async-gen-meth-rest-params-trailing-comma-early-error.js (1511B)
1 // |reftest| error:SyntaxError 2 // This file was procedurally generated from the following sources: 3 // - src/function-forms/rest-params-trailing-comma-early-error.case 4 // - src/function-forms/syntax/async-gen-meth.template 5 /*--- 6 description: It's a syntax error if a FunctionRestParameter is followed by a trailing comma (async generator method) 7 esid: sec-asyncgenerator-definitions-propertydefinitionevaluation 8 features: [async-iteration] 9 flags: [generated] 10 negative: 11 phase: parse 12 type: SyntaxError 13 info: | 14 AsyncGeneratorMethod : 15 async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) 16 { AsyncGeneratorBody } 17 18 1. Let propKey be the result of evaluating PropertyName. 19 2. ReturnIfAbrupt(propKey). 20 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true. 21 Otherwise let strict be false. 22 4. Let scope be the running execution context's LexicalEnvironment. 23 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters, 24 AsyncGeneratorBody, scope, strict). 25 [...] 26 27 28 Trailing comma in the parameters list 29 30 14.1 Function Definitions 31 32 FormalParameters[Yield, Await] : 33 [empty] 34 FunctionRestParameter[?Yield, ?Await] 35 FormalParameterList[?Yield, ?Await] 36 FormalParameterList[?Yield, ?Await] , 37 FormalParameterList[?Yield, ?Await] , FunctionRestParameter[?Yield, ?Await] 38 ---*/ 39 $DONOTEVALUATE(); 40 41 0, { 42 async *method(...a,) { 43 44 } 45 };