mirror of https://github.com/tc39/test262.git
34 lines
1.0 KiB
JavaScript
34 lines
1.0 KiB
JavaScript
// 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-atom
|
|
es6id: 21.2.2.8
|
|
description: >
|
|
Support for surrogate pairs within patterns match by the CharacterClass Atom
|
|
info: |
|
|
The production Atom :: CharacterClass evaluates as follows:
|
|
|
|
1. Evaluate CharacterClass to obtain a CharSet A and a Boolean invert.
|
|
2. Call CharacterSetMatcher(A, invert) 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(/^[\ud800\udc00]$/u.test('\ud800\udc00'));
|
|
assert.sameValue(
|
|
/[\ud800\udc00]/u.test('\ud800'),
|
|
false,
|
|
'\\ud800 does not qualify as a class member'
|
|
);
|
|
assert.sameValue(
|
|
/[\ud800\udc00]/u.test('\udc00'),
|
|
false,
|
|
'\\udc00 does not qualify as a class member'
|
|
);
|