tor-browser

The Tor Browser
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meth-ary-ptrn-elem-id-iter-val-err.js (3021B)

      1 // This file was procedurally generated from the following sources:
      2 // - src/dstr-binding/ary-ptrn-elem-id-iter-val-err.case
      3 // - src/dstr-binding/error/cls-decl-meth.template
      4 /*---
      5 description: Error forwarding when IteratorValue returns an abrupt completion (class expression method)
      6 esid: sec-runtime-semantics-bindingclassdeclarationevaluation
      7 features: [Symbol.iterator, destructuring-binding]
      8 flags: [generated]
      9 info: |
     10    ClassDeclaration : class BindingIdentifier ClassTail
     11 
     12    1. Let className be StringValue of BindingIdentifier.
     13    2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
     14       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           i. Let status be the result of performing
     22              PropertyDefinitionEvaluation for m with arguments proto and
     23              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    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
     60 
     61    SingleNameBinding : BindingIdentifier Initializeropt
     62 
     63    [...]
     64    4. If iteratorRecord.[[done]] is false, then
     65       a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
     66       b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
     67       c. ReturnIfAbrupt(next).
     68       d. If next is false, set iteratorRecord.[[done]] to true.
     69       e. Else,
     70          i. Let v be IteratorValue(next).
     71          ii. If v is an abrupt completion, set iteratorRecord.[[done]] to
     72              true.
     73          iii. ReturnIfAbrupt(v).
     74 
     75 ---*/
     76 var poisonedValue = Object.defineProperty({}, 'value', {
     77  get: function() {
     78    throw new Test262Error();
     79  }
     80 });
     81 var g = {};
     82 g[Symbol.iterator] = function() {
     83  return {
     84    next: function() {
     85      return poisonedValue;
     86    }
     87  };
     88 };
     89 
     90 class C {
     91  method([x]) {}
     92 };
     93 
     94 var c = new C();
     95 
     96 assert.throws(Test262Error, function() {
     97  c.method(g);
     98 });
     99 
    100 reportCompare(0, 0);