Implementation of user-defined annotation converters

[Sigmanificient]

The idea behind this feature is to use python typing ability is order to automatically convert a argument passed as string to a custom type with a behavior defined by the user

@client.prefix_command()
async def ping(message, thing: CustomConverter):
    assert isinstance(thing, CustomConverter)  # True

This discussion is meant to forward idea on the implementation of that feature

[TheUntraceable]

This would only be applicable for prefix command btw. Unless for the Application Command we can have stuff like CustomUser, I don't know.

[EmmmaTech]

What do you mean? This could easily be extended to Slash Commands.
If you set the type of the option to str then you can do your own special parsing

[Sigmanificient]

A implementation using a register binding a Type to a command.

There is multiple pros:

• Function based so small user implementation
• Single hook store with ability to override bas hook
• Hot-swappable with function (register_arg_type, remove_arg_type, etc)
• Keep a free structure that should be maintainable & scalable

from EpikCord import User, Client

client = Client(...)


def user_converter(value):
    return CustomThing(value)

client.register_type(user_converter, CustomThing)
# client.register_type(hook=user_converter, annotation=CustomThing)


@client.prefix_command()
async def ping(message, user: CustomThing):
    ...