init

马宇豪

2024-07-16 f591c27b57e2418c9495bc02ae8cfff84d35bc18

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/*
    MIT License http://www.opensource.org/licenses/mit-license.php
    Author Tobias Koppers @sokra
*/
 
"use strict";
 
const { getEntryRuntime, mergeRuntimeOwned } = require("./util/runtime");
 
/** @typedef {import("./Compiler")} Compiler */
/** @typedef {import("./util/runtime").RuntimeSpec} RuntimeSpec */
 
const PLUGIN_NAME = "FlagAllModulesAsUsedPlugin";
class FlagAllModulesAsUsedPlugin {
    constructor(explanation) {
        this.explanation = explanation;
    }
 
    /**
     * Apply the plugin
     * @param {Compiler} compiler the compiler instance
     * @returns {void}
     */
    apply(compiler) {
        compiler.hooks.compilation.tap(PLUGIN_NAME, compilation => {
            const moduleGraph = compilation.moduleGraph;
            compilation.hooks.optimizeDependencies.tap(PLUGIN_NAME, modules => {
                /** @type {RuntimeSpec} */
                let runtime = undefined;
                for (const [name, { options }] of compilation.entries) {
                    runtime = mergeRuntimeOwned(
                        runtime,
                        getEntryRuntime(compilation, name, options)
                    );
                }
                for (const module of modules) {
                    const exportsInfo = moduleGraph.getExportsInfo(module);
                    exportsInfo.setUsedInUnknownWay(runtime);
                    moduleGraph.addExtraReason(module, this.explanation);
                    if (module.factoryMeta === undefined) {
                        module.factoryMeta = {};
                    }
                    module.factoryMeta.sideEffectFree = false;
                }
            });
        });
    }
}
 
module.exports = FlagAllModulesAsUsedPlugin;