text: // This file was procedurally generated from the following sources:
  // - src/dstr-binding/ary-ptrn-rest-id-iter-step-err.case
  // - src/dstr-binding/error/async-gen-func-named-expr-dflt.template
  /*---
  description: Error forwarding when IteratorStep returns an abrupt completion (async generator named function expression (default parameter))
  esid: sec-asyncgenerator-definitions-evaluation
  features: [generators, async-iteration]
  flags: [generated]
  info: |
      AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
          ( FormalParameters ) { AsyncGeneratorBody }
  
          [...]
          7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
             AsyncGeneratorBody, funcEnv, strict).
          [...]
  
      13.3.3.6 Runtime Semantics: IteratorBindingInitialization
      BindingRestElement : ... BindingIdentifier
      1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
         environment).
      2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
         a. If iteratorRecord.[[done]] is false,
            i. Let next be IteratorStep(iteratorRecord.[[iterator]]).
            ii. If next is an abrupt completion, set iteratorRecord.[[done]] to
                true.
            iii. ReturnIfAbrupt(next).
  
  ---*/
  var first = 0;
  var second = 0;
  var iter = function*() {
    first += 1;
    throw new Test262Error();
    second += 1;
  }();
  
  
  var f;
  f = async function* h([...x] = iter) {
    
  };
  
  assert.throws(Test262Error, function() {
    f();
  });
  
  iter.next();
  assert.sameValue(first, 1);
  assert.sameValue(second, 0, 'Iterator is closed following abrupt completion.');
  