const channel = diagnostics_channel.channel('my-channel');
*
* function onMessage(message, name) {
* // Received data
* }
*
* channel.subscribe(onMessage);
*
* channel.unsubscribe(onMessage);
* ```
* @since v15.1.0, v14.17.0
* @deprecated Since v18.7.0,v16.17.0 - Use {@link unsubscribe(name, onMessage)}
* @param onMessage The previous subscribed handler to remove
* @return `true` if the handler was found, `false` otherwise.
*/
unsubscribe(onMessage: ChannelListener): void;
/**
* When `channel.runStores(context, ...)` is called, the given context data
* will be applied to any store bound to the channel. If the store has already been
* bound the previous `transform` function will be replaced with the new one.
* The `transform` function may be omitted to set the given context data as the
* context directly.
*
* ```js
* import diagnostics_channel from 'node:diagnostics_channel';
* import { AsyncLocalStorage } from 'node:async_hooks';
*
* const store = new AsyncLocalStorage();
*
* const channel = diagnostics_channel.channel('my-channel');
*
* channel.bindStore(store, (data) => {
* return { data };
* });
* ```
* @since v19.9.0
* @experimental
* @param store The store to which to bind the context data
* @param transform Transform context data before setting the store context
*/
bindStore(store: AsyncLocalStorage<StoreType>, transform?: (context: ContextType) => StoreType): void;
/**
* Remove a message handler previously registered to this channel with `channel.bindStore(store)`.
*
* ```js
* import diagnostics_channel from 'node:diagnostics_channel';
* import { AsyncLocalStorage } from 'node:async_hooks';
*
* const store = new AsyncLocalStorage();
*
* const channel = diagnostics_channel.channel('my-channel');
*
* channel.bindStore(store);
* channel.unbindStore(store);
* ```
* @since v19.9.0
* @experimental
* @param store The store to unbind from the channel.
* @return `true` if the store was found, `false` otherwise.
*/
unbindStore(store: any): void;
/**
* Applies the given data to any AsyncLocalStorage instances bound to the channel
* for the duration of the given function, then publishes to the channel within
* the scope of that data is applied to the stores.
*
* If a transform function was given to `channel.bindStore(store)` it will be
* applied to transform the message data before it becomes the context value for
* the store. The prior storage context is accessible from within the transform
* function in cases where context linking is required.
*
* The context applied to the store should be accessible in any async code which
* continues from execution which began during the given function, however
* there are some situations in which `context loss` may occur.
*
* ```js
* import diagnostics_channel from 'node:diagnostics_channel';
* import { AsyncLocalStorage } from 'node:async_hooks';
*
* const store = new AsyncLocalStorage();
*
* const channel = diagnostics_channel.channel('my-channel');
*
* channel.bindStore(store, (message) => {
* const parent = store.getStore();
* return new Span(message, parent);
* });
* channel.runStores({ some: 'message' }, () => {
* store.getStore(); // Span({ some: 'message' })
* });
* ```
* @since v19.9.0
* @experimental
* @param context Message to send to subscribers and bind to stores
* @param fn Handler to run within the entered storage context
* @param thisArg The receiver to be used for the function call.
* @param args Optional arguments to pass to the function.
*/
runStores(): void;
}
interface TracingChannelSubscribers<ContextType extends object> {
start: (message: ContextType) => void;
end: (
message: ContextType & {
error?: unknown;
result?: unknown;
},
) => void;
asyncStart: (
message: ContextType & {
error?: unknown;
result?: unknown;
},
) => void;
asyncEnd: (
message: ContextType & {
error?: unknown;
result?: unknown;
},
) => void;
error: (
message: ContextType & {
error: unknown;
},
) => void;
}
interface TracingChannelCollection<StoreType = unknown, ContextType = StoreType> {
start: Channel<StoreType, ContextType>;
end: Channel<StoreType, ContextType>;
asyncStart: Channel<StoreType, ContextType>;
asyncEnd: Channel<StoreType, ContextType>;
error: Channel<StoreType, ContextType>;
}
/**
* The class `TracingChannel` is a collection of `TracingChannel Channels` which
* together express a single traceable action. It is used to formalize and
* simplify the process of producing events for tracing application flow. {@link tracingChannel} is used to construct a `TracingChannel`. As with `Channel` it is recommended to create and reuse a
* single `TracingChannel` at the top-level of the file rather than creating them
* dynamically.
* @since v19.9.0
* @experimental
*/
class TracingChannel<StoreType = unknown, ContextType extends object = {}> implements TracingChannelCollection {
start: Channel<StoreType, ContextType>;
end: Channel<StoreType, ContextType>;
asyncStart: Channel<StoreType, ContextType>;
asyncEnd: Channel<StoreType, ContextType>;
error: Channel<StoreType, ContextType>;
/**
* Helper to subscribe a collection of functions to the corresponding channels.
* This is the same as calling `channel.subscribe(onMessage)` on each channel
* individually.
*
* ```js
* import diagnostics_channel from 'node:diagnostics_channel';
*
* const channels = diagnostics_channel.tracingChannel('my-channel');
*
* channels.subscribe({
* start(message) {
* // Handle start message
* },
* end(message) {
* // Handle end message
* },
* asyncStart(message) {
* // Handle asyncStart message
* },
* asyncEnd(message) {
* // Handle asyncEnd message
* },
* error(message) {
* // Handle error message
* },
* });
* ```
* @since v19.9.0
* @experimental
* @param subscribers Set of `TracingChannel Channels` subscribers
*/
subscribe(subscribers: TracingChannelSubscribers<ContextType>): void;
/**
* Helper to unsubscribe a collection of functions from the corresponding channels.
* This is the same as calling `channel.unsubscribe(onMessage)` on each channel
* individually.
*
* ```js
* import diagnostics_channel from 'node:diagnostics_channel';
*
* const channels = diagnostics_channel.tracingChannel('my-channel');
*
* channels.unsubscribe({
* start(message) {
* // Handle start message
* },
* end(message) {
* // Handle end message
* },
* asyncStart(message) {
* // Handle asyncStart message
* },
* asyncEnd(message) {
* // Handle asyncEnd message
* },
* error(message) {
* // Handle error message
* },
* });
* ```
* @since v19.9.0
* @experimental
* @param subscribers Set of `TracingChannel Channels` subscribers
* @return `true` if all handlers were successfully unsubscribed, and `false` otherwise.
*/
unsubscribe(subscribers: TracingChannelSubscribers<ContextType>): void;
/**
* Trace a synchronous function call. This will always produce a `start event` and `end event` around the execution and may produce an `error event` if the given function throws an error.
* This will run the given function using `channel.runStores(context, ...)` on the `start` channel which ensures all
* events should have any bound stores set to match this trace context.
*
* To ensure only correct trace graphs are formed, events will only be published if subscribers are present prior to starting the trace. Subscriptions
* which are added after the trace begins will not receive future events from that trace, only future traces will be seen.
*
* ```js
* import diagnostics_channel from 'node:diagnostics_channel';
*
* const channels = diagnostics_channel.tracingChannel('my-channel');
*
* channels.traceSync(() => {
* // Do something
* }, {
* some: 'thing',
* });
* ```
* @since v19.9.0
* @experimental
* @param fn Function to wrap a trace around
* @param context Shared object to correlate events through
* @param thisArg The receiver to be used for the function call
* @param args Optional arguments to pass to the function
* @return The return value of the given function
*/
traceSync<ThisArg = any, Args extends any[] = any[]>(
fn: (this: ThisArg, ...args: Args) => any,
context?: ContextType,
thisArg?: ThisArg,
...args: Args
): void;
/**
* Trace a promise-returning function call. This will always produce a `start event` and `end event` around the synchronous portion of the
* function execution, and will produce an `asyncStart event` and `asyncEnd event` when a promise continuation is reached. It may also
* produce an `error event` if the given function throws an error or the
* returned promise rejects. This will run the given function using `channel.runStores(context, ...)` on the `start` channel which ensures all
* events should have any bound stores set to match this trace context.
*
* To ensure only correct trace graphs are formed, events will only be published if subscribers are present prior to starting the trace. Subscriptions
* which are added after the trace begins will not receive future events from that trace, only future traces will be seen.
*
* ```js
* import diagnostics_channel from 'node:diagnostics_channel';
*
* const channels = diagnostics_channel.tracingChannel('my-channel');
*
* channels.tracePromise(async () => {
* // Do something
* }, {
* some: 'thing',
* });
* ```
* @since v19.9.0
* @experimental
* @param fn Promise-returning function to wrap a trace around
* @param context Shared object to correlate trace events through
* @param thisArg The receiver to be used for the function call
* @param args Optional arguments to pass to the function
* @return Chained from promise returned by the given function
*/
tracePromise<ThisArg = any, Args extends any[] = any[]>(
fn: (this: ThisArg, ...args: Args) => Promise<any>,
context?: ContextType,
thisArg?: ThisArg,
...args: Args
): void;
/**
* Trace a callback-receiving function call. This will always produce a `start event` and `end event` around the synchronous portion of the
* function execution, and will produce a `asyncStart event` and `asyncEnd event` around the callback execution. It may also produce an `error event` if the given function throws an error or
* the returned
* promise rejects. This will run the given function using `channel.runStores(context, ...)` on the `start` channel which ensures all
* events should have any bound stores set to match this trace context.
*
* The `position` will be -1 by default to indicate the final argument should
* be used as the callback.
*
* ```js
* import diagnostics_channel from 'node:diagnostics_channel';
*
* const channels = diagnostics_channel.tracingChannel('my-channel');
*
* channels.traceCallback((arg1, callback) => {
* // Do something
* callback(null, 'result');
* }, 1, {
* some: 'thing',
* }, thisArg, arg1, callback);
* ```
*
* The callback will also be run with `channel.runStores(context, ...)` which
* enables context loss recovery in some cases.
*
* To ensure only correct trace graphs are formed, events will only be published if subscribers are present prior to starting the trace. Subscriptions
* which are added after the trace begins will not receive future events from that trace, only future traces will be seen.
*
* ```js
* import diagnostics_channel from 'node:diagnostics_channel';
* import { AsyncLocalStorage } from 'node:async_hooks';
*
* const channels = diagnostics_channel.tracingChannel('my-channel');
* const myStore = new AsyncLocalStorage();
*
* // The start channel sets the initial store data to something
* // and stores that store data value on the trace context object
* channels.start.bindStore(myStore, (data) => {
* const span = new Span(data);
* data.span = span;
* return span;
* });
*
* // Then asyncStart can restore from that data it stored previously
* channels.asyncStart.bindStore(myStore, (data) => {
* return data.span;
* });
* ```
* @since v19.9.0
* @experimental
* @param fn callback using function to wrap a trace around
* @param position Zero-indexed argument position of expected callback
* @param context Shared object to correlate trace events through
* @param thisArg The receiver to be used for the function call
* @param args Optional arguments to pass to the function
* @return The return value of the given function
*/
traceCallback<Fn extends (this: any, ...args: any[]) => any>(
fn: Fn,
position?: number,
context?: ContextType,
thisArg?: any,
...args: Parameters<Fn>
): void;
}
}
declare module "node:diagnostics_channel" {
export * from "diagnostics_channel";
}
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@@ -0,0 +1,865 @@
/**
* The `node:dns` module enables name resolution. For example, use it to look up IP
* addresses of host names.
*
* Although named for the [Domain Name System (DNS)](https://en.wikipedia.org/wiki/Domain_Name_System), it does not always use the
* DNS protocol for lookups. {@link lookup} uses the operating system
* facilities to perform name resolution. It may not need to perform any network
* communication. To perform name resolution the way other applications on the same
* system do, use {@link lookup}.
*
* ```js
* import dns from 'node:dns';
*
* dns.lookup('example.org', (err, address, family) => {
* console.log('address: %j family: IPv%s', address, family);
* });
* // address: "93.184.216.34" family: IPv4
* ```
*
* All other functions in the `node:dns` module connect to an actual DNS server to
* perform name resolution. They will always use the network to perform DNS
* queries. These functions do not use the same set of configuration files used by {@link lookup} (e.g. `/etc/hosts`). Use these functions to always perform
* DNS queries, bypassing other name-resolution facilities.
*
* ```js
* import dns from 'node:dns';
*
* dns.resolve4('archive.org', (err, addresses) => {
* if (err) throw err;
*
* console.log(`addresses: ${JSON.stringify(addresses)}`);
*
* addresses.forEach((a) => {
* dns.reverse(a, (err, hostnames) => {
* if (err) {
* throw err;
* }
* console.log(`reverse for ${a}: ${JSON.stringify(hostnames)}`);
* });
* });
* });
* ```
*
* See the [Implementation considerations section](https://nodejs.org/docs/latest-v22.x/api/dns.html#implementation-considerations) for more information.
* @see [source](https://github.com/nodejs/node/blob/v22.x/lib/dns.js)
*/
declare module "dns" {
import * as dnsPromises from "node:dns/promises";
// Supported getaddrinfo flags.
/**
* Limits returned address types to the types of non-loopback addresses configured on the system. For example, IPv4 addresses are
* only returned if the current system has at least one IPv4 address configured.
*/
export const ADDRCONFIG: number;
/**
* If the IPv6 family was specified, but no IPv6 addresses were found, then return IPv4 mapped IPv6 addresses. It is not supported
* on some operating systems (e.g. FreeBSD 10.1).
*/
export const V4MAPPED: number;
/**
* If `dns.V4MAPPED` is specified, return resolved IPv6 addresses as
* well as IPv4 mapped IPv6 addresses.
*/
export const ALL: number;
export interface LookupOptions {
/**
* The record family. Must be `4`, `6`, or `0`. For backward compatibility reasons, `'IPv4'` and `'IPv6'` are interpreted
* as `4` and `6` respectively. The value 0 indicates that either an IPv4 or IPv6 address is returned. If the value `0` is used
* with `{ all: true } (see below)`, both IPv4 and IPv6 addresses are returned.
* @default 0
*/
family?: number | "IPv4" | "IPv6" | undefined;
/**
* One or more [supported `getaddrinfo`](https://nodejs.org/docs/latest-v22.x/api/dns.html#supported-getaddrinfo-flags) flags. Multiple flags may be
* passed by bitwise `OR`ing their values.
*/
hints?: number | undefined;
/**
* When `true`, the callback returns all resolved addresses in an array. Otherwise, returns a single address.
* @default false
*/
all?: boolean | undefined;
/**
* When `verbatim`, the resolved addresses are return unsorted. When `ipv4first`, the resolved addresses are sorted
* by placing IPv4 addresses before IPv6 addresses. When `ipv6first`, the resolved addresses are sorted by placing IPv6
* addresses before IPv4 addresses. Default value is configurable using
* {@link setDefaultResultOrder} or [`--dns-result-order`](https://nodejs.org/docs/latest-v22.x/api/cli.html#--dns-result-orderorder).
* @default `verbatim` (addresses are not reordered)
* @since v22.1.0
*/
order?: "ipv4first" | "ipv6first" | "verbatim" | undefined;
/**
* When `true`, the callback receives IPv4 and IPv6 addresses in the order the DNS resolver returned them. When `false`, IPv4
* addresses are placed before IPv6 addresses. This option will be deprecated in favor of `order`. When both are specified,
* `order` has higher precedence. New code should only use `order`. Default value is configurable using {@link setDefaultResultOrder}
* @default true (addresses are not reordered)
* @deprecated Please use `order` option
*/
verbatim?: boolean | undefined;
}
export interface LookupOneOptions extends LookupOptions {
all?: false | undefined;
}
export interface LookupAllOptions extends LookupOptions {
all: true;
}
export interface LookupAddress {
/**
* A string representation of an IPv4 or IPv6 address.
*/
address: string;
/**
* `4` or `6`, denoting the family of `address`, or `0` if the address is not an IPv4 or IPv6 address. `0` is a likely indicator of a
* bug in the name resolution service used by the operating system.
*/
family: number;
}
/**
* Resolves a host name (e.g. `'nodejs.org'`) into the first found A (IPv4) or
* AAAA (IPv6) record. All `option` properties are optional. If `options` is an
* integer, then it must be `4` or `6` if `options` is `0` or not provided, then
* IPv4 and IPv6 addresses are both returned if found.
*
* With the `all` option set to `true`, the arguments for `callback` change to `(err, addresses)`, with `addresses` being an array of objects with the
* properties `address` and `family`.
*
* On error, `err` is an `Error` object, where `err.code` is the error code.
* Keep in mind that `err.code` will be set to `'ENOTFOUND'` not only when
* the host name does not exist but also when the lookup fails in other ways
* such as no available file descriptors.
*
* `dns.lookup()` does not necessarily have anything to do with the DNS protocol.
* The implementation uses an operating system facility that can associate names
* with addresses and vice versa. This implementation can have subtle but
* important consequences on the behavior of any Node.js program. Please take some
* time to consult the [Implementation considerations section](https://nodejs.org/docs/latest-v22.x/api/dns.html#implementation-considerations)
* before using `dns.lookup()`.
*
* Example usage:
*
* ```js
* import dns from 'node:dns';
* const options = {
* family: 6,
* hints: dns.ADDRCONFIG | dns.V4MAPPED,
* };
* dns.lookup('example.com', options, (err, address, family) =>
* console.log('address: %j family: IPv%s', address, family));
* // address: "2606:2800:220:1:248:1893:25c8:1946" family: IPv6
*
* // When options.all is true, the result will be an Array.
* options.all = true;
* dns.lookup('example.com', options, (err, addresses) =>
* console.log('addresses: %j', addresses));
* // addresses: [{"address":"2606:2800:220:1:248:1893:25c8:1946","family":6}]
* ```
*
* If this method is invoked as its [util.promisify()](https://nodejs.org/docs/latest-v22.x/api/util.html#utilpromisifyoriginal) ed
* version, and `all` is not set to `true`, it returns a `Promise` for an `Object` with `address` and `family` properties.
* @since v0.1.90
*/
export function lookup(
hostname: string,
family: number,
callback: (err: NodeJS.ErrnoException | null, address: string, family: number) => void,
): void;
export function lookup(
hostname: string,
options: LookupOneOptions,
callback: (err: NodeJS.ErrnoException | null, address: string, family: number) => void,
): void;
export function lookup(
hostname: string,
options: LookupAllOptions,
callback: (err: NodeJS.ErrnoException | null, addresses: LookupAddress[]) => void,
): void;
export function lookup(
hostname: string,
options: LookupOptions,
callback: (err: NodeJS.ErrnoException | null, address: string | LookupAddress[], family: number) => void,
): void;
export function lookup(
hostname: string,
callback: (err: NodeJS.ErrnoException | null, address: string, family: number) => void,
): void;
export namespace lookup {
function __promisify__(hostname: string, options: LookupAllOptions): Promise<LookupAddress[]>;
function __promisify__(hostname: string, options?: LookupOneOptions | number): Promise<LookupAddress>;
function __promisify__(hostname: string, options: LookupOptions): Promise<LookupAddress | LookupAddress[]>;
}
/**
* Resolves the given `address` and `port` into a host name and service using
* the operating system's underlying `getnameinfo` implementation.
*
* If `address` is not a valid IP address, a `TypeError` will be thrown.
* The `port` will be coerced to a number. If it is not a legal port, a `TypeError` will be thrown.
*
* On an error, `err` is an [`Error`](https://nodejs.org/docs/latest-v22.x/api/errors.html#class-error) object,
* where `err.code` is the error code.
*
* ```js
* import dns from 'node:dns';
* dns.lookupService('127.0.0.1', 22, (err, hostname, service) => {
* console.log(hostname, service);
* // Prints: localhost ssh
* });
* ```
*
* If this method is invoked as its [util.promisify()](https://nodejs.org/docs/latest-v22.x/api/util.html#utilpromisifyoriginal) ed
* version, it returns a `Promise` for an `Object` with `hostname` and `service` properties.
* @since v0.11.14
*/
export function lookupService(
address: string,
port: number,
callback: (err: NodeJS.ErrnoException | null, hostname: string, service: string) => void,
): void;
export namespace lookupService {
function __promisify__(
address: string,
port: number,
): Promise<{
hostname: string;
service: string;
}>;
}
export interface ResolveOptions {
ttl: boolean;
}
export interface ResolveWithTtlOptions extends ResolveOptions {
ttl: true;
}
export interface RecordWithTtl {
address: string;
ttl: number;
}
/** @deprecated Use `AnyARecord` or `AnyAaaaRecord` instead. */
export type AnyRecordWithTtl = AnyARecord | AnyAaaaRecord;
export interface AnyARecord extends RecordWithTtl {
type: "A";
}
export interface AnyAaaaRecord extends RecordWithTtl {
type: "AAAA";
}
export interface CaaRecord {
critical: number;
issue?: string | undefined;
issuewild?: string | undefined;
iodef?: string | undefined;
contactemail?: string | undefined;
contactphone?: string | undefined;
}
export interface MxRecord {
priority: number;
exchange: string;
}
export interface AnyMxRecord extends MxRecord {
type: "MX";
}
export interface NaptrRecord {
flags: string;
service: string;
regexp: string;
replacement: string;
order: number;
preference: number;
}
export interface AnyNaptrRecord extends NaptrRecord {
type: "NAPTR";
}
export interface SoaRecord {
nsname: string;
hostmaster: string;
serial: number;
refresh: number;
retry: number;
expire: number;
minttl: number;
}
export interface AnySoaRecord extends SoaRecord {
type: "SOA";
}
export interface SrvRecord {
priority: number;
weight: number;
port: number;
name: string;
}
export interface AnySrvRecord extends SrvRecord {
type: "SRV";
}
export interface AnyTxtRecord {
type: "TXT";
entries: string[];
}
export interface AnyNsRecord {
type: "NS";
value: string;
}
export interface AnyPtrRecord {
type: "PTR";
value: string;
}
export interface AnyCnameRecord {
type: "CNAME";
value: string;
}
export type AnyRecord =
| AnyARecord
| AnyAaaaRecord
| AnyCnameRecord
| AnyMxRecord
| AnyNaptrRecord
| AnyNsRecord
| AnyPtrRecord
| AnySoaRecord
| AnySrvRecord
| AnyTxtRecord;
/**
* Uses the DNS protocol to resolve a host name (e.g. `'nodejs.org'`) into an array
* of the resource records. The `callback` function has arguments `(err, records)`. When successful, `records` will be an array of resource
* records. The type and structure of individual results varies based on `rrtype`:
*
* <omitted>
*
* On error, `err` is an [`Error`](https://nodejs.org/docs/latest-v22.x/api/errors.html#class-error) object,
* where `err.code` is one of the `DNS error codes`.
* @since v0.1.27
* @param hostname Host name to resolve.
* @param [rrtype='A'] Resource record type.
*/
export function resolve(
hostname: string,
callback: (err: NodeJS.ErrnoException | null, addresses: string[]) => void,
): void;
export function resolve(
hostname: string,
rrtype: "A",
callback: (err: NodeJS.ErrnoException | null, addresses: string[]) => void,
): void;
export function resolve(
hostname: string,
rrtype: "AAAA",
callback: (err: NodeJS.ErrnoException | null, addresses: string[]) => void,
): void;
export function resolve(
hostname: string,
rrtype: "ANY",
callback: (err: NodeJS.ErrnoException | null, addresses: AnyRecord[]) => void,
): void;
export function resolve(
hostname: string,
rrtype: "CNAME",
callback: (err: NodeJS.ErrnoException | null, addresses: string[]) => void,
): void;
export function resolve(
hostname: string,
rrtype: "MX",
callback: (err: NodeJS.ErrnoException | null, addresses: MxRecord[]) => void,
): void;
export function resolve(
hostname: string,
rrtype: "NAPTR",
callback: (err: NodeJS.ErrnoException | null, addresses: NaptrRecord[]) => void,
): void;
export function resolve(
hostname: string,
rrtype: "NS",
callback: (err: NodeJS.ErrnoException | null, addresses: string[]) => void,
): void;
export function resolve(
hostname: string,
rrtype: "PTR",
callback: (err: NodeJS.ErrnoException | null, addresses: string[]) => void,
): void;
export function resolve(
hostname: string,
rrtype: "SOA",
callback: (err: NodeJS.ErrnoException | null, addresses: SoaRecord) => void,
): void;
export function resolve(
hostname: string,
rrtype: "SRV",
callback: (err: NodeJS.ErrnoException | null, addresses: SrvRecord[]) => void,
): void;
export function resolve(
hostname: string,
rrtype: "TXT",
callback: (err: NodeJS.ErrnoException | null, addresses: string[][]) => void,
): void;
export function resolve(
hostname: string,
rrtype: string,
callback: (
err: NodeJS.ErrnoException | null,
addresses: string[] | MxRecord[] | NaptrRecord[] | SoaRecord | SrvRecord[] | string[][] | AnyRecord[],
) => void,
): void;
export namespace resolve {
function __promisify__(hostname: string, rrtype?: "A" | "AAAA" | "CNAME" | "NS" | "PTR"): Promise<string[]>;
function __promisify__(hostname: string, rrtype: "ANY"): Promise<AnyRecord[]>;
function __promisify__(hostname: string, rrtype: "MX"): Promise<MxRecord[]>;
function __promisify__(hostname: string, rrtype: "NAPTR"): Promise<NaptrRecord[]>;
function __promisify__(hostname: string, rrtype: "SOA"): Promise<SoaRecord>;
function __promisify__(hostname: string, rrtype: "SRV"): Promise<SrvRecord[]>;
function __promisify__(hostname: string, rrtype: "TXT"): Promise<string[][]>;
function __promisify__(
hostname: string,
rrtype: string,
): Promise<string[] | MxRecord[] | NaptrRecord[] | SoaRecord | SrvRecord[] | string[][] | AnyRecord[]>;
}
/**
* Uses the DNS protocol to resolve a IPv4 addresses (`A` records) for the `hostname`. The `addresses` argument passed to the `callback` function
* will contain an array of IPv4 addresses (e.g.`['74.125.79.104', '74.125.79.105', '74.125.79.106']`).
* @since v0.1.16
* @param hostname Host name to resolve.
*/
export function resolve4(
hostname: string,
callback: (err: NodeJS.ErrnoException | null, addresses: string[]) => void,
): void;
export function resolve4(
hostname: string,
options: ResolveWithTtlOptions,
callback: (err: NodeJS.ErrnoException | null, addresses: RecordWithTtl[]) => void,
): void;
export function resolve4(
hostname: string,
options: ResolveOptions,
callback: (err: NodeJS.ErrnoException | null, addresses: string[] | RecordWithTtl[]) => void,
): void;
export namespace resolve4 {
function __promisify__(hostname: string): Promise<string[]>;
function __promisify__(hostname: string, options: ResolveWithTtlOptions): Promise<RecordWithTtl[]>;
function __promisify__(hostname: string, options?: ResolveOptions): Promise<string[] | RecordWithTtl[]>;
}
/**
* Uses the DNS protocol to resolve IPv6 addresses (`AAAA` records) for the `hostname`. The `addresses` argument passed to the `callback` function
* will contain an array of IPv6 addresses.
* @since v0.1.16
* @param hostname Host name to resolve.
*/
export function resolve6(
hostname: string,
callback: (err: NodeJS.ErrnoException | null, addresses: string[]) => void,
): void;
export function resolve6(
hostname: string,
options: ResolveWithTtlOptions,
callback: (err: NodeJS.ErrnoException | null, addresses: RecordWithTtl[]) => void,
): void;
export function resolve6(
hostname: string,
options: ResolveOptions,
callback: (err: NodeJS.ErrnoException | null, addresses: string[] | RecordWithTtl[]) => void,
): void;
export namespace resolve6 {
function __promisify__(hostname: string): Promise<string[]>;
function __promisify__(hostname: string, options: ResolveWithTtlOptions): Promise<RecordWithTtl[]>;
function __promisify__(hostname: string, options?: ResolveOptions): Promise<string[] | RecordWithTtl[]>;
}
/**
* Uses the DNS protocol to resolve `CNAME` records for the `hostname`. The `addresses` argument passed to the `callback` function
* will contain an array of canonical name records available for the `hostname` (e.g. `['bar.example.com']`).
* @since v0.3.2
*/
export function resolveCname(
hostname: string,
callback: (err: NodeJS.ErrnoException | null, addresses: string[]) => void,
): void;
export namespace resolveCname {
function __promisify__(hostname: string): Promise<string[]>;
}
/**
* Uses the DNS protocol to resolve `CAA` records for the `hostname`. The `addresses` argument passed to the `callback` function
* will contain an array of certification authority authorization records
* available for the `hostname` (e.g. `[{critical: 0, iodef: 'mailto:pki@example.com'}, {critical: 128, issue: 'pki.example.com'}]`).
* @since v15.0.0, v14.17.0
*/
export function resolveCaa(
hostname: string,
callback: (err: NodeJS.ErrnoException | null, records: CaaRecord[]) => void,
): void;
export namespace resolveCaa {
function __promisify__(hostname: string): Promise<CaaRecord[]>;
}
/**
* Uses the DNS protocol to resolve mail exchange records (`MX` records) for the `hostname`. The `addresses` argument passed to the `callback` function will
* contain an array of objects containing both a `priority` and `exchange` property (e.g. `[{priority: 10, exchange: 'mx.example.com'}, ...]`).
* @since v0.1.27
*/
export function resolveMx(
hostname: string,
callback: (err: NodeJS.ErrnoException | null, addresses: MxRecord[]) => void,
): void;
export namespace resolveMx {
function __promisify__(hostname: string): Promise<MxRecord[]>;
}
/**
* Uses the DNS protocol to resolve regular expression-based records (`NAPTR` records) for the `hostname`. The `addresses` argument passed to the `callback` function will contain an array of
* objects with the following properties:
*
* * `flags`
* * `service`
* * `regexp`
* * `replacement`
* * `order`
* * `preference`
*
* ```js
* {
* flags: 's',
* service: 'SIP+D2U',
* regexp: '',
* replacement: '_sip._udp.example.com',
* order: 30,
* preference: 100
* }
* ```
* @since v0.9.12
*/
export function resolveNaptr(
hostname: string,
callback: (err: NodeJS.ErrnoException | null, addresses: NaptrRecord[]) => void,
): void;
export namespace resolveNaptr {
function __promisify__(hostname: string): Promise<NaptrRecord[]>;
}
/**
* Uses the DNS protocol to resolve name server records (`NS` records) for the `hostname`. The `addresses` argument passed to the `callback` function will
* contain an array of name server records available for `hostname` (e.g. `['ns1.example.com', 'ns2.example.com']`).
* @since v0.1.90
*/
export function resolveNs(
hostname: string,
callback: (err: NodeJS.ErrnoException | null, addresses: string[]) => void,
): void;
export namespace resolveNs {
function __promisify__(hostname: string): Promise<string[]>;
}
/**
* Uses the DNS protocol to resolve pointer records (`PTR` records) for the `hostname`. The `addresses` argument passed to the `callback` function will
* be an array of strings containing the reply records.
* @since v6.0.0
*/
export function resolvePtr(
hostname: string,
callback: (err: NodeJS.ErrnoException | null, addresses: string[]) => void,
): void;
export namespace resolvePtr {
function __promisify__(hostname: string): Promise<string[]>;
}
/**
* Uses the DNS protocol to resolve a start of authority record (`SOA` record) for
* the `hostname`. The `address` argument passed to the `callback` function will
* be an object with the following properties:
*
* * `nsname`
* * `hostmaster`
* * `serial`
* * `refresh`
* * `retry`
* * `expire`
* * `minttl`
*
* ```js
* {
* nsname: 'ns.example.com',
* hostmaster: 'root.example.com',
* serial: 2013101809,
* refresh: 10000,
* retry: 2400,
* expire: 604800,
* minttl: 3600
* }
* ```
* @since v0.11.10
*/
export function resolveSoa(
hostname: string,
callback: (err: NodeJS.ErrnoException | null, address: SoaRecord) => void,
): void;
export namespace resolveSoa {
function __promisify__(hostname: string): Promise<SoaRecord>;
}
/**
* Uses the DNS protocol to resolve service records (`SRV` records) for the `hostname`. The `addresses` argument passed to the `callback` function will
* be an array of objects with the following properties:
*
* * `priority`
* * `weight`
* * `port`
* * `name`
*
* ```js
* {
* priority: 10,
* weight: 5,
* port: 21223,
* name: 'service.example.com'
* }
* ```
* @since v0.1.27
*/
export function resolveSrv(
hostname: string,
callback: (err: NodeJS.ErrnoException | null, addresses: SrvRecord[]) => void,
): void;
export namespace resolveSrv {
function __promisify__(hostname: string): Promise<SrvRecord[]>;
}
/**
* Uses the DNS protocol to resolve text queries (`TXT` records) for the `hostname`. The `records` argument passed to the `callback` function is a
* two-dimensional array of the text records available for `hostname` (e.g.`[ ['v=spf1 ip4:0.0.0.0 ', '~all' ] ]`). Each sub-array contains TXT chunks of
* one record. Depending on the use case, these could be either joined together or
* treated separately.
* @since v0.1.27
*/
export function resolveTxt(
hostname: string,
callback: (err: NodeJS.ErrnoException | null, addresses: string[][]) => void,
): void;
export namespace resolveTxt {
function __promisify__(hostname: string): Promise<string[][]>;
}
/**
* Uses the DNS protocol to resolve all records (also known as `ANY` or `*` query).
* The `ret` argument passed to the `callback` function will be an array containing
* various types of records. Each object has a property `type` that indicates the
* type of the current record. And depending on the `type`, additional properties
* will be present on the object:
*
* <omitted>
*
* Here is an example of the `ret` object passed to the callback:
*
* ```js
* [ { type: 'A', address: '127.0.0.1', ttl: 299 },
* { type: 'CNAME', value: 'example.com' },
* { type: 'MX', exchange: 'alt4.aspmx.l.example.com', priority: 50 },
* { type: 'NS', value: 'ns1.example.com' },
* { type: 'TXT', entries: [ 'v=spf1 include:_spf.example.com ~all' ] },
* { type: 'SOA',
* nsname: 'ns1.example.com',
* hostmaster: 'admin.example.com',
* serial: 156696742,
* refresh: 900,
* retry: 900,
* expire: 1800,
* minttl: 60 } ]
* ```
*
* DNS server operators may choose not to respond to `ANY` queries. It may be better to call individual methods like {@link resolve4}, {@link resolveMx}, and so on. For more details, see
* [RFC 8482](https://tools.ietf.org/html/rfc8482).
*/
export function resolveAny(
hostname: string,
callback: (err: NodeJS.ErrnoException | null, addresses: AnyRecord[]) => void,
): void;
export namespace resolveAny {
function __promisify__(hostname: string): Promise<AnyRecord[]>;
}
/**
* Performs a reverse DNS query that resolves an IPv4 or IPv6 address to an
* array of host names.
*
* On error, `err` is an [`Error`](https://nodejs.org/docs/latest-v22.x/api/errors.html#class-error) object, where `err.code` is
* one of the [DNS error codes](https://nodejs.org/docs/latest-v22.x/api/dns.html#error-codes).
* @since v0.1.16
*/
export function reverse(
ip: string,
callback: (err: NodeJS.ErrnoException | null, hostnames: string[]) => void,
): void;
/**
* Get the default value for `order` in {@link lookup} and [`dnsPromises.lookup()`](https://nodejs.org/docs/latest-v22.x/api/dns.html#dnspromiseslookuphostname-options).
* The value could be:
*
* * `ipv4first`: for `order` defaulting to `ipv4first`.
* * `ipv6first`: for `order` defaulting to `ipv6first`.
* * `verbatim`: for `order` defaulting to `verbatim`.
* @since v18.17.0
*/
export function getDefaultResultOrder(): "ipv4first" | "ipv6first" | "verbatim";
/**
* Sets the IP address and port of servers to be used when performing DNS
* resolution. The `servers` argument is an array of [RFC 5952](https://tools.ietf.org/html/rfc5952#section-6) formatted
* addresses. If the port is the IANA default DNS port (53) it can be omitted.
*
* ```js
* dns.setServers([
* '4.4.4.4',
* '[2001:4860:4860::8888]',
* '4.4.4.4:1053',
* '[2001:4860:4860::8888]:1053',
* ]);
* ```
*
* An error will be thrown if an invalid address is provided.
*
* The `dns.setServers()` method must not be called while a DNS query is in
* progress.
*
* The {@link setServers} method affects only {@link resolve}, `dns.resolve*()` and {@link reverse} (and specifically _not_ {@link lookup}).
*
* This method works much like [resolve.conf](https://man7.org/linux/man-pages/man5/resolv.conf.5.html).
* That is, if attempting to resolve with the first server provided results in a `NOTFOUND` error, the `resolve()` method will _not_ attempt to resolve with
* subsequent servers provided. Fallback DNS servers will only be used if the
* earlier ones time out or result in some other error.
* @since v0.11.3
* @param servers array of [RFC 5952](https://datatracker.ietf.org/doc/html/rfc5952#section-6) formatted addresses
*/
export function setServers(servers: readonly string[]): void;
/**
* Returns an array of IP address strings, formatted according to [RFC 5952](https://tools.ietf.org/html/rfc5952#section-6),
* that are currently configured for DNS resolution. A string will include a port
* section if a custom port is used.
*
* ```js
* [
* '4.4.4.4',
* '2001:4860:4860::8888',
* '4.4.4.4:1053',
* '[2001:4860:4860::8888]:1053',
* ]
* ```
* @since v0.11.3
*/
export function getServers(): string[];
/**
* Set the default value of `order` in {@link lookup} and [`dnsPromises.lookup()`](https://nodejs.org/docs/latest-v22.x/api/dns.html#dnspromiseslookuphostname-options).
* The value could be:
*
* * `ipv4first`: sets default `order` to `ipv4first`.
* * `ipv6first`: sets default `order` to `ipv6first`.
* * `verbatim`: sets default `order` to `verbatim`.
*
* The default is `verbatim` and {@link setDefaultResultOrder} have higher
* priority than [`--dns-result-order`](https://nodejs.org/docs/latest-v22.x/api/cli.html#--dns-result-orderorder). When using
* [worker threads](https://nodejs.org/docs/latest-v22.x/api/worker_threads.html), {@link setDefaultResultOrder} from the main
* thread won't affect the default dns orders in workers.
* @since v16.4.0, v14.18.0
* @param order must be `'ipv4first'`, `'ipv6first'` or `'verbatim'`.
*/
export function setDefaultResultOrder(order: "ipv4first" | "ipv6first" | "verbatim"): void;
// Error codes
export const NODATA: "ENODATA";
export const FORMERR: "EFORMERR";
export const SERVFAIL: "ESERVFAIL";
export const NOTFOUND: "ENOTFOUND";
export const NOTIMP: "ENOTIMP";
export const REFUSED: "EREFUSED";
export const BADQUERY: "EBADQUERY";
export const BADNAME: "EBADNAME";
export const BADFAMILY: "EBADFAMILY";
export const BADRESP: "EBADRESP";
export const CONNREFUSED: "ECONNREFUSED";
export const TIMEOUT: "ETIMEOUT";
export const EOF: "EOF";
export const FILE: "EFILE";
export const NOMEM: "ENOMEM";
export const DESTRUCTION: "EDESTRUCTION";
export const BADSTR: "EBADSTR";
export const BADFLAGS: "EBADFLAGS";
export const NONAME: "ENONAME";
export const BADHINTS: "EBADHINTS";
export const NOTINITIALIZED: "ENOTINITIALIZED";
export const LOADIPHLPAPI: "ELOADIPHLPAPI";
export const ADDRGETNETWORKPARAMS: "EADDRGETNETWORKPARAMS";
export const CANCELLED: "ECANCELLED";
export interface ResolverOptions {
/**
* Query timeout in milliseconds, or `-1` to use the default timeout.
*/
timeout?: number | undefined;
/**
* The number of tries the resolver will try contacting each name server before giving up.
* @default 4
*/
tries?: number;
}
/**
* An independent resolver for DNS requests.
*
* Creating a new resolver uses the default server settings. Setting
* the servers used for a resolver using [`resolver.setServers()`](https://nodejs.org/docs/latest-v22.x/api/dns.html#dnssetserversservers) does not affect
* other resolvers:
*
* ```js
* import { Resolver } from 'node:dns';
* const resolver = new Resolver();
* resolver.setServers(['4.4.4.4']);
*
* // This request will use the server at 4.4.4.4, independent of global settings.
* resolver.resolve4('example.org', (err, addresses) => {
* // ...
* });
* ```
*
* The following methods from the `node:dns` module are available:
*
* * `resolver.getServers()`
* * `resolver.resolve()`
* * `resolver.resolve4()`
* * `resolver.resolve6()`
* * `resolver.resolveAny()`
* * `resolver.resolveCaa()`
* * `resolver.resolveCname()`
* * `resolver.resolveMx()`
* * `resolver.resolveNaptr()`
* * `resolver.resolveNs()`
* * `resolver.resolvePtr()`
* * `resolver.resolveSoa()`
* * `resolver.resolveSrv()`
* * `resolver.resolveTxt()`
* * `resolver.reverse()`
* * `resolver.setServers()`
* @since v8.3.0
*/
export class Resolver {
constructor(options?: ResolverOptions);
/**
* Cancel all outstanding DNS queries made by this resolver. The corresponding
* callbacks will be called with an error with code `ECANCELLED`.
* @since v8.3.0
*/
cancel(): void;
getServers: typeof getServers;
resolve: typeof resolve;
resolve4: typeof resolve4;
resolve6: typeof resolve6;
resolveAny: typeof resolveAny;
resolveCaa: typeof resolveCaa;
resolveCname: typeof resolveCname;
resolveMx: typeof resolveMx;
resolveNaptr: typeof resolveNaptr;
resolveNs: typeof resolveNs;
resolvePtr: typeof resolvePtr;
resolveSoa: typeof resolveSoa;
resolveSrv: typeof resolveSrv;
resolveTxt: typeof resolveTxt;
reverse: typeof reverse;
/**
* The resolver instance will send its requests from the specified IP address.
* This allows programs to specify outbound interfaces when used on multi-homed
* systems.
*
* If a v4 or v6 address is not specified, it is set to the default and the
* operating system will choose a local address automatically.
*
* The resolver will use the v4 local address when making requests to IPv4 DNS
* servers, and the v6 local address when making requests to IPv6 DNS servers.
* The `rrtype` of resolution requests has no impact on the local address used.
* @since v15.1.0, v14.17.0
* @param [ipv4='0.0.0.0'] A string representation of an IPv4 address.
* @param [ipv6='::0'] A string representation of an IPv6 address.
*/
setLocalAddress(ipv4?: string, ipv6?: string): void;
setServers: typeof setServers;
}
export { dnsPromises as promises };
}
declare module "node:dns" {
export * from "dns";
}
+476
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@@ -0,0 +1,476 @@
/**
* The `dns.promises` API provides an alternative set of asynchronous DNS methods
* that return `Promise` objects rather than using callbacks. The API is accessible
* via `import { promises as dnsPromises } from 'node:dns'` or `import dnsPromises from 'node:dns/promises'`.
* @since v10.6.0
*/
declare module "dns/promises" {
import {
AnyRecord,
CaaRecord,
LookupAddress,
LookupAllOptions,
LookupOneOptions,
LookupOptions,
MxRecord,
NaptrRecord,
RecordWithTtl,
ResolveOptions,
ResolverOptions,
ResolveWithTtlOptions,
SoaRecord,
SrvRecord,
} from "node:dns";
/**
* Returns an array of IP address strings, formatted according to [RFC 5952](https://tools.ietf.org/html/rfc5952#section-6),
* that are currently configured for DNS resolution. A string will include a port
* section if a custom port is used.
*
* ```js
* [
* '4.4.4.4',
* '2001:4860:4860::8888',
* '4.4.4.4:1053',
* '[2001:4860:4860::8888]:1053',
* ]
* ```
* @since v10.6.0
*/
function getServers(): string[];
/**
* Resolves a host name (e.g. `'nodejs.org'`) into the first found A (IPv4) or
* AAAA (IPv6) record. All `option` properties are optional. If `options` is an
* integer, then it must be `4` or `6` if `options` is not provided, then IPv4
* and IPv6 addresses are both returned if found.
*
* With the `all` option set to `true`, the `Promise` is resolved with `addresses` being an array of objects with the properties `address` and `family`.
*
* On error, the `Promise` is rejected with an [`Error`](https://nodejs.org/docs/latest-v20.x/api/errors.html#class-error) object, where `err.code` is the error code.
* Keep in mind that `err.code` will be set to `'ENOTFOUND'` not only when
* the host name does not exist but also when the lookup fails in other ways
* such as no available file descriptors.
*
* [`dnsPromises.lookup()`](https://nodejs.org/docs/latest-v20.x/api/dns.html#dnspromiseslookuphostname-options) does not necessarily have anything to do with the DNS
* protocol. The implementation uses an operating system facility that can
* associate names with addresses and vice versa. This implementation can have
* subtle but important consequences on the behavior of any Node.js program. Please
* take some time to consult the [Implementation considerations section](https://nodejs.org/docs/latest-v20.x/api/dns.html#implementation-considerations) before
* using `dnsPromises.lookup()`.
*
* Example usage:
*
* ```js
* import dns from 'node:dns';
* const dnsPromises = dns.promises;
* const options = {
* family: 6,
* hints: dns.ADDRCONFIG | dns.V4MAPPED,
* };
*
* dnsPromises.lookup('example.com', options).then((result) => {
* console.log('address: %j family: IPv%s', result.address, result.family);
* // address: "2606:2800:220:1:248:1893:25c8:1946" family: IPv6
* });
*
* // When options.all is true, the result will be an Array.
* options.all = true;
* dnsPromises.lookup('example.com', options).then((result) => {
* console.log('addresses: %j', result);
* // addresses: [{"address":"2606:2800:220:1:248:1893:25c8:1946","family":6}]
* });
* ```
* @since v10.6.0
*/
function lookup(hostname: string, family: number): Promise<LookupAddress>;
function lookup(hostname: string, options: LookupOneOptions): Promise<LookupAddress>;
function lookup(hostname: string, options: LookupAllOptions): Promise<LookupAddress[]>;
function lookup(hostname: string, options: LookupOptions): Promise<LookupAddress | LookupAddress[]>;
function lookup(hostname: string): Promise<LookupAddress>;
/**
* Resolves the given `address` and `port` into a host name and service using
* the operating system's underlying `getnameinfo` implementation.
*
* If `address` is not a valid IP address, a `TypeError` will be thrown.
* The `port` will be coerced to a number. If it is not a legal port, a `TypeError` will be thrown.
*
* On error, the `Promise` is rejected with an [`Error`](https://nodejs.org/docs/latest-v20.x/api/errors.html#class-error) object, where `err.code` is the error code.
*
* ```js
* import dnsPromises from 'node:dns';
* dnsPromises.lookupService('127.0.0.1', 22).then((result) => {
* console.log(result.hostname, result.service);
* // Prints: localhost ssh
* });
* ```
* @since v10.6.0
*/
function lookupService(
address: string,
port: number,
): Promise<{
hostname: string;
service: string;
}>;
/**
* Uses the DNS protocol to resolve a host name (e.g. `'nodejs.org'`) into an array
* of the resource records. When successful, the `Promise` is resolved with an
* array of resource records. The type and structure of individual results vary
* based on `rrtype`:
*
* <omitted>
*
* On error, the `Promise` is rejected with an [`Error`](https://nodejs.org/docs/latest-v20.x/api/errors.html#class-error) object, where `err.code`
* is one of the [DNS error codes](https://nodejs.org/docs/latest-v20.x/api/dns.html#error-codes).
* @since v10.6.0
* @param hostname Host name to resolve.
* @param [rrtype='A'] Resource record type.
*/
function resolve(hostname: string): Promise<string[]>;
function resolve(hostname: string, rrtype: "A"): Promise<string[]>;
function resolve(hostname: string, rrtype: "AAAA"): Promise<string[]>;
function resolve(hostname: string, rrtype: "ANY"): Promise<AnyRecord[]>;
function resolve(hostname: string, rrtype: "CAA"): Promise<CaaRecord[]>;
function resolve(hostname: string, rrtype: "CNAME"): Promise<string[]>;
function resolve(hostname: string, rrtype: "MX"): Promise<MxRecord[]>;
function resolve(hostname: string, rrtype: "NAPTR"): Promise<NaptrRecord[]>;
function resolve(hostname: string, rrtype: "NS"): Promise<string[]>;
function resolve(hostname: string, rrtype: "PTR"): Promise<string[]>;
function resolve(hostname: string, rrtype: "SOA"): Promise<SoaRecord>;
function resolve(hostname: string, rrtype: "SRV"): Promise<SrvRecord[]>;
function resolve(hostname: string, rrtype: "TXT"): Promise<string[][]>;
function resolve(
hostname: string,
rrtype: string,
): Promise<string[] | MxRecord[] | NaptrRecord[] | SoaRecord | SrvRecord[] | string[][] | AnyRecord[]>;
/**
* Uses the DNS protocol to resolve IPv4 addresses (`A` records) for the `hostname`. On success, the `Promise` is resolved with an array of IPv4
* addresses (e.g. `['74.125.79.104', '74.125.79.105', '74.125.79.106']`).
* @since v10.6.0
* @param hostname Host name to resolve.
*/
function resolve4(hostname: string): Promise<string[]>;
function resolve4(hostname: string, options: ResolveWithTtlOptions): Promise<RecordWithTtl[]>;
function resolve4(hostname: string, options: ResolveOptions): Promise<string[] | RecordWithTtl[]>;
/**
* Uses the DNS protocol to resolve IPv6 addresses (`AAAA` records) for the `hostname`. On success, the `Promise` is resolved with an array of IPv6
* addresses.
* @since v10.6.0
* @param hostname Host name to resolve.
*/
function resolve6(hostname: string): Promise<string[]>;
function resolve6(hostname: string, options: ResolveWithTtlOptions): Promise<RecordWithTtl[]>;
function resolve6(hostname: string, options: ResolveOptions): Promise<string[] | RecordWithTtl[]>;
/**
* Uses the DNS protocol to resolve all records (also known as `ANY` or `*` query).
* On success, the `Promise` is resolved with an array containing various types of
* records. Each object has a property `type` that indicates the type of the
* current record. And depending on the `type`, additional properties will be
* present on the object:
*
* <omitted>
*
* Here is an example of the result object:
*
* ```js
* [ { type: 'A', address: '127.0.0.1', ttl: 299 },
* { type: 'CNAME', value: 'example.com' },
* { type: 'MX', exchange: 'alt4.aspmx.l.example.com', priority: 50 },
* { type: 'NS', value: 'ns1.example.com' },
* { type: 'TXT', entries: [ 'v=spf1 include:_spf.example.com ~all' ] },
* { type: 'SOA',
* nsname: 'ns1.example.com',
* hostmaster: 'admin.example.com',
* serial: 156696742,
* refresh: 900,
* retry: 900,
* expire: 1800,
* minttl: 60 } ]
* ```
* @since v10.6.0
*/
function resolveAny(hostname: string): Promise<AnyRecord[]>;
/**
* Uses the DNS protocol to resolve `CAA` records for the `hostname`. On success,
* the `Promise` is resolved with an array of objects containing available
* certification authority authorization records available for the `hostname` (e.g. `[{critical: 0, iodef: 'mailto:pki@example.com'},{critical: 128, issue: 'pki.example.com'}]`).
* @since v15.0.0, v14.17.0
*/
function resolveCaa(hostname: string): Promise<CaaRecord[]>;
/**
* Uses the DNS protocol to resolve `CNAME` records for the `hostname`. On success,
* the `Promise` is resolved with an array of canonical name records available for
* the `hostname` (e.g. `['bar.example.com']`).
* @since v10.6.0
*/
function resolveCname(hostname: string): Promise<string[]>;
/**
* Uses the DNS protocol to resolve mail exchange records (`MX` records) for the `hostname`. On success, the `Promise` is resolved with an array of objects
* containing both a `priority` and `exchange` property (e.g.`[{priority: 10, exchange: 'mx.example.com'}, ...]`).
* @since v10.6.0
*/
function resolveMx(hostname: string): Promise<MxRecord[]>;
/**
* Uses the DNS protocol to resolve regular expression-based records (`NAPTR` records) for the `hostname`. On success, the `Promise` is resolved with an array
* of objects with the following properties:
*
* * `flags`
* * `service`
* * `regexp`
* * `replacement`
* * `order`
* * `preference`
*
* ```js
* {
* flags: 's',
* service: 'SIP+D2U',
* regexp: '',
* replacement: '_sip._udp.example.com',
* order: 30,
* preference: 100
* }
* ```
* @since v10.6.0
*/
function resolveNaptr(hostname: string): Promise<NaptrRecord[]>;
/**
* Uses the DNS protocol to resolve name server records (`NS` records) for the `hostname`. On success, the `Promise` is resolved with an array of name server
* records available for `hostname` (e.g.`['ns1.example.com', 'ns2.example.com']`).
* @since v10.6.0
*/
function resolveNs(hostname: string): Promise<string[]>;
/**
* Uses the DNS protocol to resolve pointer records (`PTR` records) for the `hostname`. On success, the `Promise` is resolved with an array of strings
* containing the reply records.
* @since v10.6.0
*/
function resolvePtr(hostname: string): Promise<string[]>;
/**
* Uses the DNS protocol to resolve a start of authority record (`SOA` record) for
* the `hostname`. On success, the `Promise` is resolved with an object with the
* following properties:
*
* * `nsname`
* * `hostmaster`
* * `serial`
* * `refresh`
* * `retry`
* * `expire`
* * `minttl`
*
* ```js
* {
* nsname: 'ns.example.com',
* hostmaster: 'root.example.com',
* serial: 2013101809,
* refresh: 10000,
* retry: 2400,
* expire: 604800,
* minttl: 3600
* }
* ```
* @since v10.6.0
*/
function resolveSoa(hostname: string): Promise<SoaRecord>;
/**
* Uses the DNS protocol to resolve service records (`SRV` records) for the `hostname`. On success, the `Promise` is resolved with an array of objects with
* the following properties:
*
* * `priority`
* * `weight`
* * `port`
* * `name`
*
* ```js
* {
* priority: 10,
* weight: 5,
* port: 21223,
* name: 'service.example.com'
* }
* ```
* @since v10.6.0
*/
function resolveSrv(hostname: string): Promise<SrvRecord[]>;
/**
* Uses the DNS protocol to resolve text queries (`TXT` records) for the `hostname`. On success, the `Promise` is resolved with a two-dimensional array
* of the text records available for `hostname` (e.g.`[ ['v=spf1 ip4:0.0.0.0 ', '~all' ] ]`). Each sub-array contains TXT chunks of
* one record. Depending on the use case, these could be either joined together or
* treated separately.
* @since v10.6.0
*/
function resolveTxt(hostname: string): Promise<string[][]>;
/**
* Performs a reverse DNS query that resolves an IPv4 or IPv6 address to an
* array of host names.
*
* On error, the `Promise` is rejected with an [`Error`](https://nodejs.org/docs/latest-v20.x/api/errors.html#class-error) object, where `err.code`
* is one of the [DNS error codes](https://nodejs.org/docs/latest-v20.x/api/dns.html#error-codes).
* @since v10.6.0
*/
function reverse(ip: string): Promise<string[]>;
/**
* Get the default value for `verbatim` in {@link lookup} and [dnsPromises.lookup()](https://nodejs.org/docs/latest-v20.x/api/dns.html#dnspromiseslookuphostname-options).
* The value could be:
*
* * `ipv4first`: for `verbatim` defaulting to `false`.
* * `verbatim`: for `verbatim` defaulting to `true`.
* @since v20.1.0
*/
function getDefaultResultOrder(): "ipv4first" | "verbatim";
/**
* Sets the IP address and port of servers to be used when performing DNS
* resolution. The `servers` argument is an array of [RFC 5952](https://tools.ietf.org/html/rfc5952#section-6) formatted
* addresses. If the port is the IANA default DNS port (53) it can be omitted.
*
* ```js
* dnsPromises.setServers([
* '4.4.4.4',
* '[2001:4860:4860::8888]',
* '4.4.4.4:1053',
* '[2001:4860:4860::8888]:1053',
* ]);
* ```
*
* An error will be thrown if an invalid address is provided.
*
* The `dnsPromises.setServers()` method must not be called while a DNS query is in
* progress.
*
* This method works much like [resolve.conf](https://man7.org/linux/man-pages/man5/resolv.conf.5.html).
* That is, if attempting to resolve with the first server provided results in a `NOTFOUND` error, the `resolve()` method will _not_ attempt to resolve with
* subsequent servers provided. Fallback DNS servers will only be used if the
* earlier ones time out or result in some other error.
* @since v10.6.0
* @param servers array of `RFC 5952` formatted addresses
*/
function setServers(servers: readonly string[]): void;
/**
* Set the default value of `order` in `dns.lookup()` and `{@link lookup}`. The value could be:
*
* * `ipv4first`: sets default `order` to `ipv4first`.
* * `ipv6first`: sets default `order` to `ipv6first`.
* * `verbatim`: sets default `order` to `verbatim`.
*
* The default is `verbatim` and [dnsPromises.setDefaultResultOrder()](https://nodejs.org/docs/latest-v20.x/api/dns.html#dnspromisessetdefaultresultorderorder)
* have higher priority than [`--dns-result-order`](https://nodejs.org/docs/latest-v20.x/api/cli.html#--dns-result-orderorder).
* When using [worker threads](https://nodejs.org/docs/latest-v20.x/api/worker_threads.html), [`dnsPromises.setDefaultResultOrder()`](https://nodejs.org/docs/latest-v20.x/api/dns.html#dnspromisessetdefaultresultorderorder)
* from the main thread won't affect the default dns orders in workers.
* @since v16.4.0, v14.18.0
* @param order must be `'ipv4first'`, `'ipv6first'` or `'verbatim'`.
*/
function setDefaultResultOrder(order: "ipv4first" | "ipv6first" | "verbatim"): void;
// Error codes
const NODATA: "ENODATA";
const FORMERR: "EFORMERR";
const SERVFAIL: "ESERVFAIL";
const NOTFOUND: "ENOTFOUND";
const NOTIMP: "ENOTIMP";
const REFUSED: "EREFUSED";
const BADQUERY: "EBADQUERY";
const BADNAME: "EBADNAME";
const BADFAMILY: "EBADFAMILY";
const BADRESP: "EBADRESP";
const CONNREFUSED: "ECONNREFUSED";
const TIMEOUT: "ETIMEOUT";
const EOF: "EOF";
const FILE: "EFILE";
const NOMEM: "ENOMEM";
const DESTRUCTION: "EDESTRUCTION";
const BADSTR: "EBADSTR";
const BADFLAGS: "EBADFLAGS";
const NONAME: "ENONAME";
const BADHINTS: "EBADHINTS";
const NOTINITIALIZED: "ENOTINITIALIZED";
const LOADIPHLPAPI: "ELOADIPHLPAPI";
const ADDRGETNETWORKPARAMS: "EADDRGETNETWORKPARAMS";
const CANCELLED: "ECANCELLED";
/**
* An independent resolver for DNS requests.
*
* Creating a new resolver uses the default server settings. Setting
* the servers used for a resolver using [`resolver.setServers()`](https://nodejs.org/docs/latest-v20.x/api/dns.html#dnspromisessetserversservers) does not affect
* other resolvers:
*
* ```js
* import { promises } from 'node:dns';
* const resolver = new promises.Resolver();
* resolver.setServers(['4.4.4.4']);
*
* // This request will use the server at 4.4.4.4, independent of global settings.
* resolver.resolve4('example.org').then((addresses) => {
* // ...
* });
*
* // Alternatively, the same code can be written using async-await style.
* (async function() {
* const addresses = await resolver.resolve4('example.org');
* })();
* ```
*
* The following methods from the `dnsPromises` API are available:
*
* * `resolver.getServers()`
* * `resolver.resolve()`
* * `resolver.resolve4()`
* * `resolver.resolve6()`
* * `resolver.resolveAny()`
* * `resolver.resolveCaa()`
* * `resolver.resolveCname()`
* * `resolver.resolveMx()`
* * `resolver.resolveNaptr()`
* * `resolver.resolveNs()`
* * `resolver.resolvePtr()`
* * `resolver.resolveSoa()`
* * `resolver.resolveSrv()`
* * `resolver.resolveTxt()`
* * `resolver.reverse()`
* * `resolver.setServers()`
* @since v10.6.0
*/
class Resolver {
constructor(options?: ResolverOptions);
/**
* Cancel all outstanding DNS queries made by this resolver. The corresponding
* callbacks will be called with an error with code `ECANCELLED`.
* @since v8.3.0
*/
cancel(): void;
getServers: typeof getServers;
resolve: typeof resolve;
resolve4: typeof resolve4;
resolve6: typeof resolve6;
resolveAny: typeof resolveAny;
resolveCaa: typeof resolveCaa;
resolveCname: typeof resolveCname;
resolveMx: typeof resolveMx;
resolveNaptr: typeof resolveNaptr;
resolveNs: typeof resolveNs;
resolvePtr: typeof resolvePtr;
resolveSoa: typeof resolveSoa;
resolveSrv: typeof resolveSrv;
resolveTxt: typeof resolveTxt;
reverse: typeof reverse;
/**
* The resolver instance will send its requests from the specified IP address.
* This allows programs to specify outbound interfaces when used on multi-homed
* systems.
*
* If a v4 or v6 address is not specified, it is set to the default and the
* operating system will choose a local address automatically.
*
* The resolver will use the v4 local address when making requests to IPv4 DNS
* servers, and the v6 local address when making requests to IPv6 DNS servers.
* The `rrtype` of resolution requests has no impact on the local address used.
* @since v15.1.0, v14.17.0
* @param [ipv4='0.0.0.0'] A string representation of an IPv4 address.
* @param [ipv6='::0'] A string representation of an IPv6 address.
*/
setLocalAddress(ipv4?: string, ipv6?: string): void;
setServers: typeof setServers;
}
}
declare module "node:dns/promises" {
export * from "dns/promises";
}
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export {}; // Don't export anything!
//// DOM-like Events
// NB: The Event / EventTarget / EventListener implementations below were copied
// from lib.dom.d.ts, then edited to reflect Node's documentation at
// https://nodejs.org/api/events.html#class-eventtarget.
// Please read that link to understand important implementation differences.
// This conditional type will be the existing global Event in a browser, or
// the copy below in a Node environment.
type __Event = typeof globalThis extends { onmessage: any; Event: any } ? {}
: {
/** This is not used in Node.js and is provided purely for completeness. */
readonly bubbles: boolean;
/** Alias for event.stopPropagation(). This is not used in Node.js and is provided purely for completeness. */
cancelBubble: () => void;
/** True if the event was created with the cancelable option */
readonly cancelable: boolean;
/** This is not used in Node.js and is provided purely for completeness. */
readonly composed: boolean;
/** Returns an array containing the current EventTarget as the only entry or empty if the event is not being dispatched. This is not used in Node.js and is provided purely for completeness. */
composedPath(): [EventTarget?];
/** Alias for event.target. */
readonly currentTarget: EventTarget | null;
/** Is true if cancelable is true and event.preventDefault() has been called. */
readonly defaultPrevented: boolean;
/** This is not used in Node.js and is provided purely for completeness. */
readonly eventPhase: 0 | 2;
/** The `AbortSignal` "abort" event is emitted with `isTrusted` set to `true`. The value is `false` in all other cases. */
readonly isTrusted: boolean;
/** Sets the `defaultPrevented` property to `true` if `cancelable` is `true`. */
preventDefault(): void;
/** This is not used in Node.js and is provided purely for completeness. */
returnValue: boolean;
/** Alias for event.target. */
readonly srcElement: EventTarget | null;
/** Stops the invocation of event listeners after the current one completes. */
stopImmediatePropagation(): void;
/** This is not used in Node.js and is provided purely for completeness. */
stopPropagation(): void;
/** The `EventTarget` dispatching the event */
readonly target: EventTarget | null;
/** The millisecond timestamp when the Event object was created. */
readonly timeStamp: number;
/** Returns the type of event, e.g. "click", "hashchange", or "submit". */
readonly type: string;
};
// See comment above explaining conditional type
type __EventTarget = typeof globalThis extends { onmessage: any; EventTarget: any } ? {}
: {
/**
* Adds a new handler for the `type` event. Any given `listener` is added only once per `type` and per `capture` option value.
*
* If the `once` option is true, the `listener` is removed after the next time a `type` event is dispatched.
*
* The `capture` option is not used by Node.js in any functional way other than tracking registered event listeners per the `EventTarget` specification.
* Specifically, the `capture` option is used as part of the key when registering a `listener`.
* Any individual `listener` may be added once with `capture = false`, and once with `capture = true`.
*/
addEventListener(
type: string,
listener: EventListener | EventListenerObject,
options?: AddEventListenerOptions | boolean,
): void;
/** Dispatches a synthetic event event to target and returns true if either event's cancelable attribute value is false or its preventDefault() method was not invoked, and false otherwise. */
dispatchEvent(event: Event): boolean;
/** Removes the event listener in target's event listener list with the same type, callback, and options. */
removeEventListener(
type: string,
listener: EventListener | EventListenerObject,
options?: EventListenerOptions | boolean,
): void;
};
interface EventInit {
bubbles?: boolean;
cancelable?: boolean;
composed?: boolean;
}
interface EventListenerOptions {
/** Not directly used by Node.js. Added for API completeness. Default: `false`. */
capture?: boolean;
}
interface AddEventListenerOptions extends EventListenerOptions {
/** When `true`, the listener is automatically removed when it is first invoked. Default: `false`. */
once?: boolean;
/** When `true`, serves as a hint that the listener will not call the `Event` object's `preventDefault()` method. Default: false. */
passive?: boolean;
/** The listener will be removed when the given AbortSignal object's `abort()` method is called. */
signal?: AbortSignal;
}
interface EventListener {
(evt: Event): void;
}
interface EventListenerObject {
handleEvent(object: Event): void;
}
import {} from "events"; // Make this an ambient declaration
declare global {
/** An event which takes place in the DOM. */
interface Event extends __Event {}
var Event: typeof globalThis extends { onmessage: any; Event: infer T } ? T
: {
prototype: __Event;
new(type: string, eventInitDict?: EventInit): __Event;
};
/**
* EventTarget is a DOM interface implemented by objects that can
* receive events and may have listeners for them.
*/
interface EventTarget extends __EventTarget {}
var EventTarget: typeof globalThis extends { onmessage: any; EventTarget: infer T } ? T
: {
prototype: __EventTarget;
new(): __EventTarget;
};
}
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/**
* **This module is pending deprecation.** Once a replacement API has been
* finalized, this module will be fully deprecated. Most developers should
* **not** have cause to use this module. Users who absolutely must have
* the functionality that domains provide may rely on it for the time being
* but should expect to have to migrate to a different solution
* in the future.
*
* Domains provide a way to handle multiple different IO operations as a
* single group. If any of the event emitters or callbacks registered to a
* domain emit an `'error'` event, or throw an error, then the domain object
* will be notified, rather than losing the context of the error in the `process.on('uncaughtException')` handler, or causing the program to
* exit immediately with an error code.
* @deprecated Since v1.4.2 - Deprecated
* @see [source](https://github.com/nodejs/node/blob/v22.x/lib/domain.js)
*/
declare module "domain" {
import EventEmitter = require("node:events");
/**
* The `Domain` class encapsulates the functionality of routing errors and
* uncaught exceptions to the active `Domain` object.
*
* To handle the errors that it catches, listen to its `'error'` event.
*/
class Domain extends EventEmitter {
/**
* An array of timers and event emitters that have been explicitly added
* to the domain.
*/
members: Array<EventEmitter | NodeJS.Timer>;
/**
* The `enter()` method is plumbing used by the `run()`, `bind()`, and `intercept()` methods to set the active domain. It sets `domain.active` and `process.domain` to the domain, and implicitly
* pushes the domain onto the domain
* stack managed by the domain module (see {@link exit} for details on the
* domain stack). The call to `enter()` delimits the beginning of a chain of
* asynchronous calls and I/O operations bound to a domain.
*
* Calling `enter()` changes only the active domain, and does not alter the domain
* itself. `enter()` and `exit()` can be called an arbitrary number of times on a
* single domain.
*/
enter(): void;
/**
* The `exit()` method exits the current domain, popping it off the domain stack.
* Any time execution is going to switch to the context of a different chain of
* asynchronous calls, it's important to ensure that the current domain is exited.
* The call to `exit()` delimits either the end of or an interruption to the chain
* of asynchronous calls and I/O operations bound to a domain.
*
* If there are multiple, nested domains bound to the current execution context, `exit()` will exit any domains nested within this domain.
*
* Calling `exit()` changes only the active domain, and does not alter the domain
* itself. `enter()` and `exit()` can be called an arbitrary number of times on a
* single domain.
*/
exit(): void;
/**
* Run the supplied function in the context of the domain, implicitly
* binding all event emitters, timers, and low-level requests that are
* created in that context. Optionally, arguments can be passed to
* the function.
*
* This is the most basic way to use a domain.
*
* ```js
* import domain from 'node:domain';
* import fs from 'node:fs';
* const d = domain.create();
* d.on('error', (er) => {
* console.error('Caught error!', er);
* });
* d.run(() => {
* process.nextTick(() => {
* setTimeout(() => { // Simulating some various async stuff
* fs.open('non-existent file', 'r', (er, fd) => {
* if (er) throw er;
* // proceed...
* });
* }, 100);
* });
* });
* ```
*
* In this example, the `d.on('error')` handler will be triggered, rather
* than crashing the program.
*/
run<T>(fn: (...args: any[]) => T, ...args: any[]): T;
/**
* Explicitly adds an emitter to the domain. If any event handlers called by
* the emitter throw an error, or if the emitter emits an `'error'` event, it
* will be routed to the domain's `'error'` event, just like with implicit
* binding.
*
* This also works with timers that are returned from `setInterval()` and `setTimeout()`. If their callback function throws, it will be caught by
* the domain `'error'` handler.
*
* If the Timer or `EventEmitter` was already bound to a domain, it is removed
* from that one, and bound to this one instead.
* @param emitter emitter or timer to be added to the domain
*/
add(emitter: EventEmitter | NodeJS.Timer): void;
/**
* The opposite of {@link add}. Removes domain handling from the
* specified emitter.
* @param emitter emitter or timer to be removed from the domain
*/
remove(emitter: EventEmitter | NodeJS.Timer): void;
/**
* The returned function will be a wrapper around the supplied callback
* function. When the returned function is called, any errors that are
* thrown will be routed to the domain's `'error'` event.
*
* ```js
* const d = domain.create();
*
* function readSomeFile(filename, cb) {
* fs.readFile(filename, 'utf8', d.bind((er, data) => {
* // If this throws, it will also be passed to the domain.
* return cb(er, data ? JSON.parse(data) : null);
* }));
* }
*
* d.on('error', (er) => {
* // An error occurred somewhere. If we throw it now, it will crash the program
* // with the normal line number and stack message.
* });
* ```
* @param callback The callback function
* @return The bound function
*/
bind<T extends Function>(callback: T): T;
/**
* This method is almost identical to {@link bind}. However, in
* addition to catching thrown errors, it will also intercept `Error` objects sent as the first argument to the function.
*
* In this way, the common `if (err) return callback(err);` pattern can be replaced
* with a single error handler in a single place.
*
* ```js
* const d = domain.create();
*
* function readSomeFile(filename, cb) {
* fs.readFile(filename, 'utf8', d.intercept((data) => {
* // Note, the first argument is never passed to the
* // callback since it is assumed to be the 'Error' argument
* // and thus intercepted by the domain.
*
* // If this throws, it will also be passed to the domain
* // so the error-handling logic can be moved to the 'error'
* // event on the domain instead of being repeated throughout
* // the program.
* return cb(null, JSON.parse(data));
* }));
* }
*
* d.on('error', (er) => {
* // An error occurred somewhere. If we throw it now, it will crash the program
* // with the normal line number and stack message.
* });
* ```
* @param callback The callback function
* @return The intercepted function
*/
intercept<T extends Function>(callback: T): T;
}
function create(): Domain;
}
declare module "node:domain" {
export * from "domain";
}
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@@ -0,0 +1,931 @@
/**
* Much of the Node.js core API is built around an idiomatic asynchronous
* event-driven architecture in which certain kinds of objects (called "emitters")
* emit named events that cause `Function` objects ("listeners") to be called.
*
* For instance: a `net.Server` object emits an event each time a peer
* connects to it; a `fs.ReadStream` emits an event when the file is opened;
* a `stream` emits an event whenever data is available to be read.
*
* All objects that emit events are instances of the `EventEmitter` class. These
* objects expose an `eventEmitter.on()` function that allows one or more
* functions to be attached to named events emitted by the object. Typically,
* event names are camel-cased strings but any valid JavaScript property key
* can be used.
*
* When the `EventEmitter` object emits an event, all of the functions attached
* to that specific event are called _synchronously_. Any values returned by the
* called listeners are _ignored_ and discarded.
*
* The following example shows a simple `EventEmitter` instance with a single
* listener. The `eventEmitter.on()` method is used to register listeners, while
* the `eventEmitter.emit()` method is used to trigger the event.
*
* ```js
* import { EventEmitter } from 'node:events';
*
* class MyEmitter extends EventEmitter {}
*
* const myEmitter = new MyEmitter();
* myEmitter.on('event', () => {
* console.log('an event occurred!');
* });
* myEmitter.emit('event');
* ```
* @see [source](https://github.com/nodejs/node/blob/v22.x/lib/events.js)
*/
declare module "events" {
import { AsyncResource, AsyncResourceOptions } from "node:async_hooks";
// NOTE: This class is in the docs but is **not actually exported** by Node.
// If https://github.com/nodejs/node/issues/39903 gets resolved and Node
// actually starts exporting the class, uncomment below.
// import { EventListener, EventListenerObject } from '__dom-events';
// /** The NodeEventTarget is a Node.js-specific extension to EventTarget that emulates a subset of the EventEmitter API. */
// interface NodeEventTarget extends EventTarget {
// /**
// * Node.js-specific extension to the `EventTarget` class that emulates the equivalent `EventEmitter` API.
// * The only difference between `addListener()` and `addEventListener()` is that addListener() will return a reference to the EventTarget.
// */
// addListener(type: string, listener: EventListener | EventListenerObject, options?: { once: boolean }): this;
// /** Node.js-specific extension to the `EventTarget` class that returns an array of event `type` names for which event listeners are registered. */
// eventNames(): string[];
// /** Node.js-specific extension to the `EventTarget` class that returns the number of event listeners registered for the `type`. */
// listenerCount(type: string): number;
// /** Node.js-specific alias for `eventTarget.removeListener()`. */
// off(type: string, listener: EventListener | EventListenerObject): this;
// /** Node.js-specific alias for `eventTarget.addListener()`. */
// on(type: string, listener: EventListener | EventListenerObject, options?: { once: boolean }): this;
// /** Node.js-specific extension to the `EventTarget` class that adds a `once` listener for the given event `type`. This is equivalent to calling `on` with the `once` option set to `true`. */
// once(type: string, listener: EventListener | EventListenerObject): this;
// /**
// * Node.js-specific extension to the `EventTarget` class.
// * If `type` is specified, removes all registered listeners for `type`,
// * otherwise removes all registered listeners.
// */
// removeAllListeners(type: string): this;
// /**
// * Node.js-specific extension to the `EventTarget` class that removes the listener for the given `type`.
// * The only difference between `removeListener()` and `removeEventListener()` is that `removeListener()` will return a reference to the `EventTarget`.
// */
// removeListener(type: string, listener: EventListener | EventListenerObject): this;
// }
interface EventEmitterOptions {
/**
* Enables automatic capturing of promise rejection.
*/
captureRejections?: boolean | undefined;
}
interface StaticEventEmitterOptions {
/**
* Can be used to cancel awaiting events.
*/
signal?: AbortSignal | undefined;
}
interface StaticEventEmitterIteratorOptions extends StaticEventEmitterOptions {
/**
* Names of events that will end the iteration.
*/
close?: string[] | undefined;
/**
* The high watermark. The emitter is paused every time the size of events being buffered is higher than it.
* Supported only on emitters implementing `pause()` and `resume()` methods.
* @default Number.MAX_SAFE_INTEGER
*/
highWaterMark?: number | undefined;
/**
* The low watermark. The emitter is resumed every time the size of events being buffered is lower than it.
* Supported only on emitters implementing `pause()` and `resume()` methods.
* @default 1
*/
lowWaterMark?: number | undefined;
}
interface EventEmitter<T extends EventMap<T> = DefaultEventMap> extends NodeJS.EventEmitter<T> {}
type EventMap<T> = Record<keyof T, any[]> | DefaultEventMap;
type DefaultEventMap = [never];
type AnyRest = [...args: any[]];
type Args<K, T> = T extends DefaultEventMap ? AnyRest : (
K extends keyof T ? T[K] : never
);
type Key<K, T> = T extends DefaultEventMap ? string | symbol : K | keyof T;
type Key2<K, T> = T extends DefaultEventMap ? string | symbol : K & keyof T;
type Listener<K, T, F> = T extends DefaultEventMap ? F : (
K extends keyof T ? (
T[K] extends unknown[] ? (...args: T[K]) => void : never
)
: never
);
type Listener1<K, T> = Listener<K, T, (...args: any[]) => void>;
type Listener2<K, T> = Listener<K, T, Function>;
/**
* The `EventEmitter` class is defined and exposed by the `node:events` module:
*
* ```js
* import { EventEmitter } from 'node:events';
* ```
*
* All `EventEmitter`s emit the event `'newListener'` when new listeners are
* added and `'removeListener'` when existing listeners are removed.
*
* It supports the following option:
* @since v0.1.26
*/
class EventEmitter<T extends EventMap<T> = DefaultEventMap> {
constructor(options?: EventEmitterOptions);
[EventEmitter.captureRejectionSymbol]?<K>(error: Error, event: Key<K, T>, ...args: Args<K, T>): void;
/**
* Creates a `Promise` that is fulfilled when the `EventEmitter` emits the given
* event or that is rejected if the `EventEmitter` emits `'error'` while waiting.
* The `Promise` will resolve with an array of all the arguments emitted to the
* given event.
*
* This method is intentionally generic and works with the web platform [EventTarget](https://dom.spec.whatwg.org/#interface-eventtarget) interface, which has no special`'error'` event
* semantics and does not listen to the `'error'` event.
*
* ```js
* import { once, EventEmitter } from 'node:events';
* import process from 'node:process';
*
* const ee = new EventEmitter();
*
* process.nextTick(() => {
* ee.emit('myevent', 42);
* });
*
* const [value] = await once(ee, 'myevent');
* console.log(value);
*
* const err = new Error('kaboom');
* process.nextTick(() => {
* ee.emit('error', err);
* });
*
* try {
* await once(ee, 'myevent');
* } catch (err) {
* console.error('error happened', err);
* }
* ```
*
* The special handling of the `'error'` event is only used when `events.once()` is used to wait for another event. If `events.once()` is used to wait for the
* '`error'` event itself, then it is treated as any other kind of event without
* special handling:
*
* ```js
* import { EventEmitter, once } from 'node:events';
*
* const ee = new EventEmitter();
*
* once(ee, 'error')
* .then(([err]) => console.log('ok', err.message))
* .catch((err) => console.error('error', err.message));
*
* ee.emit('error', new Error('boom'));
*
* // Prints: ok boom
* ```
*
* An `AbortSignal` can be used to cancel waiting for the event:
*
* ```js
* import { EventEmitter, once } from 'node:events';
*
* const ee = new EventEmitter();
* const ac = new AbortController();
*
* async function foo(emitter, event, signal) {
* try {
* await once(emitter, event, { signal });
* console.log('event emitted!');
* } catch (error) {
* if (error.name === 'AbortError') {
* console.error('Waiting for the event was canceled!');
* } else {
* console.error('There was an error', error.message);
* }
* }
* }
*
* foo(ee, 'foo', ac.signal);
* ac.abort(); // Abort waiting for the event
* ee.emit('foo'); // Prints: Waiting for the event was canceled!
* ```
* @since v11.13.0, v10.16.0
*/
static once(
emitter: NodeJS.EventEmitter,
eventName: string | symbol,
options?: StaticEventEmitterOptions,
): Promise<any[]>;
static once(emitter: EventTarget, eventName: string, options?: StaticEventEmitterOptions): Promise<any[]>;
/**
* ```js
* import { on, EventEmitter } from 'node:events';
* import process from 'node:process';
*
* const ee = new EventEmitter();
*
* // Emit later on
* process.nextTick(() => {
* ee.emit('foo', 'bar');
* ee.emit('foo', 42);
* });
*
* for await (const event of on(ee, 'foo')) {
* // The execution of this inner block is synchronous and it
* // processes one event at a time (even with await). Do not use
* // if concurrent execution is required.
* console.log(event); // prints ['bar'] [42]
* }
* // Unreachable here
* ```
*
* Returns an `AsyncIterator` that iterates `eventName` events. It will throw
* if the `EventEmitter` emits `'error'`. It removes all listeners when
* exiting the loop. The `value` returned by each iteration is an array
* composed of the emitted event arguments.
*
* An `AbortSignal` can be used to cancel waiting on events:
*
* ```js
* import { on, EventEmitter } from 'node:events';
* import process from 'node:process';
*
* const ac = new AbortController();
*
* (async () => {
* const ee = new EventEmitter();
*
* // Emit later on
* process.nextTick(() => {
* ee.emit('foo', 'bar');
* ee.emit('foo', 42);
* });
*
* for await (const event of on(ee, 'foo', { signal: ac.signal })) {
* // The execution of this inner block is synchronous and it
* // processes one event at a time (even with await). Do not use
* // if concurrent execution is required.
* console.log(event); // prints ['bar'] [42]
* }
* // Unreachable here
* })();
*
* process.nextTick(() => ac.abort());
* ```
*
* Use the `close` option to specify an array of event names that will end the iteration:
*
* ```js
* import { on, EventEmitter } from 'node:events';
* import process from 'node:process';
*
* const ee = new EventEmitter();
*
* // Emit later on
* process.nextTick(() => {
* ee.emit('foo', 'bar');
* ee.emit('foo', 42);
* ee.emit('close');
* });
*
* for await (const event of on(ee, 'foo', { close: ['close'] })) {
* console.log(event); // prints ['bar'] [42]
* }
* // the loop will exit after 'close' is emitted
* console.log('done'); // prints 'done'
* ```
* @since v13.6.0, v12.16.0
* @return An `AsyncIterator` that iterates `eventName` events emitted by the `emitter`
*/
static on(
emitter: NodeJS.EventEmitter,
eventName: string | symbol,
options?: StaticEventEmitterIteratorOptions,
): NodeJS.AsyncIterator<any[]>;
static on(
emitter: EventTarget,
eventName: string,
options?: StaticEventEmitterIteratorOptions,
): NodeJS.AsyncIterator<any[]>;
/**
* A class method that returns the number of listeners for the given `eventName` registered on the given `emitter`.
*
* ```js
* import { EventEmitter, listenerCount } from 'node:events';
*
* const myEmitter = new EventEmitter();
* myEmitter.on('event', () => {});
* myEmitter.on('event', () => {});
* console.log(listenerCount(myEmitter, 'event'));
* // Prints: 2
* ```
* @since v0.9.12
* @deprecated Since v3.2.0 - Use `listenerCount` instead.
* @param emitter The emitter to query
* @param eventName The event name
*/
static listenerCount(emitter: NodeJS.EventEmitter, eventName: string | symbol): number;
/**
* Returns a copy of the array of listeners for the event named `eventName`.
*
* For `EventEmitter`s this behaves exactly the same as calling `.listeners` on
* the emitter.
*
* For `EventTarget`s this is the only way to get the event listeners for the
* event target. This is useful for debugging and diagnostic purposes.
*
* ```js
* import { getEventListeners, EventEmitter } from 'node:events';
*
* {
* const ee = new EventEmitter();
* const listener = () => console.log('Events are fun');
* ee.on('foo', listener);
* console.log(getEventListeners(ee, 'foo')); // [ [Function: listener] ]
* }
* {
* const et = new EventTarget();
* const listener = () => console.log('Events are fun');
* et.addEventListener('foo', listener);
* console.log(getEventListeners(et, 'foo')); // [ [Function: listener] ]
* }
* ```
* @since v15.2.0, v14.17.0
*/
static getEventListeners(emitter: EventTarget | NodeJS.EventEmitter, name: string | symbol): Function[];
/**
* Returns the currently set max amount of listeners.
*
* For `EventEmitter`s this behaves exactly the same as calling `.getMaxListeners` on
* the emitter.
*
* For `EventTarget`s this is the only way to get the max event listeners for the
* event target. If the number of event handlers on a single EventTarget exceeds
* the max set, the EventTarget will print a warning.
*
* ```js
* import { getMaxListeners, setMaxListeners, EventEmitter } from 'node:events';
*
* {
* const ee = new EventEmitter();
* console.log(getMaxListeners(ee)); // 10
* setMaxListeners(11, ee);
* console.log(getMaxListeners(ee)); // 11
* }
* {
* const et = new EventTarget();
* console.log(getMaxListeners(et)); // 10
* setMaxListeners(11, et);
* console.log(getMaxListeners(et)); // 11
* }
* ```
* @since v19.9.0
*/
static getMaxListeners(emitter: EventTarget | NodeJS.EventEmitter): number;
/**
* ```js
* import { setMaxListeners, EventEmitter } from 'node:events';
*
* const target = new EventTarget();
* const emitter = new EventEmitter();
*
* setMaxListeners(5, target, emitter);
* ```
* @since v15.4.0
* @param n A non-negative number. The maximum number of listeners per `EventTarget` event.
* @param eventTargets Zero or more {EventTarget} or {EventEmitter} instances. If none are specified, `n` is set as the default max for all newly created {EventTarget} and {EventEmitter}
* objects.
*/
static setMaxListeners(n?: number, ...eventTargets: Array<EventTarget | NodeJS.EventEmitter>): void;
/**
* Listens once to the `abort` event on the provided `signal`.
*
* Listening to the `abort` event on abort signals is unsafe and may
* lead to resource leaks since another third party with the signal can
* call `e.stopImmediatePropagation()`. Unfortunately Node.js cannot change
* this since it would violate the web standard. Additionally, the original
* API makes it easy to forget to remove listeners.
*
* This API allows safely using `AbortSignal`s in Node.js APIs by solving these
* two issues by listening to the event such that `stopImmediatePropagation` does
* not prevent the listener from running.
*
* Returns a disposable so that it may be unsubscribed from more easily.
*
* ```js
* import { addAbortListener } from 'node:events';
*
* function example(signal) {
* let disposable;
* try {
* signal.addEventListener('abort', (e) => e.stopImmediatePropagation());
* disposable = addAbortListener(signal, (e) => {
* // Do something when signal is aborted.
* });
* } finally {
* disposable?.[Symbol.dispose]();
* }
* }
* ```
* @since v20.5.0
* @experimental
* @return Disposable that removes the `abort` listener.
*/
static addAbortListener(signal: AbortSignal, resource: (event: Event) => void): Disposable;
/**
* This symbol shall be used to install a listener for only monitoring `'error'` events. Listeners installed using this symbol are called before the regular `'error'` listeners are called.
*
* Installing a listener using this symbol does not change the behavior once an `'error'` event is emitted. Therefore, the process will still crash if no
* regular `'error'` listener is installed.
* @since v13.6.0, v12.17.0
*/
static readonly errorMonitor: unique symbol;
/**
* Value: `Symbol.for('nodejs.rejection')`
*
* See how to write a custom `rejection handler`.
* @since v13.4.0, v12.16.0
*/
static readonly captureRejectionSymbol: unique symbol;
/**
* Value: [boolean](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Boolean_type)
*
* Change the default `captureRejections` option on all new `EventEmitter` objects.
* @since v13.4.0, v12.16.0
*/
static captureRejections: boolean;
/**
* By default, a maximum of `10` listeners can be registered for any single
* event. This limit can be changed for individual `EventEmitter` instances
* using the `emitter.setMaxListeners(n)` method. To change the default
* for _all_`EventEmitter` instances, the `events.defaultMaxListeners` property
* can be used. If this value is not a positive number, a `RangeError` is thrown.
*
* Take caution when setting the `events.defaultMaxListeners` because the
* change affects _all_ `EventEmitter` instances, including those created before
* the change is made. However, calling `emitter.setMaxListeners(n)` still has
* precedence over `events.defaultMaxListeners`.
*
* This is not a hard limit. The `EventEmitter` instance will allow
* more listeners to be added but will output a trace warning to stderr indicating
* that a "possible EventEmitter memory leak" has been detected. For any single
* `EventEmitter`, the `emitter.getMaxListeners()` and `emitter.setMaxListeners()` methods can be used to
* temporarily avoid this warning:
*
* ```js
* import { EventEmitter } from 'node:events';
* const emitter = new EventEmitter();
* emitter.setMaxListeners(emitter.getMaxListeners() + 1);
* emitter.once('event', () => {
* // do stuff
* emitter.setMaxListeners(Math.max(emitter.getMaxListeners() - 1, 0));
* });
* ```
*
* The `--trace-warnings` command-line flag can be used to display the
* stack trace for such warnings.
*
* The emitted warning can be inspected with `process.on('warning')` and will
* have the additional `emitter`, `type`, and `count` properties, referring to
* the event emitter instance, the event's name and the number of attached
* listeners, respectively.
* Its `name` property is set to `'MaxListenersExceededWarning'`.
* @since v0.11.2
*/
static defaultMaxListeners: number;
}
import internal = require("node:events");
namespace EventEmitter {
// Should just be `export { EventEmitter }`, but that doesn't work in TypeScript 3.4
export { internal as EventEmitter };
export interface Abortable {
/**
* When provided the corresponding `AbortController` can be used to cancel an asynchronous action.
*/
signal?: AbortSignal | undefined;
}
export interface EventEmitterReferencingAsyncResource extends AsyncResource {
readonly eventEmitter: EventEmitterAsyncResource;
}
export interface EventEmitterAsyncResourceOptions extends AsyncResourceOptions, EventEmitterOptions {
/**
* The type of async event, this is required when instantiating `EventEmitterAsyncResource`
* directly rather than as a child class.
* @default new.target.name if instantiated as a child class.
*/
name?: string;
}
/**
* Integrates `EventEmitter` with `AsyncResource` for `EventEmitter`s that
* require manual async tracking. Specifically, all events emitted by instances
* of `events.EventEmitterAsyncResource` will run within its `async context`.
*
* ```js
* import { EventEmitterAsyncResource, EventEmitter } from 'node:events';
* import { notStrictEqual, strictEqual } from 'node:assert';
* import { executionAsyncId, triggerAsyncId } from 'node:async_hooks';
*
* // Async tracking tooling will identify this as 'Q'.
* const ee1 = new EventEmitterAsyncResource({ name: 'Q' });
*
* // 'foo' listeners will run in the EventEmitters async context.
* ee1.on('foo', () => {
* strictEqual(executionAsyncId(), ee1.asyncId);
* strictEqual(triggerAsyncId(), ee1.triggerAsyncId);
* });
*
* const ee2 = new EventEmitter();
*
* // 'foo' listeners on ordinary EventEmitters that do not track async
* // context, however, run in the same async context as the emit().
* ee2.on('foo', () => {
* notStrictEqual(executionAsyncId(), ee2.asyncId);
* notStrictEqual(triggerAsyncId(), ee2.triggerAsyncId);
* });
*
* Promise.resolve().then(() => {
* ee1.emit('foo');
* ee2.emit('foo');
* });
* ```
*
* The `EventEmitterAsyncResource` class has the same methods and takes the
* same options as `EventEmitter` and `AsyncResource` themselves.
* @since v17.4.0, v16.14.0
*/
export class EventEmitterAsyncResource extends EventEmitter {
/**
* @param options Only optional in child class.
*/
constructor(options?: EventEmitterAsyncResourceOptions);
/**
* Call all `destroy` hooks. This should only ever be called once. An error will
* be thrown if it is called more than once. This **must** be manually called. If
* the resource is left to be collected by the GC then the `destroy` hooks will
* never be called.
*/
emitDestroy(): void;
/**
* The unique `asyncId` assigned to the resource.
*/
readonly asyncId: number;
/**
* The same triggerAsyncId that is passed to the AsyncResource constructor.
*/
readonly triggerAsyncId: number;
/**
* The returned `AsyncResource` object has an additional `eventEmitter` property
* that provides a reference to this `EventEmitterAsyncResource`.
*/
readonly asyncResource: EventEmitterReferencingAsyncResource;
}
}
global {
namespace NodeJS {
interface EventEmitter<T extends EventMap<T> = DefaultEventMap> {
[EventEmitter.captureRejectionSymbol]?<K>(error: Error, event: Key<K, T>, ...args: Args<K, T>): void;
/**
* Alias for `emitter.on(eventName, listener)`.
* @since v0.1.26
*/
addListener<K>(eventName: Key<K, T>, listener: Listener1<K, T>): this;
/**
* Adds the `listener` function to the end of the listeners array for the event
* named `eventName`. No checks are made to see if the `listener` has already
* been added. Multiple calls passing the same combination of `eventName` and
* `listener` will result in the `listener` being added, and called, multiple times.
*
* ```js
* server.on('connection', (stream) => {
* console.log('someone connected!');
* });
* ```
*
* Returns a reference to the `EventEmitter`, so that calls can be chained.
*
* By default, event listeners are invoked in the order they are added. The `emitter.prependListener()` method can be used as an alternative to add the
* event listener to the beginning of the listeners array.
*
* ```js
* import { EventEmitter } from 'node:events';
* const myEE = new EventEmitter();
* myEE.on('foo', () => console.log('a'));
* myEE.prependListener('foo', () => console.log('b'));
* myEE.emit('foo');
* // Prints:
* // b
* // a
* ```
* @since v0.1.101
* @param eventName The name of the event.
* @param listener The callback function
*/
on<K>(eventName: Key<K, T>, listener: Listener1<K, T>): this;
/**
* Adds a **one-time** `listener` function for the event named `eventName`. The
* next time `eventName` is triggered, this listener is removed and then invoked.
*
* ```js
* server.once('connection', (stream) => {
* console.log('Ah, we have our first user!');
* });
* ```
*
* Returns a reference to the `EventEmitter`, so that calls can be chained.
*
* By default, event listeners are invoked in the order they are added. The `emitter.prependOnceListener()` method can be used as an alternative to add the
* event listener to the beginning of the listeners array.
*
* ```js
* import { EventEmitter } from 'node:events';
* const myEE = new EventEmitter();
* myEE.once('foo', () => console.log('a'));
* myEE.prependOnceListener('foo', () => console.log('b'));
* myEE.emit('foo');
* // Prints:
* // b
* // a
* ```
* @since v0.3.0
* @param eventName The name of the event.
* @param listener The callback function
*/
once<K>(eventName: Key<K, T>, listener: Listener1<K, T>): this;
/**
* Removes the specified `listener` from the listener array for the event named `eventName`.
*
* ```js
* const callback = (stream) => {
* console.log('someone connected!');
* };
* server.on('connection', callback);
* // ...
* server.removeListener('connection', callback);
* ```
*
* `removeListener()` will remove, at most, one instance of a listener from the
* listener array. If any single listener has been added multiple times to the
* listener array for the specified `eventName`, then `removeListener()` must be
* called multiple times to remove each instance.
*
* Once an event is emitted, all listeners attached to it at the
* time of emitting are called in order. This implies that any `removeListener()` or `removeAllListeners()` calls _after_ emitting and _before_ the last listener finishes execution
* will not remove them from`emit()` in progress. Subsequent events behave as expected.
*
* ```js
* import { EventEmitter } from 'node:events';
* class MyEmitter extends EventEmitter {}
* const myEmitter = new MyEmitter();
*
* const callbackA = () => {
* console.log('A');
* myEmitter.removeListener('event', callbackB);
* };
*
* const callbackB = () => {
* console.log('B');
* };
*
* myEmitter.on('event', callbackA);
*
* myEmitter.on('event', callbackB);
*
* // callbackA removes listener callbackB but it will still be called.
* // Internal listener array at time of emit [callbackA, callbackB]
* myEmitter.emit('event');
* // Prints:
* // A
* // B
*
* // callbackB is now removed.
* // Internal listener array [callbackA]
* myEmitter.emit('event');
* // Prints:
* // A
* ```
*
* Because listeners are managed using an internal array, calling this will
* change the position indices of any listener registered _after_ the listener
* being removed. This will not impact the order in which listeners are called,
* but it means that any copies of the listener array as returned by
* the `emitter.listeners()` method will need to be recreated.
*
* When a single function has been added as a handler multiple times for a single
* event (as in the example below), `removeListener()` will remove the most
* recently added instance. In the example the `once('ping')` listener is removed:
*
* ```js
* import { EventEmitter } from 'node:events';
* const ee = new EventEmitter();
*
* function pong() {
* console.log('pong');
* }
*
* ee.on('ping', pong);
* ee.once('ping', pong);
* ee.removeListener('ping', pong);
*
* ee.emit('ping');
* ee.emit('ping');
* ```
*
* Returns a reference to the `EventEmitter`, so that calls can be chained.
* @since v0.1.26
*/
removeListener<K>(eventName: Key<K, T>, listener: Listener1<K, T>): this;
/**
* Alias for `emitter.removeListener()`.
* @since v10.0.0
*/
off<K>(eventName: Key<K, T>, listener: Listener1<K, T>): this;
/**
* Removes all listeners, or those of the specified `eventName`.
*
* It is bad practice to remove listeners added elsewhere in the code,
* particularly when the `EventEmitter` instance was created by some other
* component or module (e.g. sockets or file streams).
*
* Returns a reference to the `EventEmitter`, so that calls can be chained.
* @since v0.1.26
*/
removeAllListeners(eventName?: Key<unknown, T>): this;
/**
* By default `EventEmitter`s will print a warning if more than `10` listeners are
* added for a particular event. This is a useful default that helps finding
* memory leaks. The `emitter.setMaxListeners()` method allows the limit to be
* modified for this specific `EventEmitter` instance. The value can be set to `Infinity` (or `0`) to indicate an unlimited number of listeners.
*
* Returns a reference to the `EventEmitter`, so that calls can be chained.
* @since v0.3.5
*/
setMaxListeners(n: number): this;
/**
* Returns the current max listener value for the `EventEmitter` which is either
* set by `emitter.setMaxListeners(n)` or defaults to {@link defaultMaxListeners}.
* @since v1.0.0
*/
getMaxListeners(): number;
/**
* Returns a copy of the array of listeners for the event named `eventName`.
*
* ```js
* server.on('connection', (stream) => {
* console.log('someone connected!');
* });
* console.log(util.inspect(server.listeners('connection')));
* // Prints: [ [Function] ]
* ```
* @since v0.1.26
*/
listeners<K>(eventName: Key<K, T>): Array<Listener2<K, T>>;
/**
* Returns a copy of the array of listeners for the event named `eventName`,
* including any wrappers (such as those created by `.once()`).
*
* ```js
* import { EventEmitter } from 'node:events';
* const emitter = new EventEmitter();
* emitter.once('log', () => console.log('log once'));
*
* // Returns a new Array with a function `onceWrapper` which has a property
* // `listener` which contains the original listener bound above
* const listeners = emitter.rawListeners('log');
* const logFnWrapper = listeners[0];
*
* // Logs "log once" to the console and does not unbind the `once` event
* logFnWrapper.listener();
*
* // Logs "log once" to the console and removes the listener
* logFnWrapper();
*
* emitter.on('log', () => console.log('log persistently'));
* // Will return a new Array with a single function bound by `.on()` above
* const newListeners = emitter.rawListeners('log');
*
* // Logs "log persistently" twice
* newListeners[0]();
* emitter.emit('log');
* ```
* @since v9.4.0
*/
rawListeners<K>(eventName: Key<K, T>): Array<Listener2<K, T>>;
/**
* Synchronously calls each of the listeners registered for the event named `eventName`, in the order they were registered, passing the supplied arguments
* to each.
*
* Returns `true` if the event had listeners, `false` otherwise.
*
* ```js
* import { EventEmitter } from 'node:events';
* const myEmitter = new EventEmitter();
*
* // First listener
* myEmitter.on('event', function firstListener() {
* console.log('Helloooo! first listener');
* });
* // Second listener
* myEmitter.on('event', function secondListener(arg1, arg2) {
* console.log(`event with parameters ${arg1}, ${arg2} in second listener`);
* });
* // Third listener
* myEmitter.on('event', function thirdListener(...args) {
* const parameters = args.join(', ');
* console.log(`event with parameters ${parameters} in third listener`);
* });
*
* console.log(myEmitter.listeners('event'));
*
* myEmitter.emit('event', 1, 2, 3, 4, 5);
*
* // Prints:
* // [
* // [Function: firstListener],
* // [Function: secondListener],
* // [Function: thirdListener]
* // ]
* // Helloooo! first listener
* // event with parameters 1, 2 in second listener
* // event with parameters 1, 2, 3, 4, 5 in third listener
* ```
* @since v0.1.26
*/
emit<K>(eventName: Key<K, T>, ...args: Args<K, T>): boolean;
/**
* Returns the number of listeners listening for the event named `eventName`.
* If `listener` is provided, it will return how many times the listener is found
* in the list of the listeners of the event.
* @since v3.2.0
* @param eventName The name of the event being listened for
* @param listener The event handler function
*/
listenerCount<K>(eventName: Key<K, T>, listener?: Listener2<K, T>): number;
/**
* Adds the `listener` function to the _beginning_ of the listeners array for the
* event named `eventName`. No checks are made to see if the `listener` has
* already been added. Multiple calls passing the same combination of `eventName`
* and `listener` will result in the `listener` being added, and called, multiple times.
*
* ```js
* server.prependListener('connection', (stream) => {
* console.log('someone connected!');
* });
* ```
*
* Returns a reference to the `EventEmitter`, so that calls can be chained.
* @since v6.0.0
* @param eventName The name of the event.
* @param listener The callback function
*/
prependListener<K>(eventName: Key<K, T>, listener: Listener1<K, T>): this;
/**
* Adds a **one-time**`listener` function for the event named `eventName` to the _beginning_ of the listeners array. The next time `eventName` is triggered, this
* listener is removed, and then invoked.
*
* ```js
* server.prependOnceListener('connection', (stream) => {
* console.log('Ah, we have our first user!');
* });
* ```
*
* Returns a reference to the `EventEmitter`, so that calls can be chained.
* @since v6.0.0
* @param eventName The name of the event.
* @param listener The callback function
*/
prependOnceListener<K>(eventName: Key<K, T>, listener: Listener1<K, T>): this;
/**
* Returns an array listing the events for which the emitter has registered
* listeners. The values in the array are strings or `Symbol`s.
*
* ```js
* import { EventEmitter } from 'node:events';
*
* const myEE = new EventEmitter();
* myEE.on('foo', () => {});
* myEE.on('bar', () => {});
*
* const sym = Symbol('symbol');
* myEE.on(sym, () => {});
*
* console.log(myEE.eventNames());
* // Prints: [ 'foo', 'bar', Symbol(symbol) ]
* ```
* @since v6.0.0
*/
eventNames(): Array<(string | symbol) & Key2<unknown, T>>;
}
}
}
export = EventEmitter;
}
declare module "node:events" {
import events = require("events");
export = events;
}
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export {}; // Make this a module
// #region Fetch and friends
// Conditional type aliases, used at the end of this file.
// Will either be empty if lib.dom (or lib.webworker) is included, or the undici version otherwise.
type _Request = typeof globalThis extends { onmessage: any } ? {} : import("undici-types").Request;
type _Response = typeof globalThis extends { onmessage: any } ? {} : import("undici-types").Response;
type _FormData = typeof globalThis extends { onmessage: any } ? {} : import("undici-types").FormData;
type _Headers = typeof globalThis extends { onmessage: any } ? {} : import("undici-types").Headers;
type _MessageEvent = typeof globalThis extends { onmessage: any } ? {} : import("undici-types").MessageEvent;
type _RequestInit = typeof globalThis extends { onmessage: any } ? {}
: import("undici-types").RequestInit;
type _ResponseInit = typeof globalThis extends { onmessage: any } ? {}
: import("undici-types").ResponseInit;
type _WebSocket = typeof globalThis extends { onmessage: any } ? {} : import("undici-types").WebSocket;
type _EventSource = typeof globalThis extends { onmessage: any } ? {} : import("undici-types").EventSource;
// #endregion Fetch and friends
// Conditional type definitions for webstorage interface, which conflicts with lib.dom otherwise.
type _Storage = typeof globalThis extends { onabort: any } ? {} : {
/**
* Returns the number of key/value pairs.
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/Storage/length)
*/
readonly length: number;
/**
* Removes all key/value pairs, if there are any.
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/Storage/clear)
*/
clear(): void;
/**
* Returns the current value associated with the given key, or null if the given key does not exist.
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/Storage/getItem)
*/
getItem(key: string): string | null;
/**
* Returns the name of the nth key, or null if n is greater than or equal to the number of key/value pairs.
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/Storage/key)
*/
key(index: number): string | null;
/**
* Removes the key/value pair with the given key, if a key/value pair with the given key exists.
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/Storage/removeItem)
*/
removeItem(key: string): void;
/**
* Sets the value of the pair identified by key to value, creating a new key/value pair if none existed for key previously.
*
* Throws a "QuotaExceededError" DOMException exception if the new value couldn't be set.
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/Storage/setItem)
*/
setItem(key: string, value: string): void;
[key: string]: any;
};
// #region DOMException
type _DOMException = typeof globalThis extends { onmessage: any } ? {} : NodeDOMException;
interface NodeDOMException extends Error {
/**
* @deprecated
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMException/code)
*/
readonly code: number;
/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMException/message) */
readonly message: string;
/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMException/name) */
readonly name: string;
readonly INDEX_SIZE_ERR: 1;
readonly DOMSTRING_SIZE_ERR: 2;
readonly HIERARCHY_REQUEST_ERR: 3;
readonly WRONG_DOCUMENT_ERR: 4;
readonly INVALID_CHARACTER_ERR: 5;
readonly NO_DATA_ALLOWED_ERR: 6;
readonly NO_MODIFICATION_ALLOWED_ERR: 7;
readonly NOT_FOUND_ERR: 8;
readonly NOT_SUPPORTED_ERR: 9;
readonly INUSE_ATTRIBUTE_ERR: 10;
readonly INVALID_STATE_ERR: 11;
readonly SYNTAX_ERR: 12;
readonly INVALID_MODIFICATION_ERR: 13;
readonly NAMESPACE_ERR: 14;
readonly INVALID_ACCESS_ERR: 15;
readonly VALIDATION_ERR: 16;
readonly TYPE_MISMATCH_ERR: 17;
readonly SECURITY_ERR: 18;
readonly NETWORK_ERR: 19;
readonly ABORT_ERR: 20;
readonly URL_MISMATCH_ERR: 21;
readonly QUOTA_EXCEEDED_ERR: 22;
readonly TIMEOUT_ERR: 23;
readonly INVALID_NODE_TYPE_ERR: 24;
readonly DATA_CLONE_ERR: 25;
}
interface NodeDOMExceptionConstructor {
prototype: DOMException;
new(message?: string, nameOrOptions?: string | { name?: string; cause?: unknown }): DOMException;
readonly INDEX_SIZE_ERR: 1;
readonly DOMSTRING_SIZE_ERR: 2;
readonly HIERARCHY_REQUEST_ERR: 3;
readonly WRONG_DOCUMENT_ERR: 4;
readonly INVALID_CHARACTER_ERR: 5;
readonly NO_DATA_ALLOWED_ERR: 6;
readonly NO_MODIFICATION_ALLOWED_ERR: 7;
readonly NOT_FOUND_ERR: 8;
readonly NOT_SUPPORTED_ERR: 9;
readonly INUSE_ATTRIBUTE_ERR: 10;
readonly INVALID_STATE_ERR: 11;
readonly SYNTAX_ERR: 12;
readonly INVALID_MODIFICATION_ERR: 13;
readonly NAMESPACE_ERR: 14;
readonly INVALID_ACCESS_ERR: 15;
readonly VALIDATION_ERR: 16;
readonly TYPE_MISMATCH_ERR: 17;
readonly SECURITY_ERR: 18;
readonly NETWORK_ERR: 19;
readonly ABORT_ERR: 20;
readonly URL_MISMATCH_ERR: 21;
readonly QUOTA_EXCEEDED_ERR: 22;
readonly TIMEOUT_ERR: 23;
readonly INVALID_NODE_TYPE_ERR: 24;
readonly DATA_CLONE_ERR: 25;
}
// #endregion DOMException
declare global {
// Declare "static" methods in Error
interface ErrorConstructor {
/** Create .stack property on a target object */
captureStackTrace(targetObject: object, constructorOpt?: Function): void;
/**
* Optional override for formatting stack traces
*
* @see https://v8.dev/docs/stack-trace-api#customizing-stack-traces
*/
prepareStackTrace?: ((err: Error, stackTraces: NodeJS.CallSite[]) => any) | undefined;
stackTraceLimit: number;
}
/*-----------------------------------------------*
* *
* GLOBAL *
* *
------------------------------------------------*/
// For backwards compability
interface NodeRequire extends NodeJS.Require {}
interface RequireResolve extends NodeJS.RequireResolve {}
interface NodeModule extends NodeJS.Module {}
var global: typeof globalThis;
var process: NodeJS.Process;
var console: Console;
var __filename: string;
var __dirname: string;
var require: NodeRequire;
var module: NodeModule;
// Same as module.exports
var exports: any;
interface GCFunction {
(options: {
execution?: "sync";
flavor?: "regular" | "last-resort";
type?: "major-snapshot" | "major" | "minor";
filename?: string;
}): void;
(options: {
execution: "async";
flavor?: "regular" | "last-resort";
type?: "major-snapshot" | "major" | "minor";
filename?: string;
}): Promise<void>;
(options?: boolean): void;
}
/**
* Only available if `--expose-gc` is passed to the process.
*/
var gc: undefined | GCFunction;
// #region borrowed
// from https://github.com/microsoft/TypeScript/blob/38da7c600c83e7b31193a62495239a0fe478cb67/lib/lib.webworker.d.ts#L633 until moved to separate lib
/** A controller object that allows you to abort one or more DOM requests as and when desired. */
interface AbortController {
/**
* Returns the AbortSignal object associated with this object.
*/
readonly signal: AbortSignal;
/**
* Invoking this method will set this object's AbortSignal's aborted flag and signal to any observers that the associated activity is to be aborted.
*/
abort(reason?: any): void;
}
/** A signal object that allows you to communicate with a DOM request (such as a Fetch) and abort it if required via an AbortController object. */
interface AbortSignal extends EventTarget {
/**
* Returns true if this AbortSignal's AbortController has signaled to abort, and false otherwise.
*/
readonly aborted: boolean;
readonly reason: any;
onabort: null | ((this: AbortSignal, event: Event) => any);
throwIfAborted(): void;
}
var AbortController: typeof globalThis extends { onmessage: any; AbortController: infer T } ? T
: {
prototype: AbortController;
new(): AbortController;
};
var AbortSignal: typeof globalThis extends { onmessage: any; AbortSignal: infer T } ? T
: {
prototype: AbortSignal;
new(): AbortSignal;
abort(reason?: any): AbortSignal;
timeout(milliseconds: number): AbortSignal;
any(signals: AbortSignal[]): AbortSignal;
};
// #endregion borrowed
// #region Storage
/**
* This Web Storage API interface provides access to a particular domain's session or local storage. It allows, for example, the addition, modification, or deletion of stored data items.
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/Storage)
*/
interface Storage extends _Storage {}
// Conditional on `onabort` rather than `onmessage`, in order to exclude lib.webworker
var Storage: typeof globalThis extends { onabort: any; Storage: infer T } ? T
: {
prototype: Storage;
new(): Storage;
};
/**
* A browser-compatible implementation of [`localStorage`](https://developer.mozilla.org/en-US/docs/Web/API/Window/localStorage).
* Data is stored unencrypted in the file specified by the `--localstorage-file` CLI flag.
* Any modification of this data outside of the Web Storage API is not supported.
* Enable this API with the `--experimental-webstorage` CLI flag.
* @since v22.4.0
*/
var localStorage: Storage;
/**
* A browser-compatible implementation of [`sessionStorage`](https://developer.mozilla.org/en-US/docs/Web/API/Window/sessionStorage).
* Data is stored in memory, with a storage quota of 10 MB.
* Any modification of this data outside of the Web Storage API is not supported.
* Enable this API with the `--experimental-webstorage` CLI flag.
* @since v22.4.0
*/
var sessionStorage: Storage;
// #endregion Storage
/**
* @since v17.0.0
*
* Creates a deep clone of an object.
*/
function structuredClone<T>(
value: T,
transfer?: { transfer: ReadonlyArray<import("worker_threads").TransferListItem> },
): T;
// #region DOMException
/**
* @since v17.0.0
* An abnormal event (called an exception) which occurs as a result of calling a method or accessing a property of a web API.
*
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMException)
*/
interface DOMException extends _DOMException {}
/**
* @since v17.0.0
*
* The WHATWG `DOMException` class. See [DOMException](https://developer.mozilla.org/docs/Web/API/DOMException) for more details.
*/
var DOMException: typeof globalThis extends { onmessage: any; DOMException: infer T } ? T
: NodeDOMExceptionConstructor;
// #endregion DOMException
/*----------------------------------------------*
* *
* GLOBAL INTERFACES *
* *
*-----------------------------------------------*/
namespace NodeJS {
interface CallSite {
/**
* Value of "this"
*/
getThis(): unknown;
/**
* Type of "this" as a string.
* This is the name of the function stored in the constructor field of
* "this", if available. Otherwise the object's [[Class]] internal
* property.
*/
getTypeName(): string | null;
/**
* Current function
*/
getFunction(): Function | undefined;
/**
* Name of the current function, typically its name property.
* If a name property is not available an attempt will be made to try
* to infer a name from the function's context.
*/
getFunctionName(): string | null;
/**
* Name of the property [of "this" or one of its prototypes] that holds
* the current function
*/
getMethodName(): string | null;
/**
* Name of the script [if this function was defined in a script]
*/
getFileName(): string | undefined;
/**
* Current line number [if this function was defined in a script]
*/
getLineNumber(): number | null;
/**
* Current column number [if this function was defined in a script]
*/
getColumnNumber(): number | null;
/**
* A call site object representing the location where eval was called
* [if this function was created using a call to eval]
*/
getEvalOrigin(): string | undefined;
/**
* Is this a toplevel invocation, that is, is "this" the global object?
*/
isToplevel(): boolean;
/**
* Does this call take place in code defined by a call to eval?
*/
isEval(): boolean;
/**
* Is this call in native V8 code?
*/
isNative(): boolean;
/**
* Is this a constructor call?
*/
isConstructor(): boolean;
/**
* is this an async call (i.e. await, Promise.all(), or Promise.any())?
*/
isAsync(): boolean;
/**
* is this an async call to Promise.all()?
*/
isPromiseAll(): boolean;
/**
* returns the index of the promise element that was followed in
* Promise.all() or Promise.any() for async stack traces, or null
* if the CallSite is not an async
*/
getPromiseIndex(): number | null;
getScriptNameOrSourceURL(): string;
getScriptHash(): string;
getEnclosingColumnNumber(): number;
getEnclosingLineNumber(): number;
getPosition(): number;
toString(): string;
}
interface ErrnoException extends Error {
errno?: number | undefined;
code?: string | undefined;
path?: string | undefined;
syscall?: string | undefined;
}
interface ReadableStream extends EventEmitter {
readable: boolean;
read(size?: number): string | Buffer;
setEncoding(encoding: BufferEncoding): this;
pause(): this;
resume(): this;
isPaused(): boolean;
pipe<T extends WritableStream>(destination: T, options?: { end?: boolean | undefined }): T;
unpipe(destination?: WritableStream): this;
unshift(chunk: string | Uint8Array, encoding?: BufferEncoding): void;
wrap(oldStream: ReadableStream): this;
[Symbol.asyncIterator](): NodeJS.AsyncIterator<string | Buffer>;
}
interface WritableStream extends EventEmitter {
writable: boolean;
write(buffer: Uint8Array | string, cb?: (err?: Error | null) => void): boolean;
write(str: string, encoding?: BufferEncoding, cb?: (err?: Error | null) => void): boolean;
end(cb?: () => void): this;
end(data: string | Uint8Array, cb?: () => void): this;
end(str: string, encoding?: BufferEncoding, cb?: () => void): this;
}
interface ReadWriteStream extends ReadableStream, WritableStream {}
interface RefCounted {
ref(): this;
unref(): this;
}
interface Require {
(id: string): any;
resolve: RequireResolve;
cache: Dict<NodeModule>;
/**
* @deprecated
*/
extensions: RequireExtensions;
main: Module | undefined;
}
interface RequireResolve {
(id: string, options?: { paths?: string[] | undefined }): string;
paths(request: string): string[] | null;
}
interface RequireExtensions extends Dict<(m: Module, filename: string) => any> {
".js": (m: Module, filename: string) => any;
".json": (m: Module, filename: string) => any;
".node": (m: Module, filename: string) => any;
}
interface Module {
/**
* `true` if the module is running during the Node.js preload
*/
isPreloading: boolean;
exports: any;
require: Require;
id: string;
filename: string;
loaded: boolean;
/** @deprecated since v14.6.0 Please use `require.main` and `module.children` instead. */
parent: Module | null | undefined;
children: Module[];
/**
* @since v11.14.0
*
* The directory name of the module. This is usually the same as the path.dirname() of the module.id.
*/
path: string;
paths: string[];
}
interface Dict<T> {
[key: string]: T | undefined;
}
interface ReadOnlyDict<T> {
readonly [key: string]: T | undefined;
}
/** An iterable iterator returned by the Node.js API. */
// Default TReturn/TNext in v22 is `any`, for compatibility with the previously-used IterableIterator.
// TODO: In next major @types/node version, change default TReturn to undefined.
interface Iterator<T, TReturn = any, TNext = any> extends IteratorObject<T, TReturn, TNext> {
[Symbol.iterator](): NodeJS.Iterator<T, TReturn, TNext>;
}
/** An async iterable iterator returned by the Node.js API. */
// Default TReturn/TNext in v22 is `any`, for compatibility with the previously-used AsyncIterableIterator.
// TODO: In next major @types/node version, change default TReturn to undefined.
interface AsyncIterator<T, TReturn = any, TNext = any> extends AsyncIteratorObject<T, TReturn, TNext> {
[Symbol.asyncIterator](): NodeJS.AsyncIterator<T, TReturn, TNext>;
}
}
interface RequestInit extends _RequestInit {}
function fetch(
input: string | URL | globalThis.Request,
init?: RequestInit,
): Promise<Response>;
interface Request extends _Request {}
var Request: typeof globalThis extends {
onmessage: any;
Request: infer T;
} ? T
: typeof import("undici-types").Request;
interface ResponseInit extends _ResponseInit {}
interface Response extends _Response {}
var Response: typeof globalThis extends {
onmessage: any;
Response: infer T;
} ? T
: typeof import("undici-types").Response;
interface FormData extends _FormData {}
var FormData: typeof globalThis extends {
onmessage: any;
FormData: infer T;
} ? T
: typeof import("undici-types").FormData;
interface Headers extends _Headers {}
var Headers: typeof globalThis extends {
onmessage: any;
Headers: infer T;
} ? T
: typeof import("undici-types").Headers;
interface MessageEvent extends _MessageEvent {}
/**
* @since v15.0.0
*/
var MessageEvent: typeof globalThis extends {
onmessage: any;
MessageEvent: infer T;
} ? T
: typeof import("undici-types").MessageEvent;
interface WebSocket extends _WebSocket {}
var WebSocket: typeof globalThis extends { onmessage: any; WebSocket: infer T } ? T
: typeof import("undici-types").WebSocket;
interface EventSource extends _EventSource {}
/**
* Only available through the [--experimental-eventsource](https://nodejs.org/api/cli.html#--experimental-eventsource) flag.
*
* @since v22.3.0
*/
var EventSource: typeof globalThis extends { onmessage: any; EventSource: infer T } ? T
: typeof import("undici-types").EventSource;
}
+21
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@@ -0,0 +1,21 @@
export {}; // Make this a module
declare global {
namespace NodeJS {
type TypedArray<TArrayBuffer extends ArrayBufferLike = ArrayBufferLike> =
| Uint8Array<TArrayBuffer>
| Uint8ClampedArray<TArrayBuffer>
| Uint16Array<TArrayBuffer>
| Uint32Array<TArrayBuffer>
| Int8Array<TArrayBuffer>
| Int16Array<TArrayBuffer>
| Int32Array<TArrayBuffer>
| BigUint64Array<TArrayBuffer>
| BigInt64Array<TArrayBuffer>
| Float32Array<TArrayBuffer>
| Float64Array<TArrayBuffer>;
type ArrayBufferView<TArrayBuffer extends ArrayBufferLike = ArrayBufferLike> =
| TypedArray<TArrayBuffer>
| DataView<TArrayBuffer>;
}
}
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+543
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/**
* HTTPS is the HTTP protocol over TLS/SSL. In Node.js this is implemented as a
* separate module.
* @see [source](https://github.com/nodejs/node/blob/v22.x/lib/https.js)
*/
declare module "https" {
import { Duplex } from "node:stream";
import * as tls from "node:tls";
import * as http from "node:http";
import { URL } from "node:url";
type ServerOptions<
Request extends typeof http.IncomingMessage = typeof http.IncomingMessage,
Response extends typeof http.ServerResponse<InstanceType<Request>> = typeof http.ServerResponse,
> = tls.SecureContextOptions & tls.TlsOptions & http.ServerOptions<Request, Response>;
type RequestOptions =
& http.RequestOptions
& tls.SecureContextOptions
& {
checkServerIdentity?: typeof tls.checkServerIdentity | undefined;
rejectUnauthorized?: boolean | undefined; // Defaults to true
servername?: string | undefined; // SNI TLS Extension
};
interface AgentOptions extends http.AgentOptions, tls.ConnectionOptions {
maxCachedSessions?: number | undefined;
}
/**
* An `Agent` object for HTTPS similar to `http.Agent`. See {@link request} for more information.
* @since v0.4.5
*/
class Agent extends http.Agent {
constructor(options?: AgentOptions);
options: AgentOptions;
}
interface Server<
Request extends typeof http.IncomingMessage = typeof http.IncomingMessage,
Response extends typeof http.ServerResponse<InstanceType<Request>> = typeof http.ServerResponse,
> extends http.Server<Request, Response> {}
/**
* See `http.Server` for more information.
* @since v0.3.4
*/
class Server<
Request extends typeof http.IncomingMessage = typeof http.IncomingMessage,
Response extends typeof http.ServerResponse<InstanceType<Request>> = typeof http.ServerResponse,
> extends tls.Server {
constructor(requestListener?: http.RequestListener<Request, Response>);
constructor(
options: ServerOptions<Request, Response>,
requestListener?: http.RequestListener<Request, Response>,
);
/**
* Closes all connections connected to this server.
* @since v18.2.0
*/
closeAllConnections(): void;
/**
* Closes all connections connected to this server which are not sending a request or waiting for a response.
* @since v18.2.0
*/
closeIdleConnections(): void;
addListener(event: string, listener: (...args: any[]) => void): this;
addListener(event: "keylog", listener: (line: Buffer, tlsSocket: tls.TLSSocket) => void): this;
addListener(
event: "newSession",
listener: (sessionId: Buffer, sessionData: Buffer, callback: (err: Error, resp: Buffer) => void) => void,
): this;
addListener(
event: "OCSPRequest",
listener: (
certificate: Buffer,
issuer: Buffer,
callback: (err: Error | null, resp: Buffer) => void,
) => void,
): this;
addListener(
event: "resumeSession",
listener: (sessionId: Buffer, callback: (err: Error, sessionData: Buffer) => void) => void,
): this;
addListener(event: "secureConnection", listener: (tlsSocket: tls.TLSSocket) => void): this;
addListener(event: "tlsClientError", listener: (err: Error, tlsSocket: tls.TLSSocket) => void): this;
addListener(event: "close", listener: () => void): this;
addListener(event: "connection", listener: (socket: Duplex) => void): this;
addListener(event: "error", listener: (err: Error) => void): this;
addListener(event: "listening", listener: () => void): this;
addListener(event: "checkContinue", listener: http.RequestListener<Request, Response>): this;
addListener(event: "checkExpectation", listener: http.RequestListener<Request, Response>): this;
addListener(event: "clientError", listener: (err: Error, socket: Duplex) => void): this;
addListener(
event: "connect",
listener: (req: InstanceType<Request>, socket: Duplex, head: Buffer) => void,
): this;
addListener(event: "request", listener: http.RequestListener<Request, Response>): this;
addListener(
event: "upgrade",
listener: (req: InstanceType<Request>, socket: Duplex, head: Buffer) => void,
): this;
emit(event: string, ...args: any[]): boolean;
emit(event: "keylog", line: Buffer, tlsSocket: tls.TLSSocket): boolean;
emit(
event: "newSession",
sessionId: Buffer,
sessionData: Buffer,
callback: (err: Error, resp: Buffer) => void,
): boolean;
emit(
event: "OCSPRequest",
certificate: Buffer,
issuer: Buffer,
callback: (err: Error | null, resp: Buffer) => void,
): boolean;
emit(event: "resumeSession", sessionId: Buffer, callback: (err: Error, sessionData: Buffer) => void): boolean;
emit(event: "secureConnection", tlsSocket: tls.TLSSocket): boolean;
emit(event: "tlsClientError", err: Error, tlsSocket: tls.TLSSocket): boolean;
emit(event: "close"): boolean;
emit(event: "connection", socket: Duplex): boolean;
emit(event: "error", err: Error): boolean;
emit(event: "listening"): boolean;
emit(
event: "checkContinue",
req: InstanceType<Request>,
res: InstanceType<Response>,
): boolean;
emit(
event: "checkExpectation",
req: InstanceType<Request>,
res: InstanceType<Response>,
): boolean;
emit(event: "clientError", err: Error, socket: Duplex): boolean;
emit(event: "connect", req: InstanceType<Request>, socket: Duplex, head: Buffer): boolean;
emit(
event: "request",
req: InstanceType<Request>,
res: InstanceType<Response>,
): boolean;
emit(event: "upgrade", req: InstanceType<Request>, socket: Duplex, head: Buffer): boolean;
on(event: string, listener: (...args: any[]) => void): this;
on(event: "keylog", listener: (line: Buffer, tlsSocket: tls.TLSSocket) => void): this;
on(
event: "newSession",
listener: (sessionId: Buffer, sessionData: Buffer, callback: (err: Error, resp: Buffer) => void) => void,
): this;
on(
event: "OCSPRequest",
listener: (
certificate: Buffer,
issuer: Buffer,
callback: (err: Error | null, resp: Buffer) => void,
) => void,
): this;
on(
event: "resumeSession",
listener: (sessionId: Buffer, callback: (err: Error, sessionData: Buffer) => void) => void,
): this;
on(event: "secureConnection", listener: (tlsSocket: tls.TLSSocket) => void): this;
on(event: "tlsClientError", listener: (err: Error, tlsSocket: tls.TLSSocket) => void): this;
on(event: "close", listener: () => void): this;
on(event: "connection", listener: (socket: Duplex) => void): this;
on(event: "error", listener: (err: Error) => void): this;
on(event: "listening", listener: () => void): this;
on(event: "checkContinue", listener: http.RequestListener<Request, Response>): this;
on(event: "checkExpectation", listener: http.RequestListener<Request, Response>): this;
on(event: "clientError", listener: (err: Error, socket: Duplex) => void): this;
on(event: "connect", listener: (req: InstanceType<Request>, socket: Duplex, head: Buffer) => void): this;
on(event: "request", listener: http.RequestListener<Request, Response>): this;
on(event: "upgrade", listener: (req: InstanceType<Request>, socket: Duplex, head: Buffer) => void): this;
once(event: string, listener: (...args: any[]) => void): this;
once(event: "keylog", listener: (line: Buffer, tlsSocket: tls.TLSSocket) => void): this;
once(
event: "newSession",
listener: (sessionId: Buffer, sessionData: Buffer, callback: (err: Error, resp: Buffer) => void) => void,
): this;
once(
event: "OCSPRequest",
listener: (
certificate: Buffer,
issuer: Buffer,
callback: (err: Error | null, resp: Buffer) => void,
) => void,
): this;
once(
event: "resumeSession",
listener: (sessionId: Buffer, callback: (err: Error, sessionData: Buffer) => void) => void,
): this;
once(event: "secureConnection", listener: (tlsSocket: tls.TLSSocket) => void): this;
once(event: "tlsClientError", listener: (err: Error, tlsSocket: tls.TLSSocket) => void): this;
once(event: "close", listener: () => void): this;
once(event: "connection", listener: (socket: Duplex) => void): this;
once(event: "error", listener: (err: Error) => void): this;
once(event: "listening", listener: () => void): this;
once(event: "checkContinue", listener: http.RequestListener<Request, Response>): this;
once(event: "checkExpectation", listener: http.RequestListener<Request, Response>): this;
once(event: "clientError", listener: (err: Error, socket: Duplex) => void): this;
once(event: "connect", listener: (req: InstanceType<Request>, socket: Duplex, head: Buffer) => void): this;
once(event: "request", listener: http.RequestListener<Request, Response>): this;
once(event: "upgrade", listener: (req: InstanceType<Request>, socket: Duplex, head: Buffer) => void): this;
prependListener(event: string, listener: (...args: any[]) => void): this;
prependListener(event: "keylog", listener: (line: Buffer, tlsSocket: tls.TLSSocket) => void): this;
prependListener(
event: "newSession",
listener: (sessionId: Buffer, sessionData: Buffer, callback: (err: Error, resp: Buffer) => void) => void,
): this;
prependListener(
event: "OCSPRequest",
listener: (
certificate: Buffer,
issuer: Buffer,
callback: (err: Error | null, resp: Buffer) => void,
) => void,
): this;
prependListener(
event: "resumeSession",
listener: (sessionId: Buffer, callback: (err: Error, sessionData: Buffer) => void) => void,
): this;
prependListener(event: "secureConnection", listener: (tlsSocket: tls.TLSSocket) => void): this;
prependListener(event: "tlsClientError", listener: (err: Error, tlsSocket: tls.TLSSocket) => void): this;
prependListener(event: "close", listener: () => void): this;
prependListener(event: "connection", listener: (socket: Duplex) => void): this;
prependListener(event: "error", listener: (err: Error) => void): this;
prependListener(event: "listening", listener: () => void): this;
prependListener(event: "checkContinue", listener: http.RequestListener<Request, Response>): this;
prependListener(event: "checkExpectation", listener: http.RequestListener<Request, Response>): this;
prependListener(event: "clientError", listener: (err: Error, socket: Duplex) => void): this;
prependListener(
event: "connect",
listener: (req: InstanceType<Request>, socket: Duplex, head: Buffer) => void,
): this;
prependListener(event: "request", listener: http.RequestListener<Request, Response>): this;
prependListener(
event: "upgrade",
listener: (req: InstanceType<Request>, socket: Duplex, head: Buffer) => void,
): this;
prependOnceListener(event: string, listener: (...args: any[]) => void): this;
prependOnceListener(event: "keylog", listener: (line: Buffer, tlsSocket: tls.TLSSocket) => void): this;
prependOnceListener(
event: "newSession",
listener: (sessionId: Buffer, sessionData: Buffer, callback: (err: Error, resp: Buffer) => void) => void,
): this;
prependOnceListener(
event: "OCSPRequest",
listener: (
certificate: Buffer,
issuer: Buffer,
callback: (err: Error | null, resp: Buffer) => void,
) => void,
): this;
prependOnceListener(
event: "resumeSession",
listener: (sessionId: Buffer, callback: (err: Error, sessionData: Buffer) => void) => void,
): this;
prependOnceListener(event: "secureConnection", listener: (tlsSocket: tls.TLSSocket) => void): this;
prependOnceListener(event: "tlsClientError", listener: (err: Error, tlsSocket: tls.TLSSocket) => void): this;
prependOnceListener(event: "close", listener: () => void): this;
prependOnceListener(event: "connection", listener: (socket: Duplex) => void): this;
prependOnceListener(event: "error", listener: (err: Error) => void): this;
prependOnceListener(event: "listening", listener: () => void): this;
prependOnceListener(event: "checkContinue", listener: http.RequestListener<Request, Response>): this;
prependOnceListener(event: "checkExpectation", listener: http.RequestListener<Request, Response>): this;
prependOnceListener(event: "clientError", listener: (err: Error, socket: Duplex) => void): this;
prependOnceListener(
event: "connect",
listener: (req: InstanceType<Request>, socket: Duplex, head: Buffer) => void,
): this;
prependOnceListener(event: "request", listener: http.RequestListener<Request, Response>): this;
prependOnceListener(
event: "upgrade",
listener: (req: InstanceType<Request>, socket: Duplex, head: Buffer) => void,
): this;
}
/**
* ```js
* // curl -k https://localhost:8000/
* import https from 'node:https';
* import fs from 'node:fs';
*
* const options = {
* key: fs.readFileSync('test/fixtures/keys/agent2-key.pem'),
* cert: fs.readFileSync('test/fixtures/keys/agent2-cert.pem'),
* };
*
* https.createServer(options, (req, res) => {
* res.writeHead(200);
* res.end('hello world\n');
* }).listen(8000);
* ```
*
* Or
*
* ```js
* import https from 'node:https';
* import fs from 'node:fs';
*
* const options = {
* pfx: fs.readFileSync('test/fixtures/test_cert.pfx'),
* passphrase: 'sample',
* };
*
* https.createServer(options, (req, res) => {
* res.writeHead(200);
* res.end('hello world\n');
* }).listen(8000);
* ```
* @since v0.3.4
* @param options Accepts `options` from `createServer`, `createSecureContext` and `createServer`.
* @param requestListener A listener to be added to the `'request'` event.
*/
function createServer<
Request extends typeof http.IncomingMessage = typeof http.IncomingMessage,
Response extends typeof http.ServerResponse<InstanceType<Request>> = typeof http.ServerResponse,
>(requestListener?: http.RequestListener<Request, Response>): Server<Request, Response>;
function createServer<
Request extends typeof http.IncomingMessage = typeof http.IncomingMessage,
Response extends typeof http.ServerResponse<InstanceType<Request>> = typeof http.ServerResponse,
>(
options: ServerOptions<Request, Response>,
requestListener?: http.RequestListener<Request, Response>,
): Server<Request, Response>;
/**
* Makes a request to a secure web server.
*
* The following additional `options` from `tls.connect()` are also accepted: `ca`, `cert`, `ciphers`, `clientCertEngine`, `crl`, `dhparam`, `ecdhCurve`, `honorCipherOrder`, `key`, `passphrase`,
* `pfx`, `rejectUnauthorized`, `secureOptions`, `secureProtocol`, `servername`, `sessionIdContext`, `highWaterMark`.
*
* `options` can be an object, a string, or a `URL` object. If `options` is a
* string, it is automatically parsed with `new URL()`. If it is a `URL` object, it will be automatically converted to an ordinary `options` object.
*
* `https.request()` returns an instance of the `http.ClientRequest` class. The `ClientRequest` instance is a writable stream. If one needs to
* upload a file with a POST request, then write to the `ClientRequest` object.
*
* ```js
* import https from 'node:https';
*
* const options = {
* hostname: 'encrypted.google.com',
* port: 443,
* path: '/',
* method: 'GET',
* };
*
* const req = https.request(options, (res) => {
* console.log('statusCode:', res.statusCode);
* console.log('headers:', res.headers);
*
* res.on('data', (d) => {
* process.stdout.write(d);
* });
* });
*
* req.on('error', (e) => {
* console.error(e);
* });
* req.end();
* ```
*
* Example using options from `tls.connect()`:
*
* ```js
* const options = {
* hostname: 'encrypted.google.com',
* port: 443,
* path: '/',
* method: 'GET',
* key: fs.readFileSync('test/fixtures/keys/agent2-key.pem'),
* cert: fs.readFileSync('test/fixtures/keys/agent2-cert.pem'),
* };
* options.agent = new https.Agent(options);
*
* const req = https.request(options, (res) => {
* // ...
* });
* ```
*
* Alternatively, opt out of connection pooling by not using an `Agent`.
*
* ```js
* const options = {
* hostname: 'encrypted.google.com',
* port: 443,
* path: '/',
* method: 'GET',
* key: fs.readFileSync('test/fixtures/keys/agent2-key.pem'),
* cert: fs.readFileSync('test/fixtures/keys/agent2-cert.pem'),
* agent: false,
* };
*
* const req = https.request(options, (res) => {
* // ...
* });
* ```
*
* Example using a `URL` as `options`:
*
* ```js
* const options = new URL('https://abc:xyz@example.com');
*
* const req = https.request(options, (res) => {
* // ...
* });
* ```
*
* Example pinning on certificate fingerprint, or the public key (similar to`pin-sha256`):
*
* ```js
* import tls from 'node:tls';
* import https from 'node:https';
* import crypto from 'node:crypto';
*
* function sha256(s) {
* return crypto.createHash('sha256').update(s).digest('base64');
* }
* const options = {
* hostname: 'github.com',
* port: 443,
* path: '/',
* method: 'GET',
* checkServerIdentity: function(host, cert) {
* // Make sure the certificate is issued to the host we are connected to
* const err = tls.checkServerIdentity(host, cert);
* if (err) {
* return err;
* }
*
* // Pin the public key, similar to HPKP pin-sha256 pinning
* const pubkey256 = 'pL1+qb9HTMRZJmuC/bB/ZI9d302BYrrqiVuRyW+DGrU=';
* if (sha256(cert.pubkey) !== pubkey256) {
* const msg = 'Certificate verification error: ' +
* `The public key of '${cert.subject.CN}' ` +
* 'does not match our pinned fingerprint';
* return new Error(msg);
* }
*
* // Pin the exact certificate, rather than the pub key
* const cert256 = '25:FE:39:32:D9:63:8C:8A:FC:A1:9A:29:87:' +
* 'D8:3E:4C:1D:98:DB:71:E4:1A:48:03:98:EA:22:6A:BD:8B:93:16';
* if (cert.fingerprint256 !== cert256) {
* const msg = 'Certificate verification error: ' +
* `The certificate of '${cert.subject.CN}' ` +
* 'does not match our pinned fingerprint';
* return new Error(msg);
* }
*
* // This loop is informational only.
* // Print the certificate and public key fingerprints of all certs in the
* // chain. Its common to pin the public key of the issuer on the public
* // internet, while pinning the public key of the service in sensitive
* // environments.
* do {
* console.log('Subject Common Name:', cert.subject.CN);
* console.log(' Certificate SHA256 fingerprint:', cert.fingerprint256);
*
* hash = crypto.createHash('sha256');
* console.log(' Public key ping-sha256:', sha256(cert.pubkey));
*
* lastprint256 = cert.fingerprint256;
* cert = cert.issuerCertificate;
* } while (cert.fingerprint256 !== lastprint256);
*
* },
* };
*
* options.agent = new https.Agent(options);
* const req = https.request(options, (res) => {
* console.log('All OK. Server matched our pinned cert or public key');
* console.log('statusCode:', res.statusCode);
* // Print the HPKP values
* console.log('headers:', res.headers['public-key-pins']);
*
* res.on('data', (d) => {});
* });
*
* req.on('error', (e) => {
* console.error(e.message);
* });
* req.end();
* ```
*
* Outputs for example:
*
* ```text
* Subject Common Name: github.com
* Certificate SHA256 fingerprint: 25:FE:39:32:D9:63:8C:8A:FC:A1:9A:29:87:D8:3E:4C:1D:98:DB:71:E4:1A:48:03:98:EA:22:6A:BD:8B:93:16
* Public key ping-sha256: pL1+qb9HTMRZJmuC/bB/ZI9d302BYrrqiVuRyW+DGrU=
* Subject Common Name: DigiCert SHA2 Extended Validation Server CA
* Certificate SHA256 fingerprint: 40:3E:06:2A:26:53:05:91:13:28:5B:AF:80:A0:D4:AE:42:2C:84:8C:9F:78:FA:D0:1F:C9:4B:C5:B8:7F:EF:1A
* Public key ping-sha256: RRM1dGqnDFsCJXBTHky16vi1obOlCgFFn/yOhI/y+ho=
* Subject Common Name: DigiCert High Assurance EV Root CA
* Certificate SHA256 fingerprint: 74:31:E5:F4:C3:C1:CE:46:90:77:4F:0B:61:E0:54:40:88:3B:A9:A0:1E:D0:0B:A6:AB:D7:80:6E:D3:B1:18:CF
* Public key ping-sha256: WoiWRyIOVNa9ihaBciRSC7XHjliYS9VwUGOIud4PB18=
* All OK. Server matched our pinned cert or public key
* statusCode: 200
* headers: max-age=0; pin-sha256="WoiWRyIOVNa9ihaBciRSC7XHjliYS9VwUGOIud4PB18="; pin-sha256="RRM1dGqnDFsCJXBTHky16vi1obOlCgFFn/yOhI/y+ho=";
* pin-sha256="k2v657xBsOVe1PQRwOsHsw3bsGT2VzIqz5K+59sNQws="; pin-sha256="K87oWBWM9UZfyddvDfoxL+8lpNyoUB2ptGtn0fv6G2Q="; pin-sha256="IQBnNBEiFuhj+8x6X8XLgh01V9Ic5/V3IRQLNFFc7v4=";
* pin-sha256="iie1VXtL7HzAMF+/PVPR9xzT80kQxdZeJ+zduCB3uj0="; pin-sha256="LvRiGEjRqfzurezaWuj8Wie2gyHMrW5Q06LspMnox7A="; includeSubDomains
* ```
* @since v0.3.6
* @param options Accepts all `options` from `request`, with some differences in default values:
*/
function request(
options: RequestOptions | string | URL,
callback?: (res: http.IncomingMessage) => void,
): http.ClientRequest;
function request(
url: string | URL,
options: RequestOptions,
callback?: (res: http.IncomingMessage) => void,
): http.ClientRequest;
/**
* Like `http.get()` but for HTTPS.
*
* `options` can be an object, a string, or a `URL` object. If `options` is a
* string, it is automatically parsed with `new URL()`. If it is a `URL` object, it will be automatically converted to an ordinary `options` object.
*
* ```js
* import https from 'node:https';
*
* https.get('https://encrypted.google.com/', (res) => {
* console.log('statusCode:', res.statusCode);
* console.log('headers:', res.headers);
*
* res.on('data', (d) => {
* process.stdout.write(d);
* });
*
* }).on('error', (e) => {
* console.error(e);
* });
* ```
* @since v0.3.6
* @param options Accepts the same `options` as {@link request}, with the `method` always set to `GET`.
*/
function get(
options: RequestOptions | string | URL,
callback?: (res: http.IncomingMessage) => void,
): http.ClientRequest;
function get(
url: string | URL,
options: RequestOptions,
callback?: (res: http.IncomingMessage) => void,
): http.ClientRequest;
let globalAgent: Agent;
}
declare module "node:https" {
export * from "https";
}
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/**
* License for programmatically and manually incorporated
* documentation aka. `JSDoc` from https://github.com/nodejs/node/tree/master/doc
*
* Copyright Node.js contributors. All rights reserved.
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
// NOTE: These definitions support Node.js and TypeScript 5.7+.
// Reference required TypeScript libs:
/// <reference lib="es2020" />
// TypeScript backwards-compatibility definitions:
/// <reference path="compatibility/index.d.ts" />
// Definitions specific to TypeScript 5.7+:
/// <reference path="globals.typedarray.d.ts" />
/// <reference path="buffer.buffer.d.ts" />
// Definitions for Node.js modules that are not specific to any version of TypeScript:
/// <reference path="globals.d.ts" />
/// <reference path="assert.d.ts" />
/// <reference path="assert/strict.d.ts" />
/// <reference path="async_hooks.d.ts" />
/// <reference path="buffer.d.ts" />
/// <reference path="child_process.d.ts" />
/// <reference path="cluster.d.ts" />
/// <reference path="console.d.ts" />
/// <reference path="constants.d.ts" />
/// <reference path="crypto.d.ts" />
/// <reference path="dgram.d.ts" />
/// <reference path="diagnostics_channel.d.ts" />
/// <reference path="dns.d.ts" />
/// <reference path="dns/promises.d.ts" />
/// <reference path="dns/promises.d.ts" />
/// <reference path="domain.d.ts" />
/// <reference path="dom-events.d.ts" />
/// <reference path="events.d.ts" />
/// <reference path="fs.d.ts" />
/// <reference path="fs/promises.d.ts" />
/// <reference path="http.d.ts" />
/// <reference path="http2.d.ts" />
/// <reference path="https.d.ts" />
/// <reference path="inspector.d.ts" />
/// <reference path="module.d.ts" />
/// <reference path="net.d.ts" />
/// <reference path="os.d.ts" />
/// <reference path="path.d.ts" />
/// <reference path="perf_hooks.d.ts" />
/// <reference path="process.d.ts" />
/// <reference path="punycode.d.ts" />
/// <reference path="querystring.d.ts" />
/// <reference path="readline.d.ts" />
/// <reference path="readline/promises.d.ts" />
/// <reference path="repl.d.ts" />
/// <reference path="sea.d.ts" />
/// <reference path="sqlite.d.ts" />
/// <reference path="stream.d.ts" />
/// <reference path="stream/promises.d.ts" />
/// <reference path="stream/consumers.d.ts" />
/// <reference path="stream/web.d.ts" />
/// <reference path="string_decoder.d.ts" />
/// <reference path="test.d.ts" />
/// <reference path="timers.d.ts" />
/// <reference path="timers/promises.d.ts" />
/// <reference path="tls.d.ts" />
/// <reference path="trace_events.d.ts" />
/// <reference path="tty.d.ts" />
/// <reference path="url.d.ts" />
/// <reference path="util.d.ts" />
/// <reference path="v8.d.ts" />
/// <reference path="vm.d.ts" />
/// <reference path="wasi.d.ts" />
/// <reference path="worker_threads.d.ts" />
/// <reference path="zlib.d.ts" />
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/**
* @since v0.3.7
* @experimental
*/
declare module "module" {
import { URL } from "node:url";
import { MessagePort } from "node:worker_threads";
namespace Module {
/**
* The `module.syncBuiltinESMExports()` method updates all the live bindings for
* builtin `ES Modules` to match the properties of the `CommonJS` exports. It
* does not add or remove exported names from the `ES Modules`.
*
* ```js
* import fs from 'node:fs';
* import assert from 'node:assert';
* import { syncBuiltinESMExports } from 'node:module';
*
* fs.readFile = newAPI;
*
* delete fs.readFileSync;
*
* function newAPI() {
* // ...
* }
*
* fs.newAPI = newAPI;
*
* syncBuiltinESMExports();
*
* import('node:fs').then((esmFS) => {
* // It syncs the existing readFile property with the new value
* assert.strictEqual(esmFS.readFile, newAPI);
* // readFileSync has been deleted from the required fs
* assert.strictEqual('readFileSync' in fs, false);
* // syncBuiltinESMExports() does not remove readFileSync from esmFS
* assert.strictEqual('readFileSync' in esmFS, true);
* // syncBuiltinESMExports() does not add names
* assert.strictEqual(esmFS.newAPI, undefined);
* });
* ```
* @since v12.12.0
*/
function syncBuiltinESMExports(): void;
/**
* `path` is the resolved path for the file for which a corresponding source map
* should be fetched.
* @since v13.7.0, v12.17.0
* @return Returns `module.SourceMap` if a source map is found, `undefined` otherwise.
*/
function findSourceMap(path: string, error?: Error): SourceMap | undefined;
interface SourceMapPayload {
file: string;
version: number;
sources: string[];
sourcesContent: string[];
names: string[];
mappings: string;
sourceRoot: string;
}
interface SourceMapping {
generatedLine: number;
generatedColumn: number;
originalSource: string;
originalLine: number;
originalColumn: number;
}
interface SourceOrigin {
/**
* The name of the range in the source map, if one was provided
*/
name?: string;
/**
* The file name of the original source, as reported in the SourceMap
*/
fileName: string;
/**
* The 1-indexed lineNumber of the corresponding call site in the original source
*/
lineNumber: number;
/**
* The 1-indexed columnNumber of the corresponding call site in the original source
*/
columnNumber: number;
}
/**
* @since v13.7.0, v12.17.0
*/
class SourceMap {
/**
* Getter for the payload used to construct the `SourceMap` instance.
*/
readonly payload: SourceMapPayload;
constructor(payload: SourceMapPayload);
/**
* Given a line offset and column offset in the generated source
* file, returns an object representing the SourceMap range in the
* original file if found, or an empty object if not.
*
* The object returned contains the following keys:
*
* The returned value represents the raw range as it appears in the
* SourceMap, based on zero-indexed offsets, _not_ 1-indexed line and
* column numbers as they appear in Error messages and CallSite
* objects.
*
* To get the corresponding 1-indexed line and column numbers from a
* lineNumber and columnNumber as they are reported by Error stacks
* and CallSite objects, use `sourceMap.findOrigin(lineNumber, columnNumber)`
* @param lineOffset The zero-indexed line number offset in the generated source
* @param columnOffset The zero-indexed column number offset in the generated source
*/
findEntry(lineOffset: number, columnOffset: number): SourceMapping;
/**
* Given a 1-indexed `lineNumber` and `columnNumber` from a call site in the generated source,
* find the corresponding call site location in the original source.
*
* If the `lineNumber` and `columnNumber` provided are not found in any source map,
* then an empty object is returned.
* @param lineNumber The 1-indexed line number of the call site in the generated source
* @param columnNumber The 1-indexed column number of the call site in the generated source
*/
findOrigin(lineNumber: number, columnNumber: number): SourceOrigin | {};
}
interface ImportAttributes extends NodeJS.Dict<string> {
type?: string | undefined;
}
type ModuleFormat = "builtin" | "commonjs" | "json" | "module" | "wasm";
type ModuleSource = string | ArrayBuffer | NodeJS.TypedArray;
interface GlobalPreloadContext {
port: MessagePort;
}
/**
* @deprecated This hook will be removed in a future version.
* Use `initialize` instead. When a loader has an `initialize` export, `globalPreload` will be ignored.
*
* Sometimes it might be necessary to run some code inside of the same global scope that the application runs in.
* This hook allows the return of a string that is run as a sloppy-mode script on startup.
*
* @param context Information to assist the preload code
* @return Code to run before application startup
*/
type GlobalPreloadHook = (context: GlobalPreloadContext) => string;
/**
* The `initialize` hook provides a way to define a custom function that runs in the hooks thread
* when the hooks module is initialized. Initialization happens when the hooks module is registered via `register`.
*
* This hook can receive data from a `register` invocation, including ports and other transferrable objects.
* The return value of `initialize` can be a `Promise`, in which case it will be awaited before the main application thread execution resumes.
*/
type InitializeHook<Data = any> = (data: Data) => void | Promise<void>;
interface ResolveHookContext {
/**
* Export conditions of the relevant `package.json`
*/
conditions: string[];
/**
* An object whose key-value pairs represent the assertions for the module to import
*/
importAttributes: ImportAttributes;
/**
* The module importing this one, or undefined if this is the Node.js entry point
*/
parentURL: string | undefined;
}
interface ResolveFnOutput {
/**
* A hint to the load hook (it might be ignored)
*/
format?: ModuleFormat | null | undefined;
/**
* The import attributes to use when caching the module (optional; if excluded the input will be used)
*/
importAttributes?: ImportAttributes | undefined;
/**
* A signal that this hook intends to terminate the chain of `resolve` hooks.
* @default false
*/
shortCircuit?: boolean | undefined;
/**
* The absolute URL to which this input resolves
*/
url: string;
}
/**
* The `resolve` hook chain is responsible for resolving file URL for a given module specifier and parent URL, and optionally its format (such as `'module'`) as a hint to the `load` hook.
* If a format is specified, the load hook is ultimately responsible for providing the final `format` value (and it is free to ignore the hint provided by `resolve`);
* if `resolve` provides a format, a custom `load` hook is required even if only to pass the value to the Node.js default `load` hook.
*
* @param specifier The specified URL path of the module to be resolved
* @param context
* @param nextResolve The subsequent `resolve` hook in the chain, or the Node.js default `resolve` hook after the last user-supplied resolve hook
*/
type ResolveHook = (
specifier: string,
context: ResolveHookContext,
nextResolve: (
specifier: string,
context?: ResolveHookContext,
) => ResolveFnOutput | Promise<ResolveFnOutput>,
) => ResolveFnOutput | Promise<ResolveFnOutput>;
interface LoadHookContext {
/**
* Export conditions of the relevant `package.json`
*/
conditions: string[];
/**
* The format optionally supplied by the `resolve` hook chain
*/
format: ModuleFormat;
/**
* An object whose key-value pairs represent the assertions for the module to import
*/
importAttributes: ImportAttributes;
}
interface LoadFnOutput {
format: ModuleFormat;
/**
* A signal that this hook intends to terminate the chain of `resolve` hooks.
* @default false
*/
shortCircuit?: boolean | undefined;
/**
* The source for Node.js to evaluate
*/
source?: ModuleSource;
}
/**
* The `load` hook provides a way to define a custom method of determining how a URL should be interpreted, retrieved, and parsed.
* It is also in charge of validating the import assertion.
*
* @param url The URL/path of the module to be loaded
* @param context Metadata about the module
* @param nextLoad The subsequent `load` hook in the chain, or the Node.js default `load` hook after the last user-supplied `load` hook
*/
type LoadHook = (
url: string,
context: LoadHookContext,
nextLoad: (url: string, context?: LoadHookContext) => LoadFnOutput | Promise<LoadFnOutput>,
) => LoadFnOutput | Promise<LoadFnOutput>;
namespace constants {
/**
* The following constants are returned as the `status` field in the object returned by
* {@link enableCompileCache} to indicate the result of the attempt to enable the
* [module compile cache](https://nodejs.org/docs/latest-v22.x/api/module.html#module-compile-cache).
* @since v22.8.0
*/
namespace compileCacheStatus {
/**
* Node.js has enabled the compile cache successfully. The directory used to store the
* compile cache will be returned in the `directory` field in the
* returned object.
*/
const ENABLED: number;
/**
* The compile cache has already been enabled before, either by a previous call to
* {@link enableCompileCache}, or by the `NODE_COMPILE_CACHE=dir`
* environment variable. The directory used to store the
* compile cache will be returned in the `directory` field in the
* returned object.
*/
const ALREADY_ENABLED: number;
/**
* Node.js fails to enable the compile cache. This can be caused by the lack of
* permission to use the specified directory, or various kinds of file system errors.
* The detail of the failure will be returned in the `message` field in the
* returned object.
*/
const FAILED: number;
/**
* Node.js cannot enable the compile cache because the environment variable
* `NODE_DISABLE_COMPILE_CACHE=1` has been set.
*/
const DISABLED: number;
}
}
}
interface RegisterOptions<Data> {
parentURL: string | URL;
data?: Data | undefined;
transferList?: any[] | undefined;
}
interface EnableCompileCacheResult {
/**
* One of the {@link constants.compileCacheStatus}
*/
status: number;
/**
* If Node.js cannot enable the compile cache, this contains
* the error message. Only set if `status` is `module.constants.compileCacheStatus.FAILED`.
*/
message?: string;
/**
* If the compile cache is enabled, this contains the directory
* where the compile cache is stored. Only set if `status` is
* `module.constants.compileCacheStatus.ENABLED` or
* `module.constants.compileCacheStatus.ALREADY_ENABLED`.
*/
directory?: string;
}
interface Module extends NodeModule {}
class Module {
static runMain(): void;
static wrap(code: string): string;
static createRequire(path: string | URL): NodeRequire;
static builtinModules: string[];
static isBuiltin(moduleName: string): boolean;
static Module: typeof Module;
static register<Data = any>(
specifier: string | URL,
parentURL?: string | URL,
options?: RegisterOptions<Data>,
): void;
static register<Data = any>(specifier: string | URL, options?: RegisterOptions<Data>): void;
/**
* Enable [module compile cache](https://nodejs.org/docs/latest-v22.x/api/module.html#module-compile-cache)
* in the current Node.js instance.
*
* If `cacheDir` is not specified, Node.js will either use the directory specified by the
* `NODE_COMPILE_CACHE=dir` environment variable if it's set, or use
* `path.join(os.tmpdir(), 'node-compile-cache')` otherwise. For general use cases, it's
* recommended to call `module.enableCompileCache()` without specifying the `cacheDir`,
* so that the directory can be overridden by the `NODE_COMPILE_CACHE` environment
* variable when necessary.
*
* Since compile cache is supposed to be a quiet optimization that is not required for the
* application to be functional, this method is designed to not throw any exception when the
* compile cache cannot be enabled. Instead, it will return an object containing an error
* message in the `message` field to aid debugging.
* If compile cache is enabled successfully, the `directory` field in the returned object
* contains the path to the directory where the compile cache is stored. The `status`
* field in the returned object would be one of the `module.constants.compileCacheStatus`
* values to indicate the result of the attempt to enable the
* [module compile cache](https://nodejs.org/docs/latest-v22.x/api/module.html#module-compile-cache).
*
* This method only affects the current Node.js instance. To enable it in child worker threads,
* either call this method in child worker threads too, or set the
* `process.env.NODE_COMPILE_CACHE` value to compile cache directory so the behavior can
* be inherited into the child workers. The directory can be obtained either from the
* `directory` field returned by this method, or with {@link getCompileCacheDir}.
* @since v22.8.0
* @param cacheDir Optional path to specify the directory where the compile cache
* will be stored/retrieved.
*/
static enableCompileCache(cacheDir?: string): EnableCompileCacheResult;
/**
* @since v22.8.0
* @return Path to the [module compile cache](https://nodejs.org/docs/latest-v22.x/api/module.html#module-compile-cache)
* directory if it is enabled, or `undefined` otherwise.
*/
static getCompileCacheDir(): string | undefined;
/**
* Flush the [module compile cache](https://nodejs.org/docs/latest-v22.x/api/module.html#module-compile-cache)
* accumulated from modules already loaded
* in the current Node.js instance to disk. This returns after all the flushing
* file system operations come to an end, no matter they succeed or not. If there
* are any errors, this will fail silently, since compile cache misses should not
* interfere with the actual operation of the application.
* @since v22.10.0
*/
static flushCompileCache(): void;
constructor(id: string, parent?: Module);
}
global {
interface ImportMeta {
/**
* The directory name of the current module. This is the same as the `path.dirname()` of the `import.meta.filename`.
* **Caveat:** only present on `file:` modules.
*/
dirname: string;
/**
* The full absolute path and filename of the current module, with symlinks resolved.
* This is the same as the `url.fileURLToPath()` of the `import.meta.url`.
* **Caveat:** only local modules support this property. Modules not using the `file:` protocol will not provide it.
*/
filename: string;
/**
* The absolute `file:` URL of the module.
*/
url: string;
/**
* Provides a module-relative resolution function scoped to each module, returning
* the URL string.
*
* Second `parent` parameter is only used when the `--experimental-import-meta-resolve`
* command flag enabled.
*
* @since v20.6.0
*
* @param specifier The module specifier to resolve relative to `parent`.
* @param parent The absolute parent module URL to resolve from.
* @returns The absolute (`file:`) URL string for the resolved module.
*/
resolve(specifier: string, parent?: string | URL | undefined): string;
}
}
export = Module;
}
declare module "node:module" {
import module = require("module");
export = module;
}
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/**
* The `node:os` module provides operating system-related utility methods and
* properties. It can be accessed using:
*
* ```js
* import os from 'node:os';
* ```
* @see [source](https://github.com/nodejs/node/blob/v22.x/lib/os.js)
*/
declare module "os" {
interface CpuInfo {
model: string;
speed: number;
times: {
/** The number of milliseconds the CPU has spent in user mode. */
user: number;
/** The number of milliseconds the CPU has spent in nice mode. */
nice: number;
/** The number of milliseconds the CPU has spent in sys mode. */
sys: number;
/** The number of milliseconds the CPU has spent in idle mode. */
idle: number;
/** The number of milliseconds the CPU has spent in irq mode. */
irq: number;
};
}
interface NetworkInterfaceBase {
address: string;
netmask: string;
mac: string;
internal: boolean;
cidr: string | null;
}
interface NetworkInterfaceInfoIPv4 extends NetworkInterfaceBase {
family: "IPv4";
scopeid?: undefined;
}
interface NetworkInterfaceInfoIPv6 extends NetworkInterfaceBase {
family: "IPv6";
scopeid: number;
}
interface UserInfo<T> {
username: T;
uid: number;
gid: number;
shell: T | null;
homedir: T;
}
type NetworkInterfaceInfo = NetworkInterfaceInfoIPv4 | NetworkInterfaceInfoIPv6;
/**
* Returns the host name of the operating system as a string.
* @since v0.3.3
*/
function hostname(): string;
/**
* Returns an array containing the 1, 5, and 15 minute load averages.
*
* The load average is a measure of system activity calculated by the operating
* system and expressed as a fractional number.
*
* The load average is a Unix-specific concept. On Windows, the return value is
* always `[0, 0, 0]`.
* @since v0.3.3
*/
function loadavg(): number[];
/**
* Returns the system uptime in number of seconds.
* @since v0.3.3
*/
function uptime(): number;
/**
* Returns the amount of free system memory in bytes as an integer.
* @since v0.3.3
*/
function freemem(): number;
/**
* Returns the total amount of system memory in bytes as an integer.
* @since v0.3.3
*/
function totalmem(): number;
/**
* Returns an array of objects containing information about each logical CPU core.
* The array will be empty if no CPU information is available, such as if the `/proc` file system is unavailable.
*
* The properties included on each object include:
*
* ```js
* [
* {
* model: 'Intel(R) Core(TM) i7 CPU 860 @ 2.80GHz',
* speed: 2926,
* times: {
* user: 252020,
* nice: 0,
* sys: 30340,
* idle: 1070356870,
* irq: 0,
* },
* },
* {
* model: 'Intel(R) Core(TM) i7 CPU 860 @ 2.80GHz',
* speed: 2926,
* times: {
* user: 306960,
* nice: 0,
* sys: 26980,
* idle: 1071569080,
* irq: 0,
* },
* },
* {
* model: 'Intel(R) Core(TM) i7 CPU 860 @ 2.80GHz',
* speed: 2926,
* times: {
* user: 248450,
* nice: 0,
* sys: 21750,
* idle: 1070919370,
* irq: 0,
* },
* },
* {
* model: 'Intel(R) Core(TM) i7 CPU 860 @ 2.80GHz',
* speed: 2926,
* times: {
* user: 256880,
* nice: 0,
* sys: 19430,
* idle: 1070905480,
* irq: 20,
* },
* },
* ]
* ```
*
* `nice` values are POSIX-only. On Windows, the `nice` values of all processors
* are always 0.
*
* `os.cpus().length` should not be used to calculate the amount of parallelism
* available to an application. Use {@link availableParallelism} for this purpose.
* @since v0.3.3
*/
function cpus(): CpuInfo[];
/**
* Returns an estimate of the default amount of parallelism a program should use.
* Always returns a value greater than zero.
*
* This function is a small wrapper about libuv's [`uv_available_parallelism()`](https://docs.libuv.org/en/v1.x/misc.html#c.uv_available_parallelism).
* @since v19.4.0, v18.14.0
*/
function availableParallelism(): number;
/**
* Returns the operating system name as returned by [`uname(3)`](https://linux.die.net/man/3/uname). For example, it
* returns `'Linux'` on Linux, `'Darwin'` on macOS, and `'Windows_NT'` on Windows.
*
* See [https://en.wikipedia.org/wiki/Uname#Examples](https://en.wikipedia.org/wiki/Uname#Examples) for additional information
* about the output of running [`uname(3)`](https://linux.die.net/man/3/uname) on various operating systems.
* @since v0.3.3
*/
function type(): string;
/**
* Returns the operating system as a string.
*
* On POSIX systems, the operating system release is determined by calling [`uname(3)`](https://linux.die.net/man/3/uname). On Windows, `GetVersionExW()` is used. See
* [https://en.wikipedia.org/wiki/Uname#Examples](https://en.wikipedia.org/wiki/Uname#Examples) for more information.
* @since v0.3.3
*/
function release(): string;
/**
* Returns an object containing network interfaces that have been assigned a
* network address.
*
* Each key on the returned object identifies a network interface. The associated
* value is an array of objects that each describe an assigned network address.
*
* The properties available on the assigned network address object include:
*
* ```js
* {
* lo: [
* {
* address: '127.0.0.1',
* netmask: '255.0.0.0',
* family: 'IPv4',
* mac: '00:00:00:00:00:00',
* internal: true,
* cidr: '127.0.0.1/8'
* },
* {
* address: '::1',
* netmask: 'ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff',
* family: 'IPv6',
* mac: '00:00:00:00:00:00',
* scopeid: 0,
* internal: true,
* cidr: '::1/128'
* }
* ],
* eth0: [
* {
* address: '192.168.1.108',
* netmask: '255.255.255.0',
* family: 'IPv4',
* mac: '01:02:03:0a:0b:0c',
* internal: false,
* cidr: '192.168.1.108/24'
* },
* {
* address: 'fe80::a00:27ff:fe4e:66a1',
* netmask: 'ffff:ffff:ffff:ffff::',
* family: 'IPv6',
* mac: '01:02:03:0a:0b:0c',
* scopeid: 1,
* internal: false,
* cidr: 'fe80::a00:27ff:fe4e:66a1/64'
* }
* ]
* }
* ```
* @since v0.6.0
*/
function networkInterfaces(): NodeJS.Dict<NetworkInterfaceInfo[]>;
/**
* Returns the string path of the current user's home directory.
*
* On POSIX, it uses the `$HOME` environment variable if defined. Otherwise it
* uses the [effective UID](https://en.wikipedia.org/wiki/User_identifier#Effective_user_ID) to look up the user's home directory.
*
* On Windows, it uses the `USERPROFILE` environment variable if defined.
* Otherwise it uses the path to the profile directory of the current user.
* @since v2.3.0
*/
function homedir(): string;
/**
* Returns information about the currently effective user. On POSIX platforms,
* this is typically a subset of the password file. The returned object includes
* the `username`, `uid`, `gid`, `shell`, and `homedir`. On Windows, the `uid` and `gid` fields are `-1`, and `shell` is `null`.
*
* The value of `homedir` returned by `os.userInfo()` is provided by the operating
* system. This differs from the result of `os.homedir()`, which queries
* environment variables for the home directory before falling back to the
* operating system response.
*
* Throws a [`SystemError`](https://nodejs.org/docs/latest-v22.x/api/errors.html#class-systemerror) if a user has no `username` or `homedir`.
* @since v6.0.0
*/
function userInfo(options: { encoding: "buffer" }): UserInfo<Buffer>;
function userInfo(options?: { encoding: BufferEncoding }): UserInfo<string>;
type SignalConstants = {
[key in NodeJS.Signals]: number;
};
namespace constants {
const UV_UDP_REUSEADDR: number;
namespace signals {}
const signals: SignalConstants;
namespace errno {
const E2BIG: number;
const EACCES: number;
const EADDRINUSE: number;
const EADDRNOTAVAIL: number;
const EAFNOSUPPORT: number;
const EAGAIN: number;
const EALREADY: number;
const EBADF: number;
const EBADMSG: number;
const EBUSY: number;
const ECANCELED: number;
const ECHILD: number;
const ECONNABORTED: number;
const ECONNREFUSED: number;
const ECONNRESET: number;
const EDEADLK: number;
const EDESTADDRREQ: number;
const EDOM: number;
const EDQUOT: number;
const EEXIST: number;
const EFAULT: number;
const EFBIG: number;
const EHOSTUNREACH: number;
const EIDRM: number;
const EILSEQ: number;
const EINPROGRESS: number;
const EINTR: number;
const EINVAL: number;
const EIO: number;
const EISCONN: number;
const EISDIR: number;
const ELOOP: number;
const EMFILE: number;
const EMLINK: number;
const EMSGSIZE: number;
const EMULTIHOP: number;
const ENAMETOOLONG: number;
const ENETDOWN: number;
const ENETRESET: number;
const ENETUNREACH: number;
const ENFILE: number;
const ENOBUFS: number;
const ENODATA: number;
const ENODEV: number;
const ENOENT: number;
const ENOEXEC: number;
const ENOLCK: number;
const ENOLINK: number;
const ENOMEM: number;
const ENOMSG: number;
const ENOPROTOOPT: number;
const ENOSPC: number;
const ENOSR: number;
const ENOSTR: number;
const ENOSYS: number;
const ENOTCONN: number;
const ENOTDIR: number;
const ENOTEMPTY: number;
const ENOTSOCK: number;
const ENOTSUP: number;
const ENOTTY: number;
const ENXIO: number;
const EOPNOTSUPP: number;
const EOVERFLOW: number;
const EPERM: number;
const EPIPE: number;
const EPROTO: number;
const EPROTONOSUPPORT: number;
const EPROTOTYPE: number;
const ERANGE: number;
const EROFS: number;
const ESPIPE: number;
const ESRCH: number;
const ESTALE: number;
const ETIME: number;
const ETIMEDOUT: number;
const ETXTBSY: number;
const EWOULDBLOCK: number;
const EXDEV: number;
const WSAEINTR: number;
const WSAEBADF: number;
const WSAEACCES: number;
const WSAEFAULT: number;
const WSAEINVAL: number;
const WSAEMFILE: number;
const WSAEWOULDBLOCK: number;
const WSAEINPROGRESS: number;
const WSAEALREADY: number;
const WSAENOTSOCK: number;
const WSAEDESTADDRREQ: number;
const WSAEMSGSIZE: number;
const WSAEPROTOTYPE: number;
const WSAENOPROTOOPT: number;
const WSAEPROTONOSUPPORT: number;
const WSAESOCKTNOSUPPORT: number;
const WSAEOPNOTSUPP: number;
const WSAEPFNOSUPPORT: number;
const WSAEAFNOSUPPORT: number;
const WSAEADDRINUSE: number;
const WSAEADDRNOTAVAIL: number;
const WSAENETDOWN: number;
const WSAENETUNREACH: number;
const WSAENETRESET: number;
const WSAECONNABORTED: number;
const WSAECONNRESET: number;
const WSAENOBUFS: number;
const WSAEISCONN: number;
const WSAENOTCONN: number;
const WSAESHUTDOWN: number;
const WSAETOOMANYREFS: number;
const WSAETIMEDOUT: number;
const WSAECONNREFUSED: number;
const WSAELOOP: number;
const WSAENAMETOOLONG: number;
const WSAEHOSTDOWN: number;
const WSAEHOSTUNREACH: number;
const WSAENOTEMPTY: number;
const WSAEPROCLIM: number;
const WSAEUSERS: number;
const WSAEDQUOT: number;
const WSAESTALE: number;
const WSAEREMOTE: number;
const WSASYSNOTREADY: number;
const WSAVERNOTSUPPORTED: number;
const WSANOTINITIALISED: number;
const WSAEDISCON: number;
const WSAENOMORE: number;
const WSAECANCELLED: number;
const WSAEINVALIDPROCTABLE: number;
const WSAEINVALIDPROVIDER: number;
const WSAEPROVIDERFAILEDINIT: number;
const WSASYSCALLFAILURE: number;
const WSASERVICE_NOT_FOUND: number;
const WSATYPE_NOT_FOUND: number;
const WSA_E_NO_MORE: number;
const WSA_E_CANCELLED: number;
const WSAEREFUSED: number;
}
namespace dlopen {
const RTLD_LAZY: number;
const RTLD_NOW: number;
const RTLD_GLOBAL: number;
const RTLD_LOCAL: number;
const RTLD_DEEPBIND: number;
}
namespace priority {
const PRIORITY_LOW: number;
const PRIORITY_BELOW_NORMAL: number;
const PRIORITY_NORMAL: number;
const PRIORITY_ABOVE_NORMAL: number;
const PRIORITY_HIGH: number;
const PRIORITY_HIGHEST: number;
}
}
const devNull: string;
/**
* The operating system-specific end-of-line marker.
* * `\n` on POSIX
* * `\r\n` on Windows
*/
const EOL: string;
/**
* Returns the operating system CPU architecture for which the Node.js binary was
* compiled. Possible values are `'arm'`, `'arm64'`, `'ia32'`, `'loong64'`, `'mips'`, `'mipsel'`, `'ppc'`, `'ppc64'`, `'riscv64'`, `'s390'`, `'s390x'`,
* and `'x64'`.
*
* The return value is equivalent to [process.arch](https://nodejs.org/docs/latest-v22.x/api/process.html#processarch).
* @since v0.5.0
*/
function arch(): string;
/**
* Returns a string identifying the kernel version.
*
* On POSIX systems, the operating system release is determined by calling [`uname(3)`](https://linux.die.net/man/3/uname). On Windows, `RtlGetVersion()` is used, and if it is not
* available, `GetVersionExW()` will be used. See [https://en.wikipedia.org/wiki/Uname#Examples](https://en.wikipedia.org/wiki/Uname#Examples) for more information.
* @since v13.11.0, v12.17.0
*/
function version(): string;
/**
* Returns a string identifying the operating system platform for which
* the Node.js binary was compiled. The value is set at compile time.
* Possible values are `'aix'`, `'darwin'`, `'freebsd'`, `'linux'`, `'openbsd'`, `'sunos'`, and `'win32'`.
*
* The return value is equivalent to `process.platform`.
*
* The value `'android'` may also be returned if Node.js is built on the Android
* operating system. [Android support is experimental](https://github.com/nodejs/node/blob/HEAD/BUILDING.md#androidandroid-based-devices-eg-firefox-os).
* @since v0.5.0
*/
function platform(): NodeJS.Platform;
/**
* Returns the machine type as a string, such as `arm`, `arm64`, `aarch64`, `mips`, `mips64`, `ppc64`, `ppc64le`, `s390`, `s390x`, `i386`, `i686`, `x86_64`.
*
* On POSIX systems, the machine type is determined by calling [`uname(3)`](https://linux.die.net/man/3/uname). On Windows, `RtlGetVersion()` is used, and if it is not
* available, `GetVersionExW()` will be used. See [https://en.wikipedia.org/wiki/Uname#Examples](https://en.wikipedia.org/wiki/Uname#Examples) for more information.
* @since v18.9.0, v16.18.0
*/
function machine(): string;
/**
* Returns the operating system's default directory for temporary files as a
* string.
* @since v0.9.9
*/
function tmpdir(): string;
/**
* Returns a string identifying the endianness of the CPU for which the Node.js
* binary was compiled.
*
* Possible values are `'BE'` for big endian and `'LE'` for little endian.
* @since v0.9.4
*/
function endianness(): "BE" | "LE";
/**
* Returns the scheduling priority for the process specified by `pid`. If `pid` is
* not provided or is `0`, the priority of the current process is returned.
* @since v10.10.0
* @param [pid=0] The process ID to retrieve scheduling priority for.
*/
function getPriority(pid?: number): number;
/**
* Attempts to set the scheduling priority for the process specified by `pid`. If `pid` is not provided or is `0`, the process ID of the current process is used.
*
* The `priority` input must be an integer between `-20` (high priority) and `19` (low priority). Due to differences between Unix priority levels and Windows
* priority classes, `priority` is mapped to one of six priority constants in `os.constants.priority`. When retrieving a process priority level, this range
* mapping may cause the return value to be slightly different on Windows. To avoid
* confusion, set `priority` to one of the priority constants.
*
* On Windows, setting priority to `PRIORITY_HIGHEST` requires elevated user
* privileges. Otherwise the set priority will be silently reduced to `PRIORITY_HIGH`.
* @since v10.10.0
* @param [pid=0] The process ID to set scheduling priority for.
* @param priority The scheduling priority to assign to the process.
*/
function setPriority(priority: number): void;
function setPriority(pid: number, priority: number): void;
}
declare module "node:os" {
export * from "os";
}
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{
"name": "@types/node",
"version": "22.10.2",
"description": "TypeScript definitions for node",
"homepage": "https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/node",
"license": "MIT",
"contributors": [
{
"name": "Microsoft TypeScript",
"githubUsername": "Microsoft",
"url": "https://github.com/Microsoft"
},
{
"name": "Alberto Schiabel",
"githubUsername": "jkomyno",
"url": "https://github.com/jkomyno"
},
{
"name": "Alvis HT Tang",
"githubUsername": "alvis",
"url": "https://github.com/alvis"
},
{
"name": "Andrew Makarov",
"githubUsername": "r3nya",
"url": "https://github.com/r3nya"
},
{
"name": "Benjamin Toueg",
"githubUsername": "btoueg",
"url": "https://github.com/btoueg"
},
{
"name": "Chigozirim C.",
"githubUsername": "smac89",
"url": "https://github.com/smac89"
},
{
"name": "David Junger",
"githubUsername": "touffy",
"url": "https://github.com/touffy"
},
{
"name": "Deividas Bakanas",
"githubUsername": "DeividasBakanas",
"url": "https://github.com/DeividasBakanas"
},
{
"name": "Eugene Y. Q. Shen",
"githubUsername": "eyqs",
"url": "https://github.com/eyqs"
},
{
"name": "Hannes Magnusson",
"githubUsername": "Hannes-Magnusson-CK",
"url": "https://github.com/Hannes-Magnusson-CK"
},
{
"name": "Huw",
"githubUsername": "hoo29",
"url": "https://github.com/hoo29"
},
{
"name": "Kelvin Jin",
"githubUsername": "kjin",
"url": "https://github.com/kjin"
},
{
"name": "Klaus Meinhardt",
"githubUsername": "ajafff",
"url": "https://github.com/ajafff"
},
{
"name": "Lishude",
"githubUsername": "islishude",
"url": "https://github.com/islishude"
},
{
"name": "Mariusz Wiktorczyk",
"githubUsername": "mwiktorczyk",
"url": "https://github.com/mwiktorczyk"
},
{
"name": "Mohsen Azimi",
"githubUsername": "mohsen1",
"url": "https://github.com/mohsen1"
},
{
"name": "Nikita Galkin",
"githubUsername": "galkin",
"url": "https://github.com/galkin"
},
{
"name": "Parambir Singh",
"githubUsername": "parambirs",
"url": "https://github.com/parambirs"
},
{
"name": "Sebastian Silbermann",
"githubUsername": "eps1lon",
"url": "https://github.com/eps1lon"
},
{
"name": "Thomas den Hollander",
"githubUsername": "ThomasdenH",
"url": "https://github.com/ThomasdenH"
},
{
"name": "Wilco Bakker",
"githubUsername": "WilcoBakker",
"url": "https://github.com/WilcoBakker"
},
{
"name": "wwwy3y3",
"githubUsername": "wwwy3y3",
"url": "https://github.com/wwwy3y3"
},
{
"name": "Samuel Ainsworth",
"githubUsername": "samuela",
"url": "https://github.com/samuela"
},
{
"name": "Kyle Uehlein",
"githubUsername": "kuehlein",
"url": "https://github.com/kuehlein"
},
{
"name": "Thanik Bhongbhibhat",
"githubUsername": "bhongy",
"url": "https://github.com/bhongy"
},
{
"name": "Marcin Kopacz",
"githubUsername": "chyzwar",
"url": "https://github.com/chyzwar"
},
{
"name": "Trivikram Kamat",
"githubUsername": "trivikr",
"url": "https://github.com/trivikr"
},
{
"name": "Junxiao Shi",
"githubUsername": "yoursunny",
"url": "https://github.com/yoursunny"
},
{
"name": "Ilia Baryshnikov",
"githubUsername": "qwelias",
"url": "https://github.com/qwelias"
},
{
"name": "ExE Boss",
"githubUsername": "ExE-Boss",
"url": "https://github.com/ExE-Boss"
},
{
"name": "Piotr Błażejewicz",
"githubUsername": "peterblazejewicz",
"url": "https://github.com/peterblazejewicz"
},
{
"name": "Anna Henningsen",
"githubUsername": "addaleax",
"url": "https://github.com/addaleax"
},
{
"name": "Victor Perin",
"githubUsername": "victorperin",
"url": "https://github.com/victorperin"
},
{
"name": "NodeJS Contributors",
"githubUsername": "NodeJS",
"url": "https://github.com/NodeJS"
},
{
"name": "Linus Unnebäck",
"githubUsername": "LinusU",
"url": "https://github.com/LinusU"
},
{
"name": "wafuwafu13",
"githubUsername": "wafuwafu13",
"url": "https://github.com/wafuwafu13"
},
{
"name": "Matteo Collina",
"githubUsername": "mcollina",
"url": "https://github.com/mcollina"
},
{
"name": "Dmitry Semigradsky",
"githubUsername": "Semigradsky",
"url": "https://github.com/Semigradsky"
}
],
"main": "",
"types": "index.d.ts",
"typesVersions": {
"<=5.6": {
"*": [
"ts5.6/*"
]
}
},
"repository": {
"type": "git",
"url": "https://github.com/DefinitelyTyped/DefinitelyTyped.git",
"directory": "types/node"
},
"scripts": {},
"dependencies": {
"undici-types": "~6.20.0"
},
"peerDependencies": {},
"typesPublisherContentHash": "1c1003be2fa8d4f16936ac129ec72142249d4a14af58831bef4147ca7035833b",
"typeScriptVersion": "5.0"
}
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declare module "path/posix" {
import path = require("path");
export = path;
}
declare module "path/win32" {
import path = require("path");
export = path;
}
/**
* The `node:path` module provides utilities for working with file and directory
* paths. It can be accessed using:
*
* ```js
* import path from 'node:path';
* ```
* @see [source](https://github.com/nodejs/node/blob/v22.x/lib/path.js)
*/
declare module "path" {
namespace path {
/**
* A parsed path object generated by path.parse() or consumed by path.format().
*/
interface ParsedPath {
/**
* The root of the path such as '/' or 'c:\'
*/
root: string;
/**
* The full directory path such as '/home/user/dir' or 'c:\path\dir'
*/
dir: string;
/**
* The file name including extension (if any) such as 'index.html'
*/
base: string;
/**
* The file extension (if any) such as '.html'
*/
ext: string;
/**
* The file name without extension (if any) such as 'index'
*/
name: string;
}
interface FormatInputPathObject {
/**
* The root of the path such as '/' or 'c:\'
*/
root?: string | undefined;
/**
* The full directory path such as '/home/user/dir' or 'c:\path\dir'
*/
dir?: string | undefined;
/**
* The file name including extension (if any) such as 'index.html'
*/
base?: string | undefined;
/**
* The file extension (if any) such as '.html'
*/
ext?: string | undefined;
/**
* The file name without extension (if any) such as 'index'
*/
name?: string | undefined;
}
interface PlatformPath {
/**
* Normalize a string path, reducing '..' and '.' parts.
* When multiple slashes are found, they're replaced by a single one; when the path contains a trailing slash, it is preserved. On Windows backslashes are used.
*
* @param path string path to normalize.
* @throws {TypeError} if `path` is not a string.
*/
normalize(path: string): string;
/**
* Join all arguments together and normalize the resulting path.
*
* @param paths paths to join.
* @throws {TypeError} if any of the path segments is not a string.
*/
join(...paths: string[]): string;
/**
* The right-most parameter is considered {to}. Other parameters are considered an array of {from}.
*
* Starting from leftmost {from} parameter, resolves {to} to an absolute path.
*
* If {to} isn't already absolute, {from} arguments are prepended in right to left order,
* until an absolute path is found. If after using all {from} paths still no absolute path is found,
* the current working directory is used as well. The resulting path is normalized,
* and trailing slashes are removed unless the path gets resolved to the root directory.
*
* @param paths A sequence of paths or path segments.
* @throws {TypeError} if any of the arguments is not a string.
*/
resolve(...paths: string[]): string;
/**
* The `path.matchesGlob()` method determines if `path` matches the `pattern`.
* @param path The path to glob-match against.
* @param pattern The glob to check the path against.
* @returns Whether or not the `path` matched the `pattern`.
* @throws {TypeError} if `path` or `pattern` are not strings.
* @since v22.5.0
*/
matchesGlob(path: string, pattern: string): boolean;
/**
* Determines whether {path} is an absolute path. An absolute path will always resolve to the same location, regardless of the working directory.
*
* If the given {path} is a zero-length string, `false` will be returned.
*
* @param path path to test.
* @throws {TypeError} if `path` is not a string.
*/
isAbsolute(path: string): boolean;
/**
* Solve the relative path from {from} to {to} based on the current working directory.
* At times we have two absolute paths, and we need to derive the relative path from one to the other. This is actually the reverse transform of path.resolve.
*
* @throws {TypeError} if either `from` or `to` is not a string.
*/
relative(from: string, to: string): string;
/**
* Return the directory name of a path. Similar to the Unix dirname command.
*
* @param path the path to evaluate.
* @throws {TypeError} if `path` is not a string.
*/
dirname(path: string): string;
/**
* Return the last portion of a path. Similar to the Unix basename command.
* Often used to extract the file name from a fully qualified path.
*
* @param path the path to evaluate.
* @param suffix optionally, an extension to remove from the result.
* @throws {TypeError} if `path` is not a string or if `ext` is given and is not a string.
*/
basename(path: string, suffix?: string): string;
/**
* Return the extension of the path, from the last '.' to end of string in the last portion of the path.
* If there is no '.' in the last portion of the path or the first character of it is '.', then it returns an empty string.
*
* @param path the path to evaluate.
* @throws {TypeError} if `path` is not a string.
*/
extname(path: string): string;
/**
* The platform-specific file separator. '\\' or '/'.
*/
readonly sep: "\\" | "/";
/**
* The platform-specific file delimiter. ';' or ':'.
*/
readonly delimiter: ";" | ":";
/**
* Returns an object from a path string - the opposite of format().
*
* @param path path to evaluate.
* @throws {TypeError} if `path` is not a string.
*/
parse(path: string): ParsedPath;
/**
* Returns a path string from an object - the opposite of parse().
*
* @param pathObject path to evaluate.
*/
format(pathObject: FormatInputPathObject): string;
/**
* On Windows systems only, returns an equivalent namespace-prefixed path for the given path.
* If path is not a string, path will be returned without modifications.
* This method is meaningful only on Windows system.
* On POSIX systems, the method is non-operational and always returns path without modifications.
*/
toNamespacedPath(path: string): string;
/**
* Posix specific pathing.
* Same as parent object on posix.
*/
readonly posix: PlatformPath;
/**
* Windows specific pathing.
* Same as parent object on windows
*/
readonly win32: PlatformPath;
}
}
const path: path.PlatformPath;
export = path;
}
declare module "node:path" {
import path = require("path");
export = path;
}
declare module "node:path/posix" {
import path = require("path/posix");
export = path;
}
declare module "node:path/win32" {
import path = require("path/win32");
export = path;
}
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@@ -0,0 +1,965 @@
/**
* This module provides an implementation of a subset of the W3C [Web Performance APIs](https://w3c.github.io/perf-timing-primer/) as well as additional APIs for
* Node.js-specific performance measurements.
*
* Node.js supports the following [Web Performance APIs](https://w3c.github.io/perf-timing-primer/):
*
* * [High Resolution Time](https://www.w3.org/TR/hr-time-2)
* * [Performance Timeline](https://w3c.github.io/performance-timeline/)
* * [User Timing](https://www.w3.org/TR/user-timing/)
* * [Resource Timing](https://www.w3.org/TR/resource-timing-2/)
*
* ```js
* import { PerformanceObserver, performance } from 'node:perf_hooks';
*
* const obs = new PerformanceObserver((items) => {
* console.log(items.getEntries()[0].duration);
* performance.clearMarks();
* });
* obs.observe({ type: 'measure' });
* performance.measure('Start to Now');
*
* performance.mark('A');
* doSomeLongRunningProcess(() => {
* performance.measure('A to Now', 'A');
*
* performance.mark('B');
* performance.measure('A to B', 'A', 'B');
* });
* ```
* @see [source](https://github.com/nodejs/node/blob/v22.x/lib/perf_hooks.js)
*/
declare module "perf_hooks" {
import { AsyncResource } from "node:async_hooks";
type EntryType =
| "dns" // Node.js only
| "function" // Node.js only
| "gc" // Node.js only
| "http2" // Node.js only
| "http" // Node.js only
| "mark" // available on the Web
| "measure" // available on the Web
| "net" // Node.js only
| "node" // Node.js only
| "resource"; // available on the Web
interface NodeGCPerformanceDetail {
/**
* When `performanceEntry.entryType` is equal to 'gc', the `performance.kind` property identifies
* the type of garbage collection operation that occurred.
* See perf_hooks.constants for valid values.
*/
readonly kind?: number | undefined;
/**
* When `performanceEntry.entryType` is equal to 'gc', the `performance.flags`
* property contains additional information about garbage collection operation.
* See perf_hooks.constants for valid values.
*/
readonly flags?: number | undefined;
}
/**
* The constructor of this class is not exposed to users directly.
* @since v8.5.0
*/
class PerformanceEntry {
protected constructor();
/**
* The total number of milliseconds elapsed for this entry. This value will not
* be meaningful for all Performance Entry types.
* @since v8.5.0
*/
readonly duration: number;
/**
* The name of the performance entry.
* @since v8.5.0
*/
readonly name: string;
/**
* The high resolution millisecond timestamp marking the starting time of the
* Performance Entry.
* @since v8.5.0
*/
readonly startTime: number;
/**
* The type of the performance entry. It may be one of:
*
* * `'node'` (Node.js only)
* * `'mark'` (available on the Web)
* * `'measure'` (available on the Web)
* * `'gc'` (Node.js only)
* * `'function'` (Node.js only)
* * `'http2'` (Node.js only)
* * `'http'` (Node.js only)
* @since v8.5.0
*/
readonly entryType: EntryType;
/**
* Additional detail specific to the `entryType`.
* @since v16.0.0
*/
readonly detail?: NodeGCPerformanceDetail | unknown | undefined; // TODO: Narrow this based on entry type.
toJSON(): any;
}
/**
* Exposes marks created via the `Performance.mark()` method.
* @since v18.2.0, v16.17.0
*/
class PerformanceMark extends PerformanceEntry {
readonly duration: 0;
readonly entryType: "mark";
}
/**
* Exposes measures created via the `Performance.measure()` method.
*
* The constructor of this class is not exposed to users directly.
* @since v18.2.0, v16.17.0
*/
class PerformanceMeasure extends PerformanceEntry {
readonly entryType: "measure";
}
interface UVMetrics {
/**
* Number of event loop iterations.
*/
readonly loopCount: number;
/**
* Number of events that have been processed by the event handler.
*/
readonly events: number;
/**
* Number of events that were waiting to be processed when the event provider was called.
*/
readonly eventsWaiting: number;
}
/**
* _This property is an extension by Node.js. It is not available in Web browsers._
*
* Provides timing details for Node.js itself. The constructor of this class
* is not exposed to users.
* @since v8.5.0
*/
class PerformanceNodeTiming extends PerformanceEntry {
readonly entryType: "node";
/**
* The high resolution millisecond timestamp at which the Node.js process
* completed bootstrapping. If bootstrapping has not yet finished, the property
* has the value of -1.
* @since v8.5.0
*/
readonly bootstrapComplete: number;
/**
* The high resolution millisecond timestamp at which the Node.js environment was
* initialized.
* @since v8.5.0
*/
readonly environment: number;
/**
* The high resolution millisecond timestamp of the amount of time the event loop
* has been idle within the event loop's event provider (e.g. `epoll_wait`). This
* does not take CPU usage into consideration. If the event loop has not yet
* started (e.g., in the first tick of the main script), the property has the
* value of 0.
* @since v14.10.0, v12.19.0
*/
readonly idleTime: number;
/**
* The high resolution millisecond timestamp at which the Node.js event loop
* exited. If the event loop has not yet exited, the property has the value of -1\.
* It can only have a value of not -1 in a handler of the `'exit'` event.
* @since v8.5.0
*/
readonly loopExit: number;
/**
* The high resolution millisecond timestamp at which the Node.js event loop
* started. If the event loop has not yet started (e.g., in the first tick of the
* main script), the property has the value of -1.
* @since v8.5.0
*/
readonly loopStart: number;
/**
* The high resolution millisecond timestamp at which the Node.js process was initialized.
* @since v8.5.0
*/
readonly nodeStart: number;
/**
* This is a wrapper to the `uv_metrics_info` function.
* It returns the current set of event loop metrics.
*
* It is recommended to use this property inside a function whose execution was
* scheduled using `setImmediate` to avoid collecting metrics before finishing all
* operations scheduled during the current loop iteration.
* @since v22.8.0, v20.18.0
*/
readonly uvMetricsInfo: UVMetrics;
/**
* The high resolution millisecond timestamp at which the V8 platform was
* initialized.
* @since v8.5.0
*/
readonly v8Start: number;
}
interface EventLoopUtilization {
idle: number;
active: number;
utilization: number;
}
/**
* @param utilization1 The result of a previous call to `eventLoopUtilization()`.
* @param utilization2 The result of a previous call to `eventLoopUtilization()` prior to `utilization1`.
*/
type EventLoopUtilityFunction = (
utilization1?: EventLoopUtilization,
utilization2?: EventLoopUtilization,
) => EventLoopUtilization;
interface MarkOptions {
/**
* Additional optional detail to include with the mark.
*/
detail?: unknown | undefined;
/**
* An optional timestamp to be used as the mark time.
* @default `performance.now()`
*/
startTime?: number | undefined;
}
interface MeasureOptions {
/**
* Additional optional detail to include with the mark.
*/
detail?: unknown | undefined;
/**
* Duration between start and end times.
*/
duration?: number | undefined;
/**
* Timestamp to be used as the end time, or a string identifying a previously recorded mark.
*/
end?: number | string | undefined;
/**
* Timestamp to be used as the start time, or a string identifying a previously recorded mark.
*/
start?: number | string | undefined;
}
interface TimerifyOptions {
/**
* A histogram object created using `perf_hooks.createHistogram()` that will record runtime
* durations in nanoseconds.
*/
histogram?: RecordableHistogram | undefined;
}
interface Performance {
/**
* If `name` is not provided, removes all `PerformanceMark` objects from the Performance Timeline.
* If `name` is provided, removes only the named mark.
* @since v8.5.0
*/
clearMarks(name?: string): void;
/**
* If `name` is not provided, removes all `PerformanceMeasure` objects from the Performance Timeline.
* If `name` is provided, removes only the named measure.
* @since v16.7.0
*/
clearMeasures(name?: string): void;
/**
* If `name` is not provided, removes all `PerformanceResourceTiming` objects from the Resource Timeline.
* If `name` is provided, removes only the named resource.
* @since v18.2.0, v16.17.0
*/
clearResourceTimings(name?: string): void;
/**
* eventLoopUtilization is similar to CPU utilization except that it is calculated using high precision wall-clock time.
* It represents the percentage of time the event loop has spent outside the event loop's event provider (e.g. epoll_wait).
* No other CPU idle time is taken into consideration.
*/
eventLoopUtilization: EventLoopUtilityFunction;
/**
* Returns a list of `PerformanceEntry` objects in chronological order with respect to `performanceEntry.startTime`.
* If you are only interested in performance entries of certain types or that have certain names, see
* `performance.getEntriesByType()` and `performance.getEntriesByName()`.
* @since v16.7.0
*/
getEntries(): PerformanceEntry[];
/**
* Returns a list of `PerformanceEntry` objects in chronological order with respect to `performanceEntry.startTime`
* whose `performanceEntry.name` is equal to `name`, and optionally, whose `performanceEntry.entryType` is equal to `type`.
* @param name
* @param type
* @since v16.7.0
*/
getEntriesByName(name: string, type?: EntryType): PerformanceEntry[];
/**
* Returns a list of `PerformanceEntry` objects in chronological order with respect to `performanceEntry.startTime`
* whose `performanceEntry.entryType` is equal to `type`.
* @param type
* @since v16.7.0
*/
getEntriesByType(type: EntryType): PerformanceEntry[];
/**
* Creates a new `PerformanceMark` entry in the Performance Timeline.
* A `PerformanceMark` is a subclass of `PerformanceEntry` whose `performanceEntry.entryType` is always `'mark'`,
* and whose `performanceEntry.duration` is always `0`.
* Performance marks are used to mark specific significant moments in the Performance Timeline.
*
* The created `PerformanceMark` entry is put in the global Performance Timeline and can be queried with
* `performance.getEntries`, `performance.getEntriesByName`, and `performance.getEntriesByType`. When the observation is
* performed, the entries should be cleared from the global Performance Timeline manually with `performance.clearMarks`.
* @param name
*/
mark(name: string, options?: MarkOptions): PerformanceMark;
/**
* Creates a new `PerformanceResourceTiming` entry in the Resource Timeline.
* A `PerformanceResourceTiming` is a subclass of `PerformanceEntry` whose `performanceEntry.entryType` is always `'resource'`.
* Performance resources are used to mark moments in the Resource Timeline.
* @param timingInfo [Fetch Timing Info](https://fetch.spec.whatwg.org/#fetch-timing-info)
* @param requestedUrl The resource url
* @param initiatorType The initiator name, e.g: 'fetch'
* @param global
* @param cacheMode The cache mode must be an empty string ('') or 'local'
* @param bodyInfo [Fetch Response Body Info](https://fetch.spec.whatwg.org/#response-body-info)
* @param responseStatus The response's status code
* @param deliveryType The delivery type. Default: ''.
* @since v18.2.0, v16.17.0
*/
markResourceTiming(
timingInfo: object,
requestedUrl: string,
initiatorType: string,
global: object,
cacheMode: "" | "local",
bodyInfo: object,
responseStatus: number,
deliveryType?: string,
): PerformanceResourceTiming;
/**
* Creates a new PerformanceMeasure entry in the Performance Timeline.
* A PerformanceMeasure is a subclass of PerformanceEntry whose performanceEntry.entryType is always 'measure',
* and whose performanceEntry.duration measures the number of milliseconds elapsed since startMark and endMark.
*
* The startMark argument may identify any existing PerformanceMark in the the Performance Timeline, or may identify
* any of the timestamp properties provided by the PerformanceNodeTiming class. If the named startMark does not exist,
* then startMark is set to timeOrigin by default.
*
* The endMark argument must identify any existing PerformanceMark in the the Performance Timeline or any of the timestamp
* properties provided by the PerformanceNodeTiming class. If the named endMark does not exist, an error will be thrown.
* @param name
* @param startMark
* @param endMark
* @return The PerformanceMeasure entry that was created
*/
measure(name: string, startMark?: string, endMark?: string): PerformanceMeasure;
measure(name: string, options: MeasureOptions): PerformanceMeasure;
/**
* _This property is an extension by Node.js. It is not available in Web browsers._
*
* An instance of the `PerformanceNodeTiming` class that provides performance metrics for specific Node.js operational milestones.
* @since v8.5.0
*/
readonly nodeTiming: PerformanceNodeTiming;
/**
* Returns the current high resolution millisecond timestamp, where 0 represents the start of the current `node` process.
* @since v8.5.0
*/
now(): number;
/**
* Sets the global performance resource timing buffer size to the specified number of "resource" type performance entry objects.
*
* By default the max buffer size is set to 250.
* @since v18.8.0
*/
setResourceTimingBufferSize(maxSize: number): void;
/**
* The [`timeOrigin`](https://w3c.github.io/hr-time/#dom-performance-timeorigin) specifies the high resolution millisecond timestamp
* at which the current `node` process began, measured in Unix time.
* @since v8.5.0
*/
readonly timeOrigin: number;
/**
* _This property is an extension by Node.js. It is not available in Web browsers._
*
* Wraps a function within a new function that measures the running time of the wrapped function.
* A `PerformanceObserver` must be subscribed to the `'function'` event type in order for the timing details to be accessed.
*
* ```js
* import {
* performance,
* PerformanceObserver,
* } from 'node:perf_hooks';
*
* function someFunction() {
* console.log('hello world');
* }
*
* const wrapped = performance.timerify(someFunction);
*
* const obs = new PerformanceObserver((list) => {
* console.log(list.getEntries()[0].duration);
*
* performance.clearMarks();
* performance.clearMeasures();
* obs.disconnect();
* });
* obs.observe({ entryTypes: ['function'] });
*
* // A performance timeline entry will be created
* wrapped();
* ```
*
* If the wrapped function returns a promise, a finally handler will be attached to the promise and the duration will be reported
* once the finally handler is invoked.
* @param fn
*/
timerify<T extends (...params: any[]) => any>(fn: T, options?: TimerifyOptions): T;
/**
* An object which is JSON representation of the performance object. It is similar to
* [`window.performance.toJSON`](https://developer.mozilla.org/en-US/docs/Web/API/Performance/toJSON) in browsers.
* @since v16.1.0
*/
toJSON(): any;
}
class PerformanceObserverEntryList {
/**
* Returns a list of `PerformanceEntry` objects in chronological order
* with respect to `performanceEntry.startTime`.
*
* ```js
* import {
* performance,
* PerformanceObserver,
* } from 'node:perf_hooks';
*
* const obs = new PerformanceObserver((perfObserverList, observer) => {
* console.log(perfObserverList.getEntries());
*
* * [
* * PerformanceEntry {
* * name: 'test',
* * entryType: 'mark',
* * startTime: 81.465639,
* * duration: 0,
* * detail: null
* * },
* * PerformanceEntry {
* * name: 'meow',
* * entryType: 'mark',
* * startTime: 81.860064,
* * duration: 0,
* * detail: null
* * }
* * ]
*
* performance.clearMarks();
* performance.clearMeasures();
* observer.disconnect();
* });
* obs.observe({ type: 'mark' });
*
* performance.mark('test');
* performance.mark('meow');
* ```
* @since v8.5.0
*/
getEntries(): PerformanceEntry[];
/**
* Returns a list of `PerformanceEntry` objects in chronological order
* with respect to `performanceEntry.startTime` whose `performanceEntry.name` is
* equal to `name`, and optionally, whose `performanceEntry.entryType` is equal to`type`.
*
* ```js
* import {
* performance,
* PerformanceObserver,
* } from 'node:perf_hooks';
*
* const obs = new PerformanceObserver((perfObserverList, observer) => {
* console.log(perfObserverList.getEntriesByName('meow'));
*
* * [
* * PerformanceEntry {
* * name: 'meow',
* * entryType: 'mark',
* * startTime: 98.545991,
* * duration: 0,
* * detail: null
* * }
* * ]
*
* console.log(perfObserverList.getEntriesByName('nope')); // []
*
* console.log(perfObserverList.getEntriesByName('test', 'mark'));
*
* * [
* * PerformanceEntry {
* * name: 'test',
* * entryType: 'mark',
* * startTime: 63.518931,
* * duration: 0,
* * detail: null
* * }
* * ]
*
* console.log(perfObserverList.getEntriesByName('test', 'measure')); // []
*
* performance.clearMarks();
* performance.clearMeasures();
* observer.disconnect();
* });
* obs.observe({ entryTypes: ['mark', 'measure'] });
*
* performance.mark('test');
* performance.mark('meow');
* ```
* @since v8.5.0
*/
getEntriesByName(name: string, type?: EntryType): PerformanceEntry[];
/**
* Returns a list of `PerformanceEntry` objects in chronological order
* with respect to `performanceEntry.startTime` whose `performanceEntry.entryType` is equal to `type`.
*
* ```js
* import {
* performance,
* PerformanceObserver,
* } from 'node:perf_hooks';
*
* const obs = new PerformanceObserver((perfObserverList, observer) => {
* console.log(perfObserverList.getEntriesByType('mark'));
*
* * [
* * PerformanceEntry {
* * name: 'test',
* * entryType: 'mark',
* * startTime: 55.897834,
* * duration: 0,
* * detail: null
* * },
* * PerformanceEntry {
* * name: 'meow',
* * entryType: 'mark',
* * startTime: 56.350146,
* * duration: 0,
* * detail: null
* * }
* * ]
*
* performance.clearMarks();
* performance.clearMeasures();
* observer.disconnect();
* });
* obs.observe({ type: 'mark' });
*
* performance.mark('test');
* performance.mark('meow');
* ```
* @since v8.5.0
*/
getEntriesByType(type: EntryType): PerformanceEntry[];
}
type PerformanceObserverCallback = (list: PerformanceObserverEntryList, observer: PerformanceObserver) => void;
/**
* @since v8.5.0
*/
class PerformanceObserver extends AsyncResource {
constructor(callback: PerformanceObserverCallback);
/**
* Disconnects the `PerformanceObserver` instance from all notifications.
* @since v8.5.0
*/
disconnect(): void;
/**
* Subscribes the `PerformanceObserver` instance to notifications of new `PerformanceEntry` instances identified either by `options.entryTypes` or `options.type`:
*
* ```js
* import {
* performance,
* PerformanceObserver,
* } from 'node:perf_hooks';
*
* const obs = new PerformanceObserver((list, observer) => {
* // Called once asynchronously. `list` contains three items.
* });
* obs.observe({ type: 'mark' });
*
* for (let n = 0; n < 3; n++)
* performance.mark(`test${n}`);
* ```
* @since v8.5.0
*/
observe(
options:
| {
entryTypes: readonly EntryType[];
buffered?: boolean | undefined;
}
| {
type: EntryType;
buffered?: boolean | undefined;
},
): void;
}
/**
* Provides detailed network timing data regarding the loading of an application's resources.
*
* The constructor of this class is not exposed to users directly.
* @since v18.2.0, v16.17.0
*/
class PerformanceResourceTiming extends PerformanceEntry {
readonly entryType: "resource";
protected constructor();
/**
* The high resolution millisecond timestamp at immediately before dispatching the `fetch`
* request. If the resource is not intercepted by a worker the property will always return 0.
* @since v18.2.0, v16.17.0
*/
readonly workerStart: number;
/**
* The high resolution millisecond timestamp that represents the start time of the fetch which
* initiates the redirect.
* @since v18.2.0, v16.17.0
*/
readonly redirectStart: number;
/**
* The high resolution millisecond timestamp that will be created immediately after receiving
* the last byte of the response of the last redirect.
* @since v18.2.0, v16.17.0
*/
readonly redirectEnd: number;
/**
* The high resolution millisecond timestamp immediately before the Node.js starts to fetch the resource.
* @since v18.2.0, v16.17.0
*/
readonly fetchStart: number;
/**
* The high resolution millisecond timestamp immediately before the Node.js starts the domain name lookup
* for the resource.
* @since v18.2.0, v16.17.0
*/
readonly domainLookupStart: number;
/**
* The high resolution millisecond timestamp representing the time immediately after the Node.js finished
* the domain name lookup for the resource.
* @since v18.2.0, v16.17.0
*/
readonly domainLookupEnd: number;
/**
* The high resolution millisecond timestamp representing the time immediately before Node.js starts to
* establish the connection to the server to retrieve the resource.
* @since v18.2.0, v16.17.0
*/
readonly connectStart: number;
/**
* The high resolution millisecond timestamp representing the time immediately after Node.js finishes
* establishing the connection to the server to retrieve the resource.
* @since v18.2.0, v16.17.0
*/
readonly connectEnd: number;
/**
* The high resolution millisecond timestamp representing the time immediately before Node.js starts the
* handshake process to secure the current connection.
* @since v18.2.0, v16.17.0
*/
readonly secureConnectionStart: number;
/**
* The high resolution millisecond timestamp representing the time immediately before Node.js receives the
* first byte of the response from the server.
* @since v18.2.0, v16.17.0
*/
readonly requestStart: number;
/**
* The high resolution millisecond timestamp representing the time immediately after Node.js receives the
* last byte of the resource or immediately before the transport connection is closed, whichever comes first.
* @since v18.2.0, v16.17.0
*/
readonly responseEnd: number;
/**
* A number representing the size (in octets) of the fetched resource. The size includes the response header
* fields plus the response payload body.
* @since v18.2.0, v16.17.0
*/
readonly transferSize: number;
/**
* A number representing the size (in octets) received from the fetch (HTTP or cache), of the payload body, before
* removing any applied content-codings.
* @since v18.2.0, v16.17.0
*/
readonly encodedBodySize: number;
/**
* A number representing the size (in octets) received from the fetch (HTTP or cache), of the message body, after
* removing any applied content-codings.
* @since v18.2.0, v16.17.0
*/
readonly decodedBodySize: number;
/**
* Returns a `object` that is the JSON representation of the `PerformanceResourceTiming` object
* @since v18.2.0, v16.17.0
*/
toJSON(): any;
}
namespace constants {
const NODE_PERFORMANCE_GC_MAJOR: number;
const NODE_PERFORMANCE_GC_MINOR: number;
const NODE_PERFORMANCE_GC_INCREMENTAL: number;
const NODE_PERFORMANCE_GC_WEAKCB: number;
const NODE_PERFORMANCE_GC_FLAGS_NO: number;
const NODE_PERFORMANCE_GC_FLAGS_CONSTRUCT_RETAINED: number;
const NODE_PERFORMANCE_GC_FLAGS_FORCED: number;
const NODE_PERFORMANCE_GC_FLAGS_SYNCHRONOUS_PHANTOM_PROCESSING: number;
const NODE_PERFORMANCE_GC_FLAGS_ALL_AVAILABLE_GARBAGE: number;
const NODE_PERFORMANCE_GC_FLAGS_ALL_EXTERNAL_MEMORY: number;
const NODE_PERFORMANCE_GC_FLAGS_SCHEDULE_IDLE: number;
}
const performance: Performance;
interface EventLoopMonitorOptions {
/**
* The sampling rate in milliseconds.
* Must be greater than zero.
* @default 10
*/
resolution?: number | undefined;
}
interface Histogram {
/**
* The number of samples recorded by the histogram.
* @since v17.4.0, v16.14.0
*/
readonly count: number;
/**
* The number of samples recorded by the histogram.
* v17.4.0, v16.14.0
*/
readonly countBigInt: bigint;
/**
* The number of times the event loop delay exceeded the maximum 1 hour event
* loop delay threshold.
* @since v11.10.0
*/
readonly exceeds: number;
/**
* The number of times the event loop delay exceeded the maximum 1 hour event loop delay threshold.
* @since v17.4.0, v16.14.0
*/
readonly exceedsBigInt: bigint;
/**
* The maximum recorded event loop delay.
* @since v11.10.0
*/
readonly max: number;
/**
* The maximum recorded event loop delay.
* v17.4.0, v16.14.0
*/
readonly maxBigInt: number;
/**
* The mean of the recorded event loop delays.
* @since v11.10.0
*/
readonly mean: number;
/**
* The minimum recorded event loop delay.
* @since v11.10.0
*/
readonly min: number;
/**
* The minimum recorded event loop delay.
* v17.4.0, v16.14.0
*/
readonly minBigInt: bigint;
/**
* Returns the value at the given percentile.
* @since v11.10.0
* @param percentile A percentile value in the range (0, 100].
*/
percentile(percentile: number): number;
/**
* Returns the value at the given percentile.
* @since v17.4.0, v16.14.0
* @param percentile A percentile value in the range (0, 100].
*/
percentileBigInt(percentile: number): bigint;
/**
* Returns a `Map` object detailing the accumulated percentile distribution.
* @since v11.10.0
*/
readonly percentiles: Map<number, number>;
/**
* Returns a `Map` object detailing the accumulated percentile distribution.
* @since v17.4.0, v16.14.0
*/
readonly percentilesBigInt: Map<bigint, bigint>;
/**
* Resets the collected histogram data.
* @since v11.10.0
*/
reset(): void;
/**
* The standard deviation of the recorded event loop delays.
* @since v11.10.0
*/
readonly stddev: number;
}
interface IntervalHistogram extends Histogram {
/**
* Enables the update interval timer. Returns `true` if the timer was
* started, `false` if it was already started.
* @since v11.10.0
*/
enable(): boolean;
/**
* Disables the update interval timer. Returns `true` if the timer was
* stopped, `false` if it was already stopped.
* @since v11.10.0
*/
disable(): boolean;
}
interface RecordableHistogram extends Histogram {
/**
* @since v15.9.0, v14.18.0
* @param val The amount to record in the histogram.
*/
record(val: number | bigint): void;
/**
* Calculates the amount of time (in nanoseconds) that has passed since the
* previous call to `recordDelta()` and records that amount in the histogram.
* @since v15.9.0, v14.18.0
*/
recordDelta(): void;
/**
* Adds the values from `other` to this histogram.
* @since v17.4.0, v16.14.0
*/
add(other: RecordableHistogram): void;
}
/**
* _This property is an extension by Node.js. It is not available in Web browsers._
*
* Creates an `IntervalHistogram` object that samples and reports the event loop
* delay over time. The delays will be reported in nanoseconds.
*
* Using a timer to detect approximate event loop delay works because the
* execution of timers is tied specifically to the lifecycle of the libuv
* event loop. That is, a delay in the loop will cause a delay in the execution
* of the timer, and those delays are specifically what this API is intended to
* detect.
*
* ```js
* import { monitorEventLoopDelay } from 'node:perf_hooks';
* const h = monitorEventLoopDelay({ resolution: 20 });
* h.enable();
* // Do something.
* h.disable();
* console.log(h.min);
* console.log(h.max);
* console.log(h.mean);
* console.log(h.stddev);
* console.log(h.percentiles);
* console.log(h.percentile(50));
* console.log(h.percentile(99));
* ```
* @since v11.10.0
*/
function monitorEventLoopDelay(options?: EventLoopMonitorOptions): IntervalHistogram;
interface CreateHistogramOptions {
/**
* The minimum recordable value. Must be an integer value greater than 0.
* @default 1
*/
min?: number | bigint | undefined;
/**
* The maximum recordable value. Must be an integer value greater than min.
* @default Number.MAX_SAFE_INTEGER
*/
max?: number | bigint | undefined;
/**
* The number of accuracy digits. Must be a number between 1 and 5.
* @default 3
*/
figures?: number | undefined;
}
/**
* Returns a `RecordableHistogram`.
* @since v15.9.0, v14.18.0
*/
function createHistogram(options?: CreateHistogramOptions): RecordableHistogram;
import {
performance as _performance,
PerformanceEntry as _PerformanceEntry,
PerformanceMark as _PerformanceMark,
PerformanceMeasure as _PerformanceMeasure,
PerformanceObserver as _PerformanceObserver,
PerformanceObserverEntryList as _PerformanceObserverEntryList,
PerformanceResourceTiming as _PerformanceResourceTiming,
} from "perf_hooks";
global {
/**
* `PerformanceEntry` is a global reference for `import { PerformanceEntry } from 'node:perf_hooks'`
* @see https://nodejs.org/docs/latest-v22.x/api/globals.html#performanceentry
* @since v19.0.0
*/
var PerformanceEntry: typeof globalThis extends {
onmessage: any;
PerformanceEntry: infer T;
} ? T
: typeof _PerformanceEntry;
/**
* `PerformanceMark` is a global reference for `import { PerformanceMark } from 'node:perf_hooks'`
* @see https://nodejs.org/docs/latest-v22.x/api/globals.html#performancemark
* @since v19.0.0
*/
var PerformanceMark: typeof globalThis extends {
onmessage: any;
PerformanceMark: infer T;
} ? T
: typeof _PerformanceMark;
/**
* `PerformanceMeasure` is a global reference for `import { PerformanceMeasure } from 'node:perf_hooks'`
* @see https://nodejs.org/docs/latest-v22.x/api/globals.html#performancemeasure
* @since v19.0.0
*/
var PerformanceMeasure: typeof globalThis extends {
onmessage: any;
PerformanceMeasure: infer T;
} ? T
: typeof _PerformanceMeasure;
/**
* `PerformanceObserver` is a global reference for `import { PerformanceObserver } from 'node:perf_hooks'`
* @see https://nodejs.org/docs/latest-v22.x/api/globals.html#performanceobserver
* @since v19.0.0
*/
var PerformanceObserver: typeof globalThis extends {
onmessage: any;
PerformanceObserver: infer T;
} ? T
: typeof _PerformanceObserver;
/**
* `PerformanceObserverEntryList` is a global reference for `import { PerformanceObserverEntryList } from 'node:perf_hooks'`
* @see https://nodejs.org/docs/latest-v22.x/api/globals.html#performanceobserverentrylist
* @since v19.0.0
*/
var PerformanceObserverEntryList: typeof globalThis extends {
onmessage: any;
PerformanceObserverEntryList: infer T;
} ? T
: typeof _PerformanceObserverEntryList;
/**
* `PerformanceResourceTiming` is a global reference for `import { PerformanceResourceTiming } from 'node:perf_hooks'`
* @see https://nodejs.org/docs/latest-v22.x/api/globals.html#performanceresourcetiming
* @since v19.0.0
*/
var PerformanceResourceTiming: typeof globalThis extends {
onmessage: any;
PerformanceResourceTiming: infer T;
} ? T
: typeof _PerformanceResourceTiming;
/**
* `performance` is a global reference for `import { performance } from 'node:perf_hooks'`
* @see https://nodejs.org/docs/latest-v22.x/api/globals.html#performance
* @since v16.0.0
*/
var performance: typeof globalThis extends {
onmessage: any;
performance: infer T;
} ? T
: typeof _performance;
}
}
declare module "node:perf_hooks" {
export * from "perf_hooks";
}
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/**
* **The version of the punycode module bundled in Node.js is being deprecated. **In a future major version of Node.js this module will be removed. Users
* currently depending on the `punycode` module should switch to using the
* userland-provided [Punycode.js](https://github.com/bestiejs/punycode.js) module instead. For punycode-based URL
* encoding, see `url.domainToASCII` or, more generally, the `WHATWG URL API`.
*
* The `punycode` module is a bundled version of the [Punycode.js](https://github.com/bestiejs/punycode.js) module. It
* can be accessed using:
*
* ```js
* import punycode from 'node:punycode';
* ```
*
* [Punycode](https://tools.ietf.org/html/rfc3492) is a character encoding scheme defined by RFC 3492 that is
* primarily intended for use in Internationalized Domain Names. Because host
* names in URLs are limited to ASCII characters only, Domain Names that contain
* non-ASCII characters must be converted into ASCII using the Punycode scheme.
* For instance, the Japanese character that translates into the English word, `'example'` is `'例'`. The Internationalized Domain Name, `'例.com'` (equivalent
* to `'example.com'`) is represented by Punycode as the ASCII string `'xn--fsq.com'`.
*
* The `punycode` module provides a simple implementation of the Punycode standard.
*
* The `punycode` module is a third-party dependency used by Node.js and
* made available to developers as a convenience. Fixes or other modifications to
* the module must be directed to the [Punycode.js](https://github.com/bestiejs/punycode.js) project.
* @deprecated Since v7.0.0 - Deprecated
* @see [source](https://github.com/nodejs/node/blob/v22.x/lib/punycode.js)
*/
declare module "punycode" {
/**
* The `punycode.decode()` method converts a [Punycode](https://tools.ietf.org/html/rfc3492) string of ASCII-only
* characters to the equivalent string of Unicode codepoints.
*
* ```js
* punycode.decode('maana-pta'); // 'mañana'
* punycode.decode('--dqo34k'); // '☃-⌘'
* ```
* @since v0.5.1
*/
function decode(string: string): string;
/**
* The `punycode.encode()` method converts a string of Unicode codepoints to a [Punycode](https://tools.ietf.org/html/rfc3492) string of ASCII-only characters.
*
* ```js
* punycode.encode('mañana'); // 'maana-pta'
* punycode.encode('☃-⌘'); // '--dqo34k'
* ```
* @since v0.5.1
*/
function encode(string: string): string;
/**
* The `punycode.toUnicode()` method converts a string representing a domain name
* containing [Punycode](https://tools.ietf.org/html/rfc3492) encoded characters into Unicode. Only the [Punycode](https://tools.ietf.org/html/rfc3492) encoded parts of the domain name are be
* converted.
*
* ```js
* // decode domain names
* punycode.toUnicode('xn--maana-pta.com'); // 'mañana.com'
* punycode.toUnicode('xn----dqo34k.com'); // '☃-⌘.com'
* punycode.toUnicode('example.com'); // 'example.com'
* ```
* @since v0.6.1
*/
function toUnicode(domain: string): string;
/**
* The `punycode.toASCII()` method converts a Unicode string representing an
* Internationalized Domain Name to [Punycode](https://tools.ietf.org/html/rfc3492). Only the non-ASCII parts of the
* domain name will be converted. Calling `punycode.toASCII()` on a string that
* already only contains ASCII characters will have no effect.
*
* ```js
* // encode domain names
* punycode.toASCII('mañana.com'); // 'xn--maana-pta.com'
* punycode.toASCII('☃-⌘.com'); // 'xn----dqo34k.com'
* punycode.toASCII('example.com'); // 'example.com'
* ```
* @since v0.6.1
*/
function toASCII(domain: string): string;
/**
* @deprecated since v7.0.0
* The version of the punycode module bundled in Node.js is being deprecated.
* In a future major version of Node.js this module will be removed.
* Users currently depending on the punycode module should switch to using
* the userland-provided Punycode.js module instead.
*/
const ucs2: ucs2;
interface ucs2 {
/**
* @deprecated since v7.0.0
* The version of the punycode module bundled in Node.js is being deprecated.
* In a future major version of Node.js this module will be removed.
* Users currently depending on the punycode module should switch to using
* the userland-provided Punycode.js module instead.
*/
decode(string: string): number[];
/**
* @deprecated since v7.0.0
* The version of the punycode module bundled in Node.js is being deprecated.
* In a future major version of Node.js this module will be removed.
* Users currently depending on the punycode module should switch to using
* the userland-provided Punycode.js module instead.
*/
encode(codePoints: readonly number[]): string;
}
/**
* @deprecated since v7.0.0
* The version of the punycode module bundled in Node.js is being deprecated.
* In a future major version of Node.js this module will be removed.
* Users currently depending on the punycode module should switch to using
* the userland-provided Punycode.js module instead.
*/
const version: string;
}
declare module "node:punycode" {
export * from "punycode";
}
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/**
* The `node:querystring` module provides utilities for parsing and formatting URL
* query strings. It can be accessed using:
*
* ```js
* import querystring from 'node:querystring';
* ```
*
* `querystring` is more performant than `URLSearchParams` but is not a
* standardized API. Use `URLSearchParams` when performance is not critical or
* when compatibility with browser code is desirable.
* @see [source](https://github.com/nodejs/node/blob/v22.x/lib/querystring.js)
*/
declare module "querystring" {
interface StringifyOptions {
/**
* The function to use when converting URL-unsafe characters to percent-encoding in the query string.
* @default `querystring.escape()`
*/
encodeURIComponent?: ((str: string) => string) | undefined;
}
interface ParseOptions {
/**
* Specifies the maximum number of keys to parse. Specify `0` to remove key counting limitations.
* @default 1000
*/
maxKeys?: number | undefined;
/**
* The function to use when decoding percent-encoded characters in the query string.
* @default `querystring.unescape()`
*/
decodeURIComponent?: ((str: string) => string) | undefined;
}
interface ParsedUrlQuery extends NodeJS.Dict<string | string[]> {}
interface ParsedUrlQueryInput extends
NodeJS.Dict<
| string
| number
| boolean
| readonly string[]
| readonly number[]
| readonly boolean[]
| null
>
{}
/**
* The `querystring.stringify()` method produces a URL query string from a
* given `obj` by iterating through the object's "own properties".
*
* It serializes the following types of values passed in `obj`: [string](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#String_type) |
* [number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Number_type) |
* [bigint](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/BigInt) |
* [boolean](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Boolean_type) |
* [string\[\]](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#String_type) |
* [number\[\]](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Number_type) |
* [bigint\[\]](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/BigInt) |
* [boolean\[\]](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Boolean_type) The numeric values must be finite. Any other input values will be coerced to
* empty strings.
*
* ```js
* querystring.stringify({ foo: 'bar', baz: ['qux', 'quux'], corge: '' });
* // Returns 'foo=bar&#x26;baz=qux&#x26;baz=quux&#x26;corge='
*
* querystring.stringify({ foo: 'bar', baz: 'qux' }, ';', ':');
* // Returns 'foo:bar;baz:qux'
* ```
*
* By default, characters requiring percent-encoding within the query string will
* be encoded as UTF-8\. If an alternative encoding is required, then an alternative `encodeURIComponent` option will need to be specified:
*
* ```js
* // Assuming gbkEncodeURIComponent function already exists,
*
* querystring.stringify({ w: '中文', foo: 'bar' }, null, null,
* { encodeURIComponent: gbkEncodeURIComponent });
* ```
* @since v0.1.25
* @param obj The object to serialize into a URL query string
* @param [sep='&'] The substring used to delimit key and value pairs in the query string.
* @param [eq='='] . The substring used to delimit keys and values in the query string.
*/
function stringify(obj?: ParsedUrlQueryInput, sep?: string, eq?: string, options?: StringifyOptions): string;
/**
* The `querystring.parse()` method parses a URL query string (`str`) into a
* collection of key and value pairs.
*
* For example, the query string `'foo=bar&#x26;abc=xyz&#x26;abc=123'` is parsed into:
*
* ```json
* {
* "foo": "bar",
* "abc": ["xyz", "123"]
* }
* ```
*
* The object returned by the `querystring.parse()` method _does not_ prototypically inherit from the JavaScript `Object`. This means that typical `Object` methods such as `obj.toString()`,
* `obj.hasOwnProperty()`, and others
* are not defined and _will not work_.
*
* By default, percent-encoded characters within the query string will be assumed
* to use UTF-8 encoding. If an alternative character encoding is used, then an
* alternative `decodeURIComponent` option will need to be specified:
*
* ```js
* // Assuming gbkDecodeURIComponent function already exists...
*
* querystring.parse('w=%D6%D0%CE%C4&#x26;foo=bar', null, null,
* { decodeURIComponent: gbkDecodeURIComponent });
* ```
* @since v0.1.25
* @param str The URL query string to parse
* @param [sep='&'] The substring used to delimit key and value pairs in the query string.
* @param [eq='='] The substring used to delimit keys and values in the query string.
*/
function parse(str: string, sep?: string, eq?: string, options?: ParseOptions): ParsedUrlQuery;
/**
* The querystring.encode() function is an alias for querystring.stringify().
*/
const encode: typeof stringify;
/**
* The querystring.decode() function is an alias for querystring.parse().
*/
const decode: typeof parse;
/**
* The `querystring.escape()` method performs URL percent-encoding on the given `str` in a manner that is optimized for the specific requirements of URL
* query strings.
*
* The `querystring.escape()` method is used by `querystring.stringify()` and is
* generally not expected to be used directly. It is exported primarily to allow
* application code to provide a replacement percent-encoding implementation if
* necessary by assigning `querystring.escape` to an alternative function.
* @since v0.1.25
*/
function escape(str: string): string;
/**
* The `querystring.unescape()` method performs decoding of URL percent-encoded
* characters on the given `str`.
*
* The `querystring.unescape()` method is used by `querystring.parse()` and is
* generally not expected to be used directly. It is exported primarily to allow
* application code to provide a replacement decoding implementation if
* necessary by assigning `querystring.unescape` to an alternative function.
*
* By default, the `querystring.unescape()` method will attempt to use the
* JavaScript built-in `decodeURIComponent()` method to decode. If that fails,
* a safer equivalent that does not throw on malformed URLs will be used.
* @since v0.1.25
*/
function unescape(str: string): string;
}
declare module "node:querystring" {
export * from "querystring";
}

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