Playground

Write Antril, run it in your browser and share it with a link. Programs are compiled to WebAssembly and run on your machine, not on the server.

import System;

into namespace Gen
{
	public class Box<T>
	{
		T item;

		public:
			new(T item) { this.item = item; }
			Get() : T => item;
	}

	public static class Counter
	{
		public:
			static i32 Start;
			static new() { Start = 40; }
	}

	First<T>(T[] items) : T => items[0];

	Twice<T : INumber<T>>(T x) : T => x + x;

	AddChecked(i32 a, i32 b) : i32 => checked(a + b);

	Main()
	{
		Box<str> b = new Box<str>("hi");
		Console.WriteLine(b.Get());
		Console.WriteLine(First<i32>([1, 2, 3]));
		Console.WriteLine(Twice<i32>(21));
		Console.WriteLine(AddChecked(Counter.Start, 2));
		any boxed = 42;
		Console.WriteLine(boxed);
	}
}

Output

Press Run (or Ctrl+Enter) to compile and run the program.

Input

What Console.ReadLine() reads, one line at a time.

Ctrl+Enter runs. Tab indents (Shift+Tab outdents); press Esc, then Tab, to leave the editor. A program may run for 10 seconds.