tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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meth-dflt-params-ref-prior.js (2272B)

      1 // This file was procedurally generated from the following sources:
      2 // - src/function-forms/dflt-params-ref-prior.case
      3 // - src/function-forms/default/meth.template
      4 /*---
      5 description: Referencing a parameter that occurs earlier in the ParameterList (method)
      6 esid: sec-runtime-semantics-definemethod
      7 features: [default-parameters]
      8 flags: [generated]
      9 info: |
     10    MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
     11 
     12    [...]
     13    6. Let closure be FunctionCreate(kind, StrictFormalParameters,
     14       FunctionBody, scope, strict). If functionPrototype was passed as a
     15       parameter then pass its value as the functionPrototype optional argument
     16       of FunctionCreate.
     17    [...]
     18 
     19    9.2.1 [[Call]] ( thisArgument, argumentsList)
     20 
     21    [...]
     22    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
     23    [...]
     24 
     25    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
     26 
     27    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
     28    [...]
     29 
     30    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
     31 
     32    [...]
     33    23. Let iteratorRecord be Record {[[iterator]]:
     34        CreateListIterator(argumentsList), [[done]]: false}.
     35    24. If hasDuplicates is true, then
     36        [...]
     37    25. Else,
     38        b. Let formalStatus be IteratorBindingInitialization for formals with
     39           iteratorRecord and env as arguments.
     40    [...]
     41 
     42    14.1.19 Runtime Semantics: IteratorBindingInitialization
     43 
     44    FormalsList : FormalsList , FormalParameter
     45 
     46    1. Let status be the result of performing IteratorBindingInitialization for
     47       FormalsList using iteratorRecord and environment as the arguments.
     48    2. ReturnIfAbrupt(status).
     49    3. Return the result of performing IteratorBindingInitialization for
     50       FormalParameter using iteratorRecord and environment as the arguments.
     51 
     52 ---*/
     53 var x = 0;
     54 
     55 var callCount = 0;
     56 var obj = {
     57  method(x, y = x, z = y) {
     58    assert.sameValue(x, 3, 'first argument value');
     59    assert.sameValue(y, 3, 'second argument value');
     60    assert.sameValue(z, 3, 'third argument value');
     61    callCount = callCount + 1;
     62  }
     63 };
     64 
     65 obj.method(3);
     66 
     67 // Stores a reference `ref` for case evaluation
     68 var ref = obj.method;
     69 
     70 assert.sameValue(callCount, 1, 'method invoked exactly once');
     71 
     72 reportCompare(0, 0);