src/dstr-assignment-for-await/array-rest-nested-obj-yield-expr.case

// Copyright (C) 2017 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
desc: >
    When a `yield` token appears within the Initializer of a nested
    destructuring assignment and within a generator function body, it should
    behave as a YieldExpression.
template: async-generator
features: [generators]
---*/

//- setup
let x;

//- elems
[...{ x = yield }]
//- vals
[{}]
//- teardown
iter.next().then(iterationResult => {
  assert.sameValue(iterationResult.value, undefined);
  assert.sameValue(iterationResult.done, false);
  assert.sameValue(x, undefined);

  iter.next(4).then(iterationResult => {
    assert.sameValue(iterationResult.value, undefined);
    assert.sameValue(iterationResult.done, true);
    assert.sameValue(x, 4);
  }).then($DONE, $DONE);
});