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Viewing changes to external/nrefactory/ICSharpCode.NRefactory.CSharp/Ast/CSharpTokenNode.cs

  • Committer: Package Import Robot
  • Author(s): Jo Shields
  • Date: 2013-05-12 09:46:03 UTC
  • mto: This revision was merged to the branch mainline in revision 29.
  • Revision ID: package-import@ubuntu.com-20130512094603-mad323bzcxvmcam0
Tags: upstream-4.0.5+dfsg
Import upstream version 4.0.5+dfsg

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external/nrefactory/ICSharpCode.NRefactory.CSharp/Ast/CSharpTokenNode.cs
 
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// 
 
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// TokenNode.cs
 
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//  
 
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// Author:
 
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//       Mike Krüger <mkrueger@novell.com>
 
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// 
 
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// Copyright (c) 2010 Novell, Inc (http://www.novell.com)
 
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// 
 
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// Permission is hereby granted, free of charge, to any person obtaining a copy
 
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// of this software and associated documentation files (the "Software"), to deal
 
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// in the Software without restriction, including without limitation the rights
 
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 
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// copies of the Software, and to permit persons to whom the Software is
 
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// furnished to do so, subject to the following conditions:
 
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// 
 
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// The above copyright notice and this permission notice shall be included in
 
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// all copies or substantial portions of the Software.
 
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// 
 
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 
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// THE SOFTWARE.
 
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using System;
 
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namespace ICSharpCode.NRefactory.CSharp
 
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{
 
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        /// <summary>
 
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        /// Represents a token in C#. Note that the type of the token is defined through the TokenRole.
 
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        /// </summary>
 
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        /// <remarks>
 
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        /// In all non null c# token nodes the Role of a CSharpToken must be a TokenRole.
 
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        /// </remarks>
 
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        public class CSharpTokenNode : AstNode
 
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        {
 
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                public static new readonly CSharpTokenNode Null = new NullCSharpTokenNode ();
 
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                class NullCSharpTokenNode : CSharpTokenNode
 
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                {
 
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                        public override bool IsNull {
 
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                                get {
 
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                                        return true;
 
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                                }
 
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                        }
 
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                        public NullCSharpTokenNode () : base (TextLocation.Empty, null)
 
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                        {
 
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                        }
 
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                        public override void AcceptVisitor (IAstVisitor visitor)
 
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                        {
 
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                        }
 
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                        public override T AcceptVisitor<T> (IAstVisitor<T> visitor)
 
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                        {
 
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                                return default (T);
 
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                        }
 
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                        public override S AcceptVisitor<T, S> (IAstVisitor<T, S> visitor, T data)
 
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                        {
 
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                                return default (S);
 
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                        }
 
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                        protected internal override bool DoMatch(AstNode other, PatternMatching.Match match)
 
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                        {
 
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                                return other == null || other.IsNull;
 
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                        }
 
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                }
 
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                public override NodeType NodeType {
 
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                        get {
 
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                                return NodeType.Token;
 
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                        }
 
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                }
 
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                TextLocation startLocation;
 
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                public override TextLocation StartLocation {
 
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                        get {
 
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                                return startLocation;
 
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                        }
 
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                }
 
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                int TokenLength {
 
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                        get {
 
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                                return TokenRole.TokenLengths [(int)(this.flags >> AstNodeFlagsUsedBits)];
 
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                        }
 
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                }
 
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                public override TextLocation EndLocation {
 
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                        get {
 
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                                return new TextLocation (StartLocation.Line, StartLocation.Column + TokenLength);
 
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                        }
 
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                }
 
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                public CSharpTokenNode (TextLocation location, TokenRole role)
 
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                {
 
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                        this.startLocation = location;
 
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                        if (role != null)
 
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                                this.flags |= role.TokenIndex << AstNodeFlagsUsedBits;
 
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                }
 
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                public override string ToString(CSharpFormattingOptions formattingOptions)
 
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                {
 
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                        return TokenRole.Tokens [(int)(this.flags >> AstNodeFlagsUsedBits)];
 
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                }
 
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                public override void AcceptVisitor (IAstVisitor visitor)
 
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                {
 
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                        visitor.VisitCSharpTokenNode (this);
 
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                }
 
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                public override T AcceptVisitor<T> (IAstVisitor<T> visitor)
 
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                {
 
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                        return visitor.VisitCSharpTokenNode (this);
 
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                }
 
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                public override S AcceptVisitor<T, S> (IAstVisitor<T, S> visitor, T data)
 
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                {
 
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                        return visitor.VisitCSharpTokenNode (this, data);
 
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                }
 
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                protected internal override bool DoMatch(AstNode other, PatternMatching.Match match)
 
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                {
 
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                        CSharpTokenNode o = other as CSharpTokenNode;
 
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                        return o != null && !o.IsNull && !(o is CSharpModifierToken);
 
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                }
 
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        }
 
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}
 
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