src/dstr-assignment/array-rest-nested-obj-undefined-own.case


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// Copyright (C) 2015 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
desc: >
    When DestructuringAssignmentTarget is an array literal and the iterable
    emits `undefined` as the only value, an array with a single `undefined`
    element should be used as the value of the nested DestructuringAssignment.
template: default
es6id: 12.14.5.3
---*/

//- setup
var x = null;
// Use the the top-level lexical scope for 'length' to provide compatibility with browsers
// where length and name are properties of WindowProxy
let length;
//- elems
[...{ 0: x, length }]
//- vals
[undefined]
//- body
assert.sameValue(x, undefined);
assert.sameValue(length, 1);