static PyObject *py_ue_uscriptstruct_get_field(ue_PyUScriptStruct *self, PyObject * args)
{
char *name;
int index = 0;
if (!PyArg_ParseTuple(args, "s|i:get_field", &name, &index))
{
return nullptr;
}
UProperty *u_property = self->u_struct->FindPropertyByName(FName(UTF8_TO_TCHAR(name)));
if (!u_property)
return PyErr_Format(PyExc_Exception, "unable to find property %s", name);
return ue_py_convert_property(u_property, self->data, index);
}
static PyObject *ue_PyUScriptStruct_getattro(ue_PyUScriptStruct *self, PyObject *attr_name)
{
PyObject *ret = PyObject_GenericGetAttr((PyObject *)self, attr_name);
if (!ret)
{
if (PyUnicodeOrString_Check(attr_name))
{
char *attr = PyUnicode_AsUTF8(attr_name);
// first check for property
UProperty *u_property = get_field_from_name(self->u_struct, attr);
if (u_property)
{
// swallow previous exception
PyErr_Clear();
return ue_py_convert_property(u_property, self->data, 0);
}
}
}
return ret;
}
PyObject *py_ue_uscriptstruct_as_dict(ue_PyUScriptStruct * self, PyObject * args)
{
PyObject *py_bool = nullptr;
if (!PyArg_ParseTuple(args, "|O:as_dict", &py_bool))
{
return nullptr;
}
static const FName DisplayNameKey(TEXT("DisplayName"));
PyObject *py_struct_dict = PyDict_New();
TFieldIterator<UProperty> SArgs(self->u_struct);
for (; SArgs; ++SArgs)
{
PyObject *struct_value = ue_py_convert_property(*SArgs, self->data, 0);
if (!struct_value)
{
Py_DECREF(py_struct_dict);
return NULL;
}
FString prop_name = SArgs->GetName();
#if WITH_EDITOR
if (py_bool && PyObject_IsTrue(py_bool))
{
if (SArgs->HasMetaData(DisplayNameKey))
{
FString display_name = SArgs->GetMetaData(DisplayNameKey);
if (display_name.Len() > 0)
prop_name = display_name;
}
}
#endif
PyDict_SetItemString(py_struct_dict, TCHAR_TO_UTF8(*prop_name), struct_value);
}
return py_struct_dict;
}
void UPythonFunction::CallPythonCallable(FFrame& Stack, RESULT_DECL)
{
FScopePythonGIL gil;
UPythonFunction *function = static_cast<UPythonFunction *>(Stack.CurrentNativeFunction);
bool on_error = false;
bool is_static = function->HasAnyFunctionFlags(FUNC_Static);
// count the number of arguments
Py_ssize_t argn = (Stack.Object && !is_static) ? 1 : 0;
TFieldIterator<UProperty> IArgs(function);
for (; IArgs && ((IArgs->PropertyFlags & (CPF_Parm | CPF_ReturnParm)) == CPF_Parm); ++IArgs) {
argn++;
}
#if defined(UEPY_MEMORY_DEBUG)
UE_LOG(LogPython, Warning, TEXT("Initializing %d parameters"), argn);
#endif
PyObject *py_args = PyTuple_New(argn);
if (Stack.Object && !is_static) {
PyObject *py_obj = (PyObject *)ue_get_python_wrapper(Stack.Object);
if (!py_obj) {
unreal_engine_py_log_error();
on_error = true;
}
else {
Py_INCREF(py_obj);
PyTuple_SetItem(py_args, 0, py_obj);
}
}
uint8 *frame = Stack.Locals;
argn = (Stack.Object && !is_static) ? 1 : 0;
// is it a blueprint call ?
if (*Stack.Code == EX_EndFunctionParms) {
for (UProperty *prop = (UProperty *)function->Children; prop; prop = (UProperty *)prop->Next) {
if (prop->PropertyFlags & CPF_ReturnParm)
continue;
if (!on_error) {
PyObject *arg = ue_py_convert_property(prop, (uint8 *)Stack.Locals);
if (!arg) {
unreal_engine_py_log_error();
on_error = true;
}
else {
PyTuple_SetItem(py_args, argn++, arg);
}
}
}
}
else {
//UE_LOG(LogPython, Warning, TEXT("BLUEPRINT CALL"));
frame = (uint8 *)FMemory_Alloca(function->PropertiesSize);
FMemory::Memzero(frame, function->PropertiesSize);
for (UProperty *prop = (UProperty *)function->Children; *Stack.Code != EX_EndFunctionParms; prop = (UProperty *)prop->Next) {
Stack.Step(Stack.Object, prop->ContainerPtrToValuePtr<uint8>(frame));
if (prop->PropertyFlags & CPF_ReturnParm)
continue;
if (!on_error) {
PyObject *arg = ue_py_convert_property(prop, frame);
if (!arg) {
unreal_engine_py_log_error();
on_error = true;
}
else {
PyTuple_SetItem(py_args, argn++, arg);
}
}
}
}
Stack.Code++;
if (on_error || !function->py_callable) {
Py_DECREF(py_args);
return;
}
PyObject *ret = PyObject_CallObject(function->py_callable, py_args);
Py_DECREF(py_args);
if (!ret) {
unreal_engine_py_log_error();
return;
}
// get return value (if required)
UProperty *return_property = function->GetReturnProperty();
if (return_property && function->ReturnValueOffset != MAX_uint16) {
#if defined(UEPY_MEMORY_DEBUG)
UE_LOG(LogPython, Warning, TEXT("FOUND RETURN VALUE"));
#endif
if (ue_py_convert_pyobject(ret, return_property, frame)) {
// copy value to stack result value
FMemory::Memcpy(RESULT_PARAM, frame + function->ReturnValueOffset, return_property->ArrayDim * return_property->ElementSize);
}
else {
UE_LOG(LogPython, Error, TEXT("Invalid return value type for function %s"), *function->GetFName().ToString());
}
}
Py_DECREF(ret);
}
