mcs/ilasm/codegen/MethodRef.cs

   1 //
   2 // Mono.ILASM.MethodRef
   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 MethodRef : IMethodRef {
  17
  18                 private TypeRef owner;
  19                 private PEAPI.CallConv call_conv;
  20                 private ITypeRef ret_type;
  21                 private string name;
  22                 private ITypeRef[] param;
  23
  24                 private PEAPI.Method peapi_method;
  25                 private bool is_resolved;
  26                 private int gen_param_count;
  27
  28                 public MethodRef (TypeRef owner, PEAPI.CallConv call_conv,
  29                         ITypeRef ret_type, string name, ITypeRef[] param, int gen_param_count)
  30                 {
  31                         this.owner = owner;
  32                         this.call_conv = call_conv;
  33                         this.ret_type = ret_type;
  34                         this.name = name;
  35                         this.param = param;
  36                         this.gen_param_count = gen_param_count;
  37                         is_resolved = false;
  38                 }
  39
  40                 public PEAPI.Method PeapiMethod {
  41                         get { return peapi_method; }
  42                 }
  43
  44                 public PEAPI.CallConv CallConv {
  45                         get { return call_conv; }
  46                         set { call_conv = value; }
  47                 }
  48
  49                 public ITypeRef Owner {
  50                         get { return owner; }
  51                 }
  52
  53                 public void Resolve (CodeGen code_gen)
  54                 {
  55                         if (is_resolved)
  56                                 return;
  57
  58                         TypeDef owner_def = code_gen.TypeManager[owner.FullName];
  59                         if (owner_def == null)
  60                                 throw new Exception (String.Format ("Reference to undefined class '{0}'", owner.FullName));
  61
  62                         string write_name;
  63
  64                         if (name == "<init>")
  65                                 write_name = ".ctor";
  66                         else
  67                                 write_name = name;
  68
  69                         string sig;
  70
  71                         if ((call_conv & PEAPI.CallConv.Vararg) == 0) {
  72                                 sig = MethodDef.CreateSignature (ret_type, name, param, gen_param_count);
  73                                 peapi_method = owner_def.ResolveMethod (sig, code_gen);
  74                         } else {
  75                                 sig = MethodDef.CreateVarargSignature (ret_type, name, param);
  76                                 ArrayList opt_list = new ArrayList ();
  77                                 bool in_opt = false;
  78                                 foreach (ITypeRef type in param) {
  79                                         if (type is SentinelTypeRef) {
  80                                                 in_opt = true;
  81                                         } else if (in_opt) {
  82                                                 type.Resolve (code_gen);
  83                                                 opt_list.Add (type.PeapiType);
  84                                         }
  85                                 }
  86                                 peapi_method = owner_def.ResolveVarargMethod (sig, code_gen,
  87                                                 (PEAPI.Type[]) opt_list.ToArray (typeof (PEAPI.Type)));
  88                         }
  89
  90                         is_resolved = true;
  91
  92                 }
  93
  94         }
  95
  96 }
  97