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 } = require("./util/runtime");
 
/** @typedef {import("./Compiler")} Compiler */
 
const PLUGIN_NAME = "FlagEntryExportAsUsedPlugin";
 
class FlagEntryExportAsUsedPlugin {
    constructor(nsObjectUsed, explanation) {
        this.nsObjectUsed = nsObjectUsed;
        this.explanation = explanation;
    }
 
    /**
     * Apply the plugin
     * @param {Compiler} compiler the compiler instance
     * @returns {void}
     */
    apply(compiler) {
        compiler.hooks.thisCompilation.tap(PLUGIN_NAME, compilation => {
            const moduleGraph = compilation.moduleGraph;
            compilation.hooks.seal.tap(PLUGIN_NAME, () => {
                for (const [
                    entryName,
                    { dependencies: deps, options }
                ] of compilation.entries) {
                    const runtime = getEntryRuntime(compilation, entryName, options);
                    for (const dep of deps) {
                        const module = moduleGraph.getModule(dep);
                        if (module) {
                            const exportsInfo = moduleGraph.getExportsInfo(module);
                            if (this.nsObjectUsed) {
                                exportsInfo.setUsedInUnknownWay(runtime);
                            } else {
                                exportsInfo.setAllKnownExportsUsed(runtime);
                            }
                            moduleGraph.addExtraReason(module, this.explanation);
                        }
                    }
                }
            });
        });
    }
}
 
module.exports = FlagEntryExportAsUsedPlugin;