Tools/Castle.DynamicProxy2/Castle.DynamicProxy/Generators/Emitters/SimpleAST/LiteralIntExpression.cs

   1 // Copyright 2004-2008 Castle Project - http://www.castleproject.org/
   2 //
   3 // Licensed under the Apache License, Version 2.0 (the "License");
   4 // you may not use this file except in compliance with the License.
   5 // You may obtain a copy of the License at
   6 //
   7 //     http://www.apache.org/licenses/LICENSE-2.0
   8 //
   9 // Unless required by applicable law or agreed to in writing, software
  10 // distributed under the License is distributed on an "AS IS" BASIS,
  11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 // See the License for the specific language governing permissions and
  13 // limitations under the License.
  14
  15 namespace Castle.DynamicProxy.Generators.Emitters.SimpleAST
  16 {
  17         using System;
  18         using System.Reflection.Emit;
  19
  20         public class LiteralIntExpression : Expression
  21         {
  22                 private readonly int value;
  23
  24                 public LiteralIntExpression(int value)
  25                 {
  26                         this.value = value;
  27                 }
  28
  29                 public override void Emit(IMemberEmitter member, ILGenerator gen)
  30                 {
  31                         switch(value)
  32                         {
  33                                 case -1:
  34                                         gen.Emit(OpCodes.Ldc_I4_M1);
  35                                         break;
  36                                 case 0:
  37                                         gen.Emit(OpCodes.Ldc_I4_0);
  38                                         break;
  39                                 case 1:
  40                                         gen.Emit(OpCodes.Ldc_I4_1);
  41                                         break;
  42                                 case 2:
  43                                         gen.Emit(OpCodes.Ldc_I4_2);
  44                                         break;
  45                                 case 3:
  46                                         gen.Emit(OpCodes.Ldc_I4_3);
  47                                         break;
  48                                 case 4:
  49                                         gen.Emit(OpCodes.Ldc_I4_4);
  50                                         break;
  51                                 case 5:
  52                                         gen.Emit(OpCodes.Ldc_I4_5);
  53                                         break;
  54                                 case 6:
  55                                         gen.Emit(OpCodes.Ldc_I4_6);
  56                                         break;
  57                                 case 7:
  58                                         gen.Emit(OpCodes.Ldc_I4_7);
  59                                         break;
  60                                 case 8:
  61                                         gen.Emit(OpCodes.Ldc_I4_8);
  62                                         break;
  63                                 default:
  64                                         gen.Emit(OpCodes.Ldc_I4, value);
  65                                         break;
  66                         }
  67                 }
  68         }
  69 }