non-nullable arguments are being inferred as nullable

[drowhunter]

Problem
non-nullable arguments are being inferred as nullable

Given the following class

public class Query
    {
        public Task<User> GetUser(IResolverContext ctx, int id)
        {
            IUserRepository repo = ctx.Service<IUserRepository>();
            return repo.GetAsync(id);
        }
    }

results in the following

user(
    id: Int = null
): User

Expected behavior

user(
    id: Int!
): User

Additional context
The only way for me to specify that id should be non nullable is to override the field
descriptor.Field(f => f.GetUser(default, default)).Argument("id",d => d.Type<NonNullType<IntType>>());

[michaelstaib]

I will look into that. We have recently added a lot functionality in that area so it might be a regression bug. I will write a test for that and check it out. A fix should be ready Sunday night. Thanks for reporting this issue.

[michaelstaib]

This one is fixed now with 0.6.7.