src/dstr-binding/ary-ptrn-elem-id-iter-complete.case

// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
desc: SingleNameBinding when value iteration completes
template: default
info: |
    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,
          [...]
    5. If iteratorRecord.[[done]] is true, let v be undefined.
    [...]
    8. Return InitializeReferencedBinding(lhs, v).
---*/

//- elems
[x]
//- vals
[]
//- body
assert.sameValue(x, undefined);