tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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dflt-obj-ptrn-prop-id-get-value-err.js (1857B)

      1 // This file was procedurally generated from the following sources:
      2 // - src/dstr-binding/obj-ptrn-prop-id-get-value-err.case
      3 // - src/dstr-binding/error/func-expr-dflt.template
      4 /*---
      5 description: Error thrown when accessing the corresponding property of the value object (function expression (default parameter))
      6 esid: sec-function-definitions-runtime-semantics-evaluation
      7 features: [destructuring-binding, default-parameters]
      8 flags: [generated]
      9 info: |
     10    FunctionExpression : function ( FormalParameters ) { FunctionBody }
     11 
     12        [...]
     13        3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
     14           scope, strict).
     15        [...]
     16 
     17    9.2.1 [[Call]] ( thisArgument, argumentsList)
     18 
     19    [...]
     20    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
     21    [...]
     22 
     23    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
     24 
     25    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
     26    [...]
     27 
     28    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
     29 
     30    [...]
     31    23. Let iteratorRecord be Record {[[iterator]]:
     32        CreateListIterator(argumentsList), [[done]]: false}.
     33    24. If hasDuplicates is true, then
     34        [...]
     35    25. Else,
     36        b. Let formalStatus be IteratorBindingInitialization for formals with
     37           iteratorRecord and env as arguments.
     38    [...]
     39 
     40    13.3.3.7 Runtime Semantics: KeyedBindingInitialization
     41 
     42    BindingElement : BindingPattern Initializeropt
     43 
     44    1. Let v be GetV(value, propertyName).
     45    2. ReturnIfAbrupt(v).
     46 ---*/
     47 var initEvalCount = 0;
     48 var poisonedProperty = Object.defineProperty({}, 'poisoned', {
     49  get: function() {
     50    throw new Test262Error();
     51  }
     52 });
     53 
     54 var f = function({ poisoned: x = ++initEvalCount } = poisonedProperty) {};
     55 
     56 assert.throws(Test262Error, function() {
     57  f();
     58 });
     59 
     60 assert.sameValue(initEvalCount, 0);
     61 
     62 reportCompare(0, 0);