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			47 lines
		
	
	
		
			1.3 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			47 lines
		
	
	
		
			1.3 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
| // This file was procedurally generated from the following sources:
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| // - src/dstr-binding/ary-ptrn-elem-obj-val-undef.case
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| // - src/dstr-binding/error/async-gen-func-named-expr.template
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| /*---
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| description: Nested object destructuring with a value of `undefined` (async generator named function expression)
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| esid: sec-asyncgenerator-definitions-evaluation
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| features: [async-iteration]
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| flags: [generated]
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| info: |
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|     AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
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|         ( FormalParameters ) { AsyncGeneratorBody }
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| 
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|         [...]
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|         7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
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|            AsyncGeneratorBody, funcEnv, strict).
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|         [...]
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| 
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|     13.3.3.6 Runtime Semantics: IteratorBindingInitialization
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| 
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|     BindingElement : BindingPattern Initializeropt
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| 
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|     1. If iteratorRecord.[[done]] is false, then
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|        [...]
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|        e. Else
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|           i. Let v be IteratorValue(next).
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|           [...]
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|     4. Return the result of performing BindingInitialization of BindingPattern
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|        with v and environment as the arguments.
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| 
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|     13.3.3.5 Runtime Semantics: BindingInitialization
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| 
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|     BindingPattern : ObjectBindingPattern
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| 
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|     1. Let valid be RequireObjectCoercible(value).
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|     2. ReturnIfAbrupt(valid).
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| ---*/
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| 
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| 
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| var f;
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| f = async function* g([{ x }]) {
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|   
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| };
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| 
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| assert.throws(TypeError, function() {
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|   f([]);
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| });
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