从C#调用F#`printfn` [英] Call F# `printfn` from C#
本文介绍了从C#调用F#`printfn`的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
如何直接从C#代码调用F# printfn
?我看到有一个
How can I call F# printfn
directly from C# code? I see there's a
T PrintfModule.PrintFormat<T>(PrintfFormat<T, TextWriter, Unit,Unit> format)
例如,我有定义了 x
的F#程序集:
For example, I have F# assembly that defines x
:
type R = { r: R }
let rec x = { r = x }
在另一个C#程序集中,如何通过使用 PrintfModule.PrintFormatLine
printfn%A" x 等效的代码来打印 x
>?
In another C# assembly, how can I print x
by calling code that is equivalent to printfn "%A" x
with PrintfModule.PrintFormatLine
?
推荐答案
我已经创建了F#文件Program.fs:
I've created F# file Program.fs:
open System
type R = { r: R }
let rec x = { r = x }
[<EntryPoint>]
let main argv =
printfn "%A" x
0
编译它,然后反编译为C#:
compiled it and then decompiled to C#:
using Microsoft.FSharp.Core;
...
public static Program.R x {
get { return \u0024Program.x\u00406; }
}
[EntryPoint]
public static int main(string[] argv)
{
\u0024Program.init\u0040 = 0;
int init = \u0024Program.init\u0040;
ExtraTopLevelOperators
.PrintFormatLine<FSharpFunc<Program.R, Unit>>(
(PrintfFormat<FSharpFunc<Program.R, Unit>, TextWriter, Unit, Unit>)
new PrintfFormat<FSharpFunc<Program.R, Unit>, TextWriter, Unit, Unit, Program.R>("%A")).Invoke(Program.x);
return 0;
}
public sealed class R : IEquatable<Program.R>, IStructuralEquatable, IComparable<Program.R>, IComparable, IStructuralComparable
{
internal Program.R r\u0040;
public Program.R r { get { return this.r\u0040; } }
public R(Program.R r) { this.r\u0040 = r; }
}
希望它会提示您如何操作.
Hope it will give you a hint how to do that.
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