mcs/ilasm/codegen/SwitchInstr.cs

   1 //
   2 // Mono.ILASM.SwitchInstr
   3 //
   4 // Author(s):
   5 //  Jackson Harper (Jackson@LatitudeGeo.com)
   6 //
   7 // (C) 2003 Jackson Harper, All rights reserved
   8 //
   9
  10
  11 using System;
  12 using System.Collections;
  13
  14 namespace Mono.ILASM {
  15
  16         public class SwitchInstr : IInstr {
  17
  18                 private ArrayList label_list;
  19
  20                 public SwitchInstr (ArrayList label_list)
  21                 {
  22                         this.label_list = label_list;
  23                 }
  24
  25                 public void Emit (CodeGen code_gen, MethodDef meth, PEAPI.CILInstructions cil)
  26                 {
  27                         int count = 0;
  28                         PEAPI.CILLabel[] label_array;
  29
  30                         if (label_list != null) {
  31                                 label_array = new PEAPI.CILLabel[label_list.Count];
  32                                 foreach (object lab in label_list) {
  33                                         if (lab is string) {
  34                                                 label_array[count++] = meth.GetLabelDef ((string) lab);
  35                                         } else {
  36                                                 throw new NotImplementedException ("offsets in switch statements.");
  37                                         }
  38                                 }
  39                         } else {
  40                                 label_array = new PEAPI.CILLabel [0];
  41                         }
  42
  43                         cil.Switch (label_array);
  44                 }
  45         }
  46
  47 }
  48