C# Infix Op.cs

using System;

Func<int, int, int> addImpl = (a, b) => a + b;
var add = Infix.Create(addImpl);

Console.WriteLine(41 |add| 1);

public class Infix<T1, T2, TResult> {
    public Func<T1, T2, TResult> Op;
     public static Infix<T2, TResult> operator |
         (T1 arg0, Infix<T1, T2, TResult> op)
         => new (arg => op.Op(arg0, arg));
}                                                               

public class Infix<T, TResult> {
    public Func<T, TResult> Op {get;}
    public Infix(Func<T, TResult> op) {
        this.Op = op;
    }
    public static TResult operator |
        (Infix<T, TResult> op, T arg)
        => op.Op(arg);
}

public static class Infix {
    public static Infix<T1, T2, TResult> Create<T1, T2, TResult>(Func<T1, T2, TResult> op)
        => new Infix<T1, T2, TResult>{ Op = op };
}

​C# Infix Op.output.txt

42

​​.sharplab.json

{
    "version": 1,
    "target": "Run",
    "mode": "Debug"
}