2 // CSharpSetMemberBinder.cs
5 // Marek Safar <marek.safar@gmail.com>
7 // Copyright (C) 2009 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.
31 using System.Collections.Generic;
33 using Compiler = Mono.CSharp;
35 namespace Microsoft.CSharp.RuntimeBinder
37 class CSharpSetMemberBinder : SetMemberBinder
39 readonly CSharpBinderFlags flags;
40 IList<CSharpArgumentInfo> argumentInfo;
43 public CSharpSetMemberBinder (CSharpBinderFlags flags, string name, Type callingContext, IEnumerable<CSharpArgumentInfo> argumentInfo)
47 this.callingContext = callingContext;
48 this.argumentInfo = argumentInfo.ToReadOnly ();
51 public override DynamicMetaObject FallbackSetMember (DynamicMetaObject target, DynamicMetaObject value, DynamicMetaObject errorSuggestion)
53 var ctx = DynamicContext.Create ();
54 var source = ctx.CreateCompilerExpression (argumentInfo [1], value);
55 var expr = ctx.CreateCompilerExpression (argumentInfo [0], target);
58 expr = new Compiler.MemberAccess (expr, Name);
60 // Compound assignment under dynamic context does not convert result
61 // expression but when setting member type we need to do explicit
62 // conversion to ensure type match between member type and dynamic
64 if ((flags & CSharpBinderFlags.ValueFromCompoundAssignment) != 0) {
65 expr = new Compiler.RuntimeExplicitAssign (expr, source);
67 expr = new Compiler.SimpleAssign (expr, source);
70 expr = new Compiler.Cast (new Compiler.TypeExpression (ctx.ImportType (ReturnType), Compiler.Location.Null), expr, Compiler.Location.Null);
72 if ((flags & CSharpBinderFlags.CheckedContext) != 0)
73 expr = new Compiler.CheckedExpr (expr, Compiler.Location.Null);
75 var binder = new CSharpBinder (this, expr, errorSuggestion);
76 binder.AddRestrictions (target);
77 binder.AddRestrictions (value);
79 return binder.Bind (ctx, callingContext);