source: branches/2389-EpsLexicase/HeuristicLab.ExtLibs/HeuristicLab.NRefactory/5.5.0/NRefactory.CSharp-5.5.0/Ast/GeneralScope/NamespaceDeclaration.cs

// 
// NamespaceDeclaration.cs
//  
// Author:
//       Mike Krüger <mkrueger@novell.com>
// 
// Copyright (c) 2009 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.Collections.Generic;
using System.Linq;
using System.Text;
using System;

namespace ICSharpCode.NRefactory.CSharp
{
  /// <summary>
  /// namespace Name { Members }
  /// </summary>
  public class NamespaceDeclaration : AstNode
  {
    public static readonly Role<AstNode> MemberRole = SyntaxTree.MemberRole;
    public static readonly Role<AstType> NamespaceNameRole = new Role<AstType>("NamespaceName", AstType.Null);

    public override NodeType NodeType {
      get {
        return NodeType.Unknown;
      }
    }

    public CSharpTokenNode NamespaceToken {
      get { return GetChildByRole(Roles.NamespaceKeyword); }
    }

    public AstType NamespaceName {
      get { return GetChildByRole(NamespaceNameRole) ?? AstType.Null; }
      set { SetChildByRole(NamespaceNameRole, value); }
    }

    public string Name {
      get {
        return UsingDeclaration.ConstructNamespace(NamespaceName);
      }
      set {
        var arr = value.Split('.');
        NamespaceName = ConstructType(arr, arr.Length - 1);
      }
    }

    static AstType ConstructType(string[] arr, int i)
    {
      if (i < 0 || i >= arr.Length)
        throw new ArgumentOutOfRangeException("i");
      if (i == 0)
        return new SimpleType(arr[i]);
      return new MemberType(ConstructType(arr, i - 1), arr[i]);
    }

    /// <summary>
    /// Gets the full namespace name (including any parent namespaces)
    /// </summary>
    public string FullName {
      get {
        NamespaceDeclaration parentNamespace = Parent as NamespaceDeclaration;
        if (parentNamespace != null)
          return BuildQualifiedName(parentNamespace.FullName, Name);
        return Name;
      }
    }

    public IEnumerable<string> Identifiers {
      get {
        var result = new Stack<string>();
        AstType type = NamespaceName;
        while (type is MemberType) {
          var mt = (MemberType)type;
          result.Push(mt.MemberName);
          type = mt.Target;
        }
        if (type is SimpleType)
          result.Push(((SimpleType)type).Identifier);
        return result;
      }
    }

    public CSharpTokenNode LBraceToken {
      get { return GetChildByRole(Roles.LBrace); }
    }

    public AstNodeCollection<AstNode> Members {
      get { return GetChildrenByRole(MemberRole); }
    }

    public CSharpTokenNode RBraceToken {
      get { return GetChildByRole(Roles.RBrace); }
    }

    public NamespaceDeclaration()
    {
    }

    public NamespaceDeclaration(string name)
    {
      this.Name = name;
    }

    public static string BuildQualifiedName(string name1, string name2)
    {
      if (string.IsNullOrEmpty(name1))
        return name2;
      if (string.IsNullOrEmpty(name2))
        return name1;
      return name1 + "." + name2;
    }

    public void AddMember(AstNode child)
    {
      AddChild(child, MemberRole);
    }

    public override void AcceptVisitor(IAstVisitor visitor)
    {
      visitor.VisitNamespaceDeclaration(this);
    }

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

    public override S AcceptVisitor<T, S>(IAstVisitor<T, S> visitor, T data)
    {
      return visitor.VisitNamespaceDeclaration(this, data);
    }

    protected internal override bool DoMatch(AstNode other, PatternMatching.Match match)
    {
      NamespaceDeclaration o = other as NamespaceDeclaration;
      return o != null && MatchString(this.Name, o.Name) && this.Members.DoMatch(o.Members, match);
    }
  }
}     ;