Method codeGeneration

lib/ContextModule.js:1373–1426

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

(context)

	 * @returns {CodeGenerationResult} result
	 */
	codeGeneration(context) {
		const { chunkGraph, compilation } = context;

		/** @type {Sources} */
		const sources = new Map();
		sources.set(
			JAVASCRIPT_TYPE,
			this.getSource(
				this.getSourceString(
					this.options.mode,
					this.options.phase || ImportPhase.Evaluation,
					context
				),
				compilation
			)
		);
		/** @type {RuntimeRequirements} */
		const set = new Set();
		const allDeps =
			this.dependencies.length > 0
				? /** @type {ContextElementDependency[]} */ [...this.dependencies]
				: [];
		for (const block of this.blocks) {
			for (const dep of block.dependencies) {
				allDeps.push(/** @type {ContextElementDependency} */ (dep));
			}
		}
		set.add(RuntimeGlobals.module);
		set.add(RuntimeGlobals.hasOwnProperty);
		if (allDeps.length > 0) {
			const asyncMode = this.options.mode;
			set.add(RuntimeGlobals.require);
			if (asyncMode === "weak") {
				set.add(RuntimeGlobals.moduleFactories);
			} else if (asyncMode === "async-weak") {
				set.add(RuntimeGlobals.moduleFactories);
				set.add(RuntimeGlobals.ensureChunk);
			} else if (asyncMode === "lazy" || asyncMode === "lazy-once") {
				set.add(RuntimeGlobals.ensureChunk);
			}
			if (this.getFakeMap(allDeps, chunkGraph) !== 9) {
				set.add(RuntimeGlobals.createFakeNamespaceObject);
			}
			if (
				ImportPhaseUtils.isDefer(this.options.phase || ImportPhase.Evaluation)
			) {
				set.add(RuntimeGlobals.makeDeferredNamespaceObject);
			}
		}
		return {
			sources,
			runtimeRequirements: set
		};
	}

	/**
	 * Returns the estimated size for the requested source type.