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 OpcodeJumpUncond : OpcodeJump {
29 
30 	internal OpcodeJumpUncond() : base()
31 	{
32 	}
33 
34 	internal OpcodeJumpUncond(int disp) : base(disp)
35 	{
36 	}
37 
38 	/*
39 	 * Unconditional jumps do not "fall through" unless they
40 	 * happen to be a jump to the next instruction...
41 	 */
42 	internal override bool MayFallThrough {
43 		get {
44 			return JumpDisp == 0;
45 		}
46 	}
47 
48 	internal override CodeElement ToCodeElement()
49 	{
50 		return new CodeElementJump(4);
51 	}
52 
53 	public override string ToString()
54 	{
55 		if (JumpDisp == Int32.MinValue) {
56 			return "jump UNRESOLVED";
57 		} else {
58 			return "jump disp=" + JumpDisp;
59 		}
60 	}
61 }
62