C# function wrapper

Simple F# wrapper for C# methods.

Wrapping methods which can throw an Exception.

Import FInvoke.Result module.

open FInvoke.Result

Wrapping methods with void as a return type:

let deleteFile: string -> Result<unit, Exception> = invoke File.Delete

let test () =
    match deleteFile "file.ext" with
    | Ok result -> result
    | Error error -> Debug.Fail(error.Message)

Wrapping methods without arguments:

let getRandomFileName: unit -> Result<string, Exception> = invoke Path.GetRandomFileName

let test () =
    match getRandomFileName () with
    | Ok name -> Debug.Assert(name.Contains("."))
    | Error error -> Debug.Fail(error.Message)

Wrapping methods with one argument:

let getFileName: string -> Result<string, Exception> = invoke Path.GetFileName

let test () =
    match getFileName @"root\file.ext" with
    | Ok name -> Debug.Assert("file.ext" = name)
    | Error error -> Debug.Fail(error.Message)

Wrapping methods with two arguments:

let combine2: string -> string -> Result<string, Exception> = invoke2 Path.Combine

let test () =
    match combine2 "root" "file.ext" with
    | Ok name -> Debug.Assert(@"root\file.ext" = name)
    | Error error -> Debug.Fail(error.Message)

Wrapping methods with three arguments:

let combine3: string -> string -> string -> Result<string, Exception> = invoke3 Path.Combine

let test () =
    match combine3 "root" "folder" "file.ext" with
    | Ok name -> Debug.Assert(@"root\folder\file.ext" = name)
    | Error error -> Debug.Fail(error.Message)

And so on...

Wrapping methods which don't throw an Exception, or you don't care.

Import FInvoke.Object module.

open FInvoke.Object

Wrapping methods with void as a return type:

let deleteFile: string -> unit = invoke File.Delete

let result = deleteFile "file.ext"

Debug.Assert(() = result)

Wrapping methods without arguments:

let getRandomFileName: unit -> string = invoke Path.GetRandomFileName

let name = getRandomFileName ()

Debug.Assert(name.Contains("."))

Wrapping methods with one argument:

let getFileName: string -> string = invoke Path.GetFileName

let name = getFileName @"root\file.ext"

Debug.Assert("file.ext" = name)

Wrapping methods with two arguments:

let combine2: string -> string -> string = invoke2 Path.Combine

let name = combine2 "root" "file.ext"

Debug.Assert(@"root\file.ext" = name)

Wrapping methods with three arguments:

let combine3: string -> string -> string -> string = invoke3 Path.Combine

let name = combine3 "root" "folder" "file.ext"

Debug.Assert(@"root\folder\file.ext" = name)

And so on...