test262/test/language/literals/regexp/u-invalid-optional-lookbehi...

21 lines
498 B
JavaScript

// Copyright (C) 2018 Igalia S. L. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-regular-expressions-patterns
description: Lookbehinds are not treated as a QuantifiableAssertion
info: |
Term[U] ::
[~U] QuantifiableAssertion Quantifier
QuantifiableAssertion[N]::
( ? = Disjunction[~U, ?N] )
( ? ! Disjunction[~U, ?N] )
negative:
phase: parse
type: SyntaxError
---*/
$DONOTEVALUATE();
/.(?<=.)?/u;