mirror of https://github.com/tc39/test262.git
20 lines
614 B
JavaScript
20 lines
614 B
JavaScript
// Copyright 2017 the V8 project authors. All rights reserved.
|
|
// This code is governed by the BSD license found in the LICENSE file.
|
|
|
|
/*---
|
|
description: GroupSpecifiers within one alternative must be unique.
|
|
info: |
|
|
It is a Syntax Error if |Pattern| contains two distinct |GroupSpecifier|s
|
|
_x_ and _y_ for which CapturingGroupName(_x_) is the same as
|
|
CapturingGroupName(_y_) and such that CanBothParticipate(_x_, _y_) is *true*.
|
|
esid: sec-patterns-static-semantics-early-errors
|
|
negative:
|
|
phase: parse
|
|
type: SyntaxError
|
|
features: [regexp-named-groups]
|
|
---*/
|
|
|
|
$DONOTEVALUATE();
|
|
|
|
/(?<a>a)(?<b>b)(?<a>a)/u;
|