tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
Log | Files | Refs | README | LICENSE

dflt-ary-ptrn-elem-id-iter-val.js (2348B)

      1 // This file was procedurally generated from the following sources:
      2 // - src/dstr-binding/ary-ptrn-elem-id-iter-val.case
      3 // - src/dstr-binding/default/func-expr-dflt.template
      4 /*---
      5 description: SingleNameBinding when value iteration was completed previously (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    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
     41 
     42    SingleNameBinding : BindingIdentifier Initializeropt
     43 
     44    [...]
     45    4. If iteratorRecord.[[done]] is false, then
     46       a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
     47       b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
     48       c. ReturnIfAbrupt(next).
     49       d. If next is false, set iteratorRecord.[[done]] to true.
     50       e. Else,
     51          [...]
     52          i. Let v be IteratorValue(next).
     53          ii. If v is an abrupt completion, set
     54              iteratorRecord.[[done]] to true.
     55          iii. ReturnIfAbrupt(v).
     56    5. If iteratorRecord.[[done]] is true, let v be undefined.
     57    [...]
     58    8. Return InitializeReferencedBinding(lhs, v).
     59 ---*/
     60 
     61 var callCount = 0;
     62 var f;
     63 f = function([x, y, z] = [1, 2, 3]) {
     64  assert.sameValue(x, 1);
     65  assert.sameValue(y, 2);
     66  assert.sameValue(z, 3);
     67  callCount = callCount + 1;
     68 };
     69 
     70 f();
     71 assert.sameValue(callCount, 1, 'function invoked exactly once');
     72 
     73 reportCompare(0, 0);