// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-elem-id-iter-val-array-prototype.case
// - src/dstr-binding/default/for-of-let.template
/*---
description: Array destructuring uses overriden Array.prototype[Symbol.iterator] (for-of statement)
esid: sec-for-in-and-for-of-statements-runtime-semantics-labelledevaluation
features: [Symbol.iterator, generators, destructuring-binding]
flags: [generated]
info: |
    IterationStatement :
        for ( ForDeclaration of AssignmentExpression ) Statement

    [...]
    3. Return ForIn/OfBodyEvaluation(ForDeclaration, Statement, keyResult,
       lexicalBinding, labelSet).

    13.7.5.13 Runtime Semantics: ForIn/OfBodyEvaluation

    [...]
    3. Let destructuring be IsDestructuring of lhs.
    [...]
    5. Repeat
       [...]
       h. If destructuring is false, then
          [...]
       i. Else
          i. If lhsKind is assignment, then
             [...]
          ii. Else if lhsKind is varBinding, then
              [...]
          iii. Else,
               1. Assert: lhsKind is lexicalBinding.
               2. Assert: lhs is a ForDeclaration.
               3. Let status be the result of performing BindingInitialization
                  for lhs passing nextValue and iterationEnv as arguments.
          [...]

    Runtime Semantics: IteratorBindingInitialization

    SingleNameBinding : BindingIdentifier Initializer_opt

    1. Let bindingId be StringValue of BindingIdentifier.
    2. Let lhs be ? ResolveBinding(bindingId, environment).
    3. If iteratorRecord.[[Done]] is false, then
        a. Let next be IteratorStep(iteratorRecord).
        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).
    [...]
    7. Return InitializeReferencedBinding(lhs, v).

---*/
Array.prototype[Symbol.iterator] = function* () {
    if (this.length > 0) {
        yield this[0];
    }
    if (this.length > 1) {
        yield this[1];
    }
    if (this.length > 2) {
        yield 42;
    }
};

var iterCount = 0;

for (let [x, y, z] of [[1, 2, 3]]) {
  assert.sameValue(x, 1);
  assert.sameValue(y, 2);
  assert.sameValue(z, 42);

  iterCount += 1;
}

assert.sameValue(iterCount, 1, 'Iteration occurred as expected');