Initial import.

T0/TPointerBase.cs

@@ -0,0 +1,64 @@
+/*
+ * Copyright (c) 2016 Thomas Pornin <pornin@bolet.org>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining 
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be 
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+using System;
+using System.Collections.Generic;
+
+class TPointerBase {
+
+	/* obsolete
+	internal virtual TValue Get(TValue vp)
+	{
+		throw new Exception(
+			"cannot get values from this pointer");
+	}
+
+	internal virtual void Set(TValue vp, TValue nval)
+	{
+		throw new Exception(
+			"cannot set values to this pointer");
+	}
+	*/
+
+	internal virtual bool ToBool(TValue vp)
+	{
+		return true;
+	}
+
+	internal virtual void Execute(T0Comp ctx, CPU cpu)
+	{
+		throw new Exception("value is not an xt: " + ToString());
+	}
+
+	internal virtual string ToString(TValue vp)
+	{
+		return String.Format("{0}+{1}",
+			GetType().Name, vp.x);
+	}
+
+	internal virtual bool Equals(TPointerBase tp)
+	{
+		return this == tp;
+	}
+}