Method codeGeneration

lib/optimize/ConcatenatedModule.js:1400–2377

* Generates code and runtime requirements for this module. * @param {CodeGenerationContext} context context for code generation * @returns {CodeGenerationResult} result

({
		dependencyTemplates,
		runtimeTemplate,
		moduleGraph,
		chunkGraph,
		runtime: generationRuntime,
		runtimes,
		codeGenerationResults
	})

	 * @returns {CodeGenerationResult} result
	 */
	codeGeneration({
		dependencyTemplates,
		runtimeTemplate,
		moduleGraph,
		chunkGraph,
		runtime: generationRuntime,
		runtimes,
		codeGenerationResults
	}) {
		const { concatenatedModuleInfo } = ConcatenatedModule.getCompilationHooks(
			this.compilation
		);

		/** @type {RuntimeRequirements} */
		const runtimeRequirements = new Set();
		const runtime = intersectRuntime(generationRuntime, this._runtime);

		const requestShortener = runtimeTemplate.requestShortener;
		// Meta info for each module
		const [modulesWithInfo, moduleToInfoMap] = this._getModulesWithInfo(
			moduleGraph,
			runtime
		);

		// Set with modules that need a generated namespace object
		/** @type {NeededNamespaceObjects} */
		const neededNamespaceObjects = new Set();

		// Set with modules whose mangled namespace escapes as a whole value and
		// therefore needs a decoupled namespace object keyed by the original names
		/** @type {Set<ConcatenatedModuleInfo | ExternalModuleInfo>} */
		const neededEscapeNamespaceObjects = new Set();

		// List of all used names to avoid conflicts
		const allUsedNames = new Set(RESERVED_NAMES);

		// Generate source code and analyse scopes
		// Prepare a ReplaceSource for the final source
		for (const info of moduleToInfoMap.values()) {
			this._analyseModule(
				moduleToInfoMap,
				info,
				dependencyTemplates,
				runtimeTemplate,
				moduleGraph,
				chunkGraph,
				runtime,
				runtimes,
				/** @type {CodeGenerationResults} */
				(codeGenerationResults),
				allUsedNames
			);
		}

		// Updated Top level declarations are created by renaming
		/** @type {TopLevelDeclarations} */
		const topLevelDeclarations = new Set();