马宇豪
2024-07-16 f591c27b57e2418c9495bc02ae8cfff84d35bc18
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/*
    MIT License http://www.opensource.org/licenses/mit-license.php
*/
 
"use strict";
 
const RuntimeGlobals = require("../RuntimeGlobals");
const StartupChunkDependenciesRuntimeModule = require("./StartupChunkDependenciesRuntimeModule");
const StartupEntrypointRuntimeModule = require("./StartupEntrypointRuntimeModule");
 
/** @typedef {import("../../declarations/WebpackOptions").ChunkLoadingType} ChunkLoadingType */
/** @typedef {import("../Chunk")} Chunk */
/** @typedef {import("../Compiler")} Compiler */
 
/**
 * @typedef {Object} Options
 * @property {ChunkLoadingType} chunkLoading
 * @property {boolean=} asyncChunkLoading
 */
 
class StartupChunkDependenciesPlugin {
    /**
     * @param {Options} options options
     */
    constructor(options) {
        this.chunkLoading = options.chunkLoading;
        this.asyncChunkLoading =
            typeof options.asyncChunkLoading === "boolean"
                ? options.asyncChunkLoading
                : true;
    }
 
    /**
     * Apply the plugin
     * @param {Compiler} compiler the compiler instance
     * @returns {void}
     */
    apply(compiler) {
        compiler.hooks.thisCompilation.tap(
            "StartupChunkDependenciesPlugin",
            compilation => {
                const globalChunkLoading = compilation.outputOptions.chunkLoading;
                /**
                 * @param {Chunk} chunk chunk to check
                 * @returns {boolean} true, when the plugin is enabled for the chunk
                 */
                const isEnabledForChunk = chunk => {
                    const options = chunk.getEntryOptions();
                    const chunkLoading =
                        options && options.chunkLoading !== undefined
                            ? options.chunkLoading
                            : globalChunkLoading;
                    return chunkLoading === this.chunkLoading;
                };
                compilation.hooks.additionalTreeRuntimeRequirements.tap(
                    "StartupChunkDependenciesPlugin",
                    (chunk, set, { chunkGraph }) => {
                        if (!isEnabledForChunk(chunk)) return;
                        if (chunkGraph.hasChunkEntryDependentChunks(chunk)) {
                            set.add(RuntimeGlobals.startup);
                            set.add(RuntimeGlobals.ensureChunk);
                            set.add(RuntimeGlobals.ensureChunkIncludeEntries);
                            compilation.addRuntimeModule(
                                chunk,
                                new StartupChunkDependenciesRuntimeModule(
                                    this.asyncChunkLoading
                                )
                            );
                        }
                    }
                );
                compilation.hooks.runtimeRequirementInTree
                    .for(RuntimeGlobals.startupEntrypoint)
                    .tap("StartupChunkDependenciesPlugin", (chunk, set) => {
                        if (!isEnabledForChunk(chunk)) return;
                        set.add(RuntimeGlobals.require);
                        set.add(RuntimeGlobals.ensureChunk);
                        set.add(RuntimeGlobals.ensureChunkIncludeEntries);
                        compilation.addRuntimeModule(
                            chunk,
                            new StartupEntrypointRuntimeModule(this.asyncChunkLoading)
                        );
                    });
            }
        );
    }
}
 
module.exports = StartupChunkDependenciesPlugin;