mirror of https://github.com/webpack/webpack.git
114 lines
3.5 KiB
JavaScript
114 lines
3.5 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 { ConcatSource } = require("webpack-sources");
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const { UsageState } = require("../ExportsInfo");
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const propertyAccess = require("../util/propertyAccess");
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const { getEntryRuntime } = require("../util/runtime");
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const AbstractLibraryPlugin = require("./AbstractLibraryPlugin");
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/** @typedef {import("webpack-sources").Source} Source */
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/** @typedef {import("../../declarations/WebpackOptions").LibraryOptions} LibraryOptions */
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/** @typedef {import("../../declarations/WebpackOptions").LibraryType} LibraryType */
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/** @typedef {import("../Chunk")} Chunk */
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/** @typedef {import("../Compiler")} Compiler */
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/** @typedef {import("../Module")} Module */
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/** @typedef {import("../javascript/JavascriptModulesPlugin").StartupRenderContext} StartupRenderContext */
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/** @template T @typedef {import("./AbstractLibraryPlugin").LibraryContext<T>} LibraryContext<T> */
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/**
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* @typedef {Object} ExportPropertyLibraryPluginParsed
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* @property {string | string[]} export
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*/
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/**
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* @typedef {Object} ExportPropertyLibraryPluginOptions
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* @property {LibraryType} type
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* @property {boolean} nsObjectUsed the namespace object is used
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*/
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/**
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* @typedef {ExportPropertyLibraryPluginParsed} T
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* @extends {AbstractLibraryPlugin<ExportPropertyLibraryPluginParsed>}
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*/
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class ExportPropertyLibraryPlugin extends AbstractLibraryPlugin {
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/**
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* @param {ExportPropertyLibraryPluginOptions} options options
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*/
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constructor({ type, nsObjectUsed }) {
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super({
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pluginName: "ExportPropertyLibraryPlugin",
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type
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});
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this.nsObjectUsed = nsObjectUsed;
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}
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/**
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* @param {LibraryOptions} library normalized library option
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* @returns {T | false} preprocess as needed by overriding
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*/
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parseOptions(library) {
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return {
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export: library.export
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};
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}
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/**
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* @param {Module} module the exporting entry module
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* @param {string} entryName the name of the entrypoint
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* @param {LibraryContext<T>} libraryContext context
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* @returns {void}
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*/
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finishEntryModule(
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module,
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entryName,
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{ options, compilation, compilation: { moduleGraph } }
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) {
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const runtime = getEntryRuntime(compilation, entryName);
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if (options.export) {
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const exportsInfo = moduleGraph.getExportInfo(
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module,
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Array.isArray(options.export) ? options.export[0] : options.export
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);
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exportsInfo.setUsed(UsageState.Used, runtime);
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exportsInfo.canMangleUse = false;
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} else {
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const exportsInfo = moduleGraph.getExportsInfo(module);
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if (this.nsObjectUsed) {
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exportsInfo.setUsedInUnknownWay(runtime);
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} else {
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exportsInfo.setAllKnownExportsUsed(runtime);
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}
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}
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moduleGraph.addExtraReason(module, "used as library export");
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}
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/**
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* @param {Chunk} chunk the chunk
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* @param {Set<string>} set runtime requirements
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* @param {LibraryContext<T>} libraryContext context
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* @returns {void}
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*/
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runtimeRequirements(chunk, set, libraryContext) {}
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/**
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* @param {Source} source source
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* @param {Module} module module
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* @param {StartupRenderContext} renderContext render context
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* @param {LibraryContext<T>} libraryContext context
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* @returns {Source} source with library export
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*/
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renderStartup(source, module, renderContext, { options }) {
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if (!options.export) return source;
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const postfix = `__webpack_exports__ = __webpack_exports__${propertyAccess(
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Array.isArray(options.export) ? options.export : [options.export]
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)};\n`;
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return new ConcatSource(source, postfix);
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}
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}
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module.exports = ExportPropertyLibraryPlugin;
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