feat: refactoring project

node_modules/webpack/lib/css/CssExportsGenerator.js

@@ -8,18 +8,21 @@
 const { ReplaceSource, RawSource, ConcatSource } = require("webpack-sources");
 const { UsageState } = require("../ExportsInfo");
 const Generator = require("../Generator");
+const { JS_TYPES } = require("../ModuleSourceTypesConstants");
 const RuntimeGlobals = require("../RuntimeGlobals");
 const Template = require("../Template");
 
 /** @typedef {import("webpack-sources").Source} Source */
 /** @typedef {import("../../declarations/WebpackOptions").CssGeneratorExportsConvention} CssGeneratorExportsConvention */
 /** @typedef {import("../../declarations/WebpackOptions").CssGeneratorLocalIdentName} CssGeneratorLocalIdentName */
+/** @typedef {import("../CodeGenerationResults")} CodeGenerationResults */
 /** @typedef {import("../Dependency")} Dependency */
 /** @typedef {import("../DependencyTemplate").CssDependencyTemplateContext} DependencyTemplateContext */
 /** @typedef {import("../DependencyTemplate").CssExportsData} CssExportsData */
 /** @typedef {import("../Generator").GenerateContext} GenerateContext */
 /** @typedef {import("../Generator").UpdateHashContext} UpdateHashContext */
 /** @typedef {import("../Module").ConcatenationBailoutReasonContext} ConcatenationBailoutReasonContext */
+/** @typedef {import("../Module").SourceTypes} SourceTypes */
 /** @typedef {import("../NormalModule")} NormalModule */
 /** @typedef {import("../util/Hash")} Hash */
 
@@ -28,19 +31,15 @@ const Template = require("../Template");
  * @typedef {import("../InitFragment")<T>} InitFragment
  */
 
-const TYPES = new Set(["javascript"]);
-
 class CssExportsGenerator extends Generator {
 	/**
-	 * @param {CssGeneratorExportsConvention | undefined} convention the convention of the exports name
-	 * @param {CssGeneratorLocalIdentName | undefined} localIdentName css export local ident name
+	 * @param {CssGeneratorExportsConvention} convention the convention of the exports name
+	 * @param {CssGeneratorLocalIdentName} localIdentName css export local ident name
 	 * @param {boolean} esModule whether to use ES modules syntax
 	 */
 	constructor(convention, localIdentName, esModule) {
 		super();
-		/** @type {CssGeneratorExportsConvention | undefined} */
 		this.convention = convention;
-		/** @type {CssGeneratorLocalIdentName | undefined} */
 		this.localIdentName = localIdentName;
 		/** @type {boolean} */
 		this.esModule = esModule;
@@ -68,11 +67,11 @@ class CssExportsGenerator extends Generator {
 	/**
 	 * @param {NormalModule} module module for which the code should be generated
 	 * @param {GenerateContext} generateContext context for generate
-	 * @returns {Source} generated code
+	 * @returns {Source | null} generated code
 	 */
 	generate(module, generateContext) {
 		const source = new ReplaceSource(new RawSource(""));
-		/** @type {InitFragment<TODO>[]} */
+		/** @type {InitFragment<GenerateContext>[]} */
 		const initFragments = [];
 		/** @type {CssExportsData} */
 		const cssExportsData = {
@@ -82,6 +81,7 @@ class CssExportsGenerator extends Generator {
 
 		generateContext.runtimeRequirements.add(RuntimeGlobals.module);
 
+		/** @type {InitFragment<GenerateContext>[] | undefined} */
 		let chunkInitFragments;
 		const runtimeRequirements = new Set();
 
@@ -93,14 +93,18 @@ class CssExportsGenerator extends Generator {
 			chunkGraph: generateContext.chunkGraph,
 			module,
 			runtime: generateContext.runtime,
-			runtimeRequirements: runtimeRequirements,
+			runtimeRequirements,
 			concatenationScope: generateContext.concatenationScope,
-			codeGenerationResults: generateContext.codeGenerationResults,
+			codeGenerationResults:
+				/** @type {CodeGenerationResults} */
+				(generateContext.codeGenerationResults),
 			initFragments,
 			cssExportsData,
 			get chunkInitFragments() {
 				if (!chunkInitFragments) {
-					const data = generateContext.getData();
+					const data =
+						/** @type {NonNullable<GenerateContext["getData"]>} */
+						(generateContext.getData)();
 					chunkInitFragments = data.get("chunkInitFragments");
 					if (!chunkInitFragments) {
 						chunkInitFragments = [];
@@ -122,20 +126,23 @@ class CssExportsGenerator extends Generator {
 			const template = generateContext.dependencyTemplates.get(constructor);
 			if (!template) {
 				throw new Error(
-					"No template for dependency: " + dependency.constructor.name
+					`No template for dependency: ${dependency.constructor.name}`
 				);
 			}
 
 			template.apply(dependency, source, templateContext);
 		};
-		module.dependencies.forEach(handleDependency);
+
+		for (const dependency of module.dependencies) {
+			handleDependency(dependency);
+		}
 
 		if (generateContext.concatenationScope) {
 			const source = new ConcatSource();
 			const usedIdentifiers = new Set();
 			for (const [name, v] of cssExportsData.exports) {
 				let identifier = Template.toIdentifier(name);
-				let i = 0;
+				const i = 0;
 				while (usedIdentifiers.has(identifier)) {
 					identifier = Template.toIdentifier(name + i);
 				}
@@ -148,36 +155,35 @@ class CssExportsGenerator extends Generator {
 				);
 			}
 			return source;
-		} else {
-			const needNsObj =
-				this.esModule &&
-				generateContext.moduleGraph
-					.getExportsInfo(module)
-					.otherExportsInfo.getUsed(generateContext.runtime) !==
-					UsageState.Unused;
-			if (needNsObj) {
-				generateContext.runtimeRequirements.add(
-					RuntimeGlobals.makeNamespaceObject
-				);
-			}
-			const exports = [];
-			for (let [name, v] of cssExportsData.exports) {
-				exports.push(`\t${JSON.stringify(name)}: ${JSON.stringify(v)}`);
-			}
-			return new RawSource(
-				`${needNsObj ? `${RuntimeGlobals.makeNamespaceObject}(` : ""}${
-					module.moduleArgument
-				}.exports = {\n${exports.join(",\n")}\n}${needNsObj ? ")" : ""};`
+		}
+		const needNsObj =
+			this.esModule &&
+			generateContext.moduleGraph
+				.getExportsInfo(module)
+				.otherExportsInfo.getUsed(generateContext.runtime) !==
+				UsageState.Unused;
+		if (needNsObj) {
+			generateContext.runtimeRequirements.add(
+				RuntimeGlobals.makeNamespaceObject
 			);
 		}
+		const exports = [];
+		for (const [name, v] of cssExportsData.exports) {
+			exports.push(`\t${JSON.stringify(name)}: ${JSON.stringify(v)}`);
+		}
+		return new RawSource(
+			`${needNsObj ? `${RuntimeGlobals.makeNamespaceObject}(` : ""}${
+				module.moduleArgument
+			}.exports = {\n${exports.join(",\n")}\n}${needNsObj ? ")" : ""};`
+		);
 	}
 
 	/**
 	 * @param {NormalModule} module fresh module
-	 * @returns {Set<string>} available types (do not mutate)
+	 * @returns {SourceTypes} available types (do not mutate)
 	 */
 	getTypes(module) {
-		return TYPES;
+		return JS_TYPES;
 	}
 
 	/**