class/Microsoft.CSharp/Microsoft.CSharp.RuntimeBinder/CSharpArgumentInfo.cs

   1 //
   2 // CSharpArgumentInfo.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 sealed class CSharpArgumentInfo
  38         {
  39                 readonly CSharpArgumentInfoFlags flags;
  40                 readonly string name;
  41
  42                 CSharpArgumentInfo (CSharpArgumentInfoFlags flags, string name)
  43                 {
  44                         this.flags = flags;
  45                         this.name = name;
  46                 }
  47
  48                 public static CSharpArgumentInfo Create (CSharpArgumentInfoFlags flags, string name)
  49                 {
  50                         return new CSharpArgumentInfo (flags, name);
  51                 }
  52
  53                 internal Compiler.Argument.AType ArgumentModifier {
  54                         get {
  55                                 if ((flags & CSharpArgumentInfoFlags.IsRef) != 0)
  56                                         return Compiler.Argument.AType.Ref;
  57
  58                                 if ((flags & CSharpArgumentInfoFlags.IsOut) != 0)
  59                                         return Compiler.Argument.AType.Out;
  60
  61                                 return Compiler.Argument.AType.None;
  62                         }
  63                 }
  64
  65                 internal static CallInfo CreateCallInfo (IEnumerable<CSharpArgumentInfo> argumentInfo, int skipCount)
  66                 {
  67                         var named = from arg in argumentInfo.Skip (skipCount) where arg.IsNamed select arg.name;
  68                         return new CallInfo (Math.Max (0, argumentInfo.Count () - skipCount), named);
  69                 }
  70
  71                 internal CSharpArgumentInfoFlags Flags {
  72                         get { return flags; }
  73                 }
  74
  75                 internal bool IsNamed {
  76                         get { return (flags & CSharpArgumentInfoFlags.NamedArgument) != 0; }
  77                 }
  78
  79                 internal string Name {
  80                         get { return name; }
  81                 }
  82         }
  83 }