Reloading assemblies.

[Ggjorven]

How do I reload a assembly?

I'm creating a simple game engine and want to use C# scripting and since I knew this project existed I decided to use Coral.

In my script class I load the dll using this line:
m_Assembly = s_Context.LoadAssembly(pathStr);

The 's_Context' is a global Coral::AssemblyLoadContext, so all script's can share it.
When I call the line again with the same path it gives me this error:

[Coral](Error): System.ArgumentException: An item with the same key has already been added. Key: 1723769324
   at System.Collections.Generic.Dictionary`2.TryInsert(TKey key, TValue value, InsertionBehavior behavior)
   at System.Collections.Generic.Dictionary`2.Add(TKey key, TValue value)
   at Coral.Managed.AssemblyLoader.LoadAssembly(Int32 InContextId, NativeString InAssemblyFilePath)

What is the proper way of reloading in Coral?

Thanks in advance!

[peter1745]

You first have to unload the AssemblyLoadContext by calling HostInstance::UnloadAssemblyLoadContext(s_Context), and then you have to recreate the assembly load context and load all the assemblies again

[Ggjorven]

Thanks a lot, I've tested it and works perfectly! Just a note for future people maybe looking at this post: make sure you destroy the objects that you've created from the previous assembly to avoid any warnings.

[peter1745]

Yeah it's good to clean up the objects yourself, although Coral will clean them up automatically when the ALC is unloaded. But yeah you should be cleaning them up yourself to be safe 🙂