mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
synced 2025-04-11 19:31:00 +00:00
95 lines
2.7 KiB
C++
95 lines
2.7 KiB
C++
/*
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* Copyright (C) 2012, 2016 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include <wtf/NotFound.h>
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#include <wtf/PrintStream.h>
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namespace JSC {
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struct MatchResult;
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#if CPU(ADDRESS32)
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using EncodedMatchResult = uint64_t;
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#else
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struct EncodedMatchResult {
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size_t start;
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size_t end;
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};
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#endif
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struct MatchResult {
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MatchResult()
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: start(WTF::notFound)
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, end(0)
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{
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}
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ALWAYS_INLINE MatchResult(size_t start, size_t end)
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: start(start)
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, end(end)
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{
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}
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#if CPU(ADDRESS32)
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ALWAYS_INLINE MatchResult(EncodedMatchResult match)
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: start(bitwise_cast<MatchResult>(match).start)
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, end(bitwise_cast<MatchResult>(match).end)
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{
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}
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#else
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ALWAYS_INLINE MatchResult(EncodedMatchResult match)
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: start(match.start)
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, end(match.end)
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{
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}
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#endif
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ALWAYS_INLINE static MatchResult failed()
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{
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return MatchResult();
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}
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ALWAYS_INLINE explicit operator bool() const
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{
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return start != WTF::notFound;
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}
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ALWAYS_INLINE bool empty()
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{
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return start == end;
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}
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void dump(PrintStream&) const;
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size_t start;
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size_t end;
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};
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static_assert(sizeof(EncodedMatchResult) == 2 * sizeof(size_t), "https://bugs.webkit.org/show_bug.cgi?id=198518#c11");
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static_assert(sizeof(MatchResult) == sizeof(EncodedMatchResult), "Match result and EncodedMatchResult should be the same size");
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} // namespace JSC
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