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// 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'
);
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