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Named parameters in an interface?
f#

If I define an interface like this:

type IFoo =
interface
abstract Method: int*string -> string
end

then the resulting signature (as seen in reflector) is

interface IFoo
{
string Method( int, string );
}

Note absence of parameter names (well, I did not specify any, did I).
When I try to expose this interface as a WCF contract, WCF does not like it. It is not designed for parameters without a name, and throws an ArgumentNullException.

Question: how do I define parameter names for an interface method?

abstract member Method(x:int, y:string) -> string

does not work

TIA

.

type IFoo =
interface
abstract MyMethod: parameterA:int * parameterB:string -> string
end

You just defined a method named MyMethod with two paramters, paramterA and parameterB. The method returns type is string.

By on 2/8/2009 10:32 PM ()

Yes, I too was bitten by this when trying to use F# and WCF. You can name your parameters if you want to:

1
2
3

type IFoo = interface
    abstract Method: foo:int * bar:string -> string
end
By on 7/22/2008 12:44 AM ()

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