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			58 lines
		
	
	
		
			1.6 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			58 lines
		
	
	
		
			1.6 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
| // This file was procedurally generated from the following sources:
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| // - src/dstr-binding/obj-ptrn-rest-getter.case
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| // - src/dstr-binding/default/arrow-function.template
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| /*---
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| description: Getter is called when obj is being deconstructed to a rest Object (arrow function expression)
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| esid: sec-arrow-function-definitions-runtime-semantics-evaluation
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| features: [object-rest, destructuring-binding]
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| flags: [generated]
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| includes: [propertyHelper.js]
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| info: |
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|     ArrowFunction : ArrowParameters => ConciseBody
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| 
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|     [...]
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|     4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
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|     [...]
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| 
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|     9.2.1 [[Call]] ( thisArgument, argumentsList)
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| 
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|     [...]
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|     7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
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|     [...]
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| 
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|     9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
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| 
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|     1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
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|     [...]
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| 
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|     9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
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| 
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|     [...]
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|     23. Let iteratorRecord be Record {[[iterator]]:
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|         CreateListIterator(argumentsList), [[done]]: false}.
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|     24. If hasDuplicates is true, then
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|         [...]
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|     25. Else,
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|         b. Let formalStatus be IteratorBindingInitialization for formals with
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|            iteratorRecord and env as arguments.
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|     [...]
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| ---*/
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| var count = 0;
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| 
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| var callCount = 0;
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| var f;
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| f = ({...x}) => {
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|   assert.sameValue(count, 1);
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| 
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|   verifyProperty(x, "v", {
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|     enumerable: true,
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|     writable: true,
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|     configurable: true,
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|     value: 2
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|   });
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|   callCount = callCount + 1;
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| };
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| 
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| f({ get v() { count++; return 2; } });
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| assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
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