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Diffstat (limited to 'src/3rdparty/javascriptcore/JavaScriptCore/profiler/CallIdentifier.h')
-rw-r--r-- | src/3rdparty/javascriptcore/JavaScriptCore/profiler/CallIdentifier.h | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/src/3rdparty/javascriptcore/JavaScriptCore/profiler/CallIdentifier.h b/src/3rdparty/javascriptcore/JavaScriptCore/profiler/CallIdentifier.h new file mode 100644 index 0000000..ba48c55 --- /dev/null +++ b/src/3rdparty/javascriptcore/JavaScriptCore/profiler/CallIdentifier.h @@ -0,0 +1,98 @@ +/* + * Copyright (C) 2008 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 CallIdentifier_h +#define CallIdentifier_h + +#include <runtime/UString.h> +#include "FastAllocBase.h" + +namespace JSC { + + struct CallIdentifier : public FastAllocBase { + UString m_name; + UString m_url; + unsigned m_lineNumber; + + CallIdentifier() + : m_lineNumber(0) + { + } + + CallIdentifier(const UString& name, const UString& url, int lineNumber) + : m_name(name) + , m_url(url) + , m_lineNumber(lineNumber) + { + } + + inline bool operator==(const CallIdentifier& ci) const { return ci.m_lineNumber == m_lineNumber && ci.m_name == m_name && ci.m_url == m_url; } + inline bool operator!=(const CallIdentifier& ci) const { return !(*this == ci); } + + struct Hash { + static unsigned hash(const CallIdentifier& key) + { + unsigned hashCodes[3] = { + key.m_name.rep()->hash(), + key.m_url.rep()->hash(), + key.m_lineNumber + }; + return UString::Rep::computeHash(reinterpret_cast<char*>(hashCodes), sizeof(hashCodes)); + } + + static bool equal(const CallIdentifier& a, const CallIdentifier& b) { return a == b; } + static const bool safeToCompareToEmptyOrDeleted = true; + }; + + unsigned hash() const { return Hash::hash(*this); } + +#ifndef NDEBUG + operator const char*() const { return c_str(); } + const char* c_str() const { return m_name.UTF8String().c_str(); } +#endif + }; + +} // namespace JSC + +namespace WTF { + + template<> struct DefaultHash<JSC::CallIdentifier> { typedef JSC::CallIdentifier::Hash Hash; }; + + template<> struct HashTraits<JSC::CallIdentifier> : GenericHashTraits<JSC::CallIdentifier> { + static void constructDeletedValue(JSC::CallIdentifier& slot) + { + new (&slot) JSC::CallIdentifier(JSC::UString(), JSC::UString(), std::numeric_limits<unsigned>::max()); + } + static bool isDeletedValue(const JSC::CallIdentifier& value) + { + return value.m_name.isNull() && value.m_url.isNull() && value.m_lineNumber == std::numeric_limits<unsigned>::max(); + } + }; + +} // namespace WTF + +#endif // CallIdentifier_h + |