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CSharpTokenNode.cs
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CSharpTokenNode.cs
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//
// 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
{
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 (AstLocation.Empty, 0)
{
}
public override S AcceptVisitor<T, S> (IAstVisitor<T, S> visitor, T data)
{
return default (S);
}
protected internal override bool DoMatch(AstNode other, PatternMatching.Match match)
{
return other == null || other.IsNull;
}
}
public override NodeType NodeType {
get {
return NodeType.Token;
}
}
AstLocation startLocation;
public override AstLocation StartLocation {
get {
return startLocation;
}
}
protected int tokenLength;
public override AstLocation EndLocation {
get {
return new AstLocation (StartLocation.Line, StartLocation.Column + tokenLength);
}
}
public CSharpTokenNode (AstLocation location, int tokenLength)
{
this.startLocation = location;
this.tokenLength = tokenLength;
}
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);
}
public override string ToString ()
{
return string.Format ("[CSharpTokenNode: StartLocation={0}, EndLocation={1}, Role={2}]", StartLocation, EndLocation, Role);
}
}
}