ヤミRoot VoidGate

Viewing: ImportDependency.js

/*
	MIT License http://www.opensource.org/licenses/mit-license.php
	Author Tobias Koppers @sokra
*/

"use strict";

const Dependency = require("../Dependency");
const makeSerializable = require("../util/makeSerializable");
const ModuleDependency = require("./ModuleDependency");

/** @typedef {import("webpack-sources").ReplaceSource} ReplaceSource */
/** @typedef {import("../AsyncDependenciesBlock")} AsyncDependenciesBlock */
/** @typedef {import("../Dependency").ReferencedExport} ReferencedExport */
/** @typedef {import("../DependencyTemplate").DependencyTemplateContext} DependencyTemplateContext */
/** @typedef {import("../Module")} Module */
/** @typedef {import("../Module").BuildMeta} BuildMeta */
/** @typedef {import("../ModuleGraph")} ModuleGraph */
/** @typedef {import("../javascript/JavascriptParser").Range} Range */
/** @typedef {import("../serialization/ObjectMiddleware").ObjectDeserializerContext} ObjectDeserializerContext */
/** @typedef {import("../serialization/ObjectMiddleware").ObjectSerializerContext} ObjectSerializerContext */
/** @typedef {import("../util/runtime").RuntimeSpec} RuntimeSpec */

class ImportDependency extends ModuleDependency {
	/**
	 * @param {string} request the request
	 * @param {Range} range expression range
	 * @param {(string[][] | null)=} referencedExports list of referenced exports
	 */
	constructor(request, range, referencedExports) {
		super(request);
		this.range = range;
		this.referencedExports = referencedExports;
	}

	get type() {
		return "import()";
	}

	get category() {
		return "esm";
	}

	/**
	 * Returns list of exports referenced by this dependency
	 * @param {ModuleGraph} moduleGraph module graph
	 * @param {RuntimeSpec} runtime the runtime for which the module is analysed
	 * @returns {(string[] | ReferencedExport)[]} referenced exports
	 */
	getReferencedExports(moduleGraph, runtime) {
		return this.referencedExports
			? this.referencedExports.map(e => ({
					name: e,
					canMangle: false
			  }))
			: Dependency.EXPORTS_OBJECT_REFERENCED;
	}

	/**
	 * @param {ObjectSerializerContext} context context
	 */
	serialize(context) {
		context.write(this.range);
		context.write(this.referencedExports);
		super.serialize(context);
	}

	/**
	 * @param {ObjectDeserializerContext} context context
	 */
	deserialize(context) {
		this.range = context.read();
		this.referencedExports = context.read();
		super.deserialize(context);
	}
}

makeSerializable(ImportDependency, "webpack/lib/dependencies/ImportDependency");

ImportDependency.Template = class ImportDependencyTemplate extends (
	ModuleDependency.Template
) {
	/**
	 * @param {Dependency} dependency the dependency for which the template should be applied
	 * @param {ReplaceSource} source the current replace source which can be modified
	 * @param {DependencyTemplateContext} templateContext the context object
	 * @returns {void}
	 */
	apply(
		dependency,
		source,
		{ runtimeTemplate, module, moduleGraph, chunkGraph, runtimeRequirements }
	) {
		const dep = /** @type {ImportDependency} */ (dependency);
		const block = /** @type {AsyncDependenciesBlock} */ (
			moduleGraph.getParentBlock(dep)
		);
		const content = runtimeTemplate.moduleNamespacePromise({
			chunkGraph,
			block: block,
			module: /** @type {Module} */ (moduleGraph.getModule(dep)),
			request: dep.request,
			strict: /** @type {BuildMeta} */ (module.buildMeta).strictHarmonyModule,
			message: "import()",
			runtimeRequirements
		});

		source.replace(dep.range[0], dep.range[1] - 1, content);
	}
};

module.exports = ImportDependency;
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