657 lines
		
	
	
		
			22 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			657 lines
		
	
	
		
			22 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
"use strict";
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/** @typedef {import("@jridgewell/trace-mapping").SourceMapInput} SourceMapInput */
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/** @typedef {import("./index.js").ExtractCommentsOptions} ExtractCommentsOptions */
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/** @typedef {import("./index.js").ExtractCommentsFunction} ExtractCommentsFunction */
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/** @typedef {import("./index.js").ExtractCommentsCondition} ExtractCommentsCondition */
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/** @typedef {import("./index.js").Input} Input */
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/** @typedef {import("./index.js").MinimizedResult} MinimizedResult */
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/** @typedef {import("./index.js").CustomOptions} CustomOptions */
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/**
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 * @template T
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 * @typedef {import("./index.js").PredefinedOptions<T>} PredefinedOptions
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 */
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/**
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 * @typedef {Array<string>} ExtractedComments
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 */
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const notSettled = Symbol(`not-settled`);
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/**
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 * @template T
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 * @typedef {() => Promise<T>} Task
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 */
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/**
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 * Run tasks with limited concurrency.
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 * @template T
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 * @param {number} limit - Limit of tasks that run at once.
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 * @param {Task<T>[]} tasks - List of tasks to run.
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 * @returns {Promise<T[]>} A promise that fulfills to an array of the results
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 */
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function throttleAll(limit, tasks) {
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  if (!Number.isInteger(limit) || limit < 1) {
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    throw new TypeError(`Expected \`limit\` to be a finite number > 0, got \`${limit}\` (${typeof limit})`);
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  }
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  if (!Array.isArray(tasks) || !tasks.every(task => typeof task === `function`)) {
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    throw new TypeError(`Expected \`tasks\` to be a list of functions returning a promise`);
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  }
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  return new Promise((resolve, reject) => {
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    const result = Array(tasks.length).fill(notSettled);
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    const entries = tasks.entries();
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    const next = () => {
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      const {
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        done,
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        value
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      } = entries.next();
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      if (done) {
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        const isLast = !result.includes(notSettled);
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        if (isLast) resolve( /** @type{T[]} **/result);
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        return;
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      }
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      const [index, task] = value;
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      /**
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       * @param {T} x
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       */
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      const onFulfilled = x => {
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        result[index] = x;
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        next();
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      };
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      task().then(onFulfilled, reject);
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    };
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    Array(limit).fill(0).forEach(next);
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  });
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}
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/* istanbul ignore next */
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/**
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 * @param {Input} input
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 * @param {SourceMapInput | undefined} sourceMap
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 * @param {CustomOptions} minimizerOptions
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 * @param {ExtractCommentsOptions | undefined} extractComments
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 * @return {Promise<MinimizedResult>}
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 */
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async function terserMinify(input, sourceMap, minimizerOptions, extractComments) {
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  /**
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   * @param {any} value
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   * @returns {boolean}
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   */
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  const isObject = value => {
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    const type = typeof value;
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    return value != null && (type === "object" || type === "function");
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  };
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  /**
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   * @param {import("terser").MinifyOptions & { sourceMap: undefined } & ({ output: import("terser").FormatOptions & { beautify: boolean } } | { format: import("terser").FormatOptions & { beautify: boolean } })} terserOptions
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   * @param {ExtractedComments} extractedComments
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   * @returns {ExtractCommentsFunction}
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   */
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  const buildComments = (terserOptions, extractedComments) => {
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    /** @type {{ [index: string]: ExtractCommentsCondition }} */
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    const condition = {};
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    let comments;
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    if (terserOptions.format) {
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      ({
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        comments
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      } = terserOptions.format);
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    } else if (terserOptions.output) {
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      ({
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        comments
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      } = terserOptions.output);
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    }
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    condition.preserve = typeof comments !== "undefined" ? comments : false;
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    if (typeof extractComments === "boolean" && extractComments) {
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      condition.extract = "some";
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    } else if (typeof extractComments === "string" || extractComments instanceof RegExp) {
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      condition.extract = extractComments;
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    } else if (typeof extractComments === "function") {
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      condition.extract = extractComments;
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    } else if (extractComments && isObject(extractComments)) {
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      condition.extract = typeof extractComments.condition === "boolean" && extractComments.condition ? "some" : typeof extractComments.condition !== "undefined" ? extractComments.condition : "some";
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    } else {
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      // No extract
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      // Preserve using "commentsOpts" or "some"
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      condition.preserve = typeof comments !== "undefined" ? comments : "some";
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      condition.extract = false;
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    }
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    // Ensure that both conditions are functions
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    ["preserve", "extract"].forEach(key => {
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      /** @type {undefined | string} */
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      let regexStr;
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      /** @type {undefined | RegExp} */
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      let regex;
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      switch (typeof condition[key]) {
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        case "boolean":
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          condition[key] = condition[key] ? () => true : () => false;
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          break;
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        case "function":
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          break;
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        case "string":
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          if (condition[key] === "all") {
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            condition[key] = () => true;
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            break;
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          }
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          if (condition[key] === "some") {
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            condition[key] = /** @type {ExtractCommentsFunction} */
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            (astNode, comment) => (comment.type === "comment2" || comment.type === "comment1") && /@preserve|@lic|@cc_on|^\**!/i.test(comment.value);
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            break;
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          }
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          regexStr = /** @type {string} */condition[key];
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          condition[key] = /** @type {ExtractCommentsFunction} */
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          (astNode, comment) => new RegExp( /** @type {string} */regexStr).test(comment.value);
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          break;
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        default:
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          regex = /** @type {RegExp} */condition[key];
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          condition[key] = /** @type {ExtractCommentsFunction} */
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          (astNode, comment) => /** @type {RegExp} */regex.test(comment.value);
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      }
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    });
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    // Redefine the comments function to extract and preserve
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    // comments according to the two conditions
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    return (astNode, comment) => {
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      if ( /** @type {{ extract: ExtractCommentsFunction }} */
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      condition.extract(astNode, comment)) {
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        const commentText = comment.type === "comment2" ? `/*${comment.value}*/` : `//${comment.value}`;
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        // Don't include duplicate comments
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        if (!extractedComments.includes(commentText)) {
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          extractedComments.push(commentText);
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        }
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      }
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      return /** @type {{ preserve: ExtractCommentsFunction }} */condition.preserve(astNode, comment);
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    };
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  };
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  /**
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   * @param {PredefinedOptions<import("terser").MinifyOptions> & import("terser").MinifyOptions} [terserOptions={}]
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   * @returns {import("terser").MinifyOptions & { sourceMap: undefined } & { compress: import("terser").CompressOptions } & ({ output: import("terser").FormatOptions & { beautify: boolean } } | { format: import("terser").FormatOptions & { beautify: boolean } })}
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   */
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  const buildTerserOptions = (terserOptions = {}) => {
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    // Need deep copy objects to avoid https://github.com/terser/terser/issues/366
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    return {
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      ...terserOptions,
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      compress: typeof terserOptions.compress === "boolean" ? terserOptions.compress ? {} : false : {
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        ...terserOptions.compress
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      },
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      // ecma: terserOptions.ecma,
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      // ie8: terserOptions.ie8,
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      // keep_classnames: terserOptions.keep_classnames,
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      // keep_fnames: terserOptions.keep_fnames,
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      mangle: terserOptions.mangle == null ? true : typeof terserOptions.mangle === "boolean" ? terserOptions.mangle : {
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        ...terserOptions.mangle
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      },
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      // module: terserOptions.module,
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      // nameCache: { ...terserOptions.toplevel },
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      // the `output` option is deprecated
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      ...(terserOptions.format ? {
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        format: {
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          beautify: false,
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          ...terserOptions.format
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        }
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      } : {
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        output: {
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          beautify: false,
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          ...terserOptions.output
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        }
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      }),
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      parse: {
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        ...terserOptions.parse
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      },
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      // safari10: terserOptions.safari10,
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      // Ignoring sourceMap from options
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      // eslint-disable-next-line no-undefined
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      sourceMap: undefined
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      // toplevel: terserOptions.toplevel
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    };
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  };
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  // eslint-disable-next-line global-require
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  const {
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    minify
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  } = require("terser");
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  // Copy `terser` options
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  const terserOptions = buildTerserOptions(minimizerOptions);
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  // Let terser generate a SourceMap
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  if (sourceMap) {
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    // @ts-ignore
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    terserOptions.sourceMap = {
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      asObject: true
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    };
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  }
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  /** @type {ExtractedComments} */
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  const extractedComments = [];
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  if (terserOptions.output) {
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    terserOptions.output.comments = buildComments(terserOptions, extractedComments);
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  } else if (terserOptions.format) {
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    terserOptions.format.comments = buildComments(terserOptions, extractedComments);
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  }
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  if (terserOptions.compress) {
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    // More optimizations
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    if (typeof terserOptions.compress.ecma === "undefined") {
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      terserOptions.compress.ecma = terserOptions.ecma;
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    }
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    // https://github.com/webpack/webpack/issues/16135
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    if (terserOptions.ecma === 5 && typeof terserOptions.compress.arrows === "undefined") {
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      terserOptions.compress.arrows = false;
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    }
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  }
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  const [[filename, code]] = Object.entries(input);
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  const result = await minify({
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    [filename]: code
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  }, terserOptions);
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  return {
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    code: ( /** @type {string} **/result.code),
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    // @ts-ignore
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    // eslint-disable-next-line no-undefined
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    map: result.map ? ( /** @type {SourceMapInput} **/result.map) : undefined,
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    extractedComments
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  };
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}
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/**
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 * @returns {string | undefined}
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 */
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terserMinify.getMinimizerVersion = () => {
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  let packageJson;
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  try {
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    // eslint-disable-next-line global-require
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    packageJson = require("terser/package.json");
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  } catch (error) {
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    // Ignore
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  }
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  return packageJson && packageJson.version;
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};
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/**
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 * @returns {boolean | undefined}
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 */
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terserMinify.supportsWorkerThreads = () => true;
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/* istanbul ignore next */
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/**
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 * @param {Input} input
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 * @param {SourceMapInput | undefined} sourceMap
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 * @param {CustomOptions} minimizerOptions
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 * @param {ExtractCommentsOptions | undefined} extractComments
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 * @return {Promise<MinimizedResult>}
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 */
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async function uglifyJsMinify(input, sourceMap, minimizerOptions, extractComments) {
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  /**
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   * @param {any} value
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   * @returns {boolean}
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   */
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  const isObject = value => {
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    const type = typeof value;
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    return value != null && (type === "object" || type === "function");
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  };
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  /**
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   * @param {import("uglify-js").MinifyOptions & { sourceMap: undefined } & { output: import("uglify-js").OutputOptions & { beautify: boolean }}} uglifyJsOptions
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   * @param {ExtractedComments} extractedComments
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   * @returns {ExtractCommentsFunction}
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   */
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  const buildComments = (uglifyJsOptions, extractedComments) => {
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    /** @type {{ [index: string]: ExtractCommentsCondition }} */
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    const condition = {};
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    const {
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      comments
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    } = uglifyJsOptions.output;
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    condition.preserve = typeof comments !== "undefined" ? comments : false;
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    if (typeof extractComments === "boolean" && extractComments) {
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      condition.extract = "some";
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    } else if (typeof extractComments === "string" || extractComments instanceof RegExp) {
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      condition.extract = extractComments;
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    } else if (typeof extractComments === "function") {
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      condition.extract = extractComments;
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    } else if (extractComments && isObject(extractComments)) {
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      condition.extract = typeof extractComments.condition === "boolean" && extractComments.condition ? "some" : typeof extractComments.condition !== "undefined" ? extractComments.condition : "some";
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    } else {
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      // No extract
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      // Preserve using "commentsOpts" or "some"
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      condition.preserve = typeof comments !== "undefined" ? comments : "some";
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      condition.extract = false;
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    }
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    // Ensure that both conditions are functions
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    ["preserve", "extract"].forEach(key => {
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      /** @type {undefined | string} */
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      let regexStr;
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      /** @type {undefined | RegExp} */
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      let regex;
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      switch (typeof condition[key]) {
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        case "boolean":
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          condition[key] = condition[key] ? () => true : () => false;
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          break;
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        case "function":
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          break;
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        case "string":
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          if (condition[key] === "all") {
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            condition[key] = () => true;
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            break;
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          }
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          if (condition[key] === "some") {
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            condition[key] = /** @type {ExtractCommentsFunction} */
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            (astNode, comment) => (comment.type === "comment2" || comment.type === "comment1") && /@preserve|@lic|@cc_on|^\**!/i.test(comment.value);
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            break;
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          }
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          regexStr = /** @type {string} */condition[key];
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          condition[key] = /** @type {ExtractCommentsFunction} */
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          (astNode, comment) => new RegExp( /** @type {string} */regexStr).test(comment.value);
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          break;
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        default:
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          regex = /** @type {RegExp} */condition[key];
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          condition[key] = /** @type {ExtractCommentsFunction} */
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          (astNode, comment) => /** @type {RegExp} */regex.test(comment.value);
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      }
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    });
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    // Redefine the comments function to extract and preserve
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    // comments according to the two conditions
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    return (astNode, comment) => {
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      if ( /** @type {{ extract: ExtractCommentsFunction }} */
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      condition.extract(astNode, comment)) {
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        const commentText = comment.type === "comment2" ? `/*${comment.value}*/` : `//${comment.value}`;
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        // Don't include duplicate comments
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        if (!extractedComments.includes(commentText)) {
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          extractedComments.push(commentText);
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        }
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      }
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      return /** @type {{ preserve: ExtractCommentsFunction }} */condition.preserve(astNode, comment);
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    };
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  };
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  /**
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   * @param {PredefinedOptions<import("uglify-js").MinifyOptions> & import("uglify-js").MinifyOptions} [uglifyJsOptions={}]
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   * @returns {import("uglify-js").MinifyOptions & { sourceMap: undefined } & { output: import("uglify-js").OutputOptions & { beautify: boolean }}}
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   */
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  const buildUglifyJsOptions = (uglifyJsOptions = {}) => {
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    // eslint-disable-next-line no-param-reassign
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    delete minimizerOptions.ecma;
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    // eslint-disable-next-line no-param-reassign
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    delete minimizerOptions.module;
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    // Need deep copy objects to avoid https://github.com/terser/terser/issues/366
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    return {
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      ...uglifyJsOptions,
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      // warnings: uglifyJsOptions.warnings,
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      parse: {
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        ...uglifyJsOptions.parse
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						|
      },
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      compress: typeof uglifyJsOptions.compress === "boolean" ? uglifyJsOptions.compress : {
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        ...uglifyJsOptions.compress
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      },
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      mangle: uglifyJsOptions.mangle == null ? true : typeof uglifyJsOptions.mangle === "boolean" ? uglifyJsOptions.mangle : {
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						|
        ...uglifyJsOptions.mangle
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      },
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						|
      output: {
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        beautify: false,
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						|
        ...uglifyJsOptions.output
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						|
      },
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						|
      // Ignoring sourceMap from options
 | 
						|
      // eslint-disable-next-line no-undefined
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      sourceMap: undefined
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      // toplevel: uglifyJsOptions.toplevel
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      // nameCache: { ...uglifyJsOptions.toplevel },
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      // ie8: uglifyJsOptions.ie8,
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      // keep_fnames: uglifyJsOptions.keep_fnames,
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    };
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  };
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  // eslint-disable-next-line global-require, import/no-extraneous-dependencies
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  const {
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    minify
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  } = require("uglify-js");
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						|
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  // Copy `uglify-js` options
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  const uglifyJsOptions = buildUglifyJsOptions(minimizerOptions);
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  // Let terser generate a SourceMap
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						|
  if (sourceMap) {
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    // @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
 | 
						|
}; |