eliminate "Failed to bind native function" warnings when overriding 'native' blueprint events.

rowechien · rowechien · commit fe32d9816a14 · 2020-04-19T14:45:20.000+08:00
diff --git a/Plugins/UnLua/Source/UnLua/Private/UnLuaManager.cpp b/Plugins/UnLua/Source/UnLua/Private/UnLuaManager.cpp
@@ -754,6 +754,12 @@ void UUnLuaManager::AddFunction(UFunction *TemplateFunction, UClass *OuterClass,
     UFunction *Func = OuterClass->FindFunctionByName(NewFuncName, EIncludeSuperFlag::ExcludeSuper);
     if (!Func)
     {
+        if (TemplateFunction->HasAnyFunctionFlags(FUNC_Native))
+        {
+            // call this before duplicate UFunction that has FUNC_Native to eliminate "Failed to bind native function" warnings.
+            OuterClass->AddNativeFunction(*NewFuncName.ToString(), (FNativeFuncPtr)&FLuaInvoker::execCallLua);
+        }
+
         UFunction *NewFunc = DuplicateUFunction(TemplateFunction, OuterClass, NewFuncName); // duplicate a UFunction
         if (!NewFunc->HasAnyFunctionFlags(FUNC_Native) && NewFunc->Script.Num() > 0)
         {

Original file line number	Diff line number	Diff line change
`@@ -754,6 +754,12 @@ void UUnLuaManager::AddFunction(UFunction TemplateFunction, UClass OuterClass,`
`754`	`754`	`UFunction *Func = OuterClass->FindFunctionByName(NewFuncName, EIncludeSuperFlag::ExcludeSuper);`
`755`	`755`	`if (!Func)`
`756`	`756`	`{`
	`757`	`+ if (TemplateFunction->HasAnyFunctionFlags(FUNC_Native))`
	`758`	`+ {`
	`759`	`+ // call this before duplicate UFunction that has FUNC_Native to eliminate "Failed to bind native function" warnings.`
	`760`	`+ OuterClass->AddNativeFunction(*NewFuncName.ToString(), (FNativeFuncPtr)&FLuaInvoker::execCallLua);`
	`761`	`+ }`
	`762`	`+`
`757`	`763`	`UFunction *NewFunc = DuplicateUFunction(TemplateFunction, OuterClass, NewFuncName); // duplicate a UFunction`
`758`	`764`	`if (!NewFunc->HasAnyFunctionFlags(FUNC_Native) && NewFunc->Script.Num() > 0)`
`759`	`765`	`{`