Register Open Generics

VContainer supports registering open generic types. This allows you to register a generic definition once and have the container automatically construct the correct concrete type when requested.

class GenericType<T> : IGenericService<T>
{
    // ...
}

// Register the open generic type
builder.Register(typeof(GenericType<>), Lifetime.Singleton)
    .AsImplementedInterfaces();

It can be resolved like this:

class SomeService
{
    // VContainer automatically creates GenericType<int>
    public SomeService(IGenericService<int> service)
    {
        /* ... */
    }
}

In this case, the concrete type GenericType<int> is constructed at runtime.

info

We have confirmed that this works with IL2CPP from Unity 2022.1 onwards. Older versions or specific strict stripping configurations may require you to ensure the generic types are preserved (e.g., using a link.xml or by using them explicitly in code).