15 lines
		
	
	
		
			473 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			15 lines
		
	
	
		
			473 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
'use strict';
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var weak = require('./_collection-weak');
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var validate = require('./_validate-collection');
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var WEAK_SET = 'WeakSet';
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// 23.4 WeakSet Objects
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require('./_collection')(WEAK_SET, function (get) {
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  return function WeakSet() { return get(this, arguments.length > 0 ? arguments[0] : undefined); };
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}, {
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  // 23.4.3.1 WeakSet.prototype.add(value)
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  add: function add(value) {
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    return weak.def(validate(this, WEAK_SET), value, true);
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  }
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}, weak, false, true);
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