mirror of https://github.com/webpack/webpack.git
				
				
				
			
		
			
				
	
	
		
			90 lines
		
	
	
		
			2.0 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
			
		
		
	
	
			90 lines
		
	
	
		
			2.0 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
/*
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	MIT License http://www.opensource.org/licenses/mit-license.php
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	Author Tobias Koppers @sokra
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*/
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"use strict";
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const util = require("util");
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const compareLocations = require("./compareLocations");
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const DependencyReference = require("./dependencies/DependencyReference");
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/** @typedef {import("./Module")} Module */
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/** @typedef {import("webpack-sources").Source} Source */
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/** @typedef {import("./RuntimeTemplate")} RuntimeTemplate */
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/**
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 * @typedef {Object} DependencyTemplate
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 * @property {function(Dependency, Source, RuntimeTemplate, Map<Function, DependencyTemplate>): void} apply
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 */
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/** @typedef {Object} SourcePosition
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 *  @property {number} line
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 *  @property {number=} column
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 */
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/** @typedef {Object} RealDependencyLocation
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 *  @property {SourcePosition} start
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 *  @property {SourcePosition=} end
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 *  @property {number=} index
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 */
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/** @typedef {Object} SynteticDependencyLocation
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 *  @property {string} name
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 *  @property {number=} index
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 */
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/** @typedef {SynteticDependencyLocation|RealDependencyLocation} DependencyLocation */
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class Dependency {
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	constructor() {
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		/** @type {Module|null} */
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		this.module = null;
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		// TODO remove in webpack 5
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		/** @type {boolean} */
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		this.weak = false;
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		/** @type {boolean} */
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		this.optional = false;
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		/** @type {DependencyLocation} */
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		this.loc = undefined;
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	}
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	getResourceIdentifier() {
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		return null;
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	}
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	// Returns the referenced module and export
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	getReference() {
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		if (!this.module) return null;
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		return new DependencyReference(this.module, true, this.weak);
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	}
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	// Returns the exported names
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	getExports() {
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		return null;
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	}
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	getWarnings() {
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		return null;
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	}
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	getErrors() {
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		return null;
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	}
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	updateHash(hash) {
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		hash.update((this.module && this.module.id) + "");
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	}
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	disconnect() {
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		this.module = null;
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	}
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}
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// TODO remove in webpack 5
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Dependency.compare = util.deprecate(
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	(a, b) => compareLocations(a.loc, b.loc),
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	"Dependency.compare is deprecated and will be removed in the next major version"
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);
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module.exports = Dependency;
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