jni_runtime.cpp

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        env->DeleteLocalRef (aParameter);
        env->DeleteLocalRef (parameterName);
    }
    env->DeleteLocalRef (jparameters);

    // Created lazily.
    _signature = 0;
    _methodID = 0;
    
    jclass modifierClass = env->FindClass("java/lang/reflect/Modifier");
    int modifiers = callJNIMethod<jint>(aMethod, "getModifiers", "()I");
    _isStatic = (bool)callJNIStaticMethod<jboolean>(modifierClass, "isStatic", "(I)Z", modifiers);
}

JavaMethod::~JavaMethod() 
{
    if (_signature)
        free(_signature);
    delete [] _parameters;
};

// JNI method signatures use '/' between components of a class name, but
// we get '.' between components from the reflection API.
static void appendClassName(UString& aString, const char* className)
{
    ASSERT(JSLock::lockCount() > 0);
    
    char *result, *cp = strdup(className);
    
    result = cp;
    while (*cp) {
        if (*cp == '.')
            *cp = '/';
        cp++;
    }
        
    aString.append(result);

    free (result);
}

const char *JavaMethod::signature() const 
{
    if (!_signature) {
        JSLock lock(false);

        UString signatureBuilder("(");
        for (int i = 0; i < _numParameters; i++) {
            JavaParameter* aParameter = parameterAt(i);
            JNIType _JNIType = aParameter->getJNIType();
            if (_JNIType == array_type)
                appendClassName(signatureBuilder, aParameter->type());
            else {
                signatureBuilder.append(signatureFromPrimitiveType(_JNIType));
                if (_JNIType == object_type) {
                    appendClassName(signatureBuilder, aParameter->type());
                    signatureBuilder.append(";");
                }
            }
        }
        signatureBuilder.append(")");
        
        const char *returnType = _returnType.UTF8String();
        if (_JNIReturnType == array_type) {
            appendClassName(signatureBuilder, returnType);
        } else {
            signatureBuilder.append(signatureFromPrimitiveType(_JNIReturnType));
            if (_JNIReturnType == object_type) {
                appendClassName(signatureBuilder, returnType);
                signatureBuilder.append(";");
            }
        }
        
        _signature = strdup(signatureBuilder.ascii());
    }
    
    return _signature;
}

JNIType JavaMethod::JNIReturnType() const
{
    return _JNIReturnType;
}

jmethodID JavaMethod::methodID (jobject obj) const
{
    if (_methodID == 0) {
        _methodID = getMethodID (obj, _name.UTF8String(), signature());
    }
    return _methodID;
}


JavaArray::JavaArray(jobject array, const char* type, PassRefPtr<RootObject> rootObject)
    : Array(rootObject)
{
    _array = new JObjectWrapper(array);
    // Java array are fixed length, so we can cache length.
    JNIEnv *env = getJNIEnv();
    _length = env->GetArrayLength((jarray)_array->_instance);
    _type = strdup(type);
    _rootObject = rootObject;
}

JavaArray::~JavaArray () 
{
    free ((void *)_type);
}

RootObject* JavaArray::rootObject() const 
{ 
    return _rootObject && _rootObject->isValid() ? _rootObject.get() : 0;
}

void JavaArray::setValueAt(ExecState* exec, unsigned index, JSValuePtr aValue) const
{
    JNIEnv *env = getJNIEnv();
    char *javaClassName = 0;
    
    JNIType arrayType = JNITypeFromPrimitiveType(_type[1]);
    if (_type[1] == 'L'){
        // The type of the array will be something like:
        // "[Ljava.lang.string;".  This is guaranteed, so no need
        // for extra sanity checks.
        javaClassName = strdup(&_type[2]);
        javaClassName[strchr(javaClassName, ';')-javaClassName] = 0;
    }
    jvalue aJValue = convertValueToJValue (exec, aValue, arrayType, javaClassName);
    
    switch (arrayType) {
        case object_type: {
            env->SetObjectArrayElement((jobjectArray)javaArray(), index, aJValue.l);
            break;
        }
            
        case boolean_type: {
            env->SetBooleanArrayRegion((jbooleanArray)javaArray(), index, 1, &aJValue.z);
            break;
        }
            
        case byte_type: {
            env->SetByteArrayRegion((jbyteArray)javaArray(), index, 1, &aJValue.b);
            break;
        }
            
        case char_type: {
            env->SetCharArrayRegion((jcharArray)javaArray(), index, 1, &aJValue.c);
            break;
        }
            
        case short_type: {
            env->SetShortArrayRegion((jshortArray)javaArray(), index, 1, &aJValue.s);
            break;
        }
            
        case int_type: {
            env->SetIntArrayRegion((jintArray)javaArray(), index, 1, &aJValue.i);
            break;
        }
            
        case long_type: {
            env->SetLongArrayRegion((jlongArray)javaArray(), index, 1, &aJValue.j);
        }
            
        case float_type: {
            env->SetFloatArrayRegion((jfloatArray)javaArray(), index, 1, &aJValue.f);
            break;
        }
            
        case double_type: {
            env->SetDoubleArrayRegion((jdoubleArray)javaArray(), index, 1, &aJValue.d);
            break;
        }
        default:
        break;
    }
    
    if (javaClassName)
        free ((void *)javaClassName);
}


JSValuePtr JavaArray::valueAt(ExecState* exec, unsigned index) const
{
    JNIEnv *env = getJNIEnv();
    JNIType arrayType = JNITypeFromPrimitiveType(_type[1]);
    switch (arrayType) {
        case object_type: {
            jobjectArray objectArray = (jobjectArray)javaArray();
            jobject anObject;
            anObject = env->GetObjectArrayElement(objectArray, index);

            // No object?
            if (!anObject) {
                return jsNull();
            }
            
            // Nested array?
            if (_type[1] == '[') {
                return JavaArray::convertJObjectToArray(exec, anObject, _type+1, rootObject());
            }
            // or array of other object type?
            return JavaInstance::create(anObject, rootObject())->createRuntimeObject(exec);
        }
            
        case boolean_type: {
            jbooleanArray booleanArray = (jbooleanArray)javaArray();
            jboolean aBoolean;
            env->GetBooleanArrayRegion(booleanArray, index, 1, &aBoolean);
            return jsBoolean(aBoolean);
        }
            
        case byte_type: {
            jbyteArray byteArray = (jbyteArray)javaArray();
            jbyte aByte;
            env->GetByteArrayRegion(byteArray, index, 1, &aByte);
            return jsNumber(exec, aByte);
        }
            
        case char_type: {
            jcharArray charArray = (jcharArray)javaArray();
            jchar aChar;
            env->GetCharArrayRegion(charArray, index, 1, &aChar);
            return jsNumber(exec, aChar);
            break;
        }
            
        case short_type: {
            jshortArray shortArray = (jshortArray)javaArray();
            jshort aShort;
            env->GetShortArrayRegion(shortArray, index, 1, &aShort);
            return jsNumber(exec, aShort);
        }
            
        case int_type: {
            jintArray intArray = (jintArray)javaArray();
            jint anInt;
            env->GetIntArrayRegion(intArray, index, 1, &anInt);
            return jsNumber(exec, anInt);
        }
            
        case long_type: {
            jlongArray longArray = (jlongArray)javaArray();
            jlong aLong;
            env->GetLongArrayRegion(longArray, index, 1, &aLong);
            return jsNumber(exec, aLong);
        }
            
        case float_type: {
            jfloatArray floatArray = (jfloatArray)javaArray();
            jfloat aFloat;
            env->GetFloatArrayRegion(floatArray, index, 1, &aFloat);
            return jsNumber(exec, aFloat);
        }
            
        case double_type: {
            jdoubleArray doubleArray = (jdoubleArray)javaArray();
            jdouble aDouble;
            env->GetDoubleArrayRegion(doubleArray, index, 1, &aDouble);
            return jsNumber(exec, aDouble);
        }
        default:
        break;
    }
    return jsUndefined();
}

unsigned int JavaArray::getLength() const
{
    return _length;
}

#endif // ENABLE(MAC_JAVA_BRIDGE)