93 lines
2.5 KiB
JavaScript
93 lines
2.5 KiB
JavaScript
/*
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MIT License http://www.opensource.org/licenses/mit-license.php
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Author Tobias Koppers @sokra
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*/
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"use strict";
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const { find } = require("../util/SetHelpers");
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const {
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compareModulesByPostOrderIndexOrIdentifier,
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compareModulesByPreOrderIndexOrIdentifier
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} = require("../util/comparators");
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/** @typedef {import("../Compiler")} Compiler */
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/** @typedef {import("../Module")} Module */
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/**
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* @typedef {object} ChunkModuleIdRangePluginOptions
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* @property {string} name the chunk name
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* @property {("index" | "index2" | "preOrderIndex" | "postOrderIndex")=} order order
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* @property {number=} start start id
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* @property {number=} end end id
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*/
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const PLUGIN_NAME = "ChunkModuleIdRangePlugin";
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class ChunkModuleIdRangePlugin {
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/**
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* @param {ChunkModuleIdRangePluginOptions} options options object
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*/
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constructor(options) {
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this.options = options;
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}
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/**
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* Apply the plugin
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* @param {Compiler} compiler the compiler instance
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* @returns {void}
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*/
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apply(compiler) {
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const options = this.options;
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compiler.hooks.compilation.tap(PLUGIN_NAME, (compilation) => {
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const moduleGraph = compilation.moduleGraph;
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compilation.hooks.moduleIds.tap(PLUGIN_NAME, (modules) => {
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const chunkGraph = compilation.chunkGraph;
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const chunk = find(
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compilation.chunks,
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(chunk) => chunk.name === options.name
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);
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if (!chunk) {
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throw new Error(
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`${PLUGIN_NAME}: Chunk with name '${options.name}"' was not found`
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);
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}
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/** @type {Module[]} */
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let chunkModules;
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if (options.order) {
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let cmpFn;
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switch (options.order) {
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case "index":
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case "preOrderIndex":
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cmpFn = compareModulesByPreOrderIndexOrIdentifier(moduleGraph);
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break;
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case "index2":
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case "postOrderIndex":
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cmpFn = compareModulesByPostOrderIndexOrIdentifier(moduleGraph);
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break;
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default:
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throw new Error(`${PLUGIN_NAME}: unexpected value of order`);
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}
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chunkModules = chunkGraph.getOrderedChunkModules(chunk, cmpFn);
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} else {
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chunkModules = [...modules]
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.filter((m) => chunkGraph.isModuleInChunk(m, chunk))
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.sort(compareModulesByPreOrderIndexOrIdentifier(moduleGraph));
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}
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let currentId = options.start || 0;
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for (let i = 0; i < chunkModules.length; i++) {
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const m = chunkModules[i];
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if (m.needId && chunkGraph.getModuleId(m) === null) {
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chunkGraph.setModuleId(m, currentId++);
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}
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if (options.end && currentId > options.end) break;
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}
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});
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});
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}
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}
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module.exports = ChunkModuleIdRangePlugin;
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