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Looking for a C# => Linq Expression compiler
public static int Add(int a, int b)
{
   return a + b;
}

ParameterExpression a = Expression.Parameter(typeof(int), "a");
    ParameterExpression b = Expression.Parameter(typeof(int), "b");
    Expression<Func<int, int, int>> expectedExpression = Expression.Lambda<Func<int, int, int>>(
            Expression.Add(a,b),
            a,
            b
        );

Expression<Func<int,int,int>> expr = (a,b) => a + b;