Attribute Macro frame_support_procedural::extra_constants

#[extra_constants]

Allows you to define some extra constants to be added into constant metadata.

Item must be defined as:

#[pallet::extra_constants]
impl<T: Config> Pallet<T> where $optional_where_clause {
	/// $some_doc
	$vis fn $fn_name() -> $some_return_type {
		...
	}
	...
}

I.e. a regular rust impl block with some optional where clause and functions with 0 args, 0 generics, and some return type.

Macro expansion

The macro add some extra constants to pallet constant metadata.