mirror of https://github.com/tc39/test262.git
61 lines
1.8 KiB
JavaScript
61 lines
1.8 KiB
JavaScript
// This file was procedurally generated from the following sources:
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// - src/function-forms/params-trailing-comma-multiple.case
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// - src/function-forms/default/gen-func-decl.template
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/*---
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description: A trailing comma should not increase the respective length, using multiple parameters (generator function declaration)
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esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
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features: [generators]
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flags: [generated]
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info: |
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GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
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[...]
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2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
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GeneratorBody, scope, strict).
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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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Trailing comma in the parameters list
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14.1 Function Definitions
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FormalParameters[Yield, Await] : FormalParameterList[?Yield, ?Await] ,
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---*/
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var callCount = 0;
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// Stores a reference `ref` for case evaluation
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function* ref(a, b,) {
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assert.sameValue(a, 42);
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assert.sameValue(b, 39);
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callCount = callCount + 1;
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}
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ref(42, 39, 1).next();
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assert.sameValue(callCount, 1, 'generator function invoked exactly once');
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assert.sameValue(ref.length, 2, 'length is properly set');
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