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f9bf01c6 | 1 | /* |
6fe7ccc8 | 2 | * Copyright (C) 2012 Apple Inc. All rights reserved. |
f9bf01c6 A |
3 | * |
4 | * Redistribution and use in source and binary forms, with or without | |
5 | * modification, are permitted provided that the following conditions | |
6 | * are met: | |
7 | * 1. Redistributions of source code must retain the above copyright | |
8 | * notice, this list of conditions and the following disclaimer. | |
9 | * 2. Redistributions in binary form must reproduce the above copyright | |
10 | * notice, this list of conditions and the following disclaimer in the | |
11 | * documentation and/or other materials provided with the distribution. | |
12 | * | |
13 | * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY | |
14 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
15 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
16 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR | |
17 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
18 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
19 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
20 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | |
21 | * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
22 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
6fe7ccc8 | 23 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
f9bf01c6 A |
24 | */ |
25 | ||
6fe7ccc8 A |
26 | #ifndef MatchResult_h |
27 | #define MatchResult_h | |
f9bf01c6 | 28 | |
6fe7ccc8 | 29 | typedef uint64_t EncodedMatchResult; |
f9bf01c6 | 30 | |
6fe7ccc8 A |
31 | struct MatchResult { |
32 | ALWAYS_INLINE MatchResult(size_t start, size_t end) | |
33 | : start(start) | |
34 | , end(end) | |
35 | { | |
36 | } | |
f9bf01c6 | 37 | |
6fe7ccc8 | 38 | explicit ALWAYS_INLINE MatchResult(EncodedMatchResult encoded) |
f9bf01c6 | 39 | { |
6fe7ccc8 A |
40 | union u { |
41 | uint64_t encoded; | |
42 | struct s { | |
43 | size_t start; | |
44 | size_t end; | |
45 | } split; | |
46 | } value; | |
47 | value.encoded = encoded; | |
48 | start = value.split.start; | |
49 | end = value.split.end; | |
f9bf01c6 | 50 | } |
6fe7ccc8 A |
51 | |
52 | ALWAYS_INLINE static MatchResult failed() | |
f9bf01c6 | 53 | { |
6fe7ccc8 A |
54 | return MatchResult(WTF::notFound, 0); |
55 | } | |
56 | ||
57 | ALWAYS_INLINE operator bool() | |
58 | { | |
59 | return start != WTF::notFound; | |
f9bf01c6 | 60 | } |
f9bf01c6 | 61 | |
6fe7ccc8 A |
62 | ALWAYS_INLINE bool empty() |
63 | { | |
64 | return start == end; | |
65 | } | |
f9bf01c6 | 66 | |
6fe7ccc8 A |
67 | size_t start; |
68 | size_t end; | |
69 | }; | |
f9bf01c6 A |
70 | |
71 | #endif |