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			50 lines
		
	
	
		
			1.6 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			50 lines
		
	
	
		
			1.6 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
// This file was procedurally generated from the following sources:
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// - src/dstr-binding/obj-ptrn-prop-obj-value-null.case
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// - src/dstr-binding/error/for-of-var.template
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/*---
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description: Object binding pattern with "nested" object binding pattern taking the `null` value (for-of statement)
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esid: sec-for-in-and-for-of-statements-runtime-semantics-labelledevaluation
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es6id: 13.7.5.11
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features: [destructuring-binding]
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flags: [generated]
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info: |
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    IterationStatement :
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        for ( var ForBinding of AssignmentExpression ) Statement
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    [...]
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    3. Return ForIn/OfBodyEvaluation(ForBinding, Statement, keyResult,
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       varBinding, labelSet).
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    13.7.5.13 Runtime Semantics: ForIn/OfBodyEvaluation
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    [...]
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    3. Let destructuring be IsDestructuring of lhs.
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    [...]
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    5. Repeat
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       [...]
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       h. If destructuring is false, then
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          [...]
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       i. Else
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          i. If lhsKind is assignment, then
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             [...]
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          ii. Else if lhsKind is varBinding, then
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              1. Assert: lhs is a ForBinding.
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              2. Let status be the result of performing BindingInitialization
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                 for lhs passing nextValue and undefined as the arguments.
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          [...]
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    13.3.3.7 Runtime Semantics: KeyedBindingInitialization
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    [...]
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    3. If Initializer is present and v is undefined, then
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       [...]
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    4. Return the result of performing BindingInitialization for BindingPattern
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       passing v and environment as arguments.
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---*/
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assert.throws(TypeError, function() {
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  for (var { w: { x, y, z } = { x: 4, y: 5, z: 6 } } of [{ w: null }]) {
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    return;
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  }
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});
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