xref: /freebsd/contrib/bearssl/T0/TPointerBase.cs (revision 61e21613)
1 /*
2  * Copyright (c) 2016 Thomas Pornin <pornin@bolet.org>
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining
5  * a copy of this software and associated documentation files (the
6  * "Software"), to deal in the Software without restriction, including
7  * without limitation the rights to use, copy, modify, merge, publish,
8  * distribute, sublicense, and/or sell copies of the Software, and to
9  * permit persons to whom the Software is furnished to do so, subject to
10  * the following conditions:
11  *
12  * The above copyright notice and this permission notice shall be
13  * included in all copies or substantial portions of the Software.
14  *
15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
19  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
20  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
21  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22  * SOFTWARE.
23  */
24 
25 using System;
26 using System.Collections.Generic;
27 
28 class TPointerBase {
29 
30 	/* obsolete
31 	internal virtual TValue Get(TValue vp)
32 	{
33 		throw new Exception(
34 			"cannot get values from this pointer");
35 	}
36 
37 	internal virtual void Set(TValue vp, TValue nval)
38 	{
39 		throw new Exception(
40 			"cannot set values to this pointer");
41 	}
42 	*/
43 
44 	internal virtual bool ToBool(TValue vp)
45 	{
46 		return true;
47 	}
48 
49 	internal virtual void Execute(T0Comp ctx, CPU cpu)
50 	{
51 		throw new Exception("value is not an xt: " + ToString());
52 	}
53 
54 	internal virtual string ToString(TValue vp)
55 	{
56 		return String.Format("{0}+{1}",
57 			GetType().Name, vp.x);
58 	}
59 
60 	internal virtual bool Equals(TPointerBase tp)
61 	{
62 		return this == tp;
63 	}
64 }
65