text: // This file was procedurally generated from the following sources:
  // - src/dstr-binding-for-await/ary-ptrn-elem-ary-rest-iter.case
  // - src/dstr-binding-for-await/default/for-await-of-async-gen-const-async.template
  /*---
  description: BindingElement with array binding pattern and initializer is not used (for-await-of statement)
  esid: sec-for-in-and-for-of-statements-runtime-semantics-labelledevaluation
  features: [destructuring-binding, async-iteration]
  flags: [generated, async]
  info: |
      IterationStatement :
          for await ( ForDeclaration of AssignmentExpression ) Statement
  
      [...]
      2. Return ? ForIn/OfBodyEvaluation(ForDeclaration, Statement, keyResult,
          lexicalBinding, labelSet, async).
  
      13.7.5.13 Runtime Semantics: ForIn/OfBodyEvaluation
  
      [...]
      4. Let destructuring be IsDestructuring of lhs.
      [...]
      6. Repeat
         [...]
         j. If destructuring is false, then
            [...]
         k. 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.
            [...]
  
      13.3.3.6 Runtime Semantics: IteratorBindingInitialization
  
      BindingElement : BindingPattern Initializer_opt
  
      1. If iteratorRecord.[[done]] is false, then
         a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
         [...]
         e. Else,
            i. Let v be IteratorValue(next).
            [...]
      4. Return the result of performing BindingInitialization of BindingPattern
         with v and environment as the arguments.
  ---*/
  var values = [2, 1, 3];
  var initCount = 0;
  
  var iterCount = 0;
  var asyncIter = (async function*() {
    yield* [[values]];
  })();
  
  async function *fn() {
    for await (const [[...x] = function() { initCount += 1; }()] of asyncIter) {
      assert(Array.isArray(x));
      assert.sameValue(x[0], 2);
      assert.sameValue(x[1], 1);
      assert.sameValue(x[2], 3);
      assert.sameValue(x.length, 3);
      assert.notSameValue(x, values);
      assert.sameValue(initCount, 0);
  
      iterCount += 1;
    }
  }
  
  fn().next()
    .then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
    .then($DONE, $DONE);
  