tor-browser

The Tor Browser
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meth-static-obj-ptrn-prop-obj-init.js (2822B)

      1 // This file was procedurally generated from the following sources:
      2 // - src/dstr-binding/obj-ptrn-prop-obj-init.case
      3 // - src/dstr-binding/default/cls-decl-meth-static.template
      4 /*---
      5 description: Object binding pattern with "nested" object binding pattern using initializer (static class expression method)
      6 esid: sec-runtime-semantics-bindingclassdeclarationevaluation
      7 features: [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        b. Else,
     22           Let status be the result of performing PropertyDefinitionEvaluation for
     23           m with arguments F and 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    13.3.3.7 Runtime Semantics: KeyedBindingInitialization
     60 
     61    [...]
     62    3. If Initializer is present and v is undefined, then
     63       a. Let defaultValue be the result of evaluating Initializer.
     64       b. Let v be GetValue(defaultValue).
     65       c. ReturnIfAbrupt(v).
     66    4. Return the result of performing BindingInitialization for BindingPattern
     67       passing v and environment as arguments.
     68 ---*/
     69 
     70 var callCount = 0;
     71 class C {
     72  static method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } }) {
     73    assert.sameValue(x, 4);
     74    assert.sameValue(y, 5);
     75    assert.sameValue(z, 6);
     76 
     77    assert.throws(ReferenceError, function() {
     78      w;
     79    });
     80    callCount = callCount + 1;
     81  }
     82 };
     83 
     84 C.method({ w: undefined });
     85 assert.sameValue(callCount, 1, 'method invoked exactly once');
     86 
     87 reportCompare(0, 0);