Tools/Castle.DynamicProxy2/Castle.DynamicProxy/Generators/Emitters/SimpleAST/MethodInvocationExpression.cs

   1 // Copyright 2004-2008 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.SimpleAST
  16 {
  17         using System;
  18         using System.Reflection;
  19         using System.Reflection.Emit;
  20
  21         public class MethodInvocationExpression : Expression
  22         {
  23                 protected readonly MethodInfo method;
  24                 protected readonly Expression[] args;
  25                 protected readonly Reference owner;
  26                 private bool virtualCall;
  27
  28                 public MethodInvocationExpression(MethodInfo method, params Expression[] args) :
  29                         this(SelfReference.Self, method, args)
  30                 {
  31                 }
  32
  33                 public MethodInvocationExpression(MethodEmitter method, params Expression[] args) :
  34                         this(SelfReference.Self, method.MethodBuilder, args)
  35                 {
  36                 }
  37
  38                 public MethodInvocationExpression(Reference owner, MethodEmitter method, params Expression[] args) :
  39                         this(owner, method.MethodBuilder, args)
  40                 {
  41                 }
  42
  43                 public MethodInvocationExpression(Reference owner, MethodInfo method, params Expression[] args)
  44                 {
  45                         this.owner = owner;
  46                         this.method = method;
  47                         this.args = args;
  48                 }
  49
  50                 public bool VirtualCall
  51                 {
  52                         get { return virtualCall; }
  53                         set { virtualCall = value; }
  54                 }
  55
  56                 public override void Emit(IMemberEmitter member, ILGenerator gen)
  57                 {
  58                         ArgumentsUtil.EmitLoadOwnerAndReference(owner, gen);
  59
  60                         foreach(Expression exp in args)
  61                         {
  62                                 exp.Emit(member, gen);
  63                         }
  64
  65                         if (virtualCall)
  66                         {
  67                                 gen.Emit(OpCodes.Callvirt, method);
  68                         }
  69                         else
  70                         {
  71                                 gen.Emit(OpCodes.Call, method);
  72                         }
  73                 }
  74         }
  75 }