// Type definitions for terser-webpack-plugin 4.2
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// Project: https://github.com/webpack-contrib/terser-webpack-plugin
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// Definitions by: Daniel Schopf <https://github.com/Danscho>
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// Piotr Błażejewicz <https://github.com/peterblazejewicz>
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// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
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// TypeScript Version: 3.7
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import { Plugin } from 'webpack';
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import { MinifyOptions } from 'terser';
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/**
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* This plugin uses terser to minify your JavaScript.
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*/
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declare namespace TerserPlugin {
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interface MinifyResult {
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map: any;
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code: any;
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extractedComments: any;
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}
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interface FileData {
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readonly filename: string;
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readonly basename: string;
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readonly query: string;
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readonly hash: string;
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}
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interface ExtractCommentOptions {
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condition: string | RegExp | ExtractCommentFn;
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filename?: string | FilenameFn;
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banner?: boolean | string | FormatFn;
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}
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type ExtractCommentFn = (astNode: any, comment: any) => boolean | object;
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type FormatFn = (input: string) => string;
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type FilenameFn = (fileData: FileData) => string;
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interface TerserPluginOptions {
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/**
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* Test to match files against.
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* @default /\.m?js(\?.*)?$/i
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*/
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test?: string | RegExp | Array<string | RegExp>;
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/**
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* Files to include.
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* @default undefined
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*/
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include?: string | RegExp | Array<string | RegExp>;
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/**
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* Files to exclude.
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* @default undefined
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*/
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exclude?: string | RegExp | Array<string | RegExp>;
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/**
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* ⚠ Ignored in webpack 5! Please use {@link webpack.js.org/configuration/other-options/#cache.}
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* Enable/disable file caching.
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* Default path to cache directory: `node_modules/.cache/terser-webpack-plugin`.
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* @default true
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*/
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cache?: boolean | string;
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/**
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* ⚠ Ignored in webpack 5! Please use {@link webpack.js.org/configuration/other-options/#cache}.
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* Allows you to override default cache keys.
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*/
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cacheKeys?: (defaultCacheKeys: any, file: any) => object;
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/**
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* Enable/disable multi-process parallel running.
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* Use multi-process parallel running to improve the build speed. Default number of concurrent runs: os.cpus().length - 1.
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* @default true
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*/
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parallel?: boolean | number;
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/**
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* Use source maps to map error message locations to modules (this slows down the compilation).
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* If you use your own minify function please read the minify section for handling source maps correctly.
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* @default false
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*/
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sourceMap?: boolean;
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/**
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* Allows you to override default minify function.
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* By default plugin uses terser package. Useful for using and testing unpublished versions or forks
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* @default undefined
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*/
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minify?: (file: any, sourceMap: any, minimizerOptions?: MinifyOptions) => MinifyResult;
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/**
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* Terser minify {@link https://github.com/terser/terser#minify-options|options}.
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*/
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terserOptions?: MinifyOptions;
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/**
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* Whether comments shall be extracted to a separate file, (see details).
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* By default extract only comments using /^\**!|@preserve|@license|@cc_on/i regexp condition and remove remaining comments.
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* If the original file is named foo.js, then the comments will be stored to foo.js.LICENSE.txt.
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* The terserOptions.output.comments option specifies whether the comment will be preserved,
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* i.e. it is possible to preserve some comments (e.g. annotations) while extracting others or even preserving comments that have been extracted
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* @default true
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*/
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extractComments?: boolean | string | RegExp | ExtractCommentFn | ExtractCommentOptions;
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}
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}
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declare class TerserPlugin extends Plugin {
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constructor(opts?: TerserPlugin.TerserPluginOptions);
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}
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export = TerserPlugin;
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