Comments (5)
Maybe, but very few builtin methods take such a parameter. I can think of Enumerable#find
(which is currently badly defined)
Note that the return type should not be void
but top
. Also the interface should not depend on []
:
interface _Call
def call: (*top) -> top
end
Still, it might be best not to, since the above interface is too lax, usually you will want to specify the type of inputs the call
method should be expecting.
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In the benefit of understanding, what does "top" stand for? I struggled a bit with the meaning of it.
Perhaps you're right, but a Callable with a T reference seems more suitable to my example. All things considered I might backtrack a bit on this until I come up with compelling use cases.
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If you have a specific method in your mind, like Enumerable#find
, defining an interface would be better.
interface _NotFound[A]
def call: () -> A
end
module Enumerable[X, Y]
def find: [T] (_NotFound[T]) -> (X | T)
...
end
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I had this in mind: https://docs.python.org/3/library/typing.html#callable
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After thinking more about this, I think that I do not necessarily want a Callable interface, rather an "inline" way of saying "something implementing #call", i.e. I think that rbs could have syntactic sugar for defining these 1 method-interfaces.
def callables: () -> Array[Imp[call:(*untyped) -> top]]
How that would look like, I have no idea :)
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