I would like to implement loading functions from external DLL's, in a syntax such as this:

[Dll file="Test.dll"]
external void DoSomething();

Currently, the external keyword requires that the function be defined in a module already before this declaration is compiled (since it's (implicitly?) a shared function), which breaks my ability to get the metadata from CScriptBuilder about the function.

My suggestion is to have a callback function for external functions where I can resolve the function manually, possibly referring it to some asCALL_GENERIC function that handles the dll call.

Perhaps this should be implemented in the CScriptBuilder addon rather than the library itself, since that holds the info on the metadata above the declaration.

Any tips/workarounds would be nice to hear as well.

And maybe we could load library in similar way just like:

#pragma library("foo.dll")

and suppose there is a function "void InitializeLibrary(asIScriptEngine* engine)" in the dll, so we can register types and functions in the function.

That would be very nice too. I'd love to have such a thing as an addon if you end up putting it in asrun!

Hmm, the problem with the #pragma approach is that if you have multiple modules, registering a function will be available to each module rather than only 1 module. Is there anything that can be done about that?

Thank you, I'll experiment with this.