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Diffstat (limited to '')
-rw-r--r-- | js/src/tests/test262/language/statements/async-generator/dflt-params-trailing-comma.js | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/async-generator/dflt-params-trailing-comma.js b/js/src/tests/test262/language/statements/async-generator/dflt-params-trailing-comma.js new file mode 100644 index 0000000000..f5e049aeda --- /dev/null +++ b/js/src/tests/test262/language/statements/async-generator/dflt-params-trailing-comma.js @@ -0,0 +1,40 @@ +// |reftest| async +// This file was procedurally generated from the following sources: +// - src/function-forms/dflt-params-trailing-comma.case +// - src/function-forms/default/async-gen-func-decl.template +/*--- +description: A trailing comma should not increase the respective length, using default parameters (async generator function declaration) +esid: sec-asyncgenerator-definitions-instantiatefunctionobject +features: [async-iteration] +flags: [generated, async] +info: | + AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier + ( FormalParameters ) { AsyncGeneratorBody } + + [...] + 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody, + scope, strict). + [...] + + + Trailing comma in the parameters list + + 14.1 Function Definitions + + FormalParameters[Yield, Await] : FormalParameterList[?Yield, ?Await] , +---*/ + + +var callCount = 0; +// Stores a reference `ref` for case evaluation +async function* ref(a, b = 39,) { + assert.sameValue(a, 42); + assert.sameValue(b, 39); + callCount = callCount + 1; +} + +ref(42, undefined, 1).next().then(() => { + assert.sameValue(callCount, 1, 'generator function invoked exactly once'); +}).then($DONE, $DONE); + +assert.sameValue(ref.length, 1, 'length is properly set'); |