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How do you implement the equivalent of C#'s explicit operator in F#? Is it supported?
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The Implicit Operator According to MSDN, an implicit keyword is used to declare an implicit user-defined type conversion operator. In other words, this gives the power to your C# class, which can accepts any reasonably convertible data type without type casting.
Implicit conversion is the conversion in which a derived class is converted into a base class like int into a float type. Explicit conversion is the conversion that may cause data loss. Explicit conversion converts the base class into the derived class.
Use the operator and implicit or explicit keywords to define an implicit or explicit conversion, respectively. The type that defines a conversion must be either a source type or a target type of that conversion. A conversion between two user-defined types can be defined in either of the two types.
Just implement an op_Explicit static member like
type SomeType() =
static member op_Explicit(source: SomeType) : int =
1
and then you can use a corresponding F# explicit conversion operator like
SomeType() |> int
you can see a bit into how this works by noting the static member constraint on the type signature of int
^a -> int when ^a : (static member op_Explicit : ^a -> int)
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