mcs/class/Mono.Cecil/Mono.Cecil/FunctionPointerType.cs

   1 //
   2 // FunctionPointerType.cs
   3 //
   4 // Author:
   5 //   Jb Evain (jbevain@gmail.com)
   6 //
   7 // Copyright (c) 2008 - 2010 Jb Evain
   8 //
   9 // Permission is hereby granted, free of charge, to any person obtaining
  10 // a copy of this software and associated documentation files (the
  11 // "Software"), to deal in the Software without restriction, including
  12 // without limitation the rights to use, copy, modify, merge, publish,
  13 // distribute, sublicense, and/or sell copies of the Software, and to
  14 // permit persons to whom the Software is furnished to do so, subject to
  15 // the following conditions:
  16 //
  17 // The above copyright notice and this permission notice shall be
  18 // included in all copies or substantial portions of the Software.
  19 //
  20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  27 //
  28
  29 using System;
  30 using System.Text;
  31 using Mono.Collections.Generic;
  32 using MD = Mono.Cecil.Metadata;
  33
  34 namespace Mono.Cecil {
  35
  36         public sealed class FunctionPointerType : TypeSpecification, IMethodSignature {
  37
  38                 readonly MethodReference function;
  39
  40                 public bool HasThis {
  41                         get { return function.HasThis; }
  42                         set { function.HasThis = value; }
  43                 }
  44
  45                 public bool ExplicitThis {
  46                         get { return function.ExplicitThis; }
  47                         set { function.ExplicitThis = value; }
  48                 }
  49
  50                 public MethodCallingConvention CallingConvention {
  51                         get { return function.CallingConvention; }
  52                         set { function.CallingConvention = value; }
  53                 }
  54
  55                 public bool HasParameters {
  56                         get { return function.HasParameters; }
  57                 }
  58
  59                 public Collection<ParameterDefinition> Parameters {
  60                         get { return function.Parameters; }
  61                 }
  62
  63                 public TypeReference ReturnType {
  64                         get { return function.MethodReturnType.ReturnType; }
  65                         set { function.MethodReturnType.ReturnType = value; }
  66                 }
  67
  68                 public MethodReturnType MethodReturnType {
  69                         get { return function.MethodReturnType; }
  70                 }
  71
  72                 public override string Name {
  73                         get { return function.Name; }
  74                         set { throw new InvalidOperationException (); }
  75                 }
  76
  77                 public override string Namespace {
  78                         get { return string.Empty; }
  79                         set { throw new InvalidOperationException (); }
  80                 }
  81
  82                 public override ModuleDefinition Module {
  83                         get { return ReturnType.Module; }
  84                 }
  85
  86                 public override IMetadataScope Scope {
  87                         get { return function.ReturnType.Scope; }
  88                 }
  89
  90                 public override bool IsFunctionPointer {
  91                         get { return true; }
  92                 }
  93
  94                 internal override bool ContainsGenericParameter {
  95                         get { return function.ContainsGenericParameter; }
  96                 }
  97
  98                 public override string FullName {
  99                         get {
 100                                 var signature = new StringBuilder ();
 101                                 signature.Append (function.Name);
 102                                 signature.Append (" ");
 103                                 signature.Append (function.ReturnType.FullName);
 104                                 signature.Append (" *");
 105                                 this.MethodSignatureFullName (signature);
 106                                 return signature.ToString ();
 107                         }
 108                 }
 109
 110                 public FunctionPointerType ()
 111                         : base (null)
 112                 {
 113                         this.function = new MethodReference ();
 114                         this.function.Name = "method";
 115                         this.etype = MD.ElementType.FnPtr;
 116                 }
 117         }
 118 }