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Diffstat (limited to 'src/3rdparty/webkit/WebCore/bridge/IdentifierRep.h')
-rw-r--r-- | src/3rdparty/webkit/WebCore/bridge/IdentifierRep.h | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/src/3rdparty/webkit/WebCore/bridge/IdentifierRep.h b/src/3rdparty/webkit/WebCore/bridge/IdentifierRep.h new file mode 100644 index 0000000..8e0e0d9 --- /dev/null +++ b/src/3rdparty/webkit/WebCore/bridge/IdentifierRep.h @@ -0,0 +1,74 @@ +/* + * Copyright (C) 2009 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 COMPUTER, 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 COMPUTER, 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 IdentifierRep_h +#define IdentifierRep_h + +#include <wtf/Assertions.h> +#include <string.h> + +namespace WebCore { + +class IdentifierRep { +public: + static IdentifierRep* get(int); + static IdentifierRep* get(const char*); + + static bool isValid(IdentifierRep*); + + bool isString() const { return m_isString; } + + int number() const { return m_isString ? 0 : m_value.m_number; } + const char* string() const { return m_isString ? m_value.m_string : 0; } + +private: + IdentifierRep(int number) + : m_isString(false) + { + m_value.m_number = number; + } + + IdentifierRep(const char* name) + : m_isString(true) + { + m_value.m_string = strdup(name); + } + + ~IdentifierRep() + { + // IdentifierReps should never be deleted. + ASSERT_NOT_REACHED(); + } + + union { + const char* m_string; + int m_number; + } m_value; + bool m_isString; +}; + +} // namespace WebCore + +#endif // IdentifierRep_h |