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			88 lines
		
	
	
		
			3.0 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			88 lines
		
	
	
		
			3.0 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
// This file was procedurally generated from the following sources:
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// - src/dstr-binding/ary-ptrn-rest-id-elision.case
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// - src/dstr-binding/default/cls-expr-meth-static-dflt.template
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/*---
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description: Rest element following elision elements (static class expression method (default parameter))
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esid: sec-class-definitions-runtime-semantics-evaluation
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es6id: 14.5.16
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features: [destructuring-binding, default-parameters]
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flags: [generated]
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info: |
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    ClassExpression : class BindingIdentifieropt ClassTail
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    1. If BindingIdentifieropt is not present, let className be undefined.
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    2. Else, let className be StringValue of BindingIdentifier.
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    3. Let value be the result of ClassDefinitionEvaluation of ClassTail
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       with argument className.
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    [...]
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    14.5.14 Runtime Semantics: ClassDefinitionEvaluation
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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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        b. Else,
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           Let status be the result of performing PropertyDefinitionEvaluation for
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           m with arguments F and false.
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    [...]
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    14.3.8 Runtime Semantics: DefineMethod
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    MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
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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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    9.2.1 [[Call]] ( thisArgument, argumentsList)
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    [...]
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    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
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    [...]
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    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
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    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
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    [...]
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    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
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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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    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
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    ArrayBindingPattern : [ Elisionopt BindingRestElement ]
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    1. If Elision is present, then
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       a. Let status be the result of performing
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          IteratorDestructuringAssignmentEvaluation of Elision with
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          iteratorRecord as the argument.
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       b. ReturnIfAbrupt(status).
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    2. Return the result of performing IteratorBindingInitialization for
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       BindingRestElement with iteratorRecord and environment as arguments.
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---*/
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var values = [1, 2, 3, 4, 5];
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var callCount = 0;
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var C = class {
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  static method([ , , ...x] = values) {
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    assert(Array.isArray(x));
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    assert.sameValue(x.length, 3);
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    assert.sameValue(x[0], 3);
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    assert.sameValue(x[1], 4);
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    assert.sameValue(x[2], 5);
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    assert.notSameValue(x, values);
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    callCount = callCount + 1;
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  }
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};
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C.method();
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assert.sameValue(callCount, 1, 'method invoked exactly once');
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