1 | /*
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2 | MIT License http://www.opensource.org/licenses/mit-license.php
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3 | Author Tobias Koppers @sokra
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4 | */
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5 |
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6 | ;
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7 |
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8 | const { ConcatSource } = require("webpack-sources");
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9 | const Template = require("../Template");
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10 | const propertyAccess = require("../util/propertyAccess");
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11 | const AbstractLibraryPlugin = require("./AbstractLibraryPlugin");
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12 |
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13 | /** @typedef {import("webpack-sources").Source} Source */
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14 | /** @typedef {import("../../declarations/WebpackOptions").LibraryOptions} LibraryOptions */
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15 | /** @typedef {import("../../declarations/WebpackOptions").LibraryType} LibraryType */
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16 | /** @typedef {import("../Chunk")} Chunk */
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17 | /** @typedef {import("../Compilation").ChunkHashContext} ChunkHashContext */
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18 | /** @typedef {import("../Compiler")} Compiler */
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19 | /** @typedef {import("../Module")} Module */
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20 | /** @typedef {import("../javascript/JavascriptModulesPlugin").StartupRenderContext} StartupRenderContext */
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21 | /** @typedef {import("../util/Hash")} Hash */
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22 | /** @template T @typedef {import("./AbstractLibraryPlugin").LibraryContext<T>} LibraryContext<T> */
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23 |
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24 | /**
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25 | * @typedef {Object} ModuleLibraryPluginOptions
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26 | * @property {LibraryType} type
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27 | */
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28 |
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29 | /**
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30 | * @typedef {Object} ModuleLibraryPluginParsed
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31 | * @property {string} name
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32 | */
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33 |
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34 | /**
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35 | * @typedef {ModuleLibraryPluginParsed} T
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36 | * @extends {AbstractLibraryPlugin<ModuleLibraryPluginParsed>}
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37 | */
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38 | class ModuleLibraryPlugin extends AbstractLibraryPlugin {
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39 | /**
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40 | * @param {ModuleLibraryPluginOptions} options the plugin options
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41 | */
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42 | constructor(options) {
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43 | super({
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44 | pluginName: "ModuleLibraryPlugin",
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45 | type: options.type
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46 | });
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47 | }
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48 |
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49 | /**
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50 | * @param {LibraryOptions} library normalized library option
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51 | * @returns {T | false} preprocess as needed by overriding
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52 | */
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53 | parseOptions(library) {
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54 | const { name } = library;
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55 | if (name) {
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56 | throw new Error(
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57 | `Library name must be unset. ${AbstractLibraryPlugin.COMMON_LIBRARY_NAME_MESSAGE}`
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58 | );
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59 | }
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60 | return {
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61 | name: /** @type {string} */ (name)
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62 | };
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63 | }
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64 |
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65 | /**
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66 | * @param {Source} source source
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67 | * @param {Module} module module
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68 | * @param {StartupRenderContext} renderContext render context
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69 | * @param {LibraryContext<T>} libraryContext context
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70 | * @returns {Source} source with library export
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71 | */
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72 | renderStartup(
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73 | source,
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74 | module,
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75 | { moduleGraph, chunk },
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76 | { options, compilation }
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77 | ) {
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78 | const result = new ConcatSource(source);
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79 | const exportsInfo = moduleGraph.getExportsInfo(module);
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80 | const exports = [];
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81 | const isAsync = moduleGraph.isAsync(module);
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82 | if (isAsync) {
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83 | result.add(`__webpack_exports__ = await __webpack_exports__;\n`);
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84 | }
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85 | for (const exportInfo of exportsInfo.orderedExports) {
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86 | if (!exportInfo.provided) continue;
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87 | const varName = `__webpack_exports__${Template.toIdentifier(
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88 | exportInfo.name
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89 | )}`;
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90 | result.add(
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91 | `var ${varName} = __webpack_exports__${propertyAccess([
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92 | exportInfo.getUsedName(exportInfo.name, chunk.runtime)
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93 | ])};\n`
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94 | );
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95 | exports.push(`${varName} as ${exportInfo.name}`);
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96 | }
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97 | if (exports.length > 0) {
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98 | result.add(`export { ${exports.join(", ")} };\n`);
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99 | }
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100 | return result;
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101 | }
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102 | }
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103 |
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104 | module.exports = ModuleLibraryPlugin;
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