dflt-params-trailing-comma.js (2649B)
1 // This file was procedurally generated from the following sources: 2 // - src/function-forms/dflt-params-trailing-comma.case 3 // - src/function-forms/default/cls-expr-meth-static.template 4 /*--- 5 description: A trailing comma should not increase the respective length, using default parameters (static class expression method) 6 esid: sec-class-definitions-runtime-semantics-evaluation 7 flags: [generated] 8 info: | 9 ClassExpression : class BindingIdentifieropt ClassTail 10 11 1. If BindingIdentifieropt is not present, let className be undefined. 12 2. Else, let className be StringValue of BindingIdentifier. 13 3. Let value be the result of ClassDefinitionEvaluation of ClassTail 14 with argument className. 15 [...] 16 17 14.5.14 Runtime Semantics: ClassDefinitionEvaluation 18 19 21. For each ClassElement m in order from methods 20 a. If IsStatic of m is false, then 21 b. Else, 22 Let status be the result of performing PropertyDefinitionEvaluation for 23 m with arguments F and false. 24 [...] 25 26 14.3.8 Runtime Semantics: DefineMethod 27 28 MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody } 29 30 [...] 31 6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody, 32 scope, strict). If functionPrototype was passed as a parameter then pass its 33 value as the functionPrototype optional argument of FunctionCreate. 34 [...] 35 36 9.2.1 [[Call]] ( thisArgument, argumentsList) 37 38 [...] 39 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). 40 [...] 41 42 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) 43 44 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). 45 [...] 46 47 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) 48 49 [...] 50 23. Let iteratorRecord be Record {[[iterator]]: 51 CreateListIterator(argumentsList), [[done]]: false}. 52 24. If hasDuplicates is true, then 53 [...] 54 25. Else, 55 b. Let formalStatus be IteratorBindingInitialization for formals with 56 iteratorRecord and env as arguments. 57 [...] 58 59 Trailing comma in the parameters list 60 61 14.1 Function Definitions 62 63 FormalParameters[Yield, Await] : FormalParameterList[?Yield, ?Await] , 64 ---*/ 65 66 var callCount = 0; 67 var C = class { 68 static method(a, b = 39,) { 69 assert.sameValue(a, 42); 70 assert.sameValue(b, 39); 71 callCount = callCount + 1; 72 } 73 }; 74 75 C.method(42, undefined, 1); 76 77 // Stores a reference `ref` for case evaluation 78 var ref = C.method; 79 80 assert.sameValue(callCount, 1, 'method invoked exactly once'); 81 82 assert.sameValue(ref.length, 1, 'length is properly set'); 83 84 reportCompare(0, 0);