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 "JSDOMBinding.h"

    35 #include "PlatformString.h"

    36 #include <runtime/UString.h>

    37 #include <runtime/StringBuilder.h>

    38 

    39 namespace WebCore {

    40 

    41 class String;

    42 

    43 class ScriptString {

    44 public:

    45     ScriptString() {}

    46     ScriptString(const char* s) : m_str(s) {}

    47     ScriptString(const String& s) : m_str(stringToUString(s)) {}

    48     ScriptString(const JSC::UString& s) : m_str(s) {}

    49 

    50     operator JSC::UString() const { return m_str; }

    51     operator String() const { return ustringToString(m_str); }

    52     const JSC::UString& ustring() const { return m_str; }

    53 

    54     bool isNull() const { return m_str.isNull(); }

    55     size_t size() const { return m_str.size(); }

    56 

    57     ScriptString& operator=(const char* s)

    58     {

    59         m_str = s;

    60         return *this;

    61     }

    62 

    63     ScriptString& operator+=(const String& s)

    64     {

    65         JSC::StringBuilder buffer;

    66         buffer.append(m_str);

    67         buffer.append(stringToUString(s));

    68         m_str = buffer.build();

    69         return *this;

    70     }

    71 

    72     bool operator==(const ScriptString& s) const

    73     {

    74         return m_str == s.m_str;

    75     }

    76 

    77     bool operator!=(const ScriptString& s) const

    78     {

    79         // Avoid exporting an extra symbol by re-using "==" operator.

    80         return !(m_str == s.m_str);

    81     }

    82 

    83 private:

    84     JSC::UString m_str;

    85 };

    86 

    87 } // namespace WebCore

    88 

    89 #endif // ScriptString_h