tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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params-trailing-comma-single.js (2529B)

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