// Copyright Epic Games, Inc. All Rights Reserved.

/*=============================================================================
        CoreNative.h: Native function lookup table.
=============================================================================*/

#pragma once

#include "CoreMinimal.h"
#include "UObject/Script.h"
#include "UObject/Object.h"

struct FFrame;

/** The type of a native function callable by script */
typedef void (*FNativeFuncPtr)(UObject* Context, FFrame& TheStack, RESULT_DECL);

// This class is deliberately simple (i.e. POD) to keep generated code size down.
struct FNameNativePtrPair
{
    const char* NameUTF8;
    FNativeFuncPtr Pointer;
};

extern COREUOBJECT_API FNativeFuncPtr GCasts[];
uint8 COREUOBJECT_API GRegisterCast(int32 CastCode, const FNativeFuncPtr& Func);

/** A struct that maps a string name to a native function */
struct FNativeFunctionRegistrar
{
    FNativeFunctionRegistrar(class UClass* Class, const ANSICHAR* InName, FNativeFuncPtr InPointer)
    {
        RegisterFunction(Class, InName, InPointer);
    }
    static COREUOBJECT_API void RegisterFunction(class UClass* Class, const ANSICHAR* InName, FNativeFuncPtr InPointer);
    // overload for types generated from blueprints, which can have unicode names:
    static COREUOBJECT_API void RegisterFunction(class UClass* Class, const WIDECHAR* InName, FNativeFuncPtr InPointer);

    static COREUOBJECT_API void RegisterFunctions(class UClass* Class, const FNameNativePtrPair* InArray, int32 NumFunctions);
};