Map complex C++ types into Nim

[jmgomez]

How do you map in Nim a function with this signature:
    
    
    
    void FunctionName(UObject* Context, FFrame& Stack, void*const Result) {..}
    
    
    
    
    Run

And then cast the type so it can be accepted as one argument only of 
FNativeFuncPtr which comes defined as:
    
    
    
    typedef void (*FNativeFuncPtr)(UObject* Context, FFrame& TheStack, 
RESULT_DECL);
    
    
    
    
    Run

So I can create a Function in nim like so
    
    
    
    proc SetNativeFunc*(ufunc: UFunction, funcPtr: FNativeFuncPtr) : void 
{.importcpp: "#->SetNativeFunc(#)", header:  "UObject/Class.h" .}
    
    
    proc NimFunctionToReplace*(context:ptr UObject, stack:ptr FFrame, 
result:ptr void)  = ....
    
    
    SetNativeFunc(NimFunctionToReplace)
    
    
    
    Run

Thanks,

Juan