params-trailing-comma-multiple.js (2868B)
1 // This file was procedurally generated from the following sources: 2 // - src/function-forms/params-trailing-comma-multiple.case 3 // - src/function-forms/default/cls-expr-gen-meth-static.template 4 /*--- 5 description: A trailing comma should not increase the respective length, using multiple parameters (static class expression generator method) 6 esid: sec-class-definitions-runtime-semantics-evaluation 7 features: [generators] 8 flags: [generated] 9 info: | 10 ClassExpression : class BindingIdentifieropt ClassTail 11 12 1. If BindingIdentifieropt is not present, let className be undefined. 13 2. Else, let className be StringValue of BindingIdentifier. 14 3. Let value be the result of ClassDefinitionEvaluation of ClassTail 15 with argument className. 16 [...] 17 18 14.5.14 Runtime Semantics: ClassDefinitionEvaluation 19 20 21. For each ClassElement m in order from methods 21 a. If IsStatic of m is false, then 22 b. Else, 23 Let status be the result of performing PropertyDefinitionEvaluation 24 for m with arguments F and false. 25 [...] 26 27 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation 28 29 GeneratorMethod : 30 * PropertyName ( StrictFormalParameters ) { GeneratorBody } 31 32 1. Let propKey be the result of evaluating PropertyName. 33 2. ReturnIfAbrupt(propKey). 34 3. If the function code for this GeneratorMethod is strict mode code, 35 let strict be true. Otherwise let strict be false. 36 4. Let scope be the running execution context's LexicalEnvironment. 37 5. Let closure be GeneratorFunctionCreate(Method, 38 StrictFormalParameters, GeneratorBody, scope, strict). 39 40 9.2.1 [[Call]] ( thisArgument, argumentsList) 41 42 [...] 43 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). 44 [...] 45 46 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) 47 48 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). 49 [...] 50 51 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) 52 53 [...] 54 23. Let iteratorRecord be Record {[[iterator]]: 55 CreateListIterator(argumentsList), [[done]]: false}. 56 24. If hasDuplicates is true, then 57 [...] 58 25. Else, 59 b. Let formalStatus be IteratorBindingInitialization for formals with 60 iteratorRecord and env as arguments. 61 [...] 62 63 64 Trailing comma in the parameters list 65 66 14.1 Function Definitions 67 68 FormalParameters[Yield, Await] : FormalParameterList[?Yield, ?Await] , 69 ---*/ 70 71 var callCount = 0; 72 var C = class { 73 static *method(a, b,) { 74 assert.sameValue(a, 42); 75 assert.sameValue(b, 39); 76 callCount = callCount + 1; 77 } 78 }; 79 80 C.method(42, 39, 1).next(); 81 82 // Stores a reference `ref` for case evaluation 83 var ref = C.method; 84 85 assert.sameValue(callCount, 1, 'method invoked exactly once'); 86 87 assert.sameValue(ref.length, 2, 'length is properly set'); 88 89 reportCompare(0, 0);