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      1 /*
      2  * Copyright (C) 2010 Apple Computer, 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
      6  * are met:
      7  *  * Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  *  * Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
     14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
     17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #ifndef JavaStringJSC_h
     27 #define JavaStringJSC_h
     28 
     29 #include "JNIUtility.h"
     30 #include "JavaInstanceJSC.h"
     31 #include <runtime/JSLock.h>
     32 
     33 
     34 namespace JSC {
     35 
     36 namespace Bindings {
     37 
     38 class JavaStringImpl {
     39 public:
     40     ~JavaStringImpl()
     41     {
     42         JSLock lock(SilenceAssertionsOnly);
     43         m_rep = 0;
     44     }
     45 
     46     void init()
     47     {
     48         JSLock lock(SilenceAssertionsOnly);
     49         m_rep = UString().rep();
     50     }
     51 
     52     void init(JNIEnv* e, jstring s)
     53     {
     54         int size = e->GetStringLength(s);
     55         const jchar* uc = getUCharactersFromJStringInEnv(e, s);
     56         {
     57             JSLock lock(SilenceAssertionsOnly);
     58             m_rep = UString(reinterpret_cast<const UChar*>(uc), size).rep();
     59         }
     60         releaseUCharactersForJStringInEnv(e, s, uc);
     61     }
     62 
     63     const char* UTF8String() const
     64     {
     65         if (!m_utf8String.c_str()) {
     66             JSLock lock(SilenceAssertionsOnly);
     67             m_utf8String = UString(m_rep).UTF8String();
     68         }
     69         return m_utf8String.c_str();
     70     }
     71     const jchar* uchars() const { return (const jchar*)m_rep->data(); }
     72     int length() const { return m_rep->size(); }
     73     UString uString() const { return UString(m_rep); }
     74 
     75 private:
     76     RefPtr<UString::Rep> m_rep;
     77     mutable CString m_utf8String;
     78 };
     79 
     80 } // namespace Bindings
     81 
     82 } // namespace JSC
     83 
     84 #endif // JavaStringJSC_h
     85