/NRefactory/ICSharpCode.NRefactory.CSharp/Ast/CSharpTokenNode.cs
http://github.com/icsharpcode/ILSpy · C# · 131 lines · 83 code · 17 blank · 31 comment · 7 complexity · 788d74cf6220cdd4b8a59cfc1a072c56 MD5 · raw file
- //
- // TokenNode.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;
- namespace ICSharpCode.NRefactory.CSharp
- {
- /// <summary>
- /// Represents a token in C#. Note that the type of the token is defined through the TokenRole.
- /// </summary>
- /// <remarks>
- /// In all non null c# token nodes the Role of a CSharpToken must be a TokenRole.
- /// </remarks>
- public class CSharpTokenNode : AstNode
- {
- public static new readonly CSharpTokenNode Null = new NullCSharpTokenNode ();
- class NullCSharpTokenNode : CSharpTokenNode
- {
- public override bool IsNull {
- get {
- return true;
- }
- }
-
- public NullCSharpTokenNode () : base (TextLocation.Empty, null)
- {
- }
-
- 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.Token;
- }
- }
-
- TextLocation startLocation;
- public override TextLocation StartLocation {
- get {
- return startLocation;
- }
- }
- int TokenLength {
- get {
- return TokenRole.TokenLengths [(int)(this.flags >> AstNodeFlagsUsedBits)];
- }
- }
-
- public override TextLocation EndLocation {
- get {
- return new TextLocation (StartLocation.Line, StartLocation.Column + TokenLength);
- }
- }
- public CSharpTokenNode (TextLocation location, TokenRole role)
- {
- this.startLocation = location;
- if (role != null)
- this.flags |= role.TokenIndex << AstNodeFlagsUsedBits;
- }
- public override string ToString(CSharpFormattingOptions formattingOptions)
- {
- return TokenRole.Tokens [(int)(this.flags >> AstNodeFlagsUsedBits)];
- }
- public override void AcceptVisitor (IAstVisitor visitor)
- {
- visitor.VisitCSharpTokenNode (this);
- }
-
- public override T AcceptVisitor<T> (IAstVisitor<T> visitor)
- {
- return visitor.VisitCSharpTokenNode (this);
- }
-
- public override S AcceptVisitor<T, S> (IAstVisitor<T, S> visitor, T data)
- {
- return visitor.VisitCSharpTokenNode (this, data);
- }
-
- protected internal override bool DoMatch(AstNode other, PatternMatching.Match match)
- {
- CSharpTokenNode o = other as CSharpTokenNode;
- return o != null && !o.IsNull && !(o is CSharpModifierToken);
- }
- }
- }