fix MONOTOUCH on trunk
[mono.git] / mcs / class / Microsoft.CSharp / Microsoft.CSharp.RuntimeBinder / CSharpSetIndexBinder.cs
1 //
2 // CSharpSetIndexBinder.cs
3 //
4 // Authors:
5 //      Marek Safar  <marek.safar@gmail.com>
6 //
7 // Copyright (C) 2009 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.Dynamic;
31 using System.Collections.Generic;
32 using System.Linq;
33 using Compiler = Mono.CSharp;
34
35 namespace Microsoft.CSharp.RuntimeBinder
36 {
37         public class CSharpSetIndexBinder : SetIndexBinder
38         {
39                 IList<CSharpArgumentInfo> argumentInfo;
40                 Type callingContext;
41                 
42                 public CSharpSetIndexBinder (Type callingContext, IEnumerable<CSharpArgumentInfo> argumentInfo)
43                         : base (CSharpArgumentInfo.CreateCallInfo (argumentInfo, 2))
44                 {
45                         this.callingContext = callingContext;
46                         this.argumentInfo = argumentInfo.ToReadOnly ();
47                 }
48                 
49                 public IList<CSharpArgumentInfo> ArgumentInfo {
50                         get {
51                                 return argumentInfo;
52                         }
53                 }
54
55                 public Type CallingContext {
56                         get {
57                                 return callingContext;
58                         }
59                 }
60                 
61                 public override bool Equals (object obj)
62                 {
63                         var other = obj as CSharpSetIndexBinder;
64                         return other != null && other.callingContext == callingContext && 
65                                 other.argumentInfo.SequenceEqual (argumentInfo);
66                 }
67
68                 public override int GetHashCode ()
69                 {
70                         return Extensions.HashCode (
71                                 callingContext.GetHashCode (),
72                                 argumentInfo.GetHashCode (),
73                                 GetType ().GetHashCode ());
74                 }
75                 
76                 public override DynamicMetaObject FallbackSetIndex (DynamicMetaObject target, DynamicMetaObject[] indexes, DynamicMetaObject value, DynamicMetaObject errorSuggestion)
77                 {
78                         if (argumentInfo.Count != indexes.Length + 2) {
79                                 if (errorSuggestion == null)
80                                         throw new NotImplementedException ();
81
82                                 return errorSuggestion;
83                         }
84
85                         var expr = CSharpBinder.CreateCompilerExpression (argumentInfo [0], target);
86                         var args = CSharpBinder.CreateCompilerArguments (argumentInfo.Skip (2), indexes);
87                         expr = new Compiler.ElementAccess (expr, args);
88
89                         var source = CSharpBinder.CreateCompilerExpression (argumentInfo[1], value);
90                         expr = new Compiler.SimpleAssign (expr, source);
91                         expr = new Compiler.Cast (new Compiler.TypeExpression (typeof (object), Compiler.Location.Null), expr); // TODO: ReturnType replace
92
93                         var restrictions = CSharpBinder.CreateRestrictionsOnTarget (target).Merge (
94                                 CSharpBinder.CreateRestrictionsOnTarget (value)).Merge (
95                                 CSharpBinder.CreateRestrictionsOnTarget (indexes));
96
97                         return CSharpBinder.Bind (target, expr, callingContext, restrictions, errorSuggestion);
98                 }
99         }
100 }