// Copyright 2017 the V8 project authors. All rights reserved. | |
// This code is governed by the BSD license found in the LICENSE file. | |
/*--- | |
description: GroupSpecifiers must be unique. | |
info: | | |
It is a Syntax Error if Pattern contains multiple GroupSpecifiers | |
whose enclosed RegExpIdentifierNames have the same StringValue. | |
esid: sec-patterns-static-semantics-early-errors | |
negative: | |
phase: parse | |
type: SyntaxError | |
features: [regexp-named-groups] | |
---*/ | |
$DONOTEVALUATE(); | |
/(?<a>a)(?<b>b)(?<a>a)/u; |