tor-browser

The Tor Browser
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gen-meth-dflt-ary-ptrn-elem-ary-val-null.js (2329B)

      1 // This file was procedurally generated from the following sources:
      2 // - src/dstr-binding/ary-ptrn-elem-ary-val-null.case
      3 // - src/dstr-binding/error/gen-meth-dflt.template
      4 /*---
      5 description: Nested array destructuring with a null value (generator method (default parameter))
      6 esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
      7 features: [generators, destructuring-binding, default-parameters]
      8 flags: [generated]
      9 info: |
     10    GeneratorMethod :
     11        * PropertyName ( StrictFormalParameters ) { GeneratorBody }
     12 
     13    1. Let propKey be the result of evaluating PropertyName.
     14    2. ReturnIfAbrupt(propKey).
     15    3. If the function code for this GeneratorMethod is strict mode code,
     16       let strict be true. Otherwise let strict be false.
     17    4. Let scope be the running execution context's LexicalEnvironment.
     18    5. Let closure be GeneratorFunctionCreate(Method,
     19       StrictFormalParameters, GeneratorBody, scope, strict).
     20    [...]
     21 
     22    9.2.1 [[Call]] ( thisArgument, argumentsList)
     23 
     24    [...]
     25    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
     26    [...]
     27 
     28    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
     29 
     30    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
     31    [...]
     32 
     33    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
     34 
     35    [...]
     36    23. Let iteratorRecord be Record {[[iterator]]:
     37        CreateListIterator(argumentsList), [[done]]: false}.
     38    24. If hasDuplicates is true, then
     39        [...]
     40    25. Else,
     41        b. Let formalStatus be IteratorBindingInitialization for formals with
     42           iteratorRecord and env as arguments.
     43    [...]
     44 
     45    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
     46 
     47    BindingElement : BindingPattern Initializeropt
     48 
     49    1. If iteratorRecord.[[done]] is false, then
     50       [...]
     51       e. Else
     52          i. Let v be IteratorValue(next).
     53          [...]
     54    4. Return the result of performing BindingInitialization of BindingPattern
     55       with v and environment as the arguments.
     56 
     57    13.3.3.5 Runtime Semantics: BindingInitialization
     58 
     59    BindingPattern : ArrayBindingPattern
     60 
     61    1. Let iterator be GetIterator(value).
     62    2. ReturnIfAbrupt(iterator).
     63 ---*/
     64 
     65 var obj = {
     66  *method([[x]] = [null]) {}
     67 };
     68 
     69 assert.throws(TypeError, function() {
     70  obj.method();
     71 });
     72 
     73 reportCompare(0, 0);