82 lines
		
	
	
		
			1.6 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			82 lines
		
	
	
		
			1.6 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 DependenciesBlockVariable = require("./DependenciesBlockVariable");
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function disconnect(i) {
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	i.disconnect();
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}
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function unseal(i) {
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	i.unseal();
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}
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class DependenciesBlock {
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	constructor() {
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		this.dependencies = [];
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		this.blocks = [];
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		this.variables = [];
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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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	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(new DependenciesBlockVariable(name, expression, dependencies));
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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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	updateHash(hash) {
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		function updateHash(i) {
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			i.updateHash(hash);
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		}
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		this.dependencies.forEach(updateHash);
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		this.blocks.forEach(updateHash);
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		this.variables.forEach(updateHash);
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	}
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	disconnect() {
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		this.dependencies.forEach(disconnect);
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		this.blocks.forEach(disconnect);
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		this.variables.forEach(disconnect);
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	}
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	unseal() {
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		this.blocks.forEach(unseal);
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	}
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	hasDependencies(filter) {
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		if(filter) {
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			if(this.dependencies.some(filter)) {
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				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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		return this.blocks.concat(this.variables).some(item => item.hasDependencies(filter));
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	}
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	sortItems() {
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		this.blocks.forEach(block => block.sortItems());
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	}
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}
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module.exports = DependenciesBlock;
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