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app_vue/node_modules/webpack/lib/javascript/JavascriptGenerator.js

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+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+const util = require("util");
+const { RawSource, ReplaceSource } = require("webpack-sources");
+const Generator = require("../Generator");
+const InitFragment = require("../InitFragment");
+const { JS_TYPES } = require("../ModuleSourceTypesConstants");
+const HarmonyCompatibilityDependency = require("../dependencies/HarmonyCompatibilityDependency");
+
+/** @typedef {import("webpack-sources").Source} Source */
+/** @typedef {import("../DependenciesBlock")} DependenciesBlock */
+/** @typedef {import("../Dependency")} Dependency */
+/** @typedef {import("../DependencyTemplate")} DependencyTemplate */
+/** @typedef {import("../DependencyTemplate").DependencyTemplateContext} DependencyTemplateContext */
+/** @typedef {import("../DependencyTemplates")} DependencyTemplates */
+/** @typedef {import("../Generator").GenerateContext} GenerateContext */
+/** @typedef {import("../Module")} Module */
+/** @typedef {import("../Module").ConcatenationBailoutReasonContext} ConcatenationBailoutReasonContext */
+/** @typedef {import("../Module").SourceTypes} SourceTypes */
+/** @typedef {import("../NormalModule")} NormalModule */
+/** @typedef {import("../RuntimeTemplate")} RuntimeTemplate */
+
+// TODO: clean up this file
+// replace with newer constructs
+
+const deprecatedGetInitFragments = util.deprecate(
+	/**
+	 * @param {DependencyTemplate} template template
+	 * @param {Dependency} dependency dependency
+	 * @param {DependencyTemplateContext} templateContext template context
+	 * @returns {InitFragment<GenerateContext>[]} init fragments
+	 */
+	(template, dependency, templateContext) =>
+		/** @type {DependencyTemplate & { getInitFragments: (dependency: Dependency, dependencyTemplateContext: DependencyTemplateContext) => InitFragment<GenerateContext>[] }} */
+		(template).getInitFragments(dependency, templateContext),
+	"DependencyTemplate.getInitFragment is deprecated (use apply(dep, source, { initFragments }) instead)",
+	"DEP_WEBPACK_JAVASCRIPT_GENERATOR_GET_INIT_FRAGMENTS"
+);
+
+class JavascriptGenerator extends Generator {
+	/**
+	 * @param {NormalModule} module fresh module
+	 * @returns {SourceTypes} available types (do not mutate)
+	 */
+	getTypes(module) {
+		return JS_TYPES;
+	}
+
+	/**
+	 * @param {NormalModule} module the module
+	 * @param {string=} type source type
+	 * @returns {number} estimate size of the module
+	 */
+	getSize(module, type) {
+		const originalSource = module.originalSource();
+		if (!originalSource) {
+			return 39;
+		}
+		return originalSource.size();
+	}
+
+	/**
+	 * @param {NormalModule} module module for which the bailout reason should be determined
+	 * @param {ConcatenationBailoutReasonContext} context context
+	 * @returns {string | undefined} reason why this module can't be concatenated, undefined when it can be concatenated
+	 */
+	getConcatenationBailoutReason(module, context) {
+		// Only harmony modules are valid for optimization
+		if (
+			!module.buildMeta ||
+			module.buildMeta.exportsType !== "namespace" ||
+			module.presentationalDependencies === undefined ||
+			!module.presentationalDependencies.some(
+				d => d instanceof HarmonyCompatibilityDependency
+			)
+		) {
+			return "Module is not an ECMAScript module";
+		}
+
+		// Some expressions are not compatible with module concatenation
+		// because they may produce unexpected results. The plugin bails out
+		// if some were detected upfront.
+		if (module.buildInfo && module.buildInfo.moduleConcatenationBailout) {
+			return `Module uses ${module.buildInfo.moduleConcatenationBailout}`;
+		}
+	}
+
+	/**
+	 * @param {NormalModule} module module for which the code should be generated
+	 * @param {GenerateContext} generateContext context for generate
+	 * @returns {Source | null} generated code
+	 */
+	generate(module, generateContext) {
+		const originalSource = module.originalSource();
+		if (!originalSource) {
+			return new RawSource("throw new Error('No source available');");
+		}
+
+		const source = new ReplaceSource(originalSource);
+		/** @type {InitFragment<GenerateContext>[]} */
+		const initFragments = [];
+
+		this.sourceModule(module, initFragments, source, generateContext);
+
+		return InitFragment.addToSource(source, initFragments, generateContext);
+	}
+
+	/**
+	 * @param {Error} error the error
+	 * @param {NormalModule} module module for which the code should be generated
+	 * @param {GenerateContext} generateContext context for generate
+	 * @returns {Source | null} generated code
+	 */
+	generateError(error, module, generateContext) {
+		return new RawSource(`throw new Error(${JSON.stringify(error.message)});`);
+	}
+
+	/**
+	 * @param {Module} module the module to generate
+	 * @param {InitFragment<GenerateContext>[]} initFragments mutable list of init fragments
+	 * @param {ReplaceSource} source the current replace source which can be modified
+	 * @param {GenerateContext} generateContext the generateContext
+	 * @returns {void}
+	 */
+	sourceModule(module, initFragments, source, generateContext) {
+		for (const dependency of module.dependencies) {
+			this.sourceDependency(
+				module,
+				dependency,
+				initFragments,
+				source,
+				generateContext
+			);
+		}
+
+		if (module.presentationalDependencies !== undefined) {
+			for (const dependency of module.presentationalDependencies) {
+				this.sourceDependency(
+					module,
+					dependency,
+					initFragments,
+					source,
+					generateContext
+				);
+			}
+		}
+
+		for (const childBlock of module.blocks) {
+			this.sourceBlock(
+				module,
+				childBlock,
+				initFragments,
+				source,
+				generateContext
+			);
+		}
+	}
+
+	/**
+	 * @param {Module} module the module to generate
+	 * @param {DependenciesBlock} block the dependencies block which will be processed
+	 * @param {InitFragment<GenerateContext>[]} initFragments mutable list of init fragments
+	 * @param {ReplaceSource} source the current replace source which can be modified
+	 * @param {GenerateContext} generateContext the generateContext
+	 * @returns {void}
+	 */
+	sourceBlock(module, block, initFragments, source, generateContext) {
+		for (const dependency of block.dependencies) {
+			this.sourceDependency(
+				module,
+				dependency,
+				initFragments,
+				source,
+				generateContext
+			);
+		}
+
+		for (const childBlock of block.blocks) {
+			this.sourceBlock(
+				module,
+				childBlock,
+				initFragments,
+				source,
+				generateContext
+			);
+		}
+	}
+
+	/**
+	 * @param {Module} module the current module
+	 * @param {Dependency} dependency the dependency to generate
+	 * @param {InitFragment<GenerateContext>[]} initFragments mutable list of init fragments
+	 * @param {ReplaceSource} source the current replace source which can be modified
+	 * @param {GenerateContext} generateContext the render context
+	 * @returns {void}
+	 */
+	sourceDependency(module, dependency, initFragments, source, generateContext) {
+		const constructor =
+			/** @type {new (...args: EXPECTED_ANY[]) => Dependency} */
+			(dependency.constructor);
+		const template = generateContext.dependencyTemplates.get(constructor);
+		if (!template) {
+			throw new Error(
+				`No template for dependency: ${dependency.constructor.name}`
+			);
+		}
+
+		/** @type {InitFragment<GenerateContext>[] | undefined} */
+		let chunkInitFragments;
+
+		/** @type {DependencyTemplateContext} */
+		const templateContext = {
+			runtimeTemplate: generateContext.runtimeTemplate,
+			dependencyTemplates: generateContext.dependencyTemplates,
+			moduleGraph: generateContext.moduleGraph,
+			chunkGraph: generateContext.chunkGraph,
+			module,
+			runtime: generateContext.runtime,
+			runtimeRequirements: generateContext.runtimeRequirements,
+			concatenationScope: generateContext.concatenationScope,
+			codeGenerationResults:
+				/** @type {NonNullable<GenerateContext["codeGenerationResults"]>} */
+				(generateContext.codeGenerationResults),
+			initFragments,
+			get chunkInitFragments() {
+				if (!chunkInitFragments) {
+					const data =
+						/** @type {NonNullable<GenerateContext["getData"]>} */
+						(generateContext.getData)();
+					chunkInitFragments = data.get("chunkInitFragments");
+					if (!chunkInitFragments) {
+						chunkInitFragments = [];
+						data.set("chunkInitFragments", chunkInitFragments);
+					}
+				}
+
+				return chunkInitFragments;
+			}
+		};
+
+		template.apply(dependency, source, templateContext);
+
+		// TODO remove in webpack 6
+		if ("getInitFragments" in template) {
+			const fragments = deprecatedGetInitFragments(
+				template,
+				dependency,
+				templateContext
+			);
+
+			if (fragments) {
+				for (const fragment of fragments) {
+					initFragments.push(fragment);
+				}
+			}
+		}
+	}
+}
+
+module.exports = JavascriptGenerator;