The Tor Browser / file comparison
comparison: js/src/yarr/MatchResult.h
js/src/yarr/MatchResult.h
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:d023d1fe1462 |
|---|---|
| 1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- | |
| 2 * vim: set ts=8 sts=4 et sw=4 tw=99: | |
| 3 * | |
| 4 * Copyright (C) 2012 Apple Inc. All rights reserved. | |
| 5 * | |
| 6 * Redistribution and use in source and binary forms, with or without | |
| 7 * modification, are permitted provided that the following conditions | |
| 8 * are met: | |
| 9 * 1. Redistributions of source code must retain the above copyright | |
| 10 * notice, this list of conditions and the following disclaimer. | |
| 11 * 2. Redistributions in binary form must reproduce the above copyright | |
| 12 * notice, this list of conditions and the following disclaimer in the | |
| 13 * documentation and/or other materials provided with the distribution. | |
| 14 * | |
| 15 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY | |
| 16 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 18 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR | |
| 19 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
| 20 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
| 21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
| 22 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | |
| 23 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 25 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 26 */ | |
| 27 | |
| 28 #ifndef yarr_MatchResult_h | |
| 29 #define yarr_MatchResult_h | |
| 30 | |
| 31 #include "yarr/wtfbridge.h" | |
| 32 | |
| 33 typedef uint64_t EncodedMatchResult; | |
| 34 | |
| 35 struct MatchResult { | |
| 36 MatchResult(int start, int end) | |
| 37 : start(start) | |
| 38 , end(end) | |
| 39 { | |
| 40 } | |
| 41 | |
| 42 #if !WTF_CPU_X86_64 || WTF_PLATFORM_WIN | |
| 43 explicit MatchResult(EncodedMatchResult encoded) | |
| 44 { | |
| 45 union u { | |
| 46 uint64_t encoded; | |
| 47 struct s { | |
| 48 int start; | |
| 49 int end; | |
| 50 } split; | |
| 51 } value; | |
| 52 value.encoded = encoded; | |
| 53 start = value.split.start; | |
| 54 end = value.split.end; | |
| 55 } | |
| 56 #endif | |
| 57 | |
| 58 static MatchResult failed() | |
| 59 { | |
| 60 return MatchResult(int(WTF::notFound), 0); | |
| 61 } | |
| 62 | |
| 63 operator bool() | |
| 64 { | |
| 65 return start != int(WTF::notFound); | |
| 66 } | |
| 67 | |
| 68 bool empty() | |
| 69 { | |
| 70 return start == end; | |
| 71 } | |
| 72 | |
| 73 // strings are limited to a length of 2^28. So this is safe | |
| 74 int start; | |
| 75 int end; | |
| 76 }; | |
| 77 | |
| 78 #endif /* yarr_MatchResult_h */ |
