| /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- |
| * vim: set ts=8 sts=4 et sw=4 tw=99: |
| * |
| * Copyright (C) 2012 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef yarr_MatchResult_h |
| #define yarr_MatchResult_h |
| |
| #include "wtfbridge.h" |
| |
| typedef uint64_t EncodedMatchResult; |
| |
| struct MatchResult { |
| MatchResult(int start, int end) |
| : start(start) |
| , end(end) |
| { |
| } |
| |
| #if !WTF_CPU_X86_64 || WTF_PLATFORM_WIN |
| explicit MatchResult(EncodedMatchResult encoded) |
| { |
| union u { |
| uint64_t encoded; |
| struct s { |
| int start; |
| int end; |
| } split; |
| } value; |
| value.encoded = encoded; |
| start = value.split.start; |
| end = value.split.end; |
| } |
| #endif |
| |
| static MatchResult failed() |
| { |
| return MatchResult(int(WTF::notFound), 0); |
| } |
| |
| operator bool() |
| { |
| return start != int(WTF::notFound); |
| } |
| |
| bool empty() |
| { |
| return start == end; |
| } |
| |
| // strings are limited to a length of 2^28. So this is safe |
| int start; |
| int end; |
| }; |
| |
| #endif /* yarr_MatchResult_h */ |