Merge pull request #799 from kebby/master
[mono.git] / mcs / class / System.ServiceModel / Mono.CodeGeneration / CodeUnaryOperation.cs
1 //
2 // Permission is hereby granted, free of charge, to any person obtaining
3 // a copy of this software and associated documentation files (the
4 // "Software"), to deal in the Software without restriction, including
5 // without limitation the rights to use, copy, modify, merge, publish,
6 // distribute, sublicense, and/or sell copies of the Software, and to
7 // permit persons to whom the Software is furnished to do so, subject to
8 // the following conditions:
9 // 
10 // The above copyright notice and this permission notice shall be
11 // included in all copies or substantial portions of the Software.
12 // 
13 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
14 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
15 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
16 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
17 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
18 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
19 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
20 //
21 // Copyright (C) Lluis Sanchez Gual, 2004
22 //
23
24 #if !FULL_AOT_RUNTIME
25 using System;
26 using System.Reflection;
27 using System.Reflection.Emit;
28
29 namespace Mono.CodeGeneration
30 {
31         public class CodeNeg: CodeExpression
32         {
33                 CodeExpression exp;
34                 
35                 public CodeNeg (CodeExpression exp)
36                 {
37                         this.exp = exp;
38                         if (!exp.IsNumber)
39                                 throw new InvalidOperationException ("Operator '-' cannot be applied to operand of type '" + exp.GetResultType().FullName + "'");
40                 }
41                 
42                 public override void Generate (ILGenerator gen)
43                 {
44                         exp.Generate (gen);
45                         gen.Emit (OpCodes.Neg);
46                 }
47                 
48                 public override void PrintCode (CodeWriter cp)
49                 {
50                         cp.Write ("-");
51                         exp.PrintCode (cp);
52                 }
53                 
54                 public override Type GetResultType ()
55                 {
56                         return exp.GetResultType();
57                 }
58         }
59         
60         public class CodeNot: CodeConditionExpression
61         {
62                 CodeExpression exp;
63                 
64                 public CodeNot (CodeExpression exp)
65                 {
66                         this.exp = exp;
67                         if (exp.GetResultType() != typeof(bool))
68                                 throw new InvalidOperationException ("Operator '!' cannot be applied to operand of type '" + exp.GetResultType().FullName + "'");
69                 }
70                 
71                 public override void Generate (ILGenerator gen)
72                 {
73                         exp.Generate (gen);
74                         gen.Emit (OpCodes.Ldc_I4_0);
75                         gen.Emit (OpCodes.Ceq);
76                 }
77                 
78                 public override void GenerateForBranch (ILGenerator gen, Label label, bool branchCase)
79                 {
80                         if (exp is CodeConditionExpression) {
81                                 ((CodeConditionExpression)exp).GenerateForBranch (gen, label, !branchCase);
82                         }
83                         else {
84                                 exp.Generate (gen);
85                                 if (branchCase)
86                                         gen.Emit (OpCodes.Brfalse, label);
87                                 else
88                                         gen.Emit (OpCodes.Brtrue, label);
89                         }
90                 }
91                 
92                 public override void PrintCode (CodeWriter cp)
93                 {
94                         cp.Write ("!");
95                         exp.PrintCode (cp);
96                 }
97                 
98                 public override Type GetResultType ()
99                 {
100                         return typeof(bool);
101                 }
102         }
103 }
104 #endif