2 // MemberAssignement.cs
5 // Jb Evain (jbevain@novell.com)
7 // (C) 2008 Novell, Inc. (http://www.novell.com)
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:
17 // The above copyright notice and this permission notice shall be
18 // included in all copies or substantial portions of the Software.
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.
30 using System.Reflection;
31 using System.Reflection.Emit;
34 namespace System.Linq.Expressions {
36 public sealed class MemberAssignment : MemberBinding {
38 Expression expression;
40 public Expression Expression {
41 get { return expression; }
44 internal MemberAssignment (MemberInfo member, Expression expression)
45 : base (MemberBindingType.Assignment, member)
47 this.expression = expression;
50 internal override void Emit (EmitContext ec, LocalBuilder local)
52 var member = this.Member;
54 switch (member.MemberType) {
55 case MemberTypes.Field:
56 EmitFieldAssignment (ec, (FieldInfo) member, local);
58 case MemberTypes.Property:
59 EmitPropertyAssignment (ec, (PropertyInfo) member, local);
62 throw new NotSupportedException (member.MemberType.ToString ());
66 void EmitFieldAssignment (EmitContext ec, FieldInfo field, LocalBuilder local)
70 ec.ig.Emit (OpCodes.Stfld, field);
73 void EmitPropertyAssignment (EmitContext ec, PropertyInfo property, LocalBuilder local)
75 var setter = property.GetSetMethod (true);
77 throw new InvalidOperationException ();