158 lines
		
	
	
		
			4.6 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			158 lines
		
	
	
		
			4.6 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
/*
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	MIT License http://www.opensource.org/licenses/mit-license.php
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	Author Florent Cailhol @ooflorent
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*/
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"use strict";
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const Dependency = require("../Dependency");
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const InitFragment = require("../InitFragment");
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const makeSerializable = require("../util/makeSerializable");
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const ModuleDependency = require("./ModuleDependency");
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/** @typedef {import("webpack-sources").ReplaceSource} ReplaceSource */
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/** @typedef {import("../ChunkGraph")} ChunkGraph */
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/** @typedef {import("../Dependency").ReferencedExport} ReferencedExport */
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/** @typedef {import("../Dependency").UpdateHashContext} UpdateHashContext */
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/** @typedef {import("../DependencyTemplate").DependencyTemplateContext} DependencyTemplateContext */
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/** @typedef {import("../DependencyTemplates")} DependencyTemplates */
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/** @typedef {import("../ModuleGraph")} ModuleGraph */
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/** @typedef {import("../ModuleGraphConnection")} ModuleGraphConnection */
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/** @typedef {import("../RuntimeTemplate")} RuntimeTemplate */
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/** @typedef {import("../javascript/JavascriptParser").Range} Range */
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/** @typedef {import("../serialization/ObjectMiddleware").ObjectDeserializerContext} ObjectDeserializerContext */
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/** @typedef {import("../serialization/ObjectMiddleware").ObjectSerializerContext} ObjectSerializerContext */
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/** @typedef {import("../util/Hash")} Hash */
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/** @typedef {import("../util/runtime").RuntimeSpec} RuntimeSpec */
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/**
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 * @param {string[]|null} path the property path array
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 * @returns {string} the converted path
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 */
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const pathToString = (path) =>
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	path !== null && path.length > 0
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		? path.map((part) => `[${JSON.stringify(part)}]`).join("")
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		: "";
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class ProvidedDependency extends ModuleDependency {
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	/**
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	 * @param {string} request request
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	 * @param {string} identifier identifier
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	 * @param {string[]} ids ids
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	 * @param {Range} range range
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	 */
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	constructor(request, identifier, ids, range) {
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		super(request);
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		this.identifier = identifier;
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		this.ids = ids;
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		this.range = range;
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		this._hashUpdate = undefined;
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	}
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	get type() {
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		return "provided";
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	}
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	get category() {
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		return "esm";
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	}
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	/**
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	 * Returns list of exports referenced by this dependency
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	 * @param {ModuleGraph} moduleGraph module graph
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	 * @param {RuntimeSpec} runtime the runtime for which the module is analysed
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	 * @returns {(string[] | ReferencedExport)[]} referenced exports
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	 */
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	getReferencedExports(moduleGraph, runtime) {
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		const ids = this.ids;
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		if (ids.length === 0) return Dependency.EXPORTS_OBJECT_REFERENCED;
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		return [ids];
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	}
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	/**
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	 * Update the hash
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	 * @param {Hash} hash hash to be updated
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	 * @param {UpdateHashContext} context context
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	 * @returns {void}
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	 */
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	updateHash(hash, context) {
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		if (this._hashUpdate === undefined) {
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			this._hashUpdate = this.identifier + (this.ids ? this.ids.join(",") : "");
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		}
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		hash.update(this._hashUpdate);
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	}
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	/**
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	 * @param {ObjectSerializerContext} context context
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	 */
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	serialize(context) {
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		const { write } = context;
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		write(this.identifier);
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		write(this.ids);
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		super.serialize(context);
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	}
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	/**
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	 * @param {ObjectDeserializerContext} context context
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	 */
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	deserialize(context) {
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		const { read } = context;
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		this.identifier = read();
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		this.ids = read();
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		super.deserialize(context);
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	}
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}
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makeSerializable(
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	ProvidedDependency,
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	"webpack/lib/dependencies/ProvidedDependency"
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);
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class ProvidedDependencyTemplate extends ModuleDependency.Template {
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	/**
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	 * @param {Dependency} dependency the dependency for which the template should be applied
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	 * @param {ReplaceSource} source the current replace source which can be modified
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	 * @param {DependencyTemplateContext} templateContext the context object
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	 * @returns {void}
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	 */
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	apply(
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		dependency,
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		source,
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		{
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			runtime,
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			runtimeTemplate,
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			moduleGraph,
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			chunkGraph,
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			initFragments,
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			runtimeRequirements
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		}
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	) {
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		const dep = /** @type {ProvidedDependency} */ (dependency);
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		const connection =
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			/** @type {ModuleGraphConnection} */
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			(moduleGraph.getConnection(dep));
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		const exportsInfo = moduleGraph.getExportsInfo(connection.module);
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		const usedName = exportsInfo.getUsedName(dep.ids, runtime);
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		initFragments.push(
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			new InitFragment(
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				`/* provided dependency */ var ${
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					dep.identifier
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				} = ${runtimeTemplate.moduleExports({
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					module: moduleGraph.getModule(dep),
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					chunkGraph,
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					request: dep.request,
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					runtimeRequirements
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				})}${pathToString(/** @type {string[]} */ (usedName))};\n`,
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				InitFragment.STAGE_PROVIDES,
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				1,
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				`provided ${dep.identifier}`
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			)
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		);
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		source.replace(dep.range[0], dep.range[1] - 1, dep.identifier);
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	}
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}
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ProvidedDependency.Template = ProvidedDependencyTemplate;
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module.exports = ProvidedDependency;
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