tor-browser

The Tor Browser
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meth-static-ary-ptrn-rest-ary-elision.js (3492B)

      1 // This file was procedurally generated from the following sources:
      2 // - src/dstr-binding/ary-ptrn-rest-ary-elision.case
      3 // - src/dstr-binding/default/cls-expr-meth-static.template
      4 /*---
      5 description: Rest element containing an elision (static class expression method)
      6 esid: sec-class-definitions-runtime-semantics-evaluation
      7 features: [generators, destructuring-binding]
      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 for
     24           m with arguments F and false.
     25    [...]
     26 
     27    14.3.8 Runtime Semantics: DefineMethod
     28 
     29    MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
     30 
     31    [...]
     32    6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
     33       scope, strict). If functionPrototype was passed as a parameter then pass its
     34       value as the functionPrototype optional argument of FunctionCreate.
     35    [...]
     36 
     37    9.2.1 [[Call]] ( thisArgument, argumentsList)
     38 
     39    [...]
     40    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
     41    [...]
     42 
     43    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
     44 
     45    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
     46    [...]
     47 
     48    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
     49 
     50    [...]
     51    23. Let iteratorRecord be Record {[[iterator]]:
     52        CreateListIterator(argumentsList), [[done]]: false}.
     53    24. If hasDuplicates is true, then
     54        [...]
     55    25. Else,
     56        b. Let formalStatus be IteratorBindingInitialization for formals with
     57           iteratorRecord and env as arguments.
     58    [...]
     59 
     60    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
     61 
     62    BindingRestElement : ... BindingPattern
     63 
     64    1. Let A be ArrayCreate(0).
     65    [...]
     66    3. Repeat
     67       [...]
     68       b. If iteratorRecord.[[done]] is true, then
     69          i. Return the result of performing BindingInitialization of
     70             BindingPattern with A and environment as the arguments.
     71       [...]
     72 
     73    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
     74 
     75    ArrayBindingPattern : [ Elision ]
     76 
     77    1. Return the result of performing
     78       IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
     79       as the argument.
     80 
     81    12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
     82 
     83    Elision : ,
     84 
     85    1. If iteratorRecord.[[done]] is false, then
     86       a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
     87       b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
     88       c. ReturnIfAbrupt(next).
     89       d. If next is false, set iteratorRecord.[[done]] to true.
     90    2. Return NormalCompletion(empty).
     91 
     92 ---*/
     93 var first = 0;
     94 var second = 0;
     95 function* g() {
     96  first += 1;
     97  yield;
     98  second += 1;
     99 };
    100 
    101 var callCount = 0;
    102 var C = class {
    103  static method([...[,]]) {
    104    assert.sameValue(first, 1);
    105    assert.sameValue(second, 1);
    106    callCount = callCount + 1;
    107  }
    108 };
    109 
    110 C.method(g());
    111 assert.sameValue(callCount, 1, 'method invoked exactly once');
    112 
    113 reportCompare(0, 0);