tor-browser

The Tor Browser
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rest-params-trailing-comma-early-error.js (2808B)

      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/cls-expr-gen-meth-static.template
      5 /*---
      6 description: It's a syntax error if a FunctionRestParameter is followed by a trailing comma (static class expression generator method)
      7 esid: sec-class-definitions-runtime-semantics-evaluation
      8 features: [generators]
      9 flags: [generated]
     10 negative:
     11  phase: parse
     12  type: SyntaxError
     13 info: |
     14    ClassExpression : class BindingIdentifieropt ClassTail
     15 
     16    1. If BindingIdentifieropt is not present, let className be undefined.
     17    2. Else, let className be StringValue of BindingIdentifier.
     18    3. Let value be the result of ClassDefinitionEvaluation of ClassTail
     19       with argument className.
     20    [...]
     21 
     22    14.5.14 Runtime Semantics: ClassDefinitionEvaluation
     23 
     24    21. For each ClassElement m in order from methods
     25        a. If IsStatic of m is false, then
     26        b. Else,
     27           Let status be the result of performing PropertyDefinitionEvaluation
     28           for m with arguments F and false.
     29    [...]
     30 
     31    14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
     32 
     33    GeneratorMethod :
     34        * PropertyName ( StrictFormalParameters ) { GeneratorBody }
     35 
     36    1. Let propKey be the result of evaluating PropertyName.
     37    2. ReturnIfAbrupt(propKey).
     38    3. If the function code for this GeneratorMethod is strict mode code,
     39       let strict be true. Otherwise let strict be false.
     40    4. Let scope be the running execution context's LexicalEnvironment.
     41    5. Let closure be GeneratorFunctionCreate(Method,
     42       StrictFormalParameters, GeneratorBody, scope, strict).
     43 
     44    9.2.1 [[Call]] ( thisArgument, argumentsList)
     45 
     46    [...]
     47    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
     48    [...]
     49 
     50    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
     51 
     52    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
     53    [...]
     54 
     55    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
     56 
     57    [...]
     58    23. Let iteratorRecord be Record {[[iterator]]:
     59        CreateListIterator(argumentsList), [[done]]: false}.
     60    24. If hasDuplicates is true, then
     61        [...]
     62    25. Else,
     63        b. Let formalStatus be IteratorBindingInitialization for formals with
     64           iteratorRecord and env as arguments.
     65    [...]
     66 
     67 
     68    Trailing comma in the parameters list
     69 
     70    14.1 Function Definitions
     71 
     72    FormalParameters[Yield, Await] :
     73        [empty]
     74        FunctionRestParameter[?Yield, ?Await]
     75        FormalParameterList[?Yield, ?Await]
     76        FormalParameterList[?Yield, ?Await] ,
     77        FormalParameterList[?Yield, ?Await] , FunctionRestParameter[?Yield, ?Await]
     78 ---*/
     79 $DONOTEVALUATE();
     80 
     81 0, class {
     82  static *method(...a,) {
     83    
     84  }
     85 };