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// This file was procedurally generated from the following sources:
// - src/dstr-assignment/array-rest-nested-obj-undefined-hole.case
// - src/dstr-assignment/default/for-of.template
/*---
description: When DestructuringAssignmentTarget is an array literal and the iterable is an array with a "hole", an array with a single `undefined` element should be used as the value of the nested DestructuringAssignment. (For..of statement)
esid: sec-for-in-and-for-of-statements-runtime-semantics-labelledevaluation
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 = 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;
var counter = 0;
for ([...{ 0: x, length }] of [[ , ]]) {
assert.sameValue(x, undefined);
assert.sameValue(length, 1);
counter += 1;
}
assert.sameValue(counter, 1);
reportCompare(0, 0);
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