mirror of https://github.com/tc39/test262.git
54 lines
1.4 KiB
Plaintext
54 lines
1.4 KiB
Plaintext
// Copyright (C) 2016 the V8 project authors. All rights reserved.
|
|
// This code is governed by the BSD license found in the LICENSE file.
|
|
/*---
|
|
desc: Reference is evaluated during assignment
|
|
info: |
|
|
ArrayAssignmentPattern : [ Elisionopt AssignmentRestElement ]
|
|
|
|
[...]
|
|
5. Let result be the result of performing
|
|
IteratorDestructuringAssignmentEvaluation of AssignmentRestElement with
|
|
iteratorRecord as the argument
|
|
6. If iteratorRecord.[[done]] is false, return IteratorClose(iterator,
|
|
result).
|
|
|
|
AssignmentRestElement[Yield] : ... DestructuringAssignmentTarget
|
|
|
|
1. If DestructuringAssignmentTarget is neither an ObjectLiteral nor an
|
|
ArrayLiteral, then
|
|
a. Let lref be the result of evaluating DestructuringAssignmentTarget.
|
|
b. ReturnIfAbrupt(lref).
|
|
[...]
|
|
features: [Symbol.iterator]
|
|
template: default
|
|
es6id: 12.14.5.2
|
|
esid: sec-runtime-semantics-destructuringassignmentevaluation
|
|
---*/
|
|
|
|
//- setup
|
|
var nextCount = 0;
|
|
var returnCount = 0;
|
|
var iterable = {};
|
|
var iterator = {
|
|
next: function() {
|
|
nextCount += 1;
|
|
return { done: true };
|
|
},
|
|
return: function() {
|
|
returnCount += 1;
|
|
}
|
|
};
|
|
var obj = {};
|
|
iterable[Symbol.iterator] = function() {
|
|
return iterator;
|
|
};
|
|
//- elems
|
|
[...obj['a' + 'b']]
|
|
//- vals
|
|
iterable
|
|
//- body
|
|
assert.sameValue(nextCount, 1);
|
|
assert.sameValue(returnCount, 0);
|
|
assert(!!obj.ab);
|
|
assert.sameValue(obj.ab.length, 0);
|