text: // This file was procedurally generated from the following sources:
  // - src/dstr-binding-for-await/ary-init-iter-close.case
  // - src/dstr-binding-for-await/default/for-await-of-async-func-let.template
  /*---
  description: Iterator is closed when not exhausted by pattern evaluation (for-await-of statement)
  esid: sec-for-in-and-for-of-statements-runtime-semantics-labelledevaluation
  features: [Symbol.iterator, 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.
            [...]
  
      13.3.3.5 Runtime Semantics: BindingInitialization
  
      BindingPattern : ArrayBindingPattern
  
      [...]
      4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
         result).
      [...]
  
  ---*/
  var doneCallCount = 0;
  var iter = {};
  iter[Symbol.iterator] = function() {
    return {
      next() {
        return { value: null, done: false };
      },
      return() {
        doneCallCount += 1;
        return {};
      }
    };
  };
  
  var iterCount = 0;
  
  async function fn() {
    for await (let [x] of [iter]) {
      assert.sameValue(doneCallCount, 1);
  
      iterCount += 1;
    }
  }
  
  fn()
    .then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
    .then($DONE, $DONE);
  
  