source: branches/CodeEditor/HeuristicLab.ExtLibs/HeuristicLab.NRefactory/5.5.0/NRefactory.CSharp-5.5.0/Ast/TypeMembers/Accessor.cs @ 11700

// 
// PropertyDeclaration.cs
//
// Author:
//       Mike Krüger <mkrueger@novell.com>
// 
// Copyright (c) 2010 Novell, Inc (http://www.novell.com)
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

using System;
using ICSharpCode.NRefactory.TypeSystem;

namespace ICSharpCode.NRefactory.CSharp
{
  /// <summary>
  /// get/set/add/remove
  /// </summary>
  public class Accessor : EntityDeclaration
  {
    public static readonly new Accessor Null = new NullAccessor ();
    sealed class NullAccessor : Accessor
    {
      public override bool IsNull {
        get {
          return true;
        }
      }
      
      public override void AcceptVisitor (IAstVisitor visitor)
      {
        visitor.VisitNullNode(this);
      }
      
      public override T AcceptVisitor<T> (IAstVisitor<T> visitor)
      {
        return visitor.VisitNullNode(this);
      }
      
      public override S AcceptVisitor<T, S> (IAstVisitor<T, S> visitor, T data)
      {
        return visitor.VisitNullNode(this, data);
      }
      
      protected internal override bool DoMatch(AstNode other, PatternMatching.Match match)
      {
        return other == null || other.IsNull;
      }
    }
    
    public override NodeType NodeType {
      get { return NodeType.Unknown; }
    }
    
    public override SymbolKind SymbolKind {
      get { return SymbolKind.Method; }
    }
    
    /// <summary>
    /// Gets the 'get'/'set'/'add'/'remove' keyword
    /// </summary>
    public CSharpTokenNode Keyword {
      get {
        for (AstNode child = this.FirstChild; child != null; child = child.NextSibling) {
          if (child.Role == PropertyDeclaration.GetKeywordRole || child.Role == PropertyDeclaration.SetKeywordRole
              || child.Role == CustomEventDeclaration.AddKeywordRole || child.Role == CustomEventDeclaration.RemoveKeywordRole)
          {
            return (CSharpTokenNode)child;
          }
        }
        return CSharpTokenNode.Null;
      }
    }
    
    public BlockStatement Body {
      get { return GetChildByRole (Roles.Body); }
      set { SetChildByRole (Roles.Body, value); }
    }
    
    public override void AcceptVisitor (IAstVisitor visitor)
    {
      visitor.VisitAccessor (this);
    }
    
    public override T AcceptVisitor<T> (IAstVisitor<T> visitor)
    {
      return visitor.VisitAccessor (this);
    }
    
    public override S AcceptVisitor<T, S>(IAstVisitor<T, S> visitor, T data)
    {
      return visitor.VisitAccessor (this, data);
    }
    
    protected internal override bool DoMatch(AstNode other, PatternMatching.Match match)
    {
      Accessor o = other as Accessor;
      return o != null && !o.IsNull && this.MatchAttributesAndModifiers(o, match) && this.Body.DoMatch(o.Body, match);
    }
  }
}