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Copyright JS Foundation and other contributors
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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<div align="center">
<a href="https://github.com/webpack/webpack">
<img width="200" height="200" src="https://webpack.js.org/assets/icon-square-big.svg">
</a>
</div>
[![npm][npm]][npm-url]
[![node][node]][node-url]
[![tests][tests]][tests-url]
[![cover][cover]][cover-url]
[![discussion][discussion]][discussion-url]
[![size][size]][size-url]
# terser-webpack-plugin
This plugin uses [terser](https://github.com/terser/terser) to minify/minimize your JavaScript.
## Getting Started
Webpack v5 comes with the latest `terser-webpack-plugin` out of the box. If you are using Webpack v5 or above and wish to customize the options, you will still need to install `terser-webpack-plugin`. Using Webpack v4, you have to install `terser-webpack-plugin` v4.
To begin, you'll need to install `terser-webpack-plugin`:
```console
npm install terser-webpack-plugin --save-dev
```
or
```console
yarn add -D terser-webpack-plugin
```
or
```console
pnpm add -D terser-webpack-plugin
```
Then add the plugin to your `webpack` config. For example:
**webpack.config.js**
```js
const TerserPlugin = require("terser-webpack-plugin");
module.exports = {
optimization: {
minimize: true,
minimizer: [new TerserPlugin()],
},
};
```
And run `webpack` via your preferred method.
## Note about source maps
**Works only with `source-map`, `inline-source-map`, `hidden-source-map` and `nosources-source-map` values for the [`devtool`](https://webpack.js.org/configuration/devtool/) option.**
Why?
- `eval` wraps modules in `eval("string")` and the minimizer does not handle strings.
- `cheap` has not column information and minimizer generate only a single line, which leave only a single mapping.
Using supported `devtool` values enable source map generation.
## Options
- **[`test`](#test)**
- **[`include`](#include)**
- **[`exclude`](#exclude)**
- **[`parallel`](#parallel)**
- **[`minify`](#minify)**
- **[`terserOptions`](#terseroptions)**
- **[`extractComments`](#extractcomments)**
### `test`
Type:
```ts
type test = string | RegExp | Array<string | RegExp>;
```
Default: `/\.m?js(\?.*)?$/i`
Test to match files against.
**webpack.config.js**
```js
module.exports = {
optimization: {
minimize: true,
minimizer: [
new TerserPlugin({
test: /\.js(\?.*)?$/i,
}),
],
},
};
```
### `include`
Type:
```ts
type include = string | RegExp | Array<string | RegExp>;
```
Default: `undefined`
Files to include.
**webpack.config.js**
```js
module.exports = {
optimization: {
minimize: true,
minimizer: [
new TerserPlugin({
include: /\/includes/,
}),
],
},
};
```
### `exclude`
Type:
```ts
type exclude = string | RegExp | Array<string | RegExp>;
```
Default: `undefined`
Files to exclude.
**webpack.config.js**
```js
module.exports = {
optimization: {
minimize: true,
minimizer: [
new TerserPlugin({
exclude: /\/excludes/,
}),
],
},
};
```
### `parallel`
Type:
```ts
type parallel = boolean | number;
```
Default: `true`
Use multi-process parallel running to improve the build speed.
Default number of concurrent runs: `os.cpus().length - 1` or `os.availableParallelism() - 1` (if this function is supported).
> **Note**
>
> Parallelization can speedup your build significantly and is therefore **highly recommended**.
> **Warning**
>
> If you use **Circle CI** or any other environment that doesn't provide real available count of CPUs then you need to setup explicitly number of CPUs to avoid `Error: Call retries were exceeded` (see [#143](https://github.com/webpack-contrib/terser-webpack-plugin/issues/143), [#202](https://github.com/webpack-contrib/terser-webpack-plugin/issues/202)).
#### `boolean`
Enable/disable multi-process parallel running.
**webpack.config.js**
```js
module.exports = {
optimization: {
minimize: true,
minimizer: [
new TerserPlugin({
parallel: true,
}),
],
},
};
```
#### `number`
Enable multi-process parallel running and set number of concurrent runs.
**webpack.config.js**
```js
module.exports = {
optimization: {
minimize: true,
minimizer: [
new TerserPlugin({
parallel: 4,
}),
],
},
};
```
### `minify`
Type:
```ts
type minify = (
input: {
[file: string]: string;
},
sourceMap: import("@jridgewell/trace-mapping").SourceMapInput | undefined,
minifyOptions: {
module?: boolean | undefined;
ecma?: import("terser").ECMA | undefined;
},
extractComments:
| boolean
| "all"
| "some"
| RegExp
| ((
astNode: any,
comment: {
value: string;
type: "comment1" | "comment2" | "comment3" | "comment4";
pos: number;
line: number;
col: number;
}
) => boolean)
| {
condition?:
| boolean
| "all"
| "some"
| RegExp
| ((
astNode: any,
comment: {
value: string;
type: "comment1" | "comment2" | "comment3" | "comment4";
pos: number;
line: number;
col: number;
}
) => boolean)
| undefined;
filename?: string | ((fileData: any) => string) | undefined;
banner?:
| string
| boolean
| ((commentsFile: string) => string)
| undefined;
}
| undefined
) => Promise<{
code: string;
map?: import("@jridgewell/trace-mapping").SourceMapInput | undefined;
errors?: (string | Error)[] | undefined;
warnings?: (string | Error)[] | undefined;
extractedComments?: string[] | undefined;
}>;
```
Default: `TerserPlugin.terserMinify`
Allows you to override default minify function.
By default plugin uses [terser](https://github.com/terser/terser) package.
Useful for using and testing unpublished versions or forks.
> **Warning**
>
> **Always use `require` inside `minify` function when `parallel` option enabled**.
**webpack.config.js**
```js
// Can be async
const minify = (input, sourceMap, minimizerOptions, extractsComments) => {
// The `minimizerOptions` option contains option from the `terserOptions` option
// You can use `minimizerOptions.myCustomOption`
// Custom logic for extract comments
const { map, code } = require("uglify-module") // Or require('./path/to/uglify-module')
.minify(input, {
/* Your options for minification */
});
return { map, code, warnings: [], errors: [], extractedComments: [] };
};
// Used to regenerate `fullhash`/`chunkhash` between different implementation
// Example: you fix a bug in custom minimizer/custom function, but unfortunately webpack doesn't know about it, so you will get the same fullhash/chunkhash
// to avoid this you can provide version of your custom minimizer
// You don't need if you use only `contenthash`
minify.getMinimizerVersion = () => {
let packageJson;
try {
// eslint-disable-next-line global-require, import/no-extraneous-dependencies
packageJson = require("uglify-module/package.json");
} catch (error) {
// Ignore
}
return packageJson && packageJson.version;
};
module.exports = {
optimization: {
minimize: true,
minimizer: [
new TerserPlugin({
terserOptions: {
myCustomOption: true,
},
minify,
}),
],
},
};
```
### `terserOptions`
Type:
```ts
type terserOptions = {
compress?: boolean | CompressOptions;
ecma?: ECMA;
enclose?: boolean | string;
ie8?: boolean;
keep_classnames?: boolean | RegExp;
keep_fnames?: boolean | RegExp;
mangle?: boolean | MangleOptions;
module?: boolean;
nameCache?: object;
format?: FormatOptions;
/** @deprecated */
output?: FormatOptions;
parse?: ParseOptions;
safari10?: boolean;
sourceMap?: boolean | SourceMapOptions;
toplevel?: boolean;
};
```
Default: [default](https://github.com/terser/terser#minify-options)
Terser [options](https://github.com/terser/terser#minify-options).
**webpack.config.js**
```js
module.exports = {
optimization: {
minimize: true,
minimizer: [
new TerserPlugin({
terserOptions: {
ecma: undefined,
parse: {},
compress: {},
mangle: true, // Note `mangle.properties` is `false` by default.
module: false,
// Deprecated
output: null,
format: null,
toplevel: false,
nameCache: null,
ie8: false,
keep_classnames: undefined,
keep_fnames: false,
safari10: false,
},
}),
],
},
};
```
### `extractComments`
Type:
```ts
type extractComments =
| boolean
| string
| RegExp
| ((
astNode: any,
comment: {
value: string;
type: "comment1" | "comment2" | "comment3" | "comment4";
pos: number;
line: number;
col: number;
}
) => boolean)
| {
condition?:
| boolean
| "all"
| "some"
| RegExp
| ((
astNode: any,
comment: {
value: string;
type: "comment1" | "comment2" | "comment3" | "comment4";
pos: number;
line: number;
col: number;
}
) => boolean)
| undefined;
filename?: string | ((fileData: any) => string) | undefined;
banner?:
| string
| boolean
| ((commentsFile: string) => string)
| undefined;
};
```
Default: `true`
Whether comments shall be extracted to a separate file, (see [details](https://github.com/webpack/webpack/commit/71933e979e51c533b432658d5e37917f9e71595a)).
By default extract only comments using `/^\**!|@preserve|@license|@cc_on/i` regexp condition and remove remaining comments.
If the original file is named `foo.js`, then the comments will be stored to `foo.js.LICENSE.txt`.
The `terserOptions.format.comments` option specifies whether the comment will be preserved, i.e. it is possible to preserve some comments (e.g. annotations) while extracting others or even preserving comments that have been extracted.
#### `boolean`
Enable/disable extracting comments.
**webpack.config.js**
```js
module.exports = {
optimization: {
minimize: true,
minimizer: [
new TerserPlugin({
extractComments: true,
}),
],
},
};
```
#### `string`
Extract `all` or `some` (use `/^\**!|@preserve|@license|@cc_on/i` RegExp) comments.
**webpack.config.js**
```js
module.exports = {
optimization: {
minimize: true,
minimizer: [
new TerserPlugin({
extractComments: "all",
}),
],
},
};
```
#### `RegExp`
All comments that match the given expression will be extracted to the separate file.
**webpack.config.js**
```js
module.exports = {
optimization: {
minimize: true,
minimizer: [
new TerserPlugin({
extractComments: /@extract/i,
}),
],
},
};
```
#### `function`
All comments that match the given expression will be extracted to the separate file.
**webpack.config.js**
```js
module.exports = {
optimization: {
minimize: true,
minimizer: [
new TerserPlugin({
extractComments: (astNode, comment) => {
if (/@extract/i.test(comment.value)) {
return true;
}
return false;
},
}),
],
},
};
```
#### `object`
Allow to customize condition for extract comments, specify extracted file name and banner.
**webpack.config.js**
```js
module.exports = {
optimization: {
minimize: true,
minimizer: [
new TerserPlugin({
extractComments: {
condition: /^\**!|@preserve|@license|@cc_on/i,
filename: (fileData) => {
// The "fileData" argument contains object with "filename", "basename", "query" and "hash"
return `${fileData.filename}.LICENSE.txt${fileData.query}`;
},
banner: (licenseFile) => {
return `License information can be found in ${licenseFile}`;
},
},
}),
],
},
};
```
##### `condition`
Type:
```ts
type condition =
| boolean
| "all"
| "some"
| RegExp
| ((
astNode: any,
comment: {
value: string;
type: "comment1" | "comment2" | "comment3" | "comment4";
pos: number;
line: number;
col: number;
}
) => boolean)
| undefined;
```
Condition what comments you need extract.
**webpack.config.js**
```js
module.exports = {
optimization: {
minimize: true,
minimizer: [
new TerserPlugin({
extractComments: {
condition: "some",
filename: (fileData) => {
// The "fileData" argument contains object with "filename", "basename", "query" and "hash"
return `${fileData.filename}.LICENSE.txt${fileData.query}`;
},
banner: (licenseFile) => {
return `License information can be found in ${licenseFile}`;
},
},
}),
],
},
};
```
##### `filename`
Type:
```ts
type filename = string | ((fileData: any) => string) | undefined;
```
Default: `[file].LICENSE.txt[query]`
Available placeholders: `[file]`, `[query]` and `[filebase]` (`[base]` for webpack 5).
The file where the extracted comments will be stored.
Default is to append the suffix `.LICENSE.txt` to the original filename.
> **Warning**
>
> We highly recommend using the `txt` extension. Using `js`/`cjs`/`mjs` extensions may conflict with existing assets which leads to broken code.
**webpack.config.js**
```js
module.exports = {
optimization: {
minimize: true,
minimizer: [
new TerserPlugin({
extractComments: {
condition: /^\**!|@preserve|@license|@cc_on/i,
filename: "extracted-comments.js",
banner: (licenseFile) => {
return `License information can be found in ${licenseFile}`;
},
},
}),
],
},
};
```
##### `banner`
Type:
```ts
type banner = string | boolean | ((commentsFile: string) => string) | undefined;
```
Default: `/*! For license information please see ${commentsFile} */`
The banner text that points to the extracted file and will be added on top of the original file.
Can be `false` (no banner), a `String`, or a `Function<(string) -> String>` that will be called with the filename where extracted comments have been stored.
Will be wrapped into comment.
**webpack.config.js**
```js
module.exports = {
optimization: {
minimize: true,
minimizer: [
new TerserPlugin({
extractComments: {
condition: true,
filename: (fileData) => {
// The "fileData" argument contains object with "filename", "basename", "query" and "hash"
return `${fileData.filename}.LICENSE.txt${fileData.query}`;
},
banner: (commentsFile) => {
return `My custom banner about license information ${commentsFile}`;
},
},
}),
],
},
};
```
## Examples
### Preserve Comments
Extract all legal comments (i.e. `/^\**!|@preserve|@license|@cc_on/i`) and preserve `/@license/i` comments.
**webpack.config.js**
```js
module.exports = {
optimization: {
minimize: true,
minimizer: [
new TerserPlugin({
terserOptions: {
format: {
comments: /@license/i,
},
},
extractComments: true,
}),
],
},
};
```
### Remove Comments
If you avoid building with comments, use this config:
**webpack.config.js**
```js
module.exports = {
optimization: {
minimize: true,
minimizer: [
new TerserPlugin({
terserOptions: {
format: {
comments: false,
},
},
extractComments: false,
}),
],
},
};
```
### [`uglify-js`](https://github.com/mishoo/UglifyJS)
[`UglifyJS`](https://github.com/mishoo/UglifyJS) is a JavaScript parser, minifier, compressor and beautifier toolkit.
**webpack.config.js**
```js
module.exports = {
optimization: {
minimize: true,
minimizer: [
new TerserPlugin({
minify: TerserPlugin.uglifyJsMinify,
// `terserOptions` options will be passed to `uglify-js`
// Link to options - https://github.com/mishoo/UglifyJS#minify-options
terserOptions: {},
}),
],
},
};
```
### [`swc`](https://github.com/swc-project/swc)
[`swc`](https://github.com/swc-project/swc) is a super-fast compiler written in rust; producing widely-supported javascript from modern standards and typescript.
> **Warning**
>
> the `extractComments` option is not supported and all comments will be removed by default, it will be fixed in future
**webpack.config.js**
```js
module.exports = {
optimization: {
minimize: true,
minimizer: [
new TerserPlugin({
minify: TerserPlugin.swcMinify,
// `terserOptions` options will be passed to `swc` (`@swc/core`)
// Link to options - https://swc.rs/docs/config-js-minify
terserOptions: {},
}),
],
},
};
```
### [`esbuild`](https://github.com/evanw/esbuild)
[`esbuild`](https://github.com/evanw/esbuild) is an extremely fast JavaScript bundler and minifier.
> **Warning**
>
> the `extractComments` option is not supported and all legal comments (i.e. copyright, licenses and etc) will be preserved
**webpack.config.js**
```js
module.exports = {
optimization: {
minimize: true,
minimizer: [
new TerserPlugin({
minify: TerserPlugin.esbuildMinify,
// `terserOptions` options will be passed to `esbuild`
// Link to options - https://esbuild.github.io/api/#minify
// Note: the `minify` options is true by default (and override other `minify*` options), so if you want to disable the `minifyIdentifiers` option (or other `minify*` options) please use:
// terserOptions: {
// minify: false,
// minifyWhitespace: true,
// minifyIdentifiers: false,
// minifySyntax: true,
// },
terserOptions: {},
}),
],
},
};
```
### Custom Minify Function
Override default minify function - use `uglify-js` for minification.
**webpack.config.js**
```js
module.exports = {
optimization: {
minimize: true,
minimizer: [
new TerserPlugin({
minify: (file, sourceMap) => {
// https://github.com/mishoo/UglifyJS2#minify-options
const uglifyJsOptions = {
/* your `uglify-js` package options */
};
if (sourceMap) {
uglifyJsOptions.sourceMap = {
content: sourceMap,
};
}
return require("uglify-js").minify(file, uglifyJsOptions);
},
}),
],
},
};
```
### Typescript
With default terser minify function:
```ts
module.exports = {
optimization: {
minimize: true,
minimizer: [
new TerserPlugin({
terserOptions: {
compress: true,
},
}),
],
},
};
```
With built-in minify functions:
```ts
import type { JsMinifyOptions as SwcOptions } from "@swc/core";
import type { MinifyOptions as UglifyJSOptions } from "uglify-js";
import type { TransformOptions as EsbuildOptions } from "esbuild";
import type { MinifyOptions as TerserOptions } from "terser";
module.exports = {
optimization: {
minimize: true,
minimizer: [
new TerserPlugin<SwcOptions>({
minify: TerserPlugin.swcMinify,
terserOptions: {
// `swc` options
},
}),
new TerserPlugin<UglifyJSOptions>({
minify: TerserPlugin.uglifyJsMinify,
terserOptions: {
// `uglif-js` options
},
}),
new TerserPlugin<EsbuildOptions>({
minify: TerserPlugin.esbuildMinify,
terserOptions: {
// `esbuild` options
},
}),
// Alternative usage:
new TerserPlugin<TerserOptions>({
minify: TerserPlugin.terserMinify,
terserOptions: {
// `terser` options
},
}),
],
},
};
```
## Contributing
Please take a moment to read our contributing guidelines if you haven't yet done so.
[CONTRIBUTING](./.github/CONTRIBUTING.md)
## License
[MIT](./LICENSE)
[npm]: https://img.shields.io/npm/v/terser-webpack-plugin.svg
[npm-url]: https://npmjs.com/package/terser-webpack-plugin
[node]: https://img.shields.io/node/v/terser-webpack-plugin.svg
[node-url]: https://nodejs.org
[tests]: https://github.com/webpack-contrib/terser-webpack-plugin/workflows/terser-webpack-plugin/badge.svg
[tests-url]: https://github.com/webpack-contrib/terser-webpack-plugin/actions
[cover]: https://codecov.io/gh/webpack-contrib/terser-webpack-plugin/branch/master/graph/badge.svg
[cover-url]: https://codecov.io/gh/webpack-contrib/terser-webpack-plugin
[discussion]: https://img.shields.io/github/discussions/webpack/webpack
[discussion-url]: https://github.com/webpack/webpack/discussions
[size]: https://packagephobia.now.sh/badge?p=terser-webpack-plugin
[size-url]: https://packagephobia.now.sh/result?p=terser-webpack-plugin

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"use strict";
const path = require("path");
const os = require("os");
const {
validate
} = require("schema-utils");
const {
throttleAll,
memoize,
terserMinify,
uglifyJsMinify,
swcMinify,
esbuildMinify
} = require("./utils");
const schema = require("./options.json");
const {
minify
} = require("./minify");
/** @typedef {import("schema-utils/declarations/validate").Schema} Schema */
/** @typedef {import("webpack").Compiler} Compiler */
/** @typedef {import("webpack").Compilation} Compilation */
/** @typedef {import("webpack").WebpackError} WebpackError */
/** @typedef {import("webpack").Asset} Asset */
/** @typedef {import("jest-worker").Worker} JestWorker */
/** @typedef {import("@jridgewell/trace-mapping").SourceMapInput} SourceMapInput */
/** @typedef {import("@jridgewell/trace-mapping").TraceMap} TraceMap */
/** @typedef {RegExp | string} Rule */
/** @typedef {Rule[] | Rule} Rules */
/**
* @callback ExtractCommentsFunction
* @param {any} astNode
* @param {{ value: string, type: 'comment1' | 'comment2' | 'comment3' | 'comment4', pos: number, line: number, col: number }} comment
* @returns {boolean}
*/
/**
* @typedef {boolean | 'all' | 'some' | RegExp | ExtractCommentsFunction} ExtractCommentsCondition
*/
/**
* @typedef {string | ((fileData: any) => string)} ExtractCommentsFilename
*/
/**
* @typedef {boolean | string | ((commentsFile: string) => string)} ExtractCommentsBanner
*/
/**
* @typedef {Object} ExtractCommentsObject
* @property {ExtractCommentsCondition} [condition]
* @property {ExtractCommentsFilename} [filename]
* @property {ExtractCommentsBanner} [banner]
*/
/**
* @typedef {ExtractCommentsCondition | ExtractCommentsObject} ExtractCommentsOptions
*/
/**
* @typedef {Object} MinimizedResult
* @property {string} code
* @property {SourceMapInput} [map]
* @property {Array<Error | string>} [errors]
* @property {Array<Error | string>} [warnings]
* @property {Array<string>} [extractedComments]
*/
/**
* @typedef {{ [file: string]: string }} Input
*/
/**
* @typedef {{ [key: string]: any }} CustomOptions
*/
/**
* @template T
* @typedef {T extends infer U ? U : CustomOptions} InferDefaultType
*/
/**
* @template T
* @typedef {Object} PredefinedOptions
* @property {T extends { module?: infer P } ? P : boolean | string} [module]
* @property {T extends { ecma?: infer P } ? P : number | string} [ecma]
*/
/**
* @template T
* @typedef {PredefinedOptions<T> & InferDefaultType<T>} MinimizerOptions
*/
/**
* @template T
* @callback BasicMinimizerImplementation
* @param {Input} input
* @param {SourceMapInput | undefined} sourceMap
* @param {MinimizerOptions<T>} minifyOptions
* @param {ExtractCommentsOptions | undefined} extractComments
* @returns {Promise<MinimizedResult>}
*/
/**
* @typedef {object} MinimizeFunctionHelpers
* @property {() => string | undefined} [getMinimizerVersion]
* @property {() => boolean | undefined} [supportsWorkerThreads]
*/
/**
* @template T
* @typedef {BasicMinimizerImplementation<T> & MinimizeFunctionHelpers} MinimizerImplementation
*/
/**
* @template T
* @typedef {Object} InternalOptions
* @property {string} name
* @property {string} input
* @property {SourceMapInput | undefined} inputSourceMap
* @property {ExtractCommentsOptions | undefined} extractComments
* @property {{ implementation: MinimizerImplementation<T>, options: MinimizerOptions<T> }} minimizer
*/
/**
* @template T
* @typedef {JestWorker & { transform: (options: string) => MinimizedResult, minify: (options: InternalOptions<T>) => MinimizedResult }} MinimizerWorker
*/
/**
* @typedef {undefined | boolean | number} Parallel
*/
/**
* @typedef {Object} BasePluginOptions
* @property {Rules} [test]
* @property {Rules} [include]
* @property {Rules} [exclude]
* @property {ExtractCommentsOptions} [extractComments]
* @property {Parallel} [parallel]
*/
/**
* @template T
* @typedef {T extends import("terser").MinifyOptions ? { minify?: MinimizerImplementation<T> | undefined, terserOptions?: MinimizerOptions<T> | undefined } : { minify: MinimizerImplementation<T>, terserOptions?: MinimizerOptions<T> | undefined }} DefinedDefaultMinimizerAndOptions
*/
/**
* @template T
* @typedef {BasePluginOptions & { minimizer: { implementation: MinimizerImplementation<T>, options: MinimizerOptions<T> } }} InternalPluginOptions
*/
const getTraceMapping = memoize(() =>
// eslint-disable-next-line global-require
require("@jridgewell/trace-mapping"));
const getSerializeJavascript = memoize(() =>
// eslint-disable-next-line global-require
require("serialize-javascript"));
/**
* @template [T=import("terser").MinifyOptions]
*/
class TerserPlugin {
/**
* @param {BasePluginOptions & DefinedDefaultMinimizerAndOptions<T>} [options]
*/
constructor(options) {
validate( /** @type {Schema} */schema, options || {}, {
name: "Terser Plugin",
baseDataPath: "options"
});
// TODO make `minimizer` option instead `minify` and `terserOptions` in the next major release, also rename `terserMinify` to `terserMinimize`
const {
minify = ( /** @type {MinimizerImplementation<T>} */terserMinify),
terserOptions = ( /** @type {MinimizerOptions<T>} */{}),
test = /\.[cm]?js(\?.*)?$/i,
extractComments = true,
parallel = true,
include,
exclude
} = options || {};
/**
* @private
* @type {InternalPluginOptions<T>}
*/
this.options = {
test,
extractComments,
parallel,
include,
exclude,
minimizer: {
implementation: minify,
options: terserOptions
}
};
}
/**
* @private
* @param {any} input
* @returns {boolean}
*/
static isSourceMap(input) {
// All required options for `new TraceMap(...options)`
// https://github.com/jridgewell/trace-mapping#usage
return Boolean(input && input.version && input.sources && Array.isArray(input.sources) && typeof input.mappings === "string");
}
/**
* @private
* @param {unknown} warning
* @param {string} file
* @returns {Error}
*/
static buildWarning(warning, file) {
/**
* @type {Error & { hideStack: true, file: string }}
*/
// @ts-ignore
const builtWarning = new Error(warning.toString());
builtWarning.name = "Warning";
builtWarning.hideStack = true;
builtWarning.file = file;
return builtWarning;
}
/**
* @private
* @param {any} error
* @param {string} file
* @param {TraceMap} [sourceMap]
* @param {Compilation["requestShortener"]} [requestShortener]
* @returns {Error}
*/
static buildError(error, file, sourceMap, requestShortener) {
/**
* @type {Error & { file?: string }}
*/
let builtError;
if (typeof error === "string") {
builtError = new Error(`${file} from Terser plugin\n${error}`);
builtError.file = file;
return builtError;
}
if (error.line) {
const original = sourceMap && getTraceMapping().originalPositionFor(sourceMap, {
line: error.line,
column: error.col
});
if (original && original.source && requestShortener) {
builtError = new Error(`${file} from Terser plugin\n${error.message} [${requestShortener.shorten(original.source)}:${original.line},${original.column}][${file}:${error.line},${error.col}]${error.stack ? `\n${error.stack.split("\n").slice(1).join("\n")}` : ""}`);
builtError.file = file;
return builtError;
}
builtError = new Error(`${file} from Terser plugin\n${error.message} [${file}:${error.line},${error.col}]${error.stack ? `\n${error.stack.split("\n").slice(1).join("\n")}` : ""}`);
builtError.file = file;
return builtError;
}
if (error.stack) {
builtError = new Error(`${file} from Terser plugin\n${typeof error.message !== "undefined" ? error.message : ""}\n${error.stack}`);
builtError.file = file;
return builtError;
}
builtError = new Error(`${file} from Terser plugin\n${error.message}`);
builtError.file = file;
return builtError;
}
/**
* @private
* @param {Parallel} parallel
* @returns {number}
*/
static getAvailableNumberOfCores(parallel) {
// In some cases cpus() returns undefined
// https://github.com/nodejs/node/issues/19022
const cpus = typeof os.availableParallelism === "function" ? {
length: os.availableParallelism()
} : os.cpus() || {
length: 1
};
return parallel === true || typeof parallel === "undefined" ? cpus.length - 1 : Math.min(parallel || 0, cpus.length - 1);
}
/**
* @private
* @param {Compiler} compiler
* @param {Compilation} compilation
* @param {Record<string, import("webpack").sources.Source>} assets
* @param {{availableNumberOfCores: number}} optimizeOptions
* @returns {Promise<void>}
*/
async optimize(compiler, compilation, assets, optimizeOptions) {
const cache = compilation.getCache("TerserWebpackPlugin");
let numberOfAssets = 0;
const assetsForMinify = await Promise.all(Object.keys(assets).filter(name => {
const {
info
} = /** @type {Asset} */compilation.getAsset(name);
if (
// Skip double minimize assets from child compilation
info.minimized ||
// Skip minimizing for extracted comments assets
info.extractedComments) {
return false;
}
if (!compiler.webpack.ModuleFilenameHelpers.matchObject.bind(
// eslint-disable-next-line no-undefined
undefined, this.options)(name)) {
return false;
}
return true;
}).map(async name => {
const {
info,
source
} = /** @type {Asset} */
compilation.getAsset(name);
const eTag = cache.getLazyHashedEtag(source);
const cacheItem = cache.getItemCache(name, eTag);
const output = await cacheItem.getPromise();
if (!output) {
numberOfAssets += 1;
}
return {
name,
info,
inputSource: source,
output,
cacheItem
};
}));
if (assetsForMinify.length === 0) {
return;
}
/** @type {undefined | (() => MinimizerWorker<T>)} */
let getWorker;
/** @type {undefined | MinimizerWorker<T>} */
let initializedWorker;
/** @type {undefined | number} */
let numberOfWorkers;
if (optimizeOptions.availableNumberOfCores > 0) {
// Do not create unnecessary workers when the number of files is less than the available cores, it saves memory
numberOfWorkers = Math.min(numberOfAssets, optimizeOptions.availableNumberOfCores);
// eslint-disable-next-line consistent-return
getWorker = () => {
if (initializedWorker) {
return initializedWorker;
}
// eslint-disable-next-line global-require
const {
Worker
} = require("jest-worker");
initializedWorker = /** @type {MinimizerWorker<T>} */
new Worker(require.resolve("./minify"), {
numWorkers: numberOfWorkers,
enableWorkerThreads: typeof this.options.minimizer.implementation.supportsWorkerThreads !== "undefined" ? this.options.minimizer.implementation.supportsWorkerThreads() !== false : true
});
// https://github.com/facebook/jest/issues/8872#issuecomment-524822081
const workerStdout = initializedWorker.getStdout();
if (workerStdout) {
workerStdout.on("data", chunk => process.stdout.write(chunk));
}
const workerStderr = initializedWorker.getStderr();
if (workerStderr) {
workerStderr.on("data", chunk => process.stderr.write(chunk));
}
return initializedWorker;
};
}
const {
SourceMapSource,
ConcatSource,
RawSource
} = compiler.webpack.sources;
/** @typedef {{ extractedCommentsSource : import("webpack").sources.RawSource, commentsFilename: string }} ExtractedCommentsInfo */
/** @type {Map<string, ExtractedCommentsInfo>} */
const allExtractedComments = new Map();
const scheduledTasks = [];
for (const asset of assetsForMinify) {
scheduledTasks.push(async () => {
const {
name,
inputSource,
info,
cacheItem
} = asset;
let {
output
} = asset;
if (!output) {
let input;
/** @type {SourceMapInput | undefined} */
let inputSourceMap;
const {
source: sourceFromInputSource,
map
} = inputSource.sourceAndMap();
input = sourceFromInputSource;
if (map) {
if (!TerserPlugin.isSourceMap(map)) {
compilation.warnings.push( /** @type {WebpackError} */
new Error(`${name} contains invalid source map`));
} else {
inputSourceMap = /** @type {SourceMapInput} */map;
}
}
if (Buffer.isBuffer(input)) {
input = input.toString();
}
/**
* @type {InternalOptions<T>}
*/
const options = {
name,
input,
inputSourceMap,
minimizer: {
implementation: this.options.minimizer.implementation,
// @ts-ignore https://github.com/Microsoft/TypeScript/issues/10727
options: {
...this.options.minimizer.options
}
},
extractComments: this.options.extractComments
};
if (typeof options.minimizer.options.module === "undefined") {
if (typeof info.javascriptModule !== "undefined") {
options.minimizer.options.module = /** @type {PredefinedOptions<T>["module"]} */
info.javascriptModule;
} else if (/\.mjs(\?.*)?$/i.test(name)) {
options.minimizer.options.module = /** @type {PredefinedOptions<T>["module"]} */true;
} else if (/\.cjs(\?.*)?$/i.test(name)) {
options.minimizer.options.module = /** @type {PredefinedOptions<T>["module"]} */false;
}
}
if (typeof options.minimizer.options.ecma === "undefined") {
options.minimizer.options.ecma = /** @type {PredefinedOptions<T>["ecma"]} */
TerserPlugin.getEcmaVersion(compiler.options.output.environment || {});
}
try {
output = await (getWorker ? getWorker().transform(getSerializeJavascript()(options)) : minify(options));
} catch (error) {
const hasSourceMap = inputSourceMap && TerserPlugin.isSourceMap(inputSourceMap);
compilation.errors.push( /** @type {WebpackError} */
TerserPlugin.buildError(error, name, hasSourceMap ? new (getTraceMapping().TraceMap)( /** @type {SourceMapInput} */inputSourceMap) :
// eslint-disable-next-line no-undefined
undefined,
// eslint-disable-next-line no-undefined
hasSourceMap ? compilation.requestShortener : undefined));
return;
}
if (typeof output.code === "undefined") {
compilation.errors.push( /** @type {WebpackError} */
new Error(`${name} from Terser plugin\nMinimizer doesn't return result`));
return;
}
if (output.warnings && output.warnings.length > 0) {
output.warnings = output.warnings.map(
/**
* @param {Error | string} item
*/
item => TerserPlugin.buildWarning(item, name));
}
if (output.errors && output.errors.length > 0) {
const hasSourceMap = inputSourceMap && TerserPlugin.isSourceMap(inputSourceMap);
output.errors = output.errors.map(
/**
* @param {Error | string} item
*/
item => TerserPlugin.buildError(item, name, hasSourceMap ? new (getTraceMapping().TraceMap)( /** @type {SourceMapInput} */inputSourceMap) :
// eslint-disable-next-line no-undefined
undefined,
// eslint-disable-next-line no-undefined
hasSourceMap ? compilation.requestShortener : undefined));
}
let shebang;
if ( /** @type {ExtractCommentsObject} */
this.options.extractComments.banner !== false && output.extractedComments && output.extractedComments.length > 0 && output.code.startsWith("#!")) {
const firstNewlinePosition = output.code.indexOf("\n");
shebang = output.code.substring(0, firstNewlinePosition);
output.code = output.code.substring(firstNewlinePosition + 1);
}
if (output.map) {
output.source = new SourceMapSource(output.code, name, output.map, input, /** @type {SourceMapInput} */inputSourceMap, true);
} else {
output.source = new RawSource(output.code);
}
if (output.extractedComments && output.extractedComments.length > 0) {
const commentsFilename = /** @type {ExtractCommentsObject} */
this.options.extractComments.filename || "[file].LICENSE.txt[query]";
let query = "";
let filename = name;
const querySplit = filename.indexOf("?");
if (querySplit >= 0) {
query = filename.slice(querySplit);
filename = filename.slice(0, querySplit);
}
const lastSlashIndex = filename.lastIndexOf("/");
const basename = lastSlashIndex === -1 ? filename : filename.slice(lastSlashIndex + 1);
const data = {
filename,
basename,
query
};
output.commentsFilename = compilation.getPath(commentsFilename, data);
let banner;
// Add a banner to the original file
if ( /** @type {ExtractCommentsObject} */
this.options.extractComments.banner !== false) {
banner = /** @type {ExtractCommentsObject} */
this.options.extractComments.banner || `For license information please see ${path.relative(path.dirname(name), output.commentsFilename).replace(/\\/g, "/")}`;
if (typeof banner === "function") {
banner = banner(output.commentsFilename);
}
if (banner) {
output.source = new ConcatSource(shebang ? `${shebang}\n` : "", `/*! ${banner} */\n`, output.source);
}
}
const extractedCommentsString = output.extractedComments.sort().join("\n\n");
output.extractedCommentsSource = new RawSource(`${extractedCommentsString}\n`);
}
await cacheItem.storePromise({
source: output.source,
errors: output.errors,
warnings: output.warnings,
commentsFilename: output.commentsFilename,
extractedCommentsSource: output.extractedCommentsSource
});
}
if (output.warnings && output.warnings.length > 0) {
for (const warning of output.warnings) {
compilation.warnings.push( /** @type {WebpackError} */warning);
}
}
if (output.errors && output.errors.length > 0) {
for (const error of output.errors) {
compilation.errors.push( /** @type {WebpackError} */error);
}
}
/** @type {Record<string, any>} */
const newInfo = {
minimized: true
};
const {
source,
extractedCommentsSource
} = output;
// Write extracted comments to commentsFilename
if (extractedCommentsSource) {
const {
commentsFilename
} = output;
newInfo.related = {
license: commentsFilename
};
allExtractedComments.set(name, {
extractedCommentsSource,
commentsFilename
});
}
compilation.updateAsset(name, source, newInfo);
});
}
const limit = getWorker && numberOfAssets > 0 ? ( /** @type {number} */numberOfWorkers) : scheduledTasks.length;
await throttleAll(limit, scheduledTasks);
if (initializedWorker) {
await initializedWorker.end();
}
/** @typedef {{ source: import("webpack").sources.Source, commentsFilename: string, from: string }} ExtractedCommentsInfoWIthFrom */
await Array.from(allExtractedComments).sort().reduce(
/**
* @param {Promise<unknown>} previousPromise
* @param {[string, ExtractedCommentsInfo]} extractedComments
* @returns {Promise<ExtractedCommentsInfoWIthFrom>}
*/
async (previousPromise, [from, value]) => {
const previous = /** @type {ExtractedCommentsInfoWIthFrom | undefined} **/
await previousPromise;
const {
commentsFilename,
extractedCommentsSource
} = value;
if (previous && previous.commentsFilename === commentsFilename) {
const {
from: previousFrom,
source: prevSource
} = previous;
const mergedName = `${previousFrom}|${from}`;
const name = `${commentsFilename}|${mergedName}`;
const eTag = [prevSource, extractedCommentsSource].map(item => cache.getLazyHashedEtag(item)).reduce((previousValue, currentValue) => cache.mergeEtags(previousValue, currentValue));
let source = await cache.getPromise(name, eTag);
if (!source) {
source = new ConcatSource(Array.from(new Set([... /** @type {string}*/prevSource.source().split("\n\n"), ... /** @type {string}*/extractedCommentsSource.source().split("\n\n")])).join("\n\n"));
await cache.storePromise(name, eTag, source);
}
compilation.updateAsset(commentsFilename, source);
return {
source,
commentsFilename,
from: mergedName
};
}
const existingAsset = compilation.getAsset(commentsFilename);
if (existingAsset) {
return {
source: existingAsset.source,
commentsFilename,
from: commentsFilename
};
}
compilation.emitAsset(commentsFilename, extractedCommentsSource, {
extractedComments: true
});
return {
source: extractedCommentsSource,
commentsFilename,
from
};
}, /** @type {Promise<unknown>} */Promise.resolve());
}
/**
* @private
* @param {any} environment
* @returns {number}
*/
static getEcmaVersion(environment) {
// ES 6th
if (environment.arrowFunction || environment.const || environment.destructuring || environment.forOf || environment.module) {
return 2015;
}
// ES 11th
if (environment.bigIntLiteral || environment.dynamicImport) {
return 2020;
}
return 5;
}
/**
* @param {Compiler} compiler
* @returns {void}
*/
apply(compiler) {
const pluginName = this.constructor.name;
const availableNumberOfCores = TerserPlugin.getAvailableNumberOfCores(this.options.parallel);
compiler.hooks.compilation.tap(pluginName, compilation => {
const hooks = compiler.webpack.javascript.JavascriptModulesPlugin.getCompilationHooks(compilation);
const data = getSerializeJavascript()({
minimizer: typeof this.options.minimizer.implementation.getMinimizerVersion !== "undefined" ? this.options.minimizer.implementation.getMinimizerVersion() || "0.0.0" : "0.0.0",
options: this.options.minimizer.options
});
hooks.chunkHash.tap(pluginName, (chunk, hash) => {
hash.update("TerserPlugin");
hash.update(data);
});
compilation.hooks.processAssets.tapPromise({
name: pluginName,
stage: compiler.webpack.Compilation.PROCESS_ASSETS_STAGE_OPTIMIZE_SIZE,
additionalAssets: true
}, assets => this.optimize(compiler, compilation, assets, {
availableNumberOfCores
}));
compilation.hooks.statsPrinter.tap(pluginName, stats => {
stats.hooks.print.for("asset.info.minimized").tap("terser-webpack-plugin", (minimized, {
green,
formatFlag
}) => minimized ? /** @type {Function} */green( /** @type {Function} */formatFlag("minimized")) : "");
});
});
}
}
TerserPlugin.terserMinify = terserMinify;
TerserPlugin.uglifyJsMinify = uglifyJsMinify;
TerserPlugin.swcMinify = swcMinify;
TerserPlugin.esbuildMinify = esbuildMinify;
module.exports = TerserPlugin;

48
node_modules/terser-webpack-plugin/dist/minify.js generated vendored Normal file
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"use strict";
/** @typedef {import("./index.js").MinimizedResult} MinimizedResult */
/** @typedef {import("./index.js").CustomOptions} CustomOptions */
/**
* @template T
* @param {import("./index.js").InternalOptions<T>} options
* @returns {Promise<MinimizedResult>}
*/
async function minify(options) {
const {
name,
input,
inputSourceMap,
extractComments
} = options;
const {
implementation,
options: minimizerOptions
} = options.minimizer;
return implementation({
[name]: input
}, inputSourceMap, minimizerOptions, extractComments);
}
/**
* @param {string} options
* @returns {Promise<MinimizedResult>}
*/
async function transform(options) {
// 'use strict' => this === undefined (Clean Scope)
// Safer for possible security issues, albeit not critical at all here
// eslint-disable-next-line no-param-reassign
const evaluatedOptions =
/**
* @template T
* @type {import("./index.js").InternalOptions<T>}
* */
// eslint-disable-next-line no-new-func
new Function("exports", "require", "module", "__filename", "__dirname", `'use strict'\nreturn ${options}`)(exports, require, module, __filename, __dirname);
return minify(evaluatedOptions);
}
module.exports = {
minify,
transform
};

164
node_modules/terser-webpack-plugin/dist/options.json generated vendored Normal file
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{
"definitions": {
"Rule": {
"description": "Filtering rule as regex or string.",
"anyOf": [
{
"instanceof": "RegExp",
"tsType": "RegExp"
},
{
"type": "string",
"minLength": 1
}
]
},
"Rules": {
"description": "Filtering rules.",
"anyOf": [
{
"type": "array",
"items": {
"description": "A rule condition.",
"oneOf": [
{
"$ref": "#/definitions/Rule"
}
]
}
},
{
"$ref": "#/definitions/Rule"
}
]
}
},
"title": "TerserPluginOptions",
"type": "object",
"additionalProperties": false,
"properties": {
"test": {
"description": "Include all modules that pass test assertion.",
"link": "https://github.com/webpack-contrib/terser-webpack-plugin#test",
"oneOf": [
{
"$ref": "#/definitions/Rules"
}
]
},
"include": {
"description": "Include all modules matching any of these conditions.",
"link": "https://github.com/webpack-contrib/terser-webpack-plugin#include",
"oneOf": [
{
"$ref": "#/definitions/Rules"
}
]
},
"exclude": {
"description": "Exclude all modules matching any of these conditions.",
"link": "https://github.com/webpack-contrib/terser-webpack-plugin#exclude",
"oneOf": [
{
"$ref": "#/definitions/Rules"
}
]
},
"terserOptions": {
"description": "Options for `terser` (by default) or custom `minify` function.",
"link": "https://github.com/webpack-contrib/terser-webpack-plugin#terseroptions",
"additionalProperties": true,
"type": "object"
},
"extractComments": {
"description": "Whether comments shall be extracted to a separate file.",
"link": "https://github.com/webpack-contrib/terser-webpack-plugin#extractcomments",
"anyOf": [
{
"type": "boolean"
},
{
"type": "string",
"minLength": 1
},
{
"instanceof": "RegExp"
},
{
"instanceof": "Function"
},
{
"additionalProperties": false,
"properties": {
"condition": {
"anyOf": [
{
"type": "boolean"
},
{
"type": "string",
"minLength": 1
},
{
"instanceof": "RegExp"
},
{
"instanceof": "Function"
}
],
"description": "Condition what comments you need extract.",
"link": "https://github.com/webpack-contrib/terser-webpack-plugin#condition"
},
"filename": {
"anyOf": [
{
"type": "string",
"minLength": 1
},
{
"instanceof": "Function"
}
],
"description": "The file where the extracted comments will be stored. Default is to append the suffix .LICENSE.txt to the original filename.",
"link": "https://github.com/webpack-contrib/terser-webpack-plugin#filename"
},
"banner": {
"anyOf": [
{
"type": "boolean"
},
{
"type": "string",
"minLength": 1
},
{
"instanceof": "Function"
}
],
"description": "The banner text that points to the extracted file and will be added on top of the original file",
"link": "https://github.com/webpack-contrib/terser-webpack-plugin#banner"
}
},
"type": "object"
}
]
},
"parallel": {
"description": "Use multi-process parallel running to improve the build speed.",
"link": "https://github.com/webpack-contrib/terser-webpack-plugin#parallel",
"anyOf": [
{
"type": "boolean"
},
{
"type": "integer"
}
]
},
"minify": {
"description": "Allows you to override default minify function.",
"link": "https://github.com/webpack-contrib/terser-webpack-plugin#number",
"instanceof": "Function"
}
}
}

657
node_modules/terser-webpack-plugin/dist/utils.js generated vendored Normal file
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@@ -0,0 +1,657 @@
"use strict";
/** @typedef {import("@jridgewell/trace-mapping").SourceMapInput} SourceMapInput */
/** @typedef {import("./index.js").ExtractCommentsOptions} ExtractCommentsOptions */
/** @typedef {import("./index.js").ExtractCommentsFunction} ExtractCommentsFunction */
/** @typedef {import("./index.js").ExtractCommentsCondition} ExtractCommentsCondition */
/** @typedef {import("./index.js").Input} Input */
/** @typedef {import("./index.js").MinimizedResult} MinimizedResult */
/** @typedef {import("./index.js").CustomOptions} CustomOptions */
/**
* @template T
* @typedef {import("./index.js").PredefinedOptions<T>} PredefinedOptions
*/
/**
* @typedef {Array<string>} ExtractedComments
*/
const notSettled = Symbol(`not-settled`);
/**
* @template T
* @typedef {() => Promise<T>} Task
*/
/**
* Run tasks with limited concurrency.
* @template T
* @param {number} limit - Limit of tasks that run at once.
* @param {Task<T>[]} tasks - List of tasks to run.
* @returns {Promise<T[]>} A promise that fulfills to an array of the results
*/
function throttleAll(limit, tasks) {
if (!Number.isInteger(limit) || limit < 1) {
throw new TypeError(`Expected \`limit\` to be a finite number > 0, got \`${limit}\` (${typeof limit})`);
}
if (!Array.isArray(tasks) || !tasks.every(task => typeof task === `function`)) {
throw new TypeError(`Expected \`tasks\` to be a list of functions returning a promise`);
}
return new Promise((resolve, reject) => {
const result = Array(tasks.length).fill(notSettled);
const entries = tasks.entries();
const next = () => {
const {
done,
value
} = entries.next();
if (done) {
const isLast = !result.includes(notSettled);
if (isLast) resolve( /** @type{T[]} **/result);
return;
}
const [index, task] = value;
/**
* @param {T} x
*/
const onFulfilled = x => {
result[index] = x;
next();
};
task().then(onFulfilled, reject);
};
Array(limit).fill(0).forEach(next);
});
}
/* istanbul ignore next */
/**
* @param {Input} input
* @param {SourceMapInput | undefined} sourceMap
* @param {CustomOptions} minimizerOptions
* @param {ExtractCommentsOptions | undefined} extractComments
* @return {Promise<MinimizedResult>}
*/
async function terserMinify(input, sourceMap, minimizerOptions, extractComments) {
/**
* @param {any} value
* @returns {boolean}
*/
const isObject = value => {
const type = typeof value;
return value != null && (type === "object" || type === "function");
};
/**
* @param {import("terser").MinifyOptions & { sourceMap: undefined } & ({ output: import("terser").FormatOptions & { beautify: boolean } } | { format: import("terser").FormatOptions & { beautify: boolean } })} terserOptions
* @param {ExtractedComments} extractedComments
* @returns {ExtractCommentsFunction}
*/
const buildComments = (terserOptions, extractedComments) => {
/** @type {{ [index: string]: ExtractCommentsCondition }} */
const condition = {};
let comments;
if (terserOptions.format) {
({
comments
} = terserOptions.format);
} else if (terserOptions.output) {
({
comments
} = terserOptions.output);
}
condition.preserve = typeof comments !== "undefined" ? comments : false;
if (typeof extractComments === "boolean" && extractComments) {
condition.extract = "some";
} else if (typeof extractComments === "string" || extractComments instanceof RegExp) {
condition.extract = extractComments;
} else if (typeof extractComments === "function") {
condition.extract = extractComments;
} else if (extractComments && isObject(extractComments)) {
condition.extract = typeof extractComments.condition === "boolean" && extractComments.condition ? "some" : typeof extractComments.condition !== "undefined" ? extractComments.condition : "some";
} else {
// No extract
// Preserve using "commentsOpts" or "some"
condition.preserve = typeof comments !== "undefined" ? comments : "some";
condition.extract = false;
}
// Ensure that both conditions are functions
["preserve", "extract"].forEach(key => {
/** @type {undefined | string} */
let regexStr;
/** @type {undefined | RegExp} */
let regex;
switch (typeof condition[key]) {
case "boolean":
condition[key] = condition[key] ? () => true : () => false;
break;
case "function":
break;
case "string":
if (condition[key] === "all") {
condition[key] = () => true;
break;
}
if (condition[key] === "some") {
condition[key] = /** @type {ExtractCommentsFunction} */
(astNode, comment) => (comment.type === "comment2" || comment.type === "comment1") && /@preserve|@lic|@cc_on|^\**!/i.test(comment.value);
break;
}
regexStr = /** @type {string} */condition[key];
condition[key] = /** @type {ExtractCommentsFunction} */
(astNode, comment) => new RegExp( /** @type {string} */regexStr).test(comment.value);
break;
default:
regex = /** @type {RegExp} */condition[key];
condition[key] = /** @type {ExtractCommentsFunction} */
(astNode, comment) => /** @type {RegExp} */regex.test(comment.value);
}
});
// Redefine the comments function to extract and preserve
// comments according to the two conditions
return (astNode, comment) => {
if ( /** @type {{ extract: ExtractCommentsFunction }} */
condition.extract(astNode, comment)) {
const commentText = comment.type === "comment2" ? `/*${comment.value}*/` : `//${comment.value}`;
// Don't include duplicate comments
if (!extractedComments.includes(commentText)) {
extractedComments.push(commentText);
}
}
return /** @type {{ preserve: ExtractCommentsFunction }} */condition.preserve(astNode, comment);
};
};
/**
* @param {PredefinedOptions<import("terser").MinifyOptions> & import("terser").MinifyOptions} [terserOptions={}]
* @returns {import("terser").MinifyOptions & { sourceMap: undefined } & { compress: import("terser").CompressOptions } & ({ output: import("terser").FormatOptions & { beautify: boolean } } | { format: import("terser").FormatOptions & { beautify: boolean } })}
*/
const buildTerserOptions = (terserOptions = {}) => {
// Need deep copy objects to avoid https://github.com/terser/terser/issues/366
return {
...terserOptions,
compress: typeof terserOptions.compress === "boolean" ? terserOptions.compress ? {} : false : {
...terserOptions.compress
},
// ecma: terserOptions.ecma,
// ie8: terserOptions.ie8,
// keep_classnames: terserOptions.keep_classnames,
// keep_fnames: terserOptions.keep_fnames,
mangle: terserOptions.mangle == null ? true : typeof terserOptions.mangle === "boolean" ? terserOptions.mangle : {
...terserOptions.mangle
},
// module: terserOptions.module,
// nameCache: { ...terserOptions.toplevel },
// the `output` option is deprecated
...(terserOptions.format ? {
format: {
beautify: false,
...terserOptions.format
}
} : {
output: {
beautify: false,
...terserOptions.output
}
}),
parse: {
...terserOptions.parse
},
// safari10: terserOptions.safari10,
// Ignoring sourceMap from options
// eslint-disable-next-line no-undefined
sourceMap: undefined
// toplevel: terserOptions.toplevel
};
};
// eslint-disable-next-line global-require
const {
minify
} = require("terser");
// Copy `terser` options
const terserOptions = buildTerserOptions(minimizerOptions);
// Let terser generate a SourceMap
if (sourceMap) {
// @ts-ignore
terserOptions.sourceMap = {
asObject: true
};
}
/** @type {ExtractedComments} */
const extractedComments = [];
if (terserOptions.output) {
terserOptions.output.comments = buildComments(terserOptions, extractedComments);
} else if (terserOptions.format) {
terserOptions.format.comments = buildComments(terserOptions, extractedComments);
}
if (terserOptions.compress) {
// More optimizations
if (typeof terserOptions.compress.ecma === "undefined") {
terserOptions.compress.ecma = terserOptions.ecma;
}
// https://github.com/webpack/webpack/issues/16135
if (terserOptions.ecma === 5 && typeof terserOptions.compress.arrows === "undefined") {
terserOptions.compress.arrows = false;
}
}
const [[filename, code]] = Object.entries(input);
const result = await minify({
[filename]: code
}, terserOptions);
return {
code: ( /** @type {string} **/result.code),
// @ts-ignore
// eslint-disable-next-line no-undefined
map: result.map ? ( /** @type {SourceMapInput} **/result.map) : undefined,
extractedComments
};
}
/**
* @returns {string | undefined}
*/
terserMinify.getMinimizerVersion = () => {
let packageJson;
try {
// eslint-disable-next-line global-require
packageJson = require("terser/package.json");
} catch (error) {
// Ignore
}
return packageJson && packageJson.version;
};
/**
* @returns {boolean | undefined}
*/
terserMinify.supportsWorkerThreads = () => true;
/* istanbul ignore next */
/**
* @param {Input} input
* @param {SourceMapInput | undefined} sourceMap
* @param {CustomOptions} minimizerOptions
* @param {ExtractCommentsOptions | undefined} extractComments
* @return {Promise<MinimizedResult>}
*/
async function uglifyJsMinify(input, sourceMap, minimizerOptions, extractComments) {
/**
* @param {any} value
* @returns {boolean}
*/
const isObject = value => {
const type = typeof value;
return value != null && (type === "object" || type === "function");
};
/**
* @param {import("uglify-js").MinifyOptions & { sourceMap: undefined } & { output: import("uglify-js").OutputOptions & { beautify: boolean }}} uglifyJsOptions
* @param {ExtractedComments} extractedComments
* @returns {ExtractCommentsFunction}
*/
const buildComments = (uglifyJsOptions, extractedComments) => {
/** @type {{ [index: string]: ExtractCommentsCondition }} */
const condition = {};
const {
comments
} = uglifyJsOptions.output;
condition.preserve = typeof comments !== "undefined" ? comments : false;
if (typeof extractComments === "boolean" && extractComments) {
condition.extract = "some";
} else if (typeof extractComments === "string" || extractComments instanceof RegExp) {
condition.extract = extractComments;
} else if (typeof extractComments === "function") {
condition.extract = extractComments;
} else if (extractComments && isObject(extractComments)) {
condition.extract = typeof extractComments.condition === "boolean" && extractComments.condition ? "some" : typeof extractComments.condition !== "undefined" ? extractComments.condition : "some";
} else {
// No extract
// Preserve using "commentsOpts" or "some"
condition.preserve = typeof comments !== "undefined" ? comments : "some";
condition.extract = false;
}
// Ensure that both conditions are functions
["preserve", "extract"].forEach(key => {
/** @type {undefined | string} */
let regexStr;
/** @type {undefined | RegExp} */
let regex;
switch (typeof condition[key]) {
case "boolean":
condition[key] = condition[key] ? () => true : () => false;
break;
case "function":
break;
case "string":
if (condition[key] === "all") {
condition[key] = () => true;
break;
}
if (condition[key] === "some") {
condition[key] = /** @type {ExtractCommentsFunction} */
(astNode, comment) => (comment.type === "comment2" || comment.type === "comment1") && /@preserve|@lic|@cc_on|^\**!/i.test(comment.value);
break;
}
regexStr = /** @type {string} */condition[key];
condition[key] = /** @type {ExtractCommentsFunction} */
(astNode, comment) => new RegExp( /** @type {string} */regexStr).test(comment.value);
break;
default:
regex = /** @type {RegExp} */condition[key];
condition[key] = /** @type {ExtractCommentsFunction} */
(astNode, comment) => /** @type {RegExp} */regex.test(comment.value);
}
});
// Redefine the comments function to extract and preserve
// comments according to the two conditions
return (astNode, comment) => {
if ( /** @type {{ extract: ExtractCommentsFunction }} */
condition.extract(astNode, comment)) {
const commentText = comment.type === "comment2" ? `/*${comment.value}*/` : `//${comment.value}`;
// Don't include duplicate comments
if (!extractedComments.includes(commentText)) {
extractedComments.push(commentText);
}
}
return /** @type {{ preserve: ExtractCommentsFunction }} */condition.preserve(astNode, comment);
};
};
/**
* @param {PredefinedOptions<import("uglify-js").MinifyOptions> & import("uglify-js").MinifyOptions} [uglifyJsOptions={}]
* @returns {import("uglify-js").MinifyOptions & { sourceMap: undefined } & { output: import("uglify-js").OutputOptions & { beautify: boolean }}}
*/
const buildUglifyJsOptions = (uglifyJsOptions = {}) => {
// eslint-disable-next-line no-param-reassign
delete minimizerOptions.ecma;
// eslint-disable-next-line no-param-reassign
delete minimizerOptions.module;
// Need deep copy objects to avoid https://github.com/terser/terser/issues/366
return {
...uglifyJsOptions,
// warnings: uglifyJsOptions.warnings,
parse: {
...uglifyJsOptions.parse
},
compress: typeof uglifyJsOptions.compress === "boolean" ? uglifyJsOptions.compress : {
...uglifyJsOptions.compress
},
mangle: uglifyJsOptions.mangle == null ? true : typeof uglifyJsOptions.mangle === "boolean" ? uglifyJsOptions.mangle : {
...uglifyJsOptions.mangle
},
output: {
beautify: false,
...uglifyJsOptions.output
},
// Ignoring sourceMap from options
// eslint-disable-next-line no-undefined
sourceMap: undefined
// toplevel: uglifyJsOptions.toplevel
// nameCache: { ...uglifyJsOptions.toplevel },
// ie8: uglifyJsOptions.ie8,
// keep_fnames: uglifyJsOptions.keep_fnames,
};
};
// eslint-disable-next-line global-require, import/no-extraneous-dependencies
const {
minify
} = require("uglify-js");
// Copy `uglify-js` options
const uglifyJsOptions = buildUglifyJsOptions(minimizerOptions);
// Let terser generate a SourceMap
if (sourceMap) {
// @ts-ignore
uglifyJsOptions.sourceMap = true;
}
/** @type {ExtractedComments} */
const extractedComments = [];
// @ts-ignore
uglifyJsOptions.output.comments = buildComments(uglifyJsOptions, extractedComments);
const [[filename, code]] = Object.entries(input);
const result = await minify({
[filename]: code
}, uglifyJsOptions);
return {
code: result.code,
// eslint-disable-next-line no-undefined
map: result.map ? JSON.parse(result.map) : undefined,
errors: result.error ? [result.error] : [],
warnings: result.warnings || [],
extractedComments
};
}
/**
* @returns {string | undefined}
*/
uglifyJsMinify.getMinimizerVersion = () => {
let packageJson;
try {
// eslint-disable-next-line global-require, import/no-extraneous-dependencies
packageJson = require("uglify-js/package.json");
} catch (error) {
// Ignore
}
return packageJson && packageJson.version;
};
/**
* @returns {boolean | undefined}
*/
uglifyJsMinify.supportsWorkerThreads = () => true;
/* istanbul ignore next */
/**
* @param {Input} input
* @param {SourceMapInput | undefined} sourceMap
* @param {CustomOptions} minimizerOptions
* @return {Promise<MinimizedResult>}
*/
async function swcMinify(input, sourceMap, minimizerOptions) {
/**
* @param {PredefinedOptions<import("@swc/core").JsMinifyOptions> & import("@swc/core").JsMinifyOptions} [swcOptions={}]
* @returns {import("@swc/core").JsMinifyOptions & { sourceMap: undefined } & { compress: import("@swc/core").TerserCompressOptions }}
*/
const buildSwcOptions = (swcOptions = {}) => {
// Need deep copy objects to avoid https://github.com/terser/terser/issues/366
return {
...swcOptions,
compress: typeof swcOptions.compress === "boolean" ? swcOptions.compress ? {} : false : {
...swcOptions.compress
},
mangle: swcOptions.mangle == null ? true : typeof swcOptions.mangle === "boolean" ? swcOptions.mangle : {
...swcOptions.mangle
},
// ecma: swcOptions.ecma,
// keep_classnames: swcOptions.keep_classnames,
// keep_fnames: swcOptions.keep_fnames,
// module: swcOptions.module,
// safari10: swcOptions.safari10,
// toplevel: swcOptions.toplevel
// eslint-disable-next-line no-undefined
sourceMap: undefined
};
};
// eslint-disable-next-line import/no-extraneous-dependencies, global-require
const swc = require("@swc/core");
// Copy `swc` options
const swcOptions = buildSwcOptions(minimizerOptions);
// Let `swc` generate a SourceMap
if (sourceMap) {
// @ts-ignore
swcOptions.sourceMap = true;
}
if (swcOptions.compress) {
// More optimizations
if (typeof swcOptions.compress.ecma === "undefined") {
swcOptions.compress.ecma = swcOptions.ecma;
}
// https://github.com/webpack/webpack/issues/16135
if (swcOptions.ecma === 5 && typeof swcOptions.compress.arrows === "undefined") {
swcOptions.compress.arrows = false;
}
}
const [[filename, code]] = Object.entries(input);
const result = await swc.minify(code, swcOptions);
let map;
if (result.map) {
map = JSON.parse(result.map);
// TODO workaround for swc because `filename` is not preset as in `swc` signature as for `terser`
map.sources = [filename];
delete map.sourcesContent;
}
return {
code: result.code,
map
};
}
/**
* @returns {string | undefined}
*/
swcMinify.getMinimizerVersion = () => {
let packageJson;
try {
// eslint-disable-next-line global-require, import/no-extraneous-dependencies
packageJson = require("@swc/core/package.json");
} catch (error) {
// Ignore
}
return packageJson && packageJson.version;
};
/**
* @returns {boolean | undefined}
*/
swcMinify.supportsWorkerThreads = () => false;
/* istanbul ignore next */
/**
* @param {Input} input
* @param {SourceMapInput | undefined} sourceMap
* @param {CustomOptions} minimizerOptions
* @return {Promise<MinimizedResult>}
*/
async function esbuildMinify(input, sourceMap, minimizerOptions) {
/**
* @param {PredefinedOptions<import("esbuild").TransformOptions> & import("esbuild").TransformOptions} [esbuildOptions={}]
* @returns {import("esbuild").TransformOptions}
*/
const buildEsbuildOptions = (esbuildOptions = {}) => {
// eslint-disable-next-line no-param-reassign
delete esbuildOptions.ecma;
if (esbuildOptions.module) {
// eslint-disable-next-line no-param-reassign
esbuildOptions.format = "esm";
}
// eslint-disable-next-line no-param-reassign
delete esbuildOptions.module;
// Need deep copy objects to avoid https://github.com/terser/terser/issues/366
return {
minify: true,
legalComments: "inline",
...esbuildOptions,
sourcemap: false
};
};
// eslint-disable-next-line import/no-extraneous-dependencies, global-require
const esbuild = require("esbuild");
// Copy `esbuild` options
const esbuildOptions = buildEsbuildOptions(minimizerOptions);
// Let `esbuild` generate a SourceMap
if (sourceMap) {
esbuildOptions.sourcemap = true;
esbuildOptions.sourcesContent = false;
}
const [[filename, code]] = Object.entries(input);
esbuildOptions.sourcefile = filename;
const result = await esbuild.transform(code, esbuildOptions);
return {
code: result.code,
// eslint-disable-next-line no-undefined
map: result.map ? JSON.parse(result.map) : undefined,
warnings: result.warnings.length > 0 ? result.warnings.map(item => {
const plugin = item.pluginName ? `\nPlugin Name: ${item.pluginName}` : "";
const location = item.location ? `\n\n${item.location.file}:${item.location.line}:${item.location.column}:\n ${item.location.line} | ${item.location.lineText}\n\nSuggestion: ${item.location.suggestion}` : "";
const notes = item.notes.length > 0 ? `\n\nNotes:\n${item.notes.map(note => `${note.location ? `[${note.location.file}:${note.location.line}:${note.location.column}] ` : ""}${note.text}${note.location ? `\nSuggestion: ${note.location.suggestion}` : ""}${note.location ? `\nLine text:\n${note.location.lineText}\n` : ""}`).join("\n")}` : "";
return `${item.text} [${item.id}]${plugin}${location}${item.detail ? `\nDetails:\n${item.detail}` : ""}${notes}`;
}) : []
};
}
/**
* @returns {string | undefined}
*/
esbuildMinify.getMinimizerVersion = () => {
let packageJson;
try {
// eslint-disable-next-line global-require, import/no-extraneous-dependencies
packageJson = require("esbuild/package.json");
} catch (error) {
// Ignore
}
return packageJson && packageJson.version;
};
/**
* @returns {boolean | undefined}
*/
esbuildMinify.supportsWorkerThreads = () => false;
/**
* @template T
* @param fn {(function(): any) | undefined}
* @returns {function(): T}
*/
function memoize(fn) {
let cache = false;
/** @type {T} */
let result;
return () => {
if (cache) {
return result;
}
result = /** @type {function(): any} */fn();
cache = true;
// Allow to clean up memory for fn
// and all dependent resources
// eslint-disable-next-line no-undefined, no-param-reassign
fn = undefined;
return result;
};
}
module.exports = {
throttleAll,
memoize,
terserMinify,
uglifyJsMinify,
swcMinify,
esbuildMinify
};

120
node_modules/terser-webpack-plugin/package.json generated vendored Normal file
View File

@@ -0,0 +1,120 @@
{
"name": "terser-webpack-plugin",
"version": "5.3.14",
"description": "Terser plugin for webpack",
"license": "MIT",
"repository": "webpack-contrib/terser-webpack-plugin",
"author": "webpack Contrib Team",
"homepage": "https://github.com/webpack-contrib/terser-webpack-plugin",
"bugs": "https://github.com/webpack-contrib/terser-webpack-plugin/issues",
"funding": {
"type": "opencollective",
"url": "https://opencollective.com/webpack"
},
"main": "dist/index.js",
"types": "types/index.d.ts",
"engines": {
"node": ">= 10.13.0"
},
"scripts": {
"clean": "del-cli dist types",
"prebuild": "npm run clean",
"build:types": "tsc --declaration --emitDeclarationOnly --outDir types && prettier \"types/**/*.ts\" --write",
"build:code": "cross-env NODE_ENV=production babel src -d dist --copy-files",
"build": "npm-run-all -p \"build:**\"",
"commitlint": "commitlint --from=master",
"security": "npm audit --production",
"lint:prettier": "prettier --list-different .",
"lint:js": "eslint --cache .",
"lint:spelling": "cspell \"**/*.*\"",
"lint:types": "tsc --pretty --noEmit",
"lint": "npm-run-all -l -p \"lint:**\"",
"fix:js": "npm run lint:js -- --fix",
"fix:prettier": "npm run lint:prettier -- --write",
"fix": "npm-run-all -l fix:js fix:prettier",
"test:only": "cross-env NODE_ENV=test jest",
"test:watch": "npm run test:only -- --watch",
"test:coverage": "npm run test:only -- --collectCoverageFrom=\"src/**/*.js\" --coverage",
"pretest": "npm run lint",
"test": "npm run test:coverage",
"prepare": "husky install && npm run build",
"release": "standard-version"
},
"files": [
"dist",
"types"
],
"peerDependencies": {
"webpack": "^5.1.0"
},
"peerDependenciesMeta": {
"@swc/core": {
"optional": true
},
"uglify-js": {
"optional": true
},
"esbuild": {
"optional": true
}
},
"dependencies": {
"@jridgewell/trace-mapping": "^0.3.25",
"jest-worker": "^27.4.5",
"schema-utils": "^4.3.0",
"serialize-javascript": "^6.0.2",
"terser": "^5.31.1"
},
"devDependencies": {
"@babel/cli": "^7.24.7",
"@babel/core": "^7.24.7",
"@babel/preset-env": "^7.24.7",
"@commitlint/cli": "^17.7.1",
"@commitlint/config-conventional": "^17.7.0",
"@swc/core": "^1.3.102",
"@types/node": "^18.15.11",
"@types/serialize-javascript": "^5.0.2",
"@types/uglify-js": "^3.17.5",
"@webpack-contrib/eslint-config-webpack": "^3.0.0",
"babel-jest": "^28.1.2",
"copy-webpack-plugin": "^9.0.1",
"cross-env": "^7.0.3",
"cspell": "^6.31.2",
"del": "^6.0.0",
"del-cli": "^3.0.1",
"esbuild": "^0.19.11",
"eslint": "^7.32.0",
"eslint-config-prettier": "^8.9.0",
"eslint-plugin-import": "^2.28.1",
"file-loader": "^6.2.0",
"husky": "^7.0.2",
"jest": "^27.5.1",
"lint-staged": "^13.2.3",
"memfs": "^3.4.13",
"npm-run-all": "^4.1.5",
"prettier": "^2.8.7",
"standard-version": "^9.3.1",
"typescript": "^4.9.5",
"uglify-js": "^3.18.0",
"webpack": "^5.92.1",
"webpack-cli": "^4.10.0",
"worker-loader": "^3.0.8"
},
"keywords": [
"uglify",
"uglify-js",
"uglify-es",
"terser",
"webpack",
"webpack-plugin",
"minification",
"compress",
"compressor",
"min",
"minification",
"minifier",
"minify",
"optimize",
"optimizer"
]
}

229
node_modules/terser-webpack-plugin/types/index.d.ts generated vendored Normal file
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@@ -0,0 +1,229 @@
export = TerserPlugin;
/**
* @template [T=import("terser").MinifyOptions]
*/
declare class TerserPlugin<T = import("terser").MinifyOptions> {
/**
* @private
* @param {any} input
* @returns {boolean}
*/
private static isSourceMap;
/**
* @private
* @param {unknown} warning
* @param {string} file
* @returns {Error}
*/
private static buildWarning;
/**
* @private
* @param {any} error
* @param {string} file
* @param {TraceMap} [sourceMap]
* @param {Compilation["requestShortener"]} [requestShortener]
* @returns {Error}
*/
private static buildError;
/**
* @private
* @param {Parallel} parallel
* @returns {number}
*/
private static getAvailableNumberOfCores;
/**
* @private
* @param {any} environment
* @returns {number}
*/
private static getEcmaVersion;
/**
* @param {BasePluginOptions & DefinedDefaultMinimizerAndOptions<T>} [options]
*/
constructor(
options?:
| (BasePluginOptions & DefinedDefaultMinimizerAndOptions<T>)
| undefined
);
/**
* @private
* @type {InternalPluginOptions<T>}
*/
private options;
/**
* @private
* @param {Compiler} compiler
* @param {Compilation} compilation
* @param {Record<string, import("webpack").sources.Source>} assets
* @param {{availableNumberOfCores: number}} optimizeOptions
* @returns {Promise<void>}
*/
private optimize;
/**
* @param {Compiler} compiler
* @returns {void}
*/
apply(compiler: Compiler): void;
}
declare namespace TerserPlugin {
export {
terserMinify,
uglifyJsMinify,
swcMinify,
esbuildMinify,
Schema,
Compiler,
Compilation,
WebpackError,
Asset,
JestWorker,
SourceMapInput,
TraceMap,
Rule,
Rules,
ExtractCommentsFunction,
ExtractCommentsCondition,
ExtractCommentsFilename,
ExtractCommentsBanner,
ExtractCommentsObject,
ExtractCommentsOptions,
MinimizedResult,
Input,
CustomOptions,
InferDefaultType,
PredefinedOptions,
MinimizerOptions,
BasicMinimizerImplementation,
MinimizeFunctionHelpers,
MinimizerImplementation,
InternalOptions,
MinimizerWorker,
Parallel,
BasePluginOptions,
DefinedDefaultMinimizerAndOptions,
InternalPluginOptions,
};
}
type Compiler = import("webpack").Compiler;
type BasePluginOptions = {
test?: Rules | undefined;
include?: Rules | undefined;
exclude?: Rules | undefined;
extractComments?: ExtractCommentsOptions | undefined;
parallel?: Parallel;
};
type DefinedDefaultMinimizerAndOptions<T> =
T extends import("terser").MinifyOptions
? {
minify?: MinimizerImplementation<T> | undefined;
terserOptions?: MinimizerOptions<T> | undefined;
}
: {
minify: MinimizerImplementation<T>;
terserOptions?: MinimizerOptions<T> | undefined;
};
import { terserMinify } from "./utils";
import { uglifyJsMinify } from "./utils";
import { swcMinify } from "./utils";
import { esbuildMinify } from "./utils";
type Schema = import("schema-utils/declarations/validate").Schema;
type Compilation = import("webpack").Compilation;
type WebpackError = import("webpack").WebpackError;
type Asset = import("webpack").Asset;
type JestWorker = import("jest-worker").Worker;
type SourceMapInput = import("@jridgewell/trace-mapping").SourceMapInput;
type TraceMap = import("@jridgewell/trace-mapping").TraceMap;
type Rule = RegExp | string;
type Rules = Rule[] | Rule;
type ExtractCommentsFunction = (
astNode: any,
comment: {
value: string;
type: "comment1" | "comment2" | "comment3" | "comment4";
pos: number;
line: number;
col: number;
}
) => boolean;
type ExtractCommentsCondition =
| boolean
| "all"
| "some"
| RegExp
| ExtractCommentsFunction;
type ExtractCommentsFilename = string | ((fileData: any) => string);
type ExtractCommentsBanner =
| string
| boolean
| ((commentsFile: string) => string);
type ExtractCommentsObject = {
condition?: ExtractCommentsCondition | undefined;
filename?: ExtractCommentsFilename | undefined;
banner?: ExtractCommentsBanner | undefined;
};
type ExtractCommentsOptions = ExtractCommentsCondition | ExtractCommentsObject;
type MinimizedResult = {
code: string;
map?: import("@jridgewell/trace-mapping").SourceMapInput | undefined;
errors?: (string | Error)[] | undefined;
warnings?: (string | Error)[] | undefined;
extractedComments?: string[] | undefined;
};
type Input = {
[file: string]: string;
};
type CustomOptions = {
[key: string]: any;
};
type InferDefaultType<T> = T extends infer U ? U : CustomOptions;
type PredefinedOptions<T> = {
module?:
| (T extends {
module?: infer P | undefined;
}
? P
: string | boolean)
| undefined;
ecma?:
| (T extends {
ecma?: infer P_1 | undefined;
}
? P_1
: string | number)
| undefined;
};
type MinimizerOptions<T> = PredefinedOptions<T> & InferDefaultType<T>;
type BasicMinimizerImplementation<T> = (
input: Input,
sourceMap: SourceMapInput | undefined,
minifyOptions: MinimizerOptions<T>,
extractComments: ExtractCommentsOptions | undefined
) => Promise<MinimizedResult>;
type MinimizeFunctionHelpers = {
getMinimizerVersion?: (() => string | undefined) | undefined;
supportsWorkerThreads?: (() => boolean | undefined) | undefined;
};
type MinimizerImplementation<T> = BasicMinimizerImplementation<T> &
MinimizeFunctionHelpers;
type InternalOptions<T> = {
name: string;
input: string;
inputSourceMap: SourceMapInput | undefined;
extractComments: ExtractCommentsOptions | undefined;
minimizer: {
implementation: MinimizerImplementation<T>;
options: MinimizerOptions<T>;
};
};
type MinimizerWorker<T> = import("jest-worker").Worker & {
transform: (options: string) => MinimizedResult;
minify: (options: InternalOptions<T>) => MinimizedResult;
};
type Parallel = undefined | boolean | number;
type InternalPluginOptions<T> = BasePluginOptions & {
minimizer: {
implementation: MinimizerImplementation<T>;
options: MinimizerOptions<T>;
};
};
import { minify } from "./minify";

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node_modules/terser-webpack-plugin/types/minify.d.ts generated vendored Normal file
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export type MinimizedResult = import("./index.js").MinimizedResult;
export type CustomOptions = import("./index.js").CustomOptions;
/** @typedef {import("./index.js").MinimizedResult} MinimizedResult */
/** @typedef {import("./index.js").CustomOptions} CustomOptions */
/**
* @template T
* @param {import("./index.js").InternalOptions<T>} options
* @returns {Promise<MinimizedResult>}
*/
export function minify<T>(
options: import("./index.js").InternalOptions<T>
): Promise<MinimizedResult>;
/**
* @param {string} options
* @returns {Promise<MinimizedResult>}
*/
export function transform(options: string): Promise<MinimizedResult>;

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node_modules/terser-webpack-plugin/types/utils.d.ts generated vendored Normal file
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export type Task<T> = () => Promise<T>;
export type SourceMapInput = import("@jridgewell/trace-mapping").SourceMapInput;
export type ExtractCommentsOptions =
import("./index.js").ExtractCommentsOptions;
export type ExtractCommentsFunction =
import("./index.js").ExtractCommentsFunction;
export type ExtractCommentsCondition =
import("./index.js").ExtractCommentsCondition;
export type Input = import("./index.js").Input;
export type MinimizedResult = import("./index.js").MinimizedResult;
export type CustomOptions = import("./index.js").CustomOptions;
export type PredefinedOptions<T> = import("./index.js").PredefinedOptions<T>;
export type ExtractedComments = Array<string>;
/**
* @template T
* @typedef {() => Promise<T>} Task
*/
/**
* Run tasks with limited concurrency.
* @template T
* @param {number} limit - Limit of tasks that run at once.
* @param {Task<T>[]} tasks - List of tasks to run.
* @returns {Promise<T[]>} A promise that fulfills to an array of the results
*/
export function throttleAll<T>(limit: number, tasks: Task<T>[]): Promise<T[]>;
/**
* @template T
* @param fn {(function(): any) | undefined}
* @returns {function(): T}
*/
export function memoize<T>(fn: (() => any) | undefined): () => T;
/**
* @param {Input} input
* @param {SourceMapInput | undefined} sourceMap
* @param {CustomOptions} minimizerOptions
* @param {ExtractCommentsOptions | undefined} extractComments
* @return {Promise<MinimizedResult>}
*/
export function terserMinify(
input: Input,
sourceMap: SourceMapInput | undefined,
minimizerOptions: CustomOptions,
extractComments: ExtractCommentsOptions | undefined
): Promise<MinimizedResult>;
export namespace terserMinify {
/**
* @returns {string | undefined}
*/
function getMinimizerVersion(): string | undefined;
/**
* @returns {boolean | undefined}
*/
function supportsWorkerThreads(): boolean | undefined;
}
/**
* @param {Input} input
* @param {SourceMapInput | undefined} sourceMap
* @param {CustomOptions} minimizerOptions
* @param {ExtractCommentsOptions | undefined} extractComments
* @return {Promise<MinimizedResult>}
*/
export function uglifyJsMinify(
input: Input,
sourceMap: SourceMapInput | undefined,
minimizerOptions: CustomOptions,
extractComments: ExtractCommentsOptions | undefined
): Promise<MinimizedResult>;
export namespace uglifyJsMinify {
/**
* @returns {string | undefined}
*/
function getMinimizerVersion(): string | undefined;
/**
* @returns {boolean | undefined}
*/
function supportsWorkerThreads(): boolean | undefined;
}
/**
* @param {Input} input
* @param {SourceMapInput | undefined} sourceMap
* @param {CustomOptions} minimizerOptions
* @return {Promise<MinimizedResult>}
*/
export function swcMinify(
input: Input,
sourceMap: SourceMapInput | undefined,
minimizerOptions: CustomOptions
): Promise<MinimizedResult>;
export namespace swcMinify {
/**
* @returns {string | undefined}
*/
function getMinimizerVersion(): string | undefined;
/**
* @returns {boolean | undefined}
*/
function supportsWorkerThreads(): boolean | undefined;
}
/**
* @param {Input} input
* @param {SourceMapInput | undefined} sourceMap
* @param {CustomOptions} minimizerOptions
* @return {Promise<MinimizedResult>}
*/
export function esbuildMinify(
input: Input,
sourceMap: SourceMapInput | undefined,
minimizerOptions: CustomOptions
): Promise<MinimizedResult>;
export namespace esbuildMinify {
/**
* @returns {string | undefined}
*/
function getMinimizerVersion(): string | undefined;
/**
* @returns {boolean | undefined}
*/
function supportsWorkerThreads(): boolean | undefined;
}