using System;

namespace Tests
{
	class Mixins
	{
		class MixClass
		{
			public int mA = 100;
			public static int sA = 200;

			public mixin MixA(var addTo)
			{
				mA += addTo;
			}

			public mixin MixB(var addTo)
			{
				void AddIt()
				{
					mA += addTo;
				}

				AddIt();
			}

			public static mixin MixC(var val)
			{
				val + sA
			}
		}

		[Test]
		public static void TestBasics()
		{
			MixClass mc = scope MixClass();
			mc.MixA!(10);
			Test.Assert(mc.mA == 110);
			mc.MixB!(10);
			Test.Assert(mc.mA == 120);
			Test.Assert(MixClass.MixC!(30) == 230);
		}

		[Test]
		public static void TestLocalMixin()
		{
			mixin AppendAndNullify(String str)
			{
				int a = 1;
				a++;
				str.Append("B");
				str = null;
			}

			int a = 2;
			a++;

			String str0 = scope String("A");
			String str1 = str0;

			AppendAndNullify!(str0);
			Test.Assert(str0 == null);
			Test.Assert(str1 == "AB");
		}

	}
}