How to define a F# abstract member with empty type-signature
Question
According to this page, all abstract members of a class must have a type-signature
. But I want to define a abstract class that has void input parameter and void return type. And void
is not valid keyword in this context.
Solution
In F#, you typically use the unit
type where you would use the void
keyword in C#. So an example of what you're looking for would be:
[<AbstractClass>]
type MyAbstractClass() =
abstract MyMethod : unit -> unit
type MyDerivedClass() =
inherit MyAbstractClass()
override this.MyMethod() = printf "Do something here..."
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