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 = new PEAPI.CILLabel[label_list.Count];
  29
  30                         foreach (object lab in label_list) {
  31                                 if (lab is string) {
  32                                         label_array[count++] = meth.GetLabelDef ((string) lab);
  33                                 } else {
  34                                         // TODO: int32 labels
  35                                         throw new NotImplementedException ("offsets in switch statements.");
  36                                 }
  37                         }
  38
  39                         cil.Switch (label_array);
  40                 }
  41         }
  42
  43 }
  44