text: // This file was procedurally generated from the following sources:
  // - src/dstr-binding/ary-ptrn-elem-id-iter-val.case
  // - src/dstr-binding/default/arrow-function-dflt.template
  /*---
  description: SingleNameBinding when value iteration was completed previously (arrow function expression (default parameter))
  esid: sec-arrow-function-definitions-runtime-semantics-evaluation
  es6id: 14.2.16
  features: [destructuring-binding, default-parameters]
  flags: [generated]
  info: |
      ArrowFunction : ArrowParameters => ConciseBody
  
      [...]
      4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict).
      [...]
  
      9.2.1 [[Call]] ( thisArgument, argumentsList)
  
      [...]
      7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
      [...]
  
      9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
  
      1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
      [...]
  
      9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
  
      [...]
      23. Let iteratorRecord be Record {[[iterator]]:
          CreateListIterator(argumentsList), [[done]]: false}.
      24. If hasDuplicates is true, then
          [...]
      25. Else,
          b. Let formalStatus be IteratorBindingInitialization for formals with
             iteratorRecord and env as arguments.
      [...]
  
      13.3.3.6 Runtime Semantics: IteratorBindingInitialization
  
      SingleNameBinding : BindingIdentifier Initializeropt
  
      [...]
      4. If iteratorRecord.[[done]] is false, then
         a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
         b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
         c. ReturnIfAbrupt(next).
         d. If next is false, set iteratorRecord.[[done]] to true.
         e. Else,
            [...]
            i. Let v be IteratorValue(next).
            ii. If v is an abrupt completion, set
                iteratorRecord.[[done]] to true.
            iii. ReturnIfAbrupt(v).
      5. If iteratorRecord.[[done]] is true, let v be undefined.
      [...]
      8. Return InitializeReferencedBinding(lhs, v).
  ---*/
  
  var callCount = 0;
  var f;
  f = ([x, y, z] = [1, 2, 3]) => {
    assert.sameValue(x, 1);
    assert.sameValue(y, 2);
    assert.sameValue(z, 3);
    callCount = callCount + 1;
  };
  
  f();
  assert.sameValue(callCount, 1, 'arrow function invoked exactly once');
  