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							124 lines
						
					
					
						
							3.3 KiB
						
					
					
				
			
		
		
	
	
							124 lines
						
					
					
						
							3.3 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 DependenciesBlockVariable = require("./DependenciesBlockVariable"); | 
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 | 
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/** @typedef {import("./ChunkGroup")} ChunkGroup */ | 
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/** @typedef {import("./Dependency")} Dependency */ | 
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/** @typedef {import("./AsyncDependenciesBlock")} AsyncDependenciesBlock */ | 
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/** @typedef {import("./DependenciesBlockVariable")} DependenciesBlockVariable */ | 
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/** @typedef {(d: Dependency) => boolean} DependencyFilterFunction */ | 
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/** @typedef {import("./util/createHash").Hash} Hash */ | 
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 | 
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class DependenciesBlock { | 
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	constructor() { | 
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		/** @type {Dependency[]} */ | 
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		this.dependencies = []; | 
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		/** @type {AsyncDependenciesBlock[]} */ | 
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		this.blocks = []; | 
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		/** @type {DependenciesBlockVariable[]} */ | 
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		this.variables = []; | 
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	} | 
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 | 
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	/** | 
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	 * Adds a DependencyBlock to DependencyBlock relationship. | 
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	 * This is used for when a Module has a AsyncDependencyBlock tie (for code-splitting) | 
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	 * | 
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	 * @param {AsyncDependenciesBlock} block block being added | 
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	 * @returns {void} | 
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	 */ | 
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	addBlock(block) { | 
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		this.blocks.push(block); | 
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		block.parent = this; | 
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	} | 
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 | 
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	/** | 
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	 * @param {string} name name of dependency | 
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	 * @param {string} expression expression string for variable | 
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	 * @param {Dependency[]} dependencies dependency instances tied to variable | 
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	 * @returns {void} | 
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	 */ | 
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	addVariable(name, expression, dependencies) { | 
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		for (let v of this.variables) { | 
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			if (v.name === name && v.expression === expression) { | 
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				return; | 
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			} | 
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		} | 
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		this.variables.push( | 
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			new DependenciesBlockVariable(name, expression, dependencies) | 
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		); | 
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	} | 
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 | 
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	/** | 
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	 * @param {Dependency} dependency dependency being tied to block. | 
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	 * This is an "edge" pointing to another "node" on module graph. | 
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	 * @returns {void} | 
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	 */ | 
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	addDependency(dependency) { | 
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		this.dependencies.push(dependency); | 
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	} | 
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 | 
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	/** | 
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	 * @param {Dependency} dependency dependency being removed | 
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	 * @returns {void} | 
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	 */ | 
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	removeDependency(dependency) { | 
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		const idx = this.dependencies.indexOf(dependency); | 
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		if (idx >= 0) { | 
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			this.dependencies.splice(idx, 1); | 
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		} | 
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	} | 
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 | 
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	/** | 
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	 * @param {Hash} hash the hash used to track dependencies | 
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	 * @returns {void} | 
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	 */ | 
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	updateHash(hash) { | 
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		for (const dep of this.dependencies) dep.updateHash(hash); | 
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		for (const block of this.blocks) block.updateHash(hash); | 
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		for (const variable of this.variables) variable.updateHash(hash); | 
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	} | 
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 | 
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	disconnect() { | 
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		for (const dep of this.dependencies) dep.disconnect(); | 
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		for (const block of this.blocks) block.disconnect(); | 
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		for (const variable of this.variables) variable.disconnect(); | 
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	} | 
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 | 
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	unseal() { | 
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		for (const block of this.blocks) block.unseal(); | 
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	} | 
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 | 
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	/** | 
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	 * @param {DependencyFilterFunction} filter filter function for dependencies, gets passed all dependency ties from current instance | 
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	 * @returns {boolean} returns boolean for filter | 
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	 */ | 
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	hasDependencies(filter) { | 
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		if (filter) { | 
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			for (const dep of this.dependencies) { | 
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				if (filter(dep)) return true; | 
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			} | 
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		} else { | 
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			if (this.dependencies.length > 0) { | 
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				return true; | 
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			} | 
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		} | 
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 | 
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		for (const block of this.blocks) { | 
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			if (block.hasDependencies(filter)) return true; | 
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		} | 
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		for (const variable of this.variables) { | 
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			if (variable.hasDependencies(filter)) return true; | 
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		} | 
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		return false; | 
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	} | 
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 | 
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	sortItems() { | 
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		for (const block of this.blocks) block.sortItems(); | 
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	} | 
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} | 
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 | 
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module.exports = DependenciesBlock;
 | 
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 |