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Support interactive console return value to output by nullbus · Pull Request #629 · 20tab/UnrealEnginePython · GitHub

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Support interactive console return value to output #629

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Support interactive console return value to output #629

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9 changes: 6 additions & 3 deletions Source/PythonConsole/Private/SPythonLog.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -238,7 +238,8 @@ void SPythonConsoleInputBox::OnTextCommitted(const FText& InText, ETextCommit::T
else
{
IsMultiline = false;
PythonModule.RunString(TCHAR_TO_UTF8(*MultilineString));
FString ret_str = PythonModule.RunString(TCHAR_TO_UTF8(*MultilineString));
UE_LOG(LogTemp, Log, TEXT("%s"), *ret_str);
}
}
else if (ExecString.EndsWith(":"))
Expand All @@ -248,15 +249,17 @@ void SPythonConsoleInputBox::OnTextCommitted(const FText& InText, ETextCommit::T
}
else
{
PythonModule.RunString(TCHAR_TO_UTF8(*ExecString));
FString ret_str = PythonModule.RunString(TCHAR_TO_UTF8(*ExecString));
UE_LOG(LogTemp, Log, TEXT("%s"), *ret_str);
}

}
else if (IsMultiline)
{
IsMultiline = false;
FUnrealEnginePythonModule &PythonModule = FModuleManager::GetModuleChecked<FUnrealEnginePythonModule>("UnrealEnginePython");
PythonModule.RunString(TCHAR_TO_UTF8(*MultilineString));
FString ret_str = PythonModule.RunString(TCHAR_TO_UTF8(*MultilineString));
UE_LOG(LogTemp, Log, TEXT("%s"), *ret_str);
}

}
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50 changes: 39 additions & 11 deletions Source/UnrealEnginePython/Private/UnrealEnginePython.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -547,22 +547,35 @@ void FUnrealEnginePythonModule::ShutdownModule()
}
}

void FUnrealEnginePythonModule::RunString(char *str)
FString FUnrealEnginePythonModule::RunString(char *str)
{
FScopePythonGIL gil;

PyObject *eval_ret = PyRun_String(str, Py_file_input, (PyObject *)main_dict, (PyObject *)local_dict);
PyObject *eval_ret = PyRun_String(str, Py_single_input, (PyObject *)main_dict, (PyObject *)local_dict);
if (!eval_ret)
{
if (PyErr_ExceptionMatches(PyExc_SystemExit))
{
PyErr_Clear();
return;
return "";
}
unreal_engine_py_log_error();
return;
return "";
}

FString ue4_str_ret;
if (eval_ret != Py_None)
{
PyObject *stringified = PyObject_Str(eval_ret);
if (!stringified)
return "argument cannot be casted to string";

ue4_str_ret = UTF8_TO_TCHAR(UEPyUnicode_AsUTF8(stringified));
}

Py_DECREF(eval_ret);

return ue4_str_ret;
}

#if PLATFORM_MAC
Expand Down Expand Up @@ -626,7 +639,7 @@ FString FUnrealEnginePythonModule::Pep8ize(FString Code)
}


void FUnrealEnginePythonModule::RunFile(char *filename)
FString FUnrealEnginePythonModule::RunFile(char *filename)
{
FScopePythonGIL gil;
FString full_path = UTF8_TO_TCHAR(filename);
Expand All @@ -652,7 +665,7 @@ void FUnrealEnginePythonModule::RunFile(char *filename)
if (!foundFile)
{
UE_LOG(LogPython, Error, TEXT("Unable to find file %s"), UTF8_TO_TCHAR(filename));
return;
return "";
}

#if PY_MAJOR_VERSION >= 3
Expand All @@ -662,14 +675,14 @@ void FUnrealEnginePythonModule::RunFile(char *filename)
if (fopen_s(&fd, TCHAR_TO_UTF8(*full_path), "r") != 0)
{
UE_LOG(LogPython, Error, TEXT("Unable to open file %s"), *full_path);
return;
return "";
}
#else
fd = fopen(TCHAR_TO_UTF8(*full_path), "r");
if (!fd)
{
UE_LOG(LogPython, Error, TEXT("Unable to open file %s"), *full_path);
return;
return "";
}
#endif

Expand All @@ -680,12 +693,20 @@ void FUnrealEnginePythonModule::RunFile(char *filename)
if (PyErr_ExceptionMatches(PyExc_SystemExit))
{
PyErr_Clear();
return;
return "";
}
unreal_engine_py_log_error();
return;
return "";
}

PyObject *stringified = PyObject_Str(eval_ret);
if (!stringified)
return "argument cannot be casted to string";

FString ue4_string = UTF8_TO_TCHAR(UEPyUnicode_AsUTF8(stringified));
Py_DECREF(eval_ret);

return ue4_string;
#else
// damn, this is horrible, but it is the only way i found to avoid the CRT error :(
FString command = FString::Printf(TEXT("execfile(\"%s\")"), *full_path);
Expand All @@ -698,8 +719,15 @@ void FUnrealEnginePythonModule::RunFile(char *filename)
return;
}
unreal_engine_py_log_error();
return;
return "";
}

PyObject *stringified = PyObject_Str(eval_ret);
if (!stringified)
return "argument cannot be casted to string";

FString ue4_string = UTF8_TO_TCHAR(UEPyUnicode_AsUTF8(stringified));
return ue4_string;
#endif

}
Expand Down
4 changes: 2 additions & 2 deletions Source/UnrealEnginePython/Public/UnrealEnginePython.h
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Original file line number Diff line number Diff line change
Expand Up @@ -104,8 +104,8 @@ class UNREALENGINEPYTHON_API FUnrealEnginePythonModule : public IModuleInterface
virtual void StartupModule() override;
virtual void ShutdownModule() override;

void RunString(char *);
void RunFile(char *);
FString RunString(char *);
FString RunFile(char *);

#if PLATFORM_MAC
void RunStringInMainThread(char *);
Expand Down
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