CssModulesPlugin.js 27 KB

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  1. /*
  2. MIT License http://www.opensource.org/licenses/mit-license.php
  3. Author Tobias Koppers @sokra
  4. */
  5. "use strict";
  6. const { SyncHook, SyncWaterfallHook } = require("tapable");
  7. const {
  8. CachedSource,
  9. ConcatSource,
  10. PrefixSource,
  11. RawSource,
  12. ReplaceSource
  13. } = require("webpack-sources");
  14. const Compilation = require("../Compilation");
  15. const CssModule = require("../CssModule");
  16. const { tryRunOrWebpackError } = require("../HookWebpackError");
  17. const HotUpdateChunk = require("../HotUpdateChunk");
  18. const { CSS_IMPORT_TYPE, CSS_TYPE } = require("../ModuleSourceTypeConstants");
  19. const {
  20. CSS_MODULE_TYPE,
  21. CSS_MODULE_TYPE_AUTO,
  22. CSS_MODULE_TYPE_GLOBAL,
  23. CSS_MODULE_TYPE_MODULE
  24. } = require("../ModuleTypeConstants");
  25. const NormalModule = require("../NormalModule");
  26. const RuntimeGlobals = require("../RuntimeGlobals");
  27. const Template = require("../Template");
  28. const WebpackError = require("../WebpackError");
  29. const CssIcssExportDependency = require("../dependencies/CssIcssExportDependency");
  30. const CssIcssImportDependency = require("../dependencies/CssIcssImportDependency");
  31. const CssIcssSymbolDependency = require("../dependencies/CssIcssSymbolDependency");
  32. const CssImportDependency = require("../dependencies/CssImportDependency");
  33. const CssUrlDependency = require("../dependencies/CssUrlDependency");
  34. const StaticExportsDependency = require("../dependencies/StaticExportsDependency");
  35. const JavascriptModulesPlugin = require("../javascript/JavascriptModulesPlugin");
  36. const { compareModulesByFullName } = require("../util/comparators");
  37. const createSchemaValidation = require("../util/create-schema-validation");
  38. const createHash = require("../util/createHash");
  39. const { getUndoPath } = require("../util/identifier");
  40. const memoize = require("../util/memoize");
  41. const nonNumericOnlyHash = require("../util/nonNumericOnlyHash");
  42. const removeBOM = require("../util/removeBOM");
  43. const CssGenerator = require("./CssGenerator");
  44. const CssMergeStyleSheetsRuntimeModule = require("./CssMergeStyleSheetsRuntimeModule");
  45. const CssParser = require("./CssParser");
  46. /** @typedef {import("webpack-sources").Source} Source */
  47. /** @typedef {import("../config/defaults").OutputNormalizedWithDefaults} OutputOptions */
  48. /** @typedef {import("../Chunk")} Chunk */
  49. /** @typedef {import("../ChunkGraph")} ChunkGraph */
  50. /** @typedef {import("../CodeGenerationResults")} CodeGenerationResults */
  51. /** @typedef {import("../Compilation").ChunkHashContext} ChunkHashContext */
  52. /** @typedef {import("../Compiler")} Compiler */
  53. /** @typedef {import("../CssModule").Inheritance} Inheritance */
  54. /** @typedef {import("../CssModule").CSSModuleCreateData} CSSModuleCreateData */
  55. /** @typedef {import("../Module")} Module */
  56. /** @typedef {import("../Module").BuildInfo} BuildInfo */
  57. /** @typedef {import("../Module").RuntimeRequirements} RuntimeRequirements */
  58. /** @typedef {import("../Template").RuntimeTemplate} RuntimeTemplate */
  59. /** @typedef {import("../TemplatedPathPlugin").TemplatePath} TemplatePath */
  60. /** @typedef {import("../util/Hash")} Hash */
  61. /** @typedef {import("../Module").BuildMeta} BuildMeta */
  62. /**
  63. * @typedef {object} RenderContext
  64. * @property {Chunk} chunk the chunk
  65. * @property {ChunkGraph} chunkGraph the chunk graph
  66. * @property {CodeGenerationResults} codeGenerationResults results of code generation
  67. * @property {RuntimeTemplate} runtimeTemplate the runtime template
  68. * @property {string} uniqueName the unique name
  69. * @property {string} undoPath undo path to css file
  70. * @property {CssModule[]} modules modules
  71. */
  72. /**
  73. * @typedef {object} ChunkRenderContext
  74. * @property {Chunk=} chunk the chunk
  75. * @property {ChunkGraph=} chunkGraph the chunk graph
  76. * @property {CodeGenerationResults=} codeGenerationResults results of code generation
  77. * @property {RuntimeTemplate} runtimeTemplate the runtime template
  78. * @property {string} undoPath undo path to css file
  79. * @property {WeakMap<Source, ModuleFactoryCacheEntry>} moduleFactoryCache moduleFactoryCache
  80. * @property {Source} moduleSourceContent content
  81. */
  82. /**
  83. * @typedef {object} CompilationHooks
  84. * @property {SyncWaterfallHook<[Source, Module, ChunkRenderContext]>} renderModulePackage
  85. * @property {SyncHook<[Chunk, Hash, ChunkHashContext]>} chunkHash
  86. */
  87. /**
  88. * @typedef {object} ModuleFactoryCacheEntry
  89. * @property {string} undoPath - The undo path to the CSS file
  90. * @property {Inheritance} inheritance - The inheritance chain
  91. * @property {CachedSource} source - The cached source
  92. */
  93. const getCssLoadingRuntimeModule = memoize(() =>
  94. require("./CssLoadingRuntimeModule")
  95. );
  96. /**
  97. * @param {string} name name
  98. * @returns {{ oneOf: [{ $ref: string }], definitions: import("../../schemas/WebpackOptions.json")["definitions"] }} schema
  99. */
  100. const getSchema = (name) => {
  101. const { definitions } = require("../../schemas/WebpackOptions.json");
  102. return {
  103. definitions,
  104. oneOf: [{ $ref: `#/definitions/${name}` }]
  105. };
  106. };
  107. const generatorValidationOptions = {
  108. name: "Css Modules Plugin",
  109. baseDataPath: "generator"
  110. };
  111. const validateGeneratorOptions = {
  112. css: createSchemaValidation(
  113. require("../../schemas/plugins/css/CssGeneratorOptions.check"),
  114. () => getSchema("CssGeneratorOptions"),
  115. generatorValidationOptions
  116. ),
  117. "css/auto": createSchemaValidation(
  118. require("../../schemas/plugins/css/CssModuleGeneratorOptions.check"),
  119. () => getSchema("CssModuleGeneratorOptions"),
  120. generatorValidationOptions
  121. ),
  122. "css/module": createSchemaValidation(
  123. require("../../schemas/plugins/css/CssModuleGeneratorOptions.check"),
  124. () => getSchema("CssModuleGeneratorOptions"),
  125. generatorValidationOptions
  126. ),
  127. "css/global": createSchemaValidation(
  128. require("../../schemas/plugins/css/CssModuleGeneratorOptions.check"),
  129. () => getSchema("CssModuleGeneratorOptions"),
  130. generatorValidationOptions
  131. )
  132. };
  133. const parserValidationOptions = {
  134. name: "Css Modules Plugin",
  135. baseDataPath: "parser"
  136. };
  137. const validateParserOptions = {
  138. css: createSchemaValidation(
  139. require("../../schemas/plugins/css/CssParserOptions.check"),
  140. () => getSchema("CssParserOptions"),
  141. parserValidationOptions
  142. ),
  143. "css/auto": createSchemaValidation(
  144. require("../../schemas/plugins/css/CssModuleParserOptions.check"),
  145. () => getSchema("CssModuleParserOptions"),
  146. parserValidationOptions
  147. ),
  148. "css/module": createSchemaValidation(
  149. require("../../schemas/plugins/css/CssModuleParserOptions.check"),
  150. () => getSchema("CssModuleParserOptions"),
  151. parserValidationOptions
  152. ),
  153. "css/global": createSchemaValidation(
  154. require("../../schemas/plugins/css/CssModuleParserOptions.check"),
  155. () => getSchema("CssModuleParserOptions"),
  156. parserValidationOptions
  157. )
  158. };
  159. /** @type {WeakMap<Compilation, CompilationHooks>} */
  160. const compilationHooksMap = new WeakMap();
  161. const PLUGIN_NAME = "CssModulesPlugin";
  162. class CssModulesPlugin {
  163. /**
  164. * @param {Compilation} compilation the compilation
  165. * @returns {CompilationHooks} the attached hooks
  166. */
  167. static getCompilationHooks(compilation) {
  168. if (!(compilation instanceof Compilation)) {
  169. throw new TypeError(
  170. "The 'compilation' argument must be an instance of Compilation"
  171. );
  172. }
  173. let hooks = compilationHooksMap.get(compilation);
  174. if (hooks === undefined) {
  175. hooks = {
  176. renderModulePackage: new SyncWaterfallHook([
  177. "source",
  178. "module",
  179. "renderContext"
  180. ]),
  181. chunkHash: new SyncHook(["chunk", "hash", "context"])
  182. };
  183. compilationHooksMap.set(compilation, hooks);
  184. }
  185. return hooks;
  186. }
  187. constructor() {
  188. /** @type {WeakMap<Source, ModuleFactoryCacheEntry>} */
  189. this._moduleFactoryCache = new WeakMap();
  190. }
  191. /**
  192. * Apply the plugin
  193. * @param {Compiler} compiler the compiler instance
  194. * @returns {void}
  195. */
  196. apply(compiler) {
  197. compiler.hooks.compilation.tap(
  198. PLUGIN_NAME,
  199. (compilation, { normalModuleFactory }) => {
  200. const hooks = CssModulesPlugin.getCompilationHooks(compilation);
  201. compilation.dependencyFactories.set(
  202. CssImportDependency,
  203. normalModuleFactory
  204. );
  205. compilation.dependencyTemplates.set(
  206. CssImportDependency,
  207. new CssImportDependency.Template()
  208. );
  209. compilation.dependencyFactories.set(
  210. CssUrlDependency,
  211. normalModuleFactory
  212. );
  213. compilation.dependencyTemplates.set(
  214. CssUrlDependency,
  215. new CssUrlDependency.Template()
  216. );
  217. compilation.dependencyFactories.set(
  218. CssIcssImportDependency,
  219. normalModuleFactory
  220. );
  221. compilation.dependencyTemplates.set(
  222. CssIcssImportDependency,
  223. new CssIcssImportDependency.Template()
  224. );
  225. compilation.dependencyTemplates.set(
  226. CssIcssExportDependency,
  227. new CssIcssExportDependency.Template()
  228. );
  229. compilation.dependencyTemplates.set(
  230. CssIcssSymbolDependency,
  231. new CssIcssSymbolDependency.Template()
  232. );
  233. compilation.dependencyTemplates.set(
  234. StaticExportsDependency,
  235. new StaticExportsDependency.Template()
  236. );
  237. for (const type of [
  238. CSS_MODULE_TYPE,
  239. CSS_MODULE_TYPE_GLOBAL,
  240. CSS_MODULE_TYPE_MODULE,
  241. CSS_MODULE_TYPE_AUTO
  242. ]) {
  243. normalModuleFactory.hooks.createParser
  244. .for(type)
  245. .tap(PLUGIN_NAME, (parserOptions) => {
  246. switch (type) {
  247. case CSS_MODULE_TYPE:
  248. validateParserOptions[type](parserOptions);
  249. return new CssParser(parserOptions);
  250. case CSS_MODULE_TYPE_GLOBAL:
  251. validateParserOptions[type](parserOptions);
  252. return new CssParser({
  253. defaultMode: "global",
  254. ...parserOptions
  255. });
  256. case CSS_MODULE_TYPE_MODULE:
  257. validateParserOptions[type](parserOptions);
  258. return new CssParser({
  259. defaultMode: "local",
  260. ...parserOptions
  261. });
  262. case CSS_MODULE_TYPE_AUTO:
  263. validateParserOptions[type](parserOptions);
  264. return new CssParser({
  265. defaultMode: "auto",
  266. ...parserOptions
  267. });
  268. }
  269. });
  270. normalModuleFactory.hooks.createGenerator
  271. .for(type)
  272. .tap(PLUGIN_NAME, (generatorOptions) => {
  273. validateGeneratorOptions[type](generatorOptions);
  274. return new CssGenerator(
  275. generatorOptions,
  276. compilation.moduleGraph
  277. );
  278. });
  279. normalModuleFactory.hooks.createModuleClass
  280. .for(type)
  281. .tap(PLUGIN_NAME, (createData, resolveData) => {
  282. if (resolveData.dependencies.length > 0) {
  283. // When CSS is imported from CSS there is only one dependency
  284. const dependency = resolveData.dependencies[0];
  285. if (dependency instanceof CssImportDependency) {
  286. const parent =
  287. /** @type {CssModule} */
  288. (compilation.moduleGraph.getParentModule(dependency));
  289. if (parent instanceof CssModule) {
  290. /** @type {Inheritance | undefined} */
  291. let inheritance;
  292. if (
  293. parent.cssLayer !== undefined ||
  294. parent.supports ||
  295. parent.media
  296. ) {
  297. if (!inheritance) {
  298. inheritance = [];
  299. }
  300. inheritance.push([
  301. parent.cssLayer,
  302. parent.supports,
  303. parent.media
  304. ]);
  305. }
  306. if (parent.inheritance) {
  307. if (!inheritance) {
  308. inheritance = [];
  309. }
  310. inheritance.push(...parent.inheritance);
  311. }
  312. return new CssModule(
  313. /** @type {CSSModuleCreateData} */
  314. ({
  315. ...createData,
  316. cssLayer: dependency.layer,
  317. supports: dependency.supports,
  318. media: dependency.media,
  319. inheritance
  320. })
  321. );
  322. }
  323. return new CssModule(
  324. /** @type {CSSModuleCreateData} */
  325. ({
  326. ...createData,
  327. cssLayer: dependency.layer,
  328. supports: dependency.supports,
  329. media: dependency.media
  330. })
  331. );
  332. }
  333. }
  334. return new CssModule(
  335. /** @type {CSSModuleCreateData} */
  336. (createData)
  337. );
  338. });
  339. NormalModule.getCompilationHooks(compilation).processResult.tap(
  340. PLUGIN_NAME,
  341. (result, module) => {
  342. if (module.type === type) {
  343. const [source, ...rest] = result;
  344. return [removeBOM(source), ...rest];
  345. }
  346. return result;
  347. }
  348. );
  349. }
  350. JavascriptModulesPlugin.getCompilationHooks(
  351. compilation
  352. ).renderModuleContent.tap(PLUGIN_NAME, (source, module) => {
  353. if (module instanceof CssModule && module.hot) {
  354. const exportType = /** @type {BuildMeta} */ (module.buildMeta)
  355. .exportType;
  356. // When exportType !== "link", modules behave like JavaScript modules
  357. if (exportType && exportType !== "link") {
  358. return source;
  359. }
  360. // For exportType === "link", we can optimize with self-acceptance
  361. const cssData = /** @type {BuildInfo} */ (module.buildInfo).cssData;
  362. if (!cssData) {
  363. return source;
  364. }
  365. const exports = cssData.exports;
  366. const stringifiedExports = JSON.stringify(
  367. JSON.stringify(
  368. [...exports].reduce((obj, [key, value]) => {
  369. obj[key] = value;
  370. return obj;
  371. }, /** @type {Record<string, string>} */ ({}))
  372. )
  373. );
  374. const hmrCode = Template.asString([
  375. "",
  376. `var __webpack_css_exports__ = ${stringifiedExports};`,
  377. "// only invalidate when locals change",
  378. "if (module.hot.data && module.hot.data.__webpack_css_exports__ && module.hot.data.__webpack_css_exports__ != __webpack_css_exports__) {",
  379. Template.indent("module.hot.invalidate();"),
  380. "} else {",
  381. Template.indent("module.hot.accept();"),
  382. "}",
  383. "module.hot.dispose(function(data) { data.__webpack_css_exports__ = __webpack_css_exports__; });"
  384. ]);
  385. return new ConcatSource(source, "\n", new RawSource(hmrCode));
  386. }
  387. return source;
  388. });
  389. /** @type {WeakMap<Chunk, CssModule[]>} */
  390. const orderedCssModulesPerChunk = new WeakMap();
  391. compilation.hooks.afterCodeGeneration.tap(PLUGIN_NAME, () => {
  392. const { chunkGraph } = compilation;
  393. for (const chunk of compilation.chunks) {
  394. if (CssModulesPlugin.chunkHasCss(chunk, chunkGraph)) {
  395. orderedCssModulesPerChunk.set(
  396. chunk,
  397. this.getOrderedChunkCssModules(chunk, chunkGraph, compilation)
  398. );
  399. }
  400. }
  401. });
  402. compilation.hooks.chunkHash.tap(PLUGIN_NAME, (chunk, hash, context) => {
  403. hooks.chunkHash.call(chunk, hash, context);
  404. });
  405. compilation.hooks.contentHash.tap(PLUGIN_NAME, (chunk) => {
  406. const {
  407. chunkGraph,
  408. moduleGraph,
  409. runtimeTemplate,
  410. outputOptions: {
  411. hashSalt,
  412. hashDigest,
  413. hashDigestLength,
  414. hashFunction
  415. }
  416. } = compilation;
  417. const hash = createHash(hashFunction);
  418. if (hashSalt) hash.update(hashSalt);
  419. const codeGenerationResults =
  420. /** @type {CodeGenerationResults} */
  421. (compilation.codeGenerationResults);
  422. hooks.chunkHash.call(chunk, hash, {
  423. chunkGraph,
  424. codeGenerationResults,
  425. moduleGraph,
  426. runtimeTemplate
  427. });
  428. const modules = orderedCssModulesPerChunk.get(chunk);
  429. if (modules) {
  430. for (const module of modules) {
  431. hash.update(chunkGraph.getModuleHash(module, chunk.runtime));
  432. }
  433. }
  434. const digest = hash.digest(hashDigest);
  435. chunk.contentHash.css = nonNumericOnlyHash(digest, hashDigestLength);
  436. });
  437. compilation.hooks.renderManifest.tap(PLUGIN_NAME, (result, options) => {
  438. const { chunkGraph } = compilation;
  439. const { hash, chunk, codeGenerationResults, runtimeTemplate } =
  440. options;
  441. if (chunk instanceof HotUpdateChunk) return result;
  442. /** @type {CssModule[] | undefined} */
  443. const modules = orderedCssModulesPerChunk.get(chunk);
  444. if (modules !== undefined) {
  445. const { path: filename, info } = compilation.getPathWithInfo(
  446. CssModulesPlugin.getChunkFilenameTemplate(
  447. chunk,
  448. compilation.outputOptions
  449. ),
  450. {
  451. hash,
  452. runtime: chunk.runtime,
  453. chunk,
  454. contentHashType: "css"
  455. }
  456. );
  457. const undoPath = getUndoPath(
  458. filename,
  459. compilation.outputOptions.path,
  460. false
  461. );
  462. result.push({
  463. render: () =>
  464. this.renderChunk(
  465. {
  466. chunk,
  467. chunkGraph,
  468. codeGenerationResults,
  469. uniqueName: compilation.outputOptions.uniqueName,
  470. undoPath,
  471. modules,
  472. runtimeTemplate
  473. },
  474. hooks
  475. ),
  476. filename,
  477. info,
  478. identifier: `css${chunk.id}`,
  479. hash: chunk.contentHash.css
  480. });
  481. }
  482. return result;
  483. });
  484. const globalChunkLoading = compilation.outputOptions.chunkLoading;
  485. /**
  486. * @param {Chunk} chunk the chunk
  487. * @returns {boolean} true, when enabled
  488. */
  489. const isEnabledForChunk = (chunk) => {
  490. const options = chunk.getEntryOptions();
  491. const chunkLoading =
  492. options && options.chunkLoading !== undefined
  493. ? options.chunkLoading
  494. : globalChunkLoading;
  495. return chunkLoading === "jsonp" || chunkLoading === "import";
  496. };
  497. /** @type {WeakSet<Chunk>} */
  498. const onceForChunkSet = new WeakSet();
  499. /**
  500. * @param {Chunk} chunk chunk to check
  501. * @param {RuntimeRequirements} set runtime requirements
  502. */
  503. const handler = (chunk, set) => {
  504. if (onceForChunkSet.has(chunk)) return;
  505. onceForChunkSet.add(chunk);
  506. if (!isEnabledForChunk(chunk)) return;
  507. const CssLoadingRuntimeModule = getCssLoadingRuntimeModule();
  508. compilation.addRuntimeModule(chunk, new CssLoadingRuntimeModule(set));
  509. };
  510. compilation.hooks.runtimeRequirementInTree
  511. .for(RuntimeGlobals.hasCssModules)
  512. .tap(PLUGIN_NAME, handler);
  513. compilation.hooks.runtimeRequirementInTree
  514. .for(RuntimeGlobals.ensureChunkHandlers)
  515. .tap(PLUGIN_NAME, (chunk, set, { chunkGraph }) => {
  516. if (!isEnabledForChunk(chunk)) return;
  517. if (
  518. !chunkGraph.hasModuleInGraph(
  519. chunk,
  520. (m) =>
  521. m.type === CSS_MODULE_TYPE ||
  522. m.type === CSS_MODULE_TYPE_GLOBAL ||
  523. m.type === CSS_MODULE_TYPE_MODULE ||
  524. m.type === CSS_MODULE_TYPE_AUTO
  525. )
  526. ) {
  527. return;
  528. }
  529. set.add(RuntimeGlobals.hasOwnProperty);
  530. set.add(RuntimeGlobals.publicPath);
  531. set.add(RuntimeGlobals.getChunkCssFilename);
  532. });
  533. compilation.hooks.runtimeRequirementInTree
  534. .for(RuntimeGlobals.hmrDownloadUpdateHandlers)
  535. .tap(PLUGIN_NAME, (chunk, set, { chunkGraph }) => {
  536. if (!isEnabledForChunk(chunk)) return;
  537. if (
  538. !chunkGraph.hasModuleInGraph(
  539. chunk,
  540. (m) =>
  541. m.type === CSS_MODULE_TYPE ||
  542. m.type === CSS_MODULE_TYPE_GLOBAL ||
  543. m.type === CSS_MODULE_TYPE_MODULE ||
  544. m.type === CSS_MODULE_TYPE_AUTO
  545. )
  546. ) {
  547. return;
  548. }
  549. set.add(RuntimeGlobals.publicPath);
  550. set.add(RuntimeGlobals.getChunkCssFilename);
  551. });
  552. compilation.hooks.runtimeRequirementInTree
  553. .for(RuntimeGlobals.cssMergeStyleSheets)
  554. .tap(PLUGIN_NAME, (chunk) => {
  555. compilation.addRuntimeModule(
  556. chunk,
  557. new CssMergeStyleSheetsRuntimeModule()
  558. );
  559. });
  560. }
  561. );
  562. }
  563. /**
  564. * @param {Chunk} chunk chunk
  565. * @param {Iterable<Module> | undefined} modules unordered modules
  566. * @param {Compilation} compilation compilation
  567. * @returns {Module[]} ordered modules
  568. */
  569. getModulesInOrder(chunk, modules, compilation) {
  570. if (!modules) return [];
  571. /** @type {Module[]} */
  572. const modulesList = [...modules];
  573. // Get ordered list of modules per chunk group
  574. // Lists are in reverse order to allow to use Array.pop()
  575. const modulesByChunkGroup = Array.from(
  576. chunk.groupsIterable,
  577. (chunkGroup) => {
  578. const sortedModules = modulesList
  579. .map((module) => ({
  580. module,
  581. index: chunkGroup.getModulePostOrderIndex(module)
  582. }))
  583. .filter((item) => item.index !== undefined)
  584. .sort(
  585. (a, b) =>
  586. /** @type {number} */ (b.index) - /** @type {number} */ (a.index)
  587. )
  588. .map((item) => item.module);
  589. return { list: sortedModules, set: new Set(sortedModules) };
  590. }
  591. );
  592. if (modulesByChunkGroup.length === 1) {
  593. return modulesByChunkGroup[0].list.reverse();
  594. }
  595. const boundCompareModulesByFullName = compareModulesByFullName(
  596. compilation.compiler
  597. );
  598. /**
  599. * @param {{ list: Module[] }} a a
  600. * @param {{ list: Module[] }} b b
  601. * @returns {-1 | 0 | 1} result
  602. */
  603. const compareModuleLists = ({ list: a }, { list: b }) => {
  604. if (a.length === 0) {
  605. return b.length === 0 ? 0 : 1;
  606. }
  607. if (b.length === 0) return -1;
  608. return boundCompareModulesByFullName(a[a.length - 1], b[b.length - 1]);
  609. };
  610. modulesByChunkGroup.sort(compareModuleLists);
  611. /** @type {Module[]} */
  612. const finalModules = [];
  613. for (;;) {
  614. /** @type {Set<Module>} */
  615. const failedModules = new Set();
  616. const list = modulesByChunkGroup[0].list;
  617. if (list.length === 0) {
  618. // done, everything empty
  619. break;
  620. }
  621. /** @type {Module} */
  622. let selectedModule = list[list.length - 1];
  623. /** @type {undefined | false | Module} */
  624. let hasFailed;
  625. outer: for (;;) {
  626. for (const { list, set } of modulesByChunkGroup) {
  627. if (list.length === 0) continue;
  628. const lastModule = list[list.length - 1];
  629. if (lastModule === selectedModule) continue;
  630. if (!set.has(selectedModule)) continue;
  631. failedModules.add(selectedModule);
  632. if (failedModules.has(lastModule)) {
  633. // There is a conflict, try other alternatives
  634. hasFailed = lastModule;
  635. continue;
  636. }
  637. selectedModule = lastModule;
  638. hasFailed = false;
  639. continue outer; // restart
  640. }
  641. break;
  642. }
  643. if (hasFailed) {
  644. // There is a not resolve-able conflict with the selectedModule
  645. // TODO print better warning
  646. compilation.warnings.push(
  647. new WebpackError(
  648. `chunk ${chunk.name || chunk.id}\nConflicting order between ${hasFailed.readableIdentifier(
  649. compilation.requestShortener
  650. )} and ${selectedModule.readableIdentifier(
  651. compilation.requestShortener
  652. )}`
  653. )
  654. );
  655. selectedModule = /** @type {Module} */ (hasFailed);
  656. }
  657. // Insert the selected module into the final modules list
  658. finalModules.push(selectedModule);
  659. // Remove the selected module from all lists
  660. for (const { list, set } of modulesByChunkGroup) {
  661. const lastModule = list[list.length - 1];
  662. if (lastModule === selectedModule) {
  663. list.pop();
  664. } else if (hasFailed && set.has(selectedModule)) {
  665. const idx = list.indexOf(selectedModule);
  666. if (idx >= 0) list.splice(idx, 1);
  667. }
  668. }
  669. modulesByChunkGroup.sort(compareModuleLists);
  670. }
  671. return finalModules;
  672. }
  673. /**
  674. * @param {Chunk} chunk chunk
  675. * @param {ChunkGraph} chunkGraph chunk graph
  676. * @param {Compilation} compilation compilation
  677. * @returns {CssModule[]} ordered css modules
  678. */
  679. getOrderedChunkCssModules(chunk, chunkGraph, compilation) {
  680. return /** @type {CssModule[]} */ ([
  681. ...this.getModulesInOrder(
  682. chunk,
  683. chunkGraph.getOrderedChunkModulesIterableBySourceType(
  684. chunk,
  685. CSS_IMPORT_TYPE,
  686. compareModulesByFullName(compilation.compiler)
  687. ),
  688. compilation
  689. ),
  690. ...this.getModulesInOrder(
  691. chunk,
  692. chunkGraph.getOrderedChunkModulesIterableBySourceType(
  693. chunk,
  694. CSS_TYPE,
  695. compareModulesByFullName(compilation.compiler)
  696. ),
  697. compilation
  698. )
  699. ]);
  700. }
  701. /**
  702. * @param {CssModule} module css module
  703. * @param {ChunkRenderContext} renderContext options object
  704. * @param {CompilationHooks} hooks hooks
  705. * @returns {Source | null} css module source
  706. */
  707. static renderModule(module, renderContext, hooks) {
  708. const { undoPath, moduleFactoryCache, moduleSourceContent } = renderContext;
  709. const cacheEntry = moduleFactoryCache.get(moduleSourceContent);
  710. /** @type {Inheritance} */
  711. const inheritance = [[module.cssLayer, module.supports, module.media]];
  712. if (module.inheritance) {
  713. inheritance.push(...module.inheritance);
  714. }
  715. /** @type {CachedSource} */
  716. let source;
  717. if (
  718. cacheEntry &&
  719. cacheEntry.undoPath === undoPath &&
  720. cacheEntry.inheritance.every(([layer, supports, media], i) => {
  721. const item = inheritance[i];
  722. if (Array.isArray(item)) {
  723. return layer === item[0] && supports === item[1] && media === item[2];
  724. }
  725. return false;
  726. })
  727. ) {
  728. source = cacheEntry.source;
  729. } else {
  730. if (!moduleSourceContent) return null;
  731. const moduleSourceCode =
  732. /** @type {string} */
  733. (moduleSourceContent.source());
  734. const publicPathAutoRegex = new RegExp(
  735. CssUrlDependency.PUBLIC_PATH_AUTO,
  736. "g"
  737. );
  738. /** @type {Source} */
  739. let moduleSource = new ReplaceSource(moduleSourceContent);
  740. /** @type {null | RegExpExecArray} */
  741. let match;
  742. while ((match = publicPathAutoRegex.exec(moduleSourceCode))) {
  743. /** @type {ReplaceSource} */ (moduleSource).replace(
  744. match.index,
  745. (match.index += match[0].length - 1),
  746. undoPath
  747. );
  748. }
  749. for (let i = 0; i < inheritance.length; i++) {
  750. const layer = inheritance[i][0];
  751. const supports = inheritance[i][1];
  752. const media = inheritance[i][2];
  753. if (media) {
  754. moduleSource = new ConcatSource(
  755. `@media ${media} {\n`,
  756. new PrefixSource("\t", moduleSource),
  757. "}\n"
  758. );
  759. }
  760. if (supports) {
  761. moduleSource = new ConcatSource(
  762. `@supports (${supports}) {\n`,
  763. new PrefixSource("\t", moduleSource),
  764. "}\n"
  765. );
  766. }
  767. // Layer can be anonymous
  768. if (layer !== undefined && layer !== null) {
  769. moduleSource = new ConcatSource(
  770. `@layer${layer ? ` ${layer}` : ""} {\n`,
  771. new PrefixSource("\t", moduleSource),
  772. "}\n"
  773. );
  774. }
  775. }
  776. if (moduleSource) {
  777. moduleSource = new ConcatSource(moduleSource, "\n");
  778. }
  779. source = new CachedSource(moduleSource);
  780. moduleFactoryCache.set(moduleSourceContent, {
  781. inheritance,
  782. undoPath,
  783. source
  784. });
  785. }
  786. return tryRunOrWebpackError(
  787. () => hooks.renderModulePackage.call(source, module, renderContext),
  788. "CssModulesPlugin.getCompilationHooks().renderModulePackage"
  789. );
  790. }
  791. /**
  792. * @param {RenderContext} renderContext the render context
  793. * @param {CompilationHooks} hooks hooks
  794. * @returns {Source} generated source
  795. */
  796. renderChunk(
  797. {
  798. undoPath,
  799. chunk,
  800. codeGenerationResults,
  801. modules,
  802. runtimeTemplate,
  803. chunkGraph
  804. },
  805. hooks
  806. ) {
  807. const source = new ConcatSource();
  808. for (const module of modules) {
  809. try {
  810. const codeGenResult = codeGenerationResults.get(module, chunk.runtime);
  811. const moduleSourceContent =
  812. /** @type {Source} */
  813. (
  814. codeGenResult.sources.get(CSS_TYPE) ||
  815. codeGenResult.sources.get(CSS_IMPORT_TYPE)
  816. );
  817. const moduleSource = CssModulesPlugin.renderModule(
  818. module,
  819. {
  820. undoPath,
  821. chunk,
  822. chunkGraph,
  823. codeGenerationResults,
  824. moduleSourceContent,
  825. moduleFactoryCache: this._moduleFactoryCache,
  826. runtimeTemplate
  827. },
  828. hooks
  829. );
  830. if (moduleSource) {
  831. source.add(moduleSource);
  832. }
  833. } catch (err) {
  834. /** @type {Error} */
  835. (err).message += `\nduring rendering of css ${module.identifier()}`;
  836. throw err;
  837. }
  838. }
  839. chunk.rendered = true;
  840. return source;
  841. }
  842. /**
  843. * @param {Chunk} chunk chunk
  844. * @param {OutputOptions} outputOptions output options
  845. * @returns {TemplatePath} used filename template
  846. */
  847. static getChunkFilenameTemplate(chunk, outputOptions) {
  848. if (chunk.cssFilenameTemplate) {
  849. return chunk.cssFilenameTemplate;
  850. } else if (chunk.canBeInitial()) {
  851. return outputOptions.cssFilename;
  852. }
  853. return outputOptions.cssChunkFilename;
  854. }
  855. /**
  856. * @param {Chunk} chunk chunk
  857. * @param {ChunkGraph} chunkGraph chunk graph
  858. * @returns {boolean} true, when the chunk has css
  859. */
  860. static chunkHasCss(chunk, chunkGraph) {
  861. return (
  862. Boolean(
  863. chunkGraph.getChunkModulesIterableBySourceType(chunk, CSS_TYPE)
  864. ) ||
  865. Boolean(
  866. chunkGraph.getChunkModulesIterableBySourceType(chunk, CSS_IMPORT_TYPE)
  867. )
  868. );
  869. }
  870. }
  871. module.exports = CssModulesPlugin;