| /* |
| * 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 <wtf/text/CString.h> |
| #include <wtf/text/StringHash.h> |
| #include <wtf/text/WTFString.h> |
| |
| namespace JSC { |
| |
| struct CallIdentifier { |
| WTF_MAKE_FAST_ALLOCATED; |
| public: |
| String m_name; |
| String m_url; |
| unsigned m_lineNumber; |
| |
| CallIdentifier() |
| : m_lineNumber(0) |
| { |
| } |
| |
| CallIdentifier(const String& name, const String& url, int lineNumber) |
| : m_name(name) |
| , m_url(!url.isNull() ? 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.impl()->hash(), |
| key.m_url.impl()->hash(), |
| key.m_lineNumber |
| }; |
| return StringHasher::hashMemory<sizeof(hashCodes)>(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.utf8().data(); } |
| #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 (NotNull, &slot) JSC::CallIdentifier(String(), String(), 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 |
| |