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39 lines
1.2 KiB
JavaScript
39 lines
1.2 KiB
JavaScript
// This file was procedurally generated from the following sources:
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// - src/arguments/args-trailing-comma-null.case
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// - src/arguments/default/async-gen-func-decl.template
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/*---
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description: A trailing comma after null should not increase the arguments.length (async generator function declaration)
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esid: sec-asyncgenerator-definitions-instantiatefunctionobject
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features: [async-iteration]
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flags: [generated, async]
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info: |
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AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
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( FormalParameters ) { AsyncGeneratorBody }
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[...]
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3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
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scope, strict).
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[...]
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Trailing comma in the arguments list
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12.3 Left-Hand-Side Expressions
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Arguments[Yield, Await] : ( ArgumentList[?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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async function* ref() {
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assert.sameValue(arguments.length, 2);
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assert.sameValue(arguments[0], 42);
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assert.sameValue(arguments[1], null);
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callCount = callCount + 1;
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}
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ref(42, null,).next().then(() => {
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assert.sameValue(callCount, 1, 'generator function invoked exactly once');
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}).then($DONE, $DONE);
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