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							72 lines
						
					
					
						
							2.1 KiB
						
					
					
				
			
		
		
	
	
							72 lines
						
					
					
						
							2.1 KiB
						
					
					
				/* | 
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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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 | 
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const { RawSource, ReplaceSource } = require("webpack-sources"); | 
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 | 
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/** @typedef {import("./Dependency")} Dependency */ | 
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/** @typedef {import("./Dependency").DependencyTemplate} DependencyTemplate */ | 
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/** @typedef {import("./RuntimeTemplate")} RuntimeTemplate */ | 
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/** @typedef {import("./util/createHash").Hash} Hash */ | 
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/** @typedef {(d: Dependency) => boolean} DependencyFilterFunction */ | 
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/** @typedef {Map<Function, DependencyTemplate>} DependencyTemplates */ | 
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 | 
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class DependenciesBlockVariable { | 
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	/** | 
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	 * Creates an instance of DependenciesBlockVariable. | 
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	 * @param {string} name name of DependenciesBlockVariable | 
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	 * @param {string} expression expression string | 
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	 * @param {Dependency[]=} dependencies dependencies tied to this varaiable | 
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	 */ | 
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	constructor(name, expression, dependencies) { | 
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		this.name = name; | 
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		this.expression = expression; | 
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		this.dependencies = dependencies || []; | 
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	} | 
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 | 
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	/** | 
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	 * @param {Hash} hash hash for instance to update | 
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	 * @returns {void} | 
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	 */ | 
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	updateHash(hash) { | 
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		hash.update(this.name); | 
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		hash.update(this.expression); | 
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		for (const d of this.dependencies) { | 
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			d.updateHash(hash); | 
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		} | 
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	} | 
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 | 
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	/** | 
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	 * @param {DependencyTemplates} dependencyTemplates Dependency constructors and templates Map. | 
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	 * @param {RuntimeTemplate} runtimeTemplate runtimeTemplate to generate expression souce | 
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	 * @returns {ReplaceSource} returns constructed source for expression via templates | 
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	 */ | 
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	expressionSource(dependencyTemplates, runtimeTemplate) { | 
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		const source = new ReplaceSource(new RawSource(this.expression)); | 
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		for (const dep of this.dependencies) { | 
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			const template = dependencyTemplates.get(dep.constructor); | 
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			if (!template) { | 
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				throw new Error(`No template for dependency: ${dep.constructor.name}`); | 
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			} | 
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			template.apply(dep, source, runtimeTemplate, dependencyTemplates); | 
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		} | 
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		return source; | 
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	} | 
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 | 
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	disconnect() { | 
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		for (const d of this.dependencies) { | 
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			d.disconnect(); | 
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		} | 
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	} | 
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 | 
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	hasDependencies(filter) { | 
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		if (filter) { | 
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			return this.dependencies.some(filter); | 
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		} | 
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		return this.dependencies.length > 0; | 
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	} | 
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} | 
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 | 
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module.exports = DependenciesBlockVariable;
 | 
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 |