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			83 lines
		
	
	
		
			2.7 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			83 lines
		
	
	
		
			2.7 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
| // This file was procedurally generated from the following sources:
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| // - src/dstr-binding/obj-ptrn-id-init-fn-name-arrow.case
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| // - src/dstr-binding/default/cls-decl-meth.template
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| /*---
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| description: SingleNameBinding assigns `name` to arrow functions (class expression method)
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| esid: sec-runtime-semantics-bindingclassdeclarationevaluation
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| features: [destructuring-binding]
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| flags: [generated]
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| info: |
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|     ClassDeclaration : class BindingIdentifier ClassTail
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| 
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|     1. Let className be StringValue of BindingIdentifier.
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|     2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
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|        argument className.
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|     [...]
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| 
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|     14.5.14 Runtime Semantics: ClassDefinitionEvaluation
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| 
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|     21. For each ClassElement m in order from methods
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|         a. If IsStatic of m is false, then
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|            i. Let status be the result of performing
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|               PropertyDefinitionEvaluation for m with arguments proto and
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|               false.
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|         [...]
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| 
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|     14.3.8 Runtime Semantics: DefineMethod
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| 
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|     MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
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| 
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|     [...]
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|     6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
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|        scope, strict). If functionPrototype was passed as a parameter then pass its
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|        value as the functionPrototype optional argument of FunctionCreate.
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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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|     13.3.3.7 Runtime Semantics: KeyedBindingInitialization
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| 
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|     SingleNameBinding : BindingIdentifier Initializeropt
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| 
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|     [...]
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|     6. If Initializer is present and v is undefined, then
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|        [...]
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|        d. If IsAnonymousFunctionDefinition(Initializer) is true, then
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|           i. Let hasNameProperty be HasOwnProperty(v, "name").
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|           ii. ReturnIfAbrupt(hasNameProperty).
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|           iii. If hasNameProperty is false, perform SetFunctionName(v,
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|                bindingId).
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| ---*/
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| 
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| var callCount = 0;
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| class C {
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|   method({ arrow = () => {} }) {
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|     assert.sameValue(arrow.name, 'arrow');
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|     callCount = callCount + 1;
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|   }
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| };
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| 
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| new C().method({});
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| assert.sameValue(callCount, 1, 'method invoked exactly once');
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