mirror of https://github.com/tc39/test262.git
34 lines
1.0 KiB
JavaScript
34 lines
1.0 KiB
JavaScript
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// Copyright (C) 2016 the V8 project authors. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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esid: sec-atom
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es6id: 21.2.2.8
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description: >
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Support for surrogate pairs within patterns match by the CharacterClass Atom
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info: |
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The production Atom :: CharacterClass evaluates as follows:
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1. Evaluate CharacterClass to obtain a CharSet A and a Boolean invert.
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2. Call CharacterSetMatcher(A, invert) and return its Matcher result.
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Runtime Semantics: CharacterSetMatcher Abstract Operation
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1. Return an internal Matcher closure that takes two arguments, a State x and
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a Continuation c, and performs the following steps when evaluated:
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[...]
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d. Let cc be Canonicalize(ch).
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[...]
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---*/
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assert(/^[\ud800\udc00]$/u.test('\ud800\udc00'));
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assert.sameValue(
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/[\ud800\udc00]/u.test('\ud800'),
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false,
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'\\ud800 does not qualify as a class member'
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);
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assert.sameValue(
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/[\ud800\udc00]/u.test('\udc00'),
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false,
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'\\udc00 does not qualify as a class member'
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);
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