| // Copyright (C) 2016 the V8 project authors. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| /*--- |
| esid: sec-atomescape |
| es6id: 21.2.2.9 |
| description: > |
| Support for surrogate pairs within patterns match by the CharacterClassEscape |
| AtomEscape |
| info: | |
| The production AtomEscape :: CharacterClassEscape evaluates as follows: |
| |
| 1. Evaluate CharacterClassEscape to obtain a CharSet A. |
| 2. Call CharacterSetMatcher(A, false) and return its Matcher result. |
| |
| Runtime Semantics: CharacterSetMatcher Abstract Operation |
| |
| 1. Return an internal Matcher closure that takes two arguments, a State x and |
| a Continuation c, and performs the following steps when evaluated: |
| [...] |
| d. Let cc be Canonicalize(ch). |
| [...] |
| ---*/ |
| |
| assert(/^\S$/u.test('\ud800\udc00')); |
