JNIBridge.h revision e1ac8b286215f0cb7df30bca8d3057d6992f2851 
1/*
2 * Copyright (C) 2003 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 * 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 APPLE COMPUTER, INC. ``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 APPLE COMPUTER, INC. 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 JNIBridge_h
27#define JNIBridge_h
28
29#if ENABLE(MAC_JAVA_BRIDGE)
30
31#include "JNIUtility.h"
32#include "JavaInstanceJSC.h"
33
34#if USE(JSC)
35#include "JavaStringJSC.h"
36#endif
37
38namespace JSC
39{
40
41namespace Bindings
42{
43
44typedef const char* RuntimeType;
45
46class JavaString
47{
48public:
49    JavaString()
50    {
51        m_impl.init();
52    }
53
54    JavaString(JNIEnv* e, jstring s)
55    {
56        m_impl.init(e, s);
57    }
58
59    JavaString(jstring s)
60    {
61        m_impl.init(getJNIEnv(), s);
62    }
63
64    const char* UTF8String() const { return m_impl.UTF8String(); }
65    const jchar* uchars() const { return m_impl.uchars(); }
66    int length() const { return m_impl.length(); }
67#if USE(JSC)
68    operator UString() const { return m_impl.uString(); }
69#endif
70
71private:
72    JavaStringImpl m_impl;
73};
74
75class JavaParameter
76{
77public:
78    JavaParameter () : _JNIType(invalid_type) {};
79    JavaParameter (JNIEnv *env, jstring type);
80    virtual ~JavaParameter() { }
81
82    RuntimeType type() const { return _type.UTF8String(); }
83    JNIType getJNIType() const { return _JNIType; }
84
85private:
86    JavaString _type;
87    JNIType _JNIType;
88};
89
90
91class JavaField : public Field
92{
93public:
94    JavaField (JNIEnv *env, jobject aField);
95
96    virtual JSValue valueFromInstance(ExecState *exec, const Instance *instance) const;
97    virtual void setValueToInstance(ExecState *exec, const Instance *instance, JSValue aValue) const;
98
99    const JavaString& name() const { return _name; }
100    virtual RuntimeType type() const { return _type.UTF8String(); }
101
102    JNIType getJNIType() const { return _JNIType; }
103
104private:
105    void dispatchSetValueToInstance(ExecState *exec, const JavaInstance *instance, jvalue javaValue, const char *name, const char *sig) const;
106    jvalue dispatchValueFromInstance(ExecState *exec, const JavaInstance *instance, const char *name, const char *sig, JNIType returnType) const;
107
108    JavaString _name;
109    JavaString _type;
110    JNIType _JNIType;
111    RefPtr<JObjectWrapper> _field;
112};
113
114
115class JavaMethod : public Method
116{
117public:
118    JavaMethod(JNIEnv* env, jobject aMethod);
119    ~JavaMethod();
120
121    const JavaString& name() const { return _name; }
122    RuntimeType returnType() const { return _returnType.UTF8String(); };
123    JavaParameter* parameterAt(int i) const { return &_parameters[i]; };
124    int numParameters() const { return _numParameters; };
125
126    const char *signature() const;
127    JNIType JNIReturnType() const;
128
129    jmethodID methodID (jobject obj) const;
130
131    bool isStatic() const { return _isStatic; }
132
133private:
134    JavaParameter* _parameters;
135    int _numParameters;
136    JavaString _name;
137    mutable char* _signature;
138    JavaString _returnType;
139    JNIType _JNIReturnType;
140    mutable jmethodID _methodID;
141    bool _isStatic;
142};
143
144class JavaArray : public Array
145{
146public:
147    JavaArray(jobject array, const char* type, PassRefPtr<RootObject>);
148    virtual ~JavaArray();
149
150    RootObject* rootObject() const;
151
152    virtual void setValueAt(ExecState *exec, unsigned int index, JSValue aValue) const;
153    virtual JSValue valueAt(ExecState *exec, unsigned int index) const;
154    virtual unsigned int getLength() const;
155
156    jobject javaArray() const { return _array->m_instance; }
157
158    static JSValue convertJObjectToArray (ExecState* exec, jobject anObject, const char* type, PassRefPtr<RootObject>);
159
160private:
161    RefPtr<JObjectWrapper> _array;
162    unsigned int _length;
163    const char *_type;
164};
165
166} // namespace Bindings
167
168} // namespace JSC
169
170#endif // ENABLE(MAC_JAVA_BRIDGE)
171
172#endif // JNIBridge_h
173