Please help with this very simple native library

[iahung2]

objeck-lang/core/compiler/lib_src/foo.obs

use System.API;

bundle Foo {
	class Proxy {
		@lib_proxy : static : DllProxy;
		
		function : GetDllProxy() ~ DllProxy {
			if(@lib_proxy = Nil) {
				@lib_proxy := DllProxy->New("libobjk_foo");
			};

			return @lib_proxy;
		}
	}
	
	class Test {
		function : Add(x: Int, y: Int) ~ Int {
			array_args := Base->New[3];
			array_args[0] := IntRef->New();
			array_args[1] := IntRef->New(x);
			array_args[2] := IntRef->New(y);
			Proxy->GetDllProxy()->CallFunction("test_func", array_args);
			value := array_args[0]->As(IntRef);
			return value->Get();
		}
	}
}

Compiled with obc -src foo.obs -tar lib -dest foo.obl

foo.obl is moved into objeck-lang/core/release/deploy-msys2-clang/lib

objeck-lang/core/lib/foo/foo.cpp

#include "../../vm/lib_api.h"
#include "../../shared/sys.h"

extern "C" {
	void test_func(VMContext& context) {
		const auto x = APITools_GetIntValue(context, 1);
		const auto y = APITools_GetIntValue(context, 2);
		APITools_SetIntValue(context, 0, x + y);
	}
}

Build script: objeck-lang/core/lib/foo/build_msys2-clang.sh

#/bin/sh
rm -rf *.o
rm -rf *.dll

clang++ -O3 -Wall -std=c++17 -fPIC -c *$1.cpp -Wno-unused-function -Wno-int-to-void-pointer-cast
clang++ -O3 -shared -Wl,-undefined,dynamic_lookup -o $1.dll *.o

Build command: ./build_msys2-clang.sh foo and mv foo.dll libobjk_foo.dll

libobjk_foo.dll is moved into objeck-lang/core/release/deploy-msys2-clang/lib/native

Test program:

use Foo;

class Hello {
  function : Main(args : String[]) ~ Nil {
    Foo.Test->Add(1, 2)->PrintLine();
  }
}

Compiled with: obc -src bar.obs -lib foo

I have no idea why it's always failed with >>> Runtime error calling function: load_lib <<< when I run the program with obr bar.

[iahung2]

Missing load_lib and unload_lib. I used to think they are optional.

#include "../../vm/lib_api.h"
#include "../../shared/sys.h"

extern "C" {

	//
	// initialize library
	//
#ifdef _WIN32
	__declspec(dllexport)
#endif
	void load_lib(VMContext& context) {
	}

	//
	// release library
	//
#ifdef _WIN32
	__declspec(dllexport)
#endif
	void unload_lib() {
	}

#ifdef _WIN32
	__declspec(dllexport)
#endif
	void test_func(VMContext& context) {
		const auto x = APITools_GetIntValue(context, 1);
		const auto y = APITools_GetIntValue(context, 2);
		APITools_SetIntValue(context, 0, x + y);
	}
}