Tools/DynamicProxy/Castle.DynamicProxy/Builder/CodeBuilder/EasyProperty.cs

   1 // Copyright 2004-2007 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.Builder.CodeBuilder
  16 {
  17         using System;
  18         using System.Reflection;
  19         using System.Reflection.Emit;
  20
  21         using Castle.DynamicProxy.Builder.CodeBuilder.SimpleAST;
  22         using Castle.DynamicProxy.Builder.CodeBuilder.Utils;
  23
  24         /// <summary>
  25         /// Summary description for EasyProperty.
  26         /// </summary>
  27         [CLSCompliant(false)]
  28         public class EasyProperty : IEasyMember
  29         {
  30                 private PropertyBuilder _builder;
  31                 private AbstractEasyType _maintype;
  32                 private EasyMethod _getMethod;
  33                 private EasyMethod _setMethod;
  34                 private ParameterInfo[] _indexParameters;
  35
  36                 public EasyProperty(AbstractEasyType maintype, String name, Type returnType)
  37                 {
  38                         _maintype = maintype;
  39                         _builder = maintype.TypeBuilder.DefineProperty(
  40                                 name, PropertyAttributes.None, returnType, new Type[0]);
  41                 }
  42
  43                 public String Name
  44                 {
  45                         get { return _builder.Name; }
  46                 }
  47
  48                 public EasyMethod CreateGetMethod()
  49                 {
  50                         return CreateGetMethod(
  51                                 MethodAttributes.Public | MethodAttributes.Virtual | MethodAttributes.SpecialName);
  52                 }
  53
  54                 public EasyMethod CreateGetMethod(MethodAttributes attrs, params Type[] parameters)
  55                 {
  56                         if (_getMethod != null)
  57                         {
  58                                 return _getMethod;
  59                         }
  60
  61                         _getMethod = new EasyMethod(_maintype, "get_" + _builder.Name,
  62                                                     attrs,
  63                                                     new ReturnReferenceExpression(ReturnType),
  64                                                     ArgumentsUtil.ConvertToArgumentReference(parameters));
  65
  66                         return _getMethod;
  67                 }
  68
  69                 public EasyMethod CreateSetMethod(Type arg)
  70                 {
  71                         return CreateSetMethod(
  72                                 MethodAttributes.Public | MethodAttributes.Virtual | MethodAttributes.SpecialName, arg);
  73                 }
  74
  75                 public EasyMethod CreateSetMethod(MethodAttributes attrs, params Type[] parameters)
  76                 {
  77                         if (_setMethod != null)
  78                         {
  79                                 return _setMethod;
  80                         }
  81
  82                         _setMethod = new EasyMethod(_maintype, "set_" + _builder.Name,
  83                                                     attrs,
  84                                                     new ReturnReferenceExpression(typeof(void)),
  85                                                     ArgumentsUtil.ConvertToArgumentReference(parameters));
  86
  87                         return _setMethod;
  88                 }
  89
  90                 #region IEasyMember Members
  91
  92                 public void Generate()
  93                 {
  94                         if (_setMethod != null)
  95                         {
  96                                 _setMethod.Generate();
  97                                 _builder.SetSetMethod(_setMethod.MethodBuilder);
  98                         }
  99
 100                         if (_getMethod != null)
 101                         {
 102                                 _getMethod.Generate();
 103                                 _builder.SetGetMethod(_getMethod.MethodBuilder);
 104                         }
 105                 }
 106
 107                 public void EnsureValidCodeBlock()
 108                 {
 109                         if (_setMethod != null)
 110                         {
 111                                 _setMethod.EnsureValidCodeBlock();
 112                         }
 113
 114                         if (_getMethod != null)
 115                         {
 116                                 _getMethod.EnsureValidCodeBlock();
 117                         }
 118                 }
 119
 120                 public MethodBase Member
 121                 {
 122                         get { return null; }
 123                 }
 124
 125                 public Type ReturnType
 126                 {
 127                         get { return _builder.PropertyType; }
 128                 }
 129
 130                 public ParameterInfo[] IndexParameters
 131                 {
 132                         get { return _indexParameters; }
 133                         set { _indexParameters = value; }
 134                 }
 135
 136                 #endregion
 137         }
 138 }