test262/test/language/statements/for-of/dstr-array-rest-nested-arra...

39 lines
1.4 KiB
JavaScript

// This file was procedurally generated from the following sources:
// - src/dstr-assignment/array-rest-nested-array-yield-ident-valid.case
// - src/dstr-assignment/default/for-of.template
/*---
description: When a `yield` token appears within the DestructuringAssignmentTarget of a nested destructuring assignment and outside of a generator function body, it should behave as an IdentifierExpression. (For..of statement)
esid: sec-for-in-and-for-of-statements-runtime-semantics-labelledevaluation
es6id: 13.7.5.11
features: [destructuring-binding]
flags: [generated, noStrict]
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 yield = 'prop';
var x = {};
var counter = 0;
for ([...[x[yield]]] of [[86]]) {
assert.sameValue(x.prop, 86);
counter += 1;
}
assert.sameValue(counter, 1);