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https://github.com/flutter/flutter.git
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133 lines
4.1 KiB
C++
133 lines
4.1 KiB
C++
/*
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* Copyright (C) 2009 Google 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 are
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* met:
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*
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* * 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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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Google Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY 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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#ifndef SKY_ENGINE_PUBLIC_PLATFORM_WEBCSTRING_H_
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#define SKY_ENGINE_PUBLIC_PLATFORM_WEBCSTRING_H_
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#include "flutter/sky/engine/public/platform/WebCommon.h"
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#include "flutter/sky/engine/public/platform/WebPrivatePtr.h"
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#if INSIDE_BLINK
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#include "flutter/sky/engine/wtf/Forward.h"
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#endif
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#if !INSIDE_BLINK || defined(UNIT_TEST)
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#include <string>
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#endif
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namespace WTF {
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class CString;
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class CStringBuffer;
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}
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namespace blink {
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// A single-byte string container with unspecified encoding. It is
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// inexpensive to copy a WebCString object.
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//
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// WARNING: It is not safe to pass a WebCString across threads!!!
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//
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class WebCString {
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public:
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~WebCString() { reset(); }
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WebCString() { }
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WebCString(const char* data, size_t len)
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{
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assign(data, len);
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}
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WebCString(const WebCString& s) { assign(s); }
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WebCString& operator=(const WebCString& s)
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{
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assign(s);
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return *this;
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}
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// Returns 0 if both strings are equals, a value greater than zero if the
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// first character that does not match has a greater value in this string
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// than in |other|, or a value less than zero to indicate the opposite.
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BLINK_COMMON_EXPORT int compare(const WebCString& other) const;
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BLINK_COMMON_EXPORT void reset();
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BLINK_COMMON_EXPORT void assign(const WebCString&);
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BLINK_COMMON_EXPORT void assign(const char* data, size_t len);
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BLINK_COMMON_EXPORT size_t length() const;
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BLINK_COMMON_EXPORT const char* data() const;
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bool isEmpty() const { return !length(); }
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bool isNull() const { return m_private.isNull(); }
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#if INSIDE_BLINK
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BLINK_COMMON_EXPORT WebCString(const WTF::CString&);
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BLINK_COMMON_EXPORT WebCString& operator=(const WTF::CString&);
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BLINK_COMMON_EXPORT operator WTF::CString() const;
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#else
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WebCString(const std::string& s)
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{
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assign(s.data(), s.length());
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}
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WebCString& operator=(const std::string& s)
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{
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assign(s.data(), s.length());
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return *this;
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}
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#endif
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#if !INSIDE_BLINK || defined(UNIT_TEST)
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operator std::string() const
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{
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size_t len = length();
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return len ? std::string(data(), len) : std::string();
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}
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template <class UTF16String>
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static WebCString fromUTF16(const UTF16String& s)
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{
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return fromUTF16(s.data(), s.length());
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}
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#endif
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private:
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BLINK_COMMON_EXPORT void assign(WTF::CStringBuffer*);
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WebPrivatePtr<WTF::CStringBuffer> m_private;
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};
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inline bool operator<(const WebCString& a, const WebCString& b)
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{
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return a.compare(b) < 0;
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}
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} // namespace blink
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#endif // SKY_ENGINE_PUBLIC_PLATFORM_WEBCSTRING_H_
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