test262/test/language/statements/for-of/dstr-obj-rest-nested-obj.js

43 lines
1.5 KiB
JavaScript

// This file was procedurally generated from the following sources:
// - src/dstr-assignment/obj-rest-nested-obj.case
// - src/dstr-assignment/default/for-of.template
/*---
description: When DestructuringAssignmentTarget is an object literal, it should be parsed parsed as a DestructuringAssignmentPattern and evaluated as a destructuring assignment. (For..of statement)
esid: sec-for-in-and-for-of-statements-runtime-semantics-labelledevaluation
es6id: 13.7.5.11
features: [object-rest, 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 a, b, c, d, e;
var counter = 0;
for ({a, b, ...{c, e}} of [{a: 1, b: 2, c: 3, d: 4, e: 5}]) {
assert.sameValue(a, 1);
assert.sameValue(b, 2);
assert.sameValue(c, 3);
assert.sameValue(e, 5);
assert.sameValue(d, undefined);
counter += 1;
}
assert.sameValue(counter, 1);