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WXL

4 天以前 3bd962a6d7f61239c020e2dbbeb7341e5b842dd1

 node_modules/webpack/lib/optimize/MinChunkSizePlugin.js

@@ -6,40 +6,43 @@
"use strict";

const { STAGE_ADVANCED } = require("../OptimizationStages");
const createSchemaValidation = require("../util/create-schema-validation");

/** @typedef {import("../../declarations/plugins/optimize/MinChunkSizePlugin").MinChunkSizePluginOptions} MinChunkSizePluginOptions */
/** @typedef {import("../Chunk")} Chunk */
/** @typedef {import("../Compiler")} Compiler */

const validate = createSchemaValidation(
   require("../../schemas/plugins/optimize/MinChunkSizePlugin.check"),
   () => require("../../schemas/plugins/optimize/MinChunkSizePlugin.json"),
   {
      name: "Min Chunk Size Plugin",
      baseDataPath: "options"
   }
);

const PLUGIN_NAME = "MinChunkSizePlugin";

class MinChunkSizePlugin {
   /**
    * Creates an instance of MinChunkSizePlugin.
    * @param {MinChunkSizePluginOptions} options options object
    */
   constructor(options) {
      validate(options);
      /** @type {MinChunkSizePluginOptions} */
      this.options = options;
   }

   /**
    * Apply the plugin
    * Applies the plugin by registering its hooks on the compiler.
    * @param {Compiler} compiler the compiler instance
    * @returns {void}
    */
   apply(compiler) {
      const options = this.options;
      const minChunkSize = options.minChunkSize;
      compiler.hooks.validate.tap(PLUGIN_NAME, () => {
         compiler.validate(
            () => require("../../schemas/plugins/optimize/MinChunkSizePlugin.json"),
            this.options,
            {
               name: "Min Chunk Size Plugin",
               baseDataPath: "options"
            },
            (options) =>
               require("../../schemas/plugins/optimize/MinChunkSizePlugin.check")(
                  options
               )
         );
      });
      compiler.hooks.compilation.tap(PLUGIN_NAME, (compilation) => {
         compilation.hooks.optimizeChunks.tap(
            {
@@ -53,16 +56,21 @@
                  entryChunkMultiplicator: 1
               };

               /** @type {Map<Chunk, number>} */
               const chunkSizesMap = new Map();
               /** @type {[Chunk, Chunk][]} */
               const combinations = [];
               /** @type {Chunk[]} */
               const smallChunks = [];
               /** @type {Chunk[]} */
               const visitedChunks = [];
               for (const a of chunks) {
                  // check if one of the chunks sizes is smaller than the minChunkSize
                  // and filter pairs that can NOT be integrated!
                  if (chunkGraph.getChunkSize(a, equalOptions) < minChunkSize) {
                  if (
                     chunkGraph.getChunkSize(a, equalOptions) <
                     this.options.minChunkSize
                  ) {
                     smallChunks.push(a);
                     for (const b of visitedChunks) {
                        if (chunkGraph.canChunksBeIntegrated(b, a)) {
@@ -76,19 +84,19 @@
                        }
                     }
                  }
                  chunkSizesMap.set(a, chunkGraph.getChunkSize(a, options));
                  chunkSizesMap.set(a, chunkGraph.getChunkSize(a, this.options));
                  visitedChunks.push(a);
               }

               const sortedSizeFilteredExtendedPairCombinations = combinations
                  .map((pair) => {
                     // extend combination pairs with size and integrated size
                     const a = chunkSizesMap.get(pair[0]);
                     const b = chunkSizesMap.get(pair[1]);
                     const a = /** @type {number} */ (chunkSizesMap.get(pair[0]));
                     const b = /** @type {number} */ (chunkSizesMap.get(pair[1]));
                     const ab = chunkGraph.getIntegratedChunksSize(
                        pair[0],
                        pair[1],
                        options
                        this.options
                     );
                     /** @type {[number, number, Chunk, Chunk]} */
                     const extendedPair = [a + b - ab, ab, pair[0], pair[1]];