Home | History | Annotate | Download | only in jsc 
      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 
     32 #include <runtime/JSLock.h>
     33 #include <runtime/ScopeChain.h>
     34 
     35 
     36 namespace JSC {
     37 
     38 namespace Bindings {
     39 
     40 class JavaStringImpl {
     41 public:
     42     ~JavaStringImpl()
     43     {
     44         JSLock lock(SilenceAssertionsOnly);
     45         m_impl = 0;
     46     }
     47 
     48     void init()
     49     {
     50         JSLock lock(SilenceAssertionsOnly);
     51         m_impl = UString().impl();
     52     }
     53 
     54     void init(JNIEnv* e, jstring s)
     55     {
     56         int size = e->GetStringLength(s);
     57         const jchar* uc = getUCharactersFromJStringInEnv(e, s);
     58         {
     59             JSLock lock(SilenceAssertionsOnly);
     60             m_impl = UString(reinterpret_cast<const UChar*>(uc), size).impl();
     61         }
     62         releaseUCharactersForJStringInEnv(e, s, uc);
     63     }
     64 
     65     const char* utf8() const
     66     {
     67         if (!m_utf8String.data()) {
     68             JSLock lock(SilenceAssertionsOnly);
     69             m_utf8String = UString(m_impl).utf8();
     70         }
     71         return m_utf8String.data();
     72     }
     73     int length() const { return m_impl->length(); }
     74     StringImpl* impl() const { return m_impl.get(); }
     75 
     76 private:
     77     RefPtr<StringImpl> m_impl;
     78     mutable CString m_utf8String;
     79 };
     80 
     81 } // namespace Bindings
     82 
     83 } // namespace JSC
     84 
     85 #endif // JavaStringJSC_h
     86