Tools/Castle.DynamicProxy2/Castle.DynamicProxy/Generators/Emitters/CodeBuilders/ConstructorCodeBuilder.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.Generators.Emitters.CodeBuilders
  16 {
  17         using System;
  18         using System.Reflection;
  19         using System.Reflection.Emit;
  20         using Castle.DynamicProxy.Generators.Emitters.SimpleAST;
  21
  22         public class ConstructorCodeBuilder : AbstractCodeBuilder
  23         {
  24                 private readonly Type baseType;
  25
  26                 public ConstructorCodeBuilder(Type baseType, ILGenerator generator) : base(generator)
  27                 {
  28                         this.baseType = baseType;
  29                 }
  30
  31                 public void InvokeBaseConstructor()
  32                 {
  33                         InvokeBaseConstructor(ObtainDefaultConstructor());
  34                 }
  35
  36                 public void InvokeBaseConstructor(ConstructorInfo constructor)
  37                 {
  38                         AddStatement(new ConstructorInvocationStatement(constructor));
  39                 }
  40
  41                 public void InvokeBaseConstructor(ConstructorInfo constructor, params ArgumentReference[] arguments)
  42                 {
  43                         AddStatement(
  44                                 new ConstructorInvocationStatement(constructor,
  45                                                                    ArgumentsUtil.ConvertArgumentReferenceToExpression(arguments)));
  46                 }
  47
  48                 internal ConstructorInfo ObtainDefaultConstructor()
  49                 {
  50                         Type type = baseType;
  51       if (type.ContainsGenericParameters)
  52         type = type.GetGenericTypeDefinition();
  53
  54                         BindingFlags flags = BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic;
  55
  56                         return type.GetConstructor(flags, null, new Type[0], null);
  57                 }
  58         }
  59 }