tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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meth-ary-ptrn-rest-obj-prop-id.js (2245B)

      1 // This file was procedurally generated from the following sources:
      2 // - src/dstr-binding/ary-ptrn-rest-obj-prop-id.case
      3 // - src/dstr-binding/default/meth.template
      4 /*---
      5 description: Rest element containing an object binding pattern (method)
      6 esid: sec-runtime-semantics-definemethod
      7 features: [destructuring-binding]
      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    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
     43 
     44    BindingRestElement : ... BindingPattern
     45 
     46    1. Let A be ArrayCreate(0).
     47    [...]
     48    3. Repeat
     49       [...]
     50       b. If iteratorRecord.[[done]] is true, then
     51          i. Return the result of performing BindingInitialization of
     52             BindingPattern with A and environment as the arguments.
     53       [...]
     54 ---*/
     55 let length = "outer";
     56 
     57 var callCount = 0;
     58 var obj = {
     59  method([...{ 0: v, 1: w, 2: x, 3: y, length: z }]) {
     60    assert.sameValue(v, 7);
     61    assert.sameValue(w, 8);
     62    assert.sameValue(x, 9);
     63    assert.sameValue(y, undefined);
     64    assert.sameValue(z, 3);
     65 
     66    assert.sameValue(length, "outer", "the length prop is not set as a binding name");
     67    callCount = callCount + 1;
     68  }
     69 };
     70 
     71 obj.method([7, 8, 9]);
     72 assert.sameValue(callCount, 1, 'method invoked exactly once');
     73 
     74 reportCompare(0, 0);