source: stable/HeuristicLab.ExtLibs/HeuristicLab.NRefactory/5.5.0/NRefactory.CSharp-5.5.0/Ast/GeneralScope/PreProcessorDirective.cs

// 
// PreProcessorDirective.cs
//  
// Author:
//       Mike Krüger <mkrueger@xamarin.com>
// 
// Copyright (c) 2011 Xamarin Inc.
// 
// 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 System.Collections.Generic;
using System.Linq;

namespace ICSharpCode.NRefactory.CSharp
{
  public enum PreProcessorDirectiveType : byte
  {
    Invalid = 0,
    Region = 1,
    Endregion = 2,
    
    If = 3,
    Endif = 4,
    Elif = 5,
    Else = 6,
    
    Define = 7,
    Undef = 8,
    Error = 9,
    Warning = 10,
    Pragma = 11,
    Line = 12
  }

  public class LinePreprocessorDirective : PreProcessorDirective
  {
    public int LineNumber {
      get;
      set;
    }

    public string FileName {
      get;
      set;
    }

    public LinePreprocessorDirective(TextLocation startLocation, TextLocation endLocation) : base (PreProcessorDirectiveType.Line, startLocation, endLocation)
    {
    }

    public LinePreprocessorDirective(string argument = null) : base (PreProcessorDirectiveType.Line, argument)
    {
    }
  }

  public class PragmaWarningPreprocessorDirective : PreProcessorDirective
  {
    public static readonly Role<PrimitiveExpression>  WarningRole = new Role<PrimitiveExpression> ("Warning");

    public static readonly TokenRole PragmaKeywordRole = new TokenRole ("#pragma");
    public static readonly TokenRole WarningKeywordRole = new TokenRole ("warning");
    public static readonly TokenRole DisableKeywordRole = new TokenRole ("disable");
    public static readonly TokenRole RestoreKeywordRole = new TokenRole ("restore");

    public bool Disable {
      get {
        return !DisableToken.IsNull;
      }
    }

    public CSharpTokenNode PragmaToken {
      get { return GetChildByRole (PragmaKeywordRole); }
    }

    public CSharpTokenNode WarningToken {
      get { return GetChildByRole (WarningKeywordRole); }
    }

    public CSharpTokenNode DisableToken {
      get { return GetChildByRole (DisableKeywordRole); }
    }

    public CSharpTokenNode RestoreToken {
      get { return GetChildByRole (RestoreKeywordRole); }
    }

    public AstNodeCollection<PrimitiveExpression> Warnings {
      get { return GetChildrenByRole(WarningRole); }
    }

    public override TextLocation EndLocation {
      get {
        var child = LastChild;
        if (child == null)
          return base.EndLocation;
        return child.EndLocation;
      }
    }

    public PragmaWarningPreprocessorDirective(TextLocation startLocation, TextLocation endLocation) : base (PreProcessorDirectiveType.Pragma, startLocation, endLocation)
    {
    }

    public PragmaWarningPreprocessorDirective(string argument = null) : base (PreProcessorDirectiveType.Pragma, argument)
    {
    }

    public bool IsDefined(int pragmaWarning)
    {
      return Warnings.Select(w => (int)w.Value).Any(n => n == pragmaWarning);
    }
  }
  
  public class PreProcessorDirective : AstNode
  {
    public override NodeType NodeType {
      get {
        return NodeType.Whitespace;
      }
    }
    
    public PreProcessorDirectiveType Type {
      get;
      set;
    }
    
    public string Argument {
      get;
      set;
    }
    
    /// <summary>
    /// For an '#if' directive, specifies whether the condition evaluated to true.
    /// </summary>
    public bool Take {
      get;
      set;
    }
    
    TextLocation startLocation;
    public override TextLocation StartLocation {
      get { 
        return startLocation;
      }
    }
    
    TextLocation endLocation;
    public override TextLocation EndLocation {
      get {
        return endLocation;
      }
    }
    
    public PreProcessorDirective(PreProcessorDirectiveType type, TextLocation startLocation, TextLocation endLocation)
    {
      this.Type = type;
      this.startLocation = startLocation;
      this.endLocation = endLocation;
    }

    public PreProcessorDirective(PreProcessorDirectiveType type, string argument = null)
    {
      this.Type = type;
      this.Argument = argument;
    }

    public override void AcceptVisitor (IAstVisitor visitor)
    {
      visitor.VisitPreProcessorDirective (this);
    }
      
    public override T AcceptVisitor<T> (IAstVisitor<T> visitor)
    {
      return visitor.VisitPreProcessorDirective (this);
    }

    public override S AcceptVisitor<T, S> (IAstVisitor<T, S> visitor, T data)
    {
      return visitor.VisitPreProcessorDirective (this, data);
    }
    
    protected internal override bool DoMatch(AstNode other, PatternMatching.Match match)
    {
      PreProcessorDirective o = other as PreProcessorDirective;
      return o != null && Type == o.Type && MatchString(Argument, o.Argument);
    }
  }
}