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			26 lines
		
	
	
		
			694 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			26 lines
		
	
	
		
			694 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
// Copyright (C) 2015 the V8 project authors. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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esid: sec-weakset-iterable
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description: >
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  Throws TypeError if add is not callable on constructor call.
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info: |
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  23.4.1.1 WeakSet ( [ iterable ] )
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  ...
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  5. If iterable is not present, let iterable be undefined.
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  6. If iterable is either undefined or null, let iter be undefined.
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  7. Else,
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    a. Let adder be Get(set, "add").
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    b. ReturnIfAbrupt(adder).
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    c. If IsCallable(adder) is false, throw a TypeError exception.
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  ...
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---*/
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WeakSet.prototype.add = null;
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new WeakSet();
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assert.throws(TypeError, function() {
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  new WeakSet([]);
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});
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