mirror of https://github.com/tc39/test262.git
38 lines
1.2 KiB
JavaScript
38 lines
1.2 KiB
JavaScript
// This file was procedurally generated from the following sources:
|
|
// - src/dstr-assignment/obj-prop-put-order.case
|
|
// - src/dstr-assignment/default/for-of.template
|
|
/*---
|
|
description: The AssignmentElements in an AssignmentElementList are evaluated in left- to-right order. (For..of statement)
|
|
esid: sec-for-in-and-for-of-statements-runtime-semantics-labelledevaluation
|
|
es6id: 13.7.5.11
|
|
features: [destructuring-binding]
|
|
flags: [generated]
|
|
info: |
|
|
IterationStatement :
|
|
for ( LeftHandSideExpression of AssignmentExpression ) Statement
|
|
|
|
1. Let keyResult be the result of performing ? ForIn/OfHeadEvaluation(« »,
|
|
AssignmentExpression, iterate).
|
|
2. Return ? ForIn/OfBodyEvaluation(LeftHandSideExpression, Statement,
|
|
keyResult, assignment, labelSet).
|
|
|
|
13.7.5.13 Runtime Semantics: ForIn/OfBodyEvaluation
|
|
|
|
[...]
|
|
4. If destructuring is true and if lhsKind is assignment, then
|
|
a. Assert: lhs is a LeftHandSideExpression.
|
|
b. Let assignmentPattern be the parse of the source text corresponding to
|
|
lhs using AssignmentPattern as the goal symbol.
|
|
[...]
|
|
---*/
|
|
var x;
|
|
|
|
var counter = 0;
|
|
|
|
for ({ z: x, a: x } of [{ a: 2, z: 1 }]) {
|
|
assert.sameValue(x, 2);
|
|
counter += 1;
|
|
}
|
|
|
|
assert.sameValue(counter, 1);
|