1 /* 2 * Copyright (c) 2008, Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #ifndef ScriptString_h 32 #define ScriptString_h 33 34 #include "PlatformString.h" 35 #include <runtime/UString.h> 36 #include <runtime/StringBuilder.h> 37 38 namespace WebCore { 39 40 class String; 41 42 class ScriptString { 43 public: 44 ScriptString() {} 45 ScriptString(const char* s) : m_str(s) {} 46 ScriptString(const JSC::UString& s) : m_str(s) {} 47 48 operator JSC::UString() const { return m_str; } 49 50 bool isNull() const { return m_str.isNull(); } 51 size_t size() const { return m_str.size(); } 52 53 ScriptString& operator=(const char* s) 54 { 55 m_str = s; 56 return *this; 57 } 58 59 ScriptString& operator+=(const String& s) 60 { 61 JSC::StringBuilder buffer; 62 buffer.append(m_str); 63 buffer.append(s); 64 m_str = buffer.build(); 65 return *this; 66 } 67 68 bool operator==(const ScriptString& s) const 69 { 70 return m_str == s.m_str; 71 } 72 73 bool operator!=(const ScriptString& s) const 74 { 75 // Avoid exporting an extra symbol by re-using "==" operator. 76 return !(m_str == s.m_str); 77 } 78 79 private: 80 JSC::UString m_str; 81 }; 82 83 } // namespace WebCore 84 85 #endif // ScriptString_h 86
