Home | History | Annotate | Download | only in v8 
      1 /*
      2  * Copyright 2011, The Android Open Source Project
      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  * 1. Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  * 2. 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 JavaValueV8_h
     27 #define JavaValueV8_h
     28 
     29 #if ENABLE(JAVA_BRIDGE)
     30 
     31 #include "JavaType.h"
     32 
     33 #include <wtf/text/WTFString.h>
     34 
     35 namespace JSC {
     36 
     37 namespace Bindings {
     38 
     39 class JavaInstance;
     40 
     41 // A variant used to represent a Java value, almost identical to the JNI
     42 // jvalue type. It exists because the logic to convert between JavaScript
     43 // objects (as JavaNPObject or JSValue) and Java objects should not depend upon
     44 // JNI, to allow ports to provide a JavaInstance object etc which does not use
     45 // JNI. This means that the 'object' field of this variant uses JavaInstance,
     46 // not jobject.
     47 //
     48 // Note that this class is independent of the JavaScript engine, but is
     49 // currently used only with V8.
     50 // See https://bugs.webkit.org/show_bug.cgi?id=57023.
     51 struct JavaValue {
     52 // ANDROID
     53     JavaValue()
     54         : m_type(JavaTypeInvalid)
     55         , m_booleanValue(false)
     56         , m_byteValue(0)
     57         , m_charValue(0)
     58         , m_shortValue(0)
     59         , m_intValue(0)
     60         , m_longValue(0)
     61         , m_floatValue(0.0)
     62         , m_doubleValue(0.0) {}
     63 // ANDROID
     64 
     65     JavaType m_type;
     66     // We don't use a union because we want to be able to ref-count some of the
     67     // values. This requires types with non-trivial constructors.
     68     RefPtr<JavaInstance> m_objectValue;
     69     bool m_booleanValue;
     70     signed char m_byteValue;
     71     unsigned short m_charValue;
     72     short m_shortValue;
     73     int m_intValue;
     74     long long m_longValue;
     75     float m_floatValue;
     76     double m_doubleValue;
     77     String m_stringValue;
     78 };
     79 
     80 } // namespace Bindings
     81 
     82 } // namespace JSC
     83 
     84 #endif // ENABLE(JAVA_BRIDGE)
     85 
     86 #endif // JavaValueV8_h
     87