class/System.Core/System.Linq.Expressions/MethodCallExpression.cs

   1 //
   2 // MethodCallExpression.cs
   3 //
   4 // Author:
   5 //   Jb Evain (jbevain@novell.com)
   6 //
   7 // (C) 2008 Novell, Inc. (http://www.novell.com)
   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.Collections.ObjectModel;
  31 using System.Reflection;
  32 using System.Reflection.Emit;
  33
  34 namespace System.Linq.Expressions {
  35
  36         public sealed class MethodCallExpression : Expression {
  37
  38                 Expression obj;
  39                 MethodInfo method;
  40                 ReadOnlyCollection<Expression> arguments;
  41
  42                 public Expression Object {
  43                         get { return obj; }
  44                 }
  45
  46                 public MethodInfo Method {
  47                         get { return method; }
  48                 }
  49
  50                 public ReadOnlyCollection<Expression> Arguments {
  51                         get { return arguments; }
  52                 }
  53
  54                 internal MethodCallExpression (MethodInfo method, ReadOnlyCollection<Expression> arguments)
  55                         : base (ExpressionType.Call, method.ReturnType)
  56                 {
  57                         this.method = method;
  58                         this.arguments = arguments;
  59                 }
  60
  61                 internal MethodCallExpression (Expression obj, MethodInfo method, ReadOnlyCollection<Expression> arguments)
  62                         : base (ExpressionType.Call, method.ReturnType)
  63                 {
  64                         this.obj = obj;
  65                         this.method = method;
  66                         this.arguments = arguments;
  67                 }
  68
  69                 internal override void Emit (EmitContext ec)
  70                 {
  71                         ec.EmitCall (obj, arguments, method);
  72                 }
  73         }
  74 }