yacq-sample.cs

using System;
using System.Linq;
using System.Linq.Expressions;
using XSpect.Yacq.LanguageServices;

namespace yacqrun
{
    class Program
    {
        static void Main(string[] args)
        {
            var result = ((Expression<Func<int, Func<int, Func<int, int>>>>) new Reader(@"
; this is comment (to end of line)
; All parameters is typed as System.Int32, yet.
; Following code returns x => y => z => x + y + z .
(\ [x] (\ [y] (\ [z] (+ x y z))))"
            )
                // This is just a charm, or like an idiom. Don't care.
                .Read()
                .Select(e => e.Reduce())
                .ToArray()
                .Last()
            ).Compile()
                // Invoke!
                (100)(20)(3);
            // Output the result with Console class.
            ((Expression<Action<int>>) new Reader(@"
(import-type Console 'System.Console') ; import System.Console class as ID 'Console'
(\ [x] (Console.(WriteLine x)))"
            ).Read().Select(e => e.Reduce()).ToArray().Last()).Compile()(result);
        }
    }
}