C#•15mo ago

❔ generic class in generic method

im trying to have this method:

        public void AddPrefab<T, C>(C args) where T : Prefab<C> where C : PrefabArgs
        {
            T.Create(this, args);
        }

        public void AddPrefab<T, C>(C args) where T : Prefab<C> where C : PrefabArgs
        {
            T.Create(this, args);
        }

where each thing that inherits Prefab has a PrefabArgs generic type thing, like, a Prefab "player" could be Player<PlayerPrefabArgs>, and you can call this method like

AddPrefab<Player>(new PlayerPrefabArgs());

AddPrefab<Player>(new PlayerPrefabArgs());

but the problem im having is this just isnt working how id like it to, i have to do

AddPrefab<Player, PlayerPrefabArgs>(...);

AddPrefab<Player, PlayerPrefabArgs>(...);

like it doesnt know how to infer the type or something

8 Replies

mtreit•15mo ago

How could it infer the type of T when you only pass it something of type C?

nutOP•15mo ago

because i tell it T

mtreit•15mo ago

T is a placeholder for an actual type

nutOP•15mo ago

player is class Player : Prefab<PlayerPrefabArgs>

reflectronic•15mo ago

you cannot have it partially infer the generic arguments you either have to specify none of them or all of them

nutOP•15mo ago

thats annoying so this method is just either impossible or too verbose is there any other way i can do a AddPrefab<Player>(PlayerPrefabArgs)

        public void AddPrefab<T>(PrefabArgs args) where T : Prefab<PrefabArgs>
        {
            T.Create(this, args);
        }

        public void AddPrefab<T>(PrefabArgs args) where T : Prefab<PrefabArgs>
        {
            T.Create(this, args);
        }

this doesnt work either i really dont wanna do AddPrefab<Player, PlayerPrefabArgs>(new PlayerPrefabArgs) every time

Florian Voß•15mo ago

why not?

Accord•15mo ago

Was this issue resolved? If so, run /close - otherwise I will mark this as stale and this post will be archived until there is new activity.

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❔ generic class in generic method