| // Copyright 2018 Mathias Bynens. All rights reserved. | |
| // This code is governed by the BSD license found in the LICENSE file. | |
| /*--- | |
| author: Mathias Bynens | |
| description: > | |
| Non-existent properties must not be supported in Unicode property escapes. | |
| esid: sec-static-semantics-unicodematchproperty-p | |
| negative: | |
| phase: parse | |
| type: SyntaxError | |
| features: [regexp-unicode-property-escapes] | |
| ---*/ | |
| $DONOTEVALUATE(); | |
| /\P{Line_Breakz=Alphabetic}/u; |