Method Override

Plugins/UnLua/Source/UnLua/Private/LuaFunction.cpp:67–132

}

bool ULuaFunction::Override(UFunction* Function, UClass* Outer, FName NewName)
{
    ULuaFunction* LuaFunction;
    const auto bReplace = Function->GetOuter() == Outer;
    if (bReplace)
    {
        // ReplaceFunction
        LuaFunction = Cast<ULuaFunction>(Function);
        if (LuaFunction)
        {
            LuaFunction->Initialize();
            return true;
        }

        const auto OverriddenName = FString::Printf(TEXT("%s%s"), *Function->GetName(), OverriddenSuffix.Get());
        Function->Rename(*OverriddenName, nullptr, RenameFlags);
        Outer->AddFunctionToFunctionMap(Function, Function->GetFName());
    }
    else
    {
        // AddFunction
        if (Outer->FindFunctionByName(NewName, EIncludeSuperFlag::ExcludeSuper))
            return false;

        if (Function->HasAnyFunctionFlags(FUNC_Native))
        {
            // Need to do this before the call to DuplicateObject in the case that the super-function already has FUNC_Native
            Outer->AddNativeFunction(*NewName.ToString(), &execCallLua);
        }
    }

    FObjectDuplicationParameters DuplicationParams(Function, Outer);
    DuplicationParams.InternalFlagMask &= ~EInternalObjectFlags::Native;
    DuplicationParams.DestName = NewName;
    DuplicationParams.DestClass = StaticClass();
    LuaFunction = static_cast<ULuaFunction*>(StaticDuplicateObjectEx(DuplicationParams));
    LuaFunction->FunctionFlags |= FUNC_Native;
    LuaFunction->Overridden = Function->IsA<ULuaFunction>() ? static_cast<ULuaFunction*>(Function)->GetOverridden() : Function;
    LuaFunction->ClearInternalFlags(EInternalObjectFlags::Native);
    LuaFunction->SetNativeFunc(execCallLua);

    if (bReplace)
        LuaFunction->SetSuperStruct(Function->GetSuperStruct());
    else
        LuaFunction->SetSuperStruct(Function);

#if WITH_EDITOR
    UMetaData::CopyMetadata(Function, LuaFunction);
    Function->RemoveMetaData(NAME_CallInEditor);
#endif

    LuaFunction->StaticLink(true);
    LuaFunction->Initialize();

    Outer->AddFunctionToFunctionMap(LuaFunction, NewName);

    LuaFunction->Next = Outer->Children;
    Outer->Children = LuaFunction;