2 // CSharpConvertBinder.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 CSharpConvertBinder : ConvertBinder
39 readonly CSharpBinderFlags flags;
40 readonly Type context;
42 public CSharpConvertBinder (Type type, Type context, CSharpBinderFlags flags)
43 : base (type, (flags & CSharpBinderFlags.ConvertExplicit) != 0)
46 this.context = context;
49 public override DynamicMetaObject FallbackConvert (DynamicMetaObject target, DynamicMetaObject errorSuggestion)
51 var ctx = DynamicContext.Create ();
52 var expr = ctx.CreateCompilerExpression (null, target);
55 expr = new Compiler.Cast (new Compiler.TypeExpression (ctx.ImportType (Type), Compiler.Location.Null), expr, Compiler.Location.Null);
57 expr = new Compiler.ImplicitCast (expr, ctx.ImportType (Type), (flags & CSharpBinderFlags.ConvertArrayIndex) != 0);
59 if ((flags & CSharpBinderFlags.CheckedContext) != 0)
60 expr = new Compiler.CheckedExpr (expr, Compiler.Location.Null);
62 var binder = new CSharpBinder (this, expr, errorSuggestion);
63 binder.AddRestrictions (target);
65 return binder.Bind (ctx, context);