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fix(Lua): Correctly handle non-container Out-params in function calls #942

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fix(Lua): Correctly handle non-container Out-params in function calls #942

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bf3d5a2
fix(Lua): Correctly handle non-container Out-params in function calls
HryshcIlya Jul 7, 2025
adad947
Merge branch 'UE4SS-RE:main' into fix/lua-out-param-stack
HryshcIlya Jul 15, 2025
336ea70
Merge branch 'UE4SS-RE:main' into fix/lua-out-param-stack
HryshcIlya Jul 19, 2025
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1 change: 1 addition & 0 deletions UE4SS/src/LuaType/LuaUObject.cpp
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Expand Up @@ -199,6 +199,7 @@ namespace RC::LuaType

if (!param_next->IsA<Unreal::FStructProperty>() && !param_next->IsA<Unreal::FArrayProperty>())
{
lua.discard_value();
continue;
}
}
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2 changes: 2 additions & 0 deletions assets/Changelog.md
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Expand Up @@ -314,6 +314,8 @@ names. ([UE4SS #827](https://github.com/UE4SS-RE/RE-UE4SS/pull/827)

Fixed an error with Object properties causing stack corruption. ([UE4SS #939](https://github.com/UE4SS-RE/RE-UE4SS/pull/939)

Fixed a stack corruption issue when calling UFunctions from Lua with `Out` parameters that were not of type Struct or Array. ([UE4SS #942](https://github.com/UE4SS-RE/RE-UE4SS/pull/942))

### C++ API
Fixed a crash caused by a race condition enabled by C++ mods using `UE4SS_ENABLE_IMGUI` in their constructor ([UE4SS #481](https://github.com/UE4SS-RE/RE-UE4SS/pull/481))

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