36 lines
		
	
	
		
			537 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			36 lines
		
	
	
		
			537 B
		
	
	
	
		
			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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| 
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| module.exports = class TrackingSet {
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| 	constructor(set) {
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| 		this.set = set;
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| 		this.set2 = new Set();
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| 		this.stack = set.stack;
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| 	}
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| 
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| 	add(item) {
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| 		this.set2.add(item);
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| 		return this.set.add(item);
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| 	}
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| 
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| 	delete(item) {
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| 		this.set2.delete(item);
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| 		return this.set.delete(item);
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| 	}
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| 
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| 	has(item) {
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| 		return this.set.has(item);
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| 	}
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| 
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| 	createChild() {
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| 		return this.set.createChild();
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| 	}
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| 
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| 	getAddedItems() {
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| 		return this.set2;
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| 	}
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| };
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