C++ (Cpp) JPTypeName::getType示例

示例#1

文件： jp_objecttypes.cpp 项目： Sunyifan/jpype

EMatchType JPClassType::canConvertToJava(HostRef* obj)
{
	JPCleaner cleaner;

	if (JPEnv::getHost()->isNone(obj))
	{
		return _implicit;
	}

	if (JPEnv::getHost()->isClass(obj))
	{
		return _exact;
	}

	if (JPEnv::getHost()->isWrapper(obj))
	{
		JPTypeName name = JPEnv::getHost()->getWrapperTypeName(obj);

		if (name.getType() == JPTypeName::_class)
		{
			return _exact;
		}
	}

	return _none;
}

示例#2

文件： jp_doubletype.cpp 项目： originell/jpype

EMatchType JPDoubleType::canConvertToJava(HostRef* obj)
{
	if (JPEnv::getHost()->isNone(obj))
	{
		return _none;
	}

	if (JPEnv::getHost()->isFloat(obj))
	{
		if (JPEnv::getHost()->isObject(obj))
		{
			return _implicit;
		}
		return _exact;
	}

	if (JPEnv::getHost()->isWrapper(obj))
	{
		JPTypeName name = JPEnv::getHost()->getWrapperTypeName(obj);
		if (name.getType() == JPTypeName::_double)
		{
			return _exact;
		}
	}

	// Java allows conversion to any type with a longer range even if lossy
	if (JPEnv::getHost()->isInt(obj) || JPEnv::getHost()->isLong(obj))
	{
		return _implicit;
	}

	return _none;
}

示例#3

文件： jp_class.cpp 项目： Kcrong/speech_analysis

HostRef* JPClass::asHostObject(jvalue obj) 
{
	TRACE_IN("JPClass::asPyObject");
	if (obj.l == NULL)
	{
		return JPEnv::getHost()->getNone();
	}

	JPTypeName name = JPJni::getClassName(obj.l);
	if (name.getType() ==JPTypeName::_array)
	{
		JPType* arrayType = JPTypeManager::getType(name);
		return arrayType->asHostObject(obj);
	}
	
	return JPEnv::getHost()->newObject(new JPObject(name, obj.l));
	TRACE_OUT;
}

示例#4

文件： jp_objecttypes.cpp 项目： Sunyifan/jpype

EMatchType JPStringType::canConvertToJava(HostRef* obj)
{
	TRACE_IN("JPStringType::canConvertToJava");
	JPCleaner cleaner;

	if (obj == NULL || JPEnv::getHost()->isNone(obj))
	{
		return _implicit;
	}

	if (JPEnv::getHost()->isString(obj))
	{
		return _exact;
	}
	
	if (JPEnv::getHost()->isWrapper(obj))
	{
		JPTypeName name = JPEnv::getHost()->getWrapperTypeName(obj);

		if (name.getType() == JPTypeName::_string)
		{
			return _exact;
		}
	}

	if (JPEnv::getHost()->isObject(obj))
	{
		JPObject* o = JPEnv::getHost()->asObject(obj);

		JPClass* oc = o->getClass();
		if (oc->getName().getSimpleName() == "java.lang.String")
		{
			return _exact;
		}
	}
	return _none;
	TRACE_OUT;
}

示例#5

文件： jp_proxy.cpp 项目： Koblaid/jpype

JNIEXPORT jobject JNICALL Java_jpype_JPypeInvocationHandler_hostInvoke(
	JNIEnv *env, jclass clazz, jstring name, 
	jlong hostObj, jobjectArray args, 
	jobjectArray types, jclass returnType)
{
	TRACE_IN("Java_jpype_JPypeInvocationHandler_hostInvoke");

	void* callbackState = JPEnv::getHost()->prepareCallbackBegin();

	JPCleaner cleaner;

	try {
		string cname = JPJni::asciiFromJava(name);

		HostRef* hostObjRef = (HostRef*)hostObj;

		HostRef* callable = JPEnv::getHost()->getCallableFrom(hostObjRef, cname);
		cleaner.add(callable);

		if (callable == NULL || callable->isNull() || JPEnv::getHost()->isNone(callable))
		{
			JPEnv::getJava()->ThrowNew(JPJni::s_NoSuchMethodErrorClass, cname.c_str());
			JPEnv::getHost()->prepareCallbackFinish(callbackState);
			return NULL;
		}
					
		// convert the arguments into a python list
		jsize argLen = JPEnv::getJava()->GetArrayLength(types);
		vector<HostRef*> hostArgs;
		std::vector<JPTypeName> argTypes;

		for (jsize j = 0; j < argLen; j++)
		{
			jclass c = (jclass)JPEnv::getJava()->GetObjectArrayElement(types, j);
			cleaner.addLocal(c);
			JPTypeName tn = JPJni::getName(c);
			argTypes.push_back(tn);
		}

		for (int i = 0; i < argLen; i++)
		{
			jobject obj = JPEnv::getJava()->GetObjectArrayElement(args, i);
			cleaner.addLocal(obj);
			JPTypeName t = argTypes[i];

			jvalue v;
			v.l = obj;

			HostRef* o = JPTypeManager::getType(t)->asHostObjectFromObject(v);
			cleaner.add(o);
			hostArgs.push_back(o);

		}

		HostRef* returnValue = JPEnv::getHost()->callObject(callable, hostArgs);
		cleaner.add(returnValue);

		JPTypeName returnT = JPJni::getName(returnType);

		if (returnValue == NULL || returnValue->isNull() || JPEnv::getHost()->isNone(returnValue))
		{
			if (returnT.getType() != JPTypeName::_void && returnT.getType() < JPTypeName::_object)
			{
				JPEnv::getJava()->ThrowNew(JPJni::s_RuntimeExceptionClass, "Return value is None when it cannot be");
				JPEnv::getHost()->prepareCallbackFinish(callbackState);
				return NULL;
			}
		}

		if (returnT.getType() == JPTypeName::_void)
		{
			JPEnv::getHost()->prepareCallbackFinish(callbackState);
			return NULL;
		}

		JPType* rt = JPTypeManager::getType(returnT);
		if (rt->canConvertToJava(returnValue) == _none)
		{
			JPEnv::getJava()->ThrowNew(JPJni::s_RuntimeExceptionClass, "Return value is not compatible with required type.");
			JPEnv::getHost()->prepareCallbackFinish(callbackState);
			return NULL;
		}
		
		jobject returnObj = rt->convertToJavaObject(returnValue);

		JPEnv::getHost()->prepareCallbackFinish(callbackState);

		return returnObj;

	}
	catch(HostException* ex) 
	{ 
		JPEnv::getHost()->clearError();
		if (JPEnv::getHost()->isJavaException(ex))
		{
			JPCleaner cleaner;
			HostRef* javaExcRef = JPEnv::getHost()->getJavaException(ex);
			JPObject* javaExc = JPEnv::getHost()->asObject(javaExcRef);
			cleaner.add(javaExcRef);
			jobject obj = javaExc->getObject();
			cleaner.addLocal(obj);
			JPEnv::getJava()->Throw((jthrowable)obj);
		}
		else
		{
			JPEnv::getJava()->ThrowNew(JPJni::s_RuntimeExceptionClass, "Python exception thrown");
		}
	} 
	catch(JavaException*) 
	{ 
		cerr << "Java exception at " << __FILE__ << ":" << __LINE__ << endl; 
	}
	catch(JPypeException* ex)
	{
		JPEnv::getJava()->ThrowNew(JPJni::s_RuntimeExceptionClass, ex->getMsg());
	}

	JPEnv::getHost()->prepareCallbackFinish(callbackState);

	return NULL;

	TRACE_OUT;
}