source: trunk/HeuristicLab.ExtLibs/HeuristicLab.NRefactory/5.5.0/NRefactory.CSharp-5.5.0/Ast/Expressions/IsExpression.cs @ 17578

// 
// TypeOfIsExpression.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.Collections.Generic;

namespace ICSharpCode.NRefactory.CSharp
{
  /// <summary>
  /// Expression is Type
  /// </summary>
  public class IsExpression : Expression
  {
    public readonly static TokenRole IsKeywordRole = new TokenRole ("is");
    
    public Expression Expression {
      get { return GetChildByRole(Roles.Expression); }
      set { SetChildByRole(Roles.Expression, value); }
    }
    
    public CSharpTokenNode IsToken {
      get { return GetChildByRole (IsKeywordRole); }
    }
    
    public AstType Type {
      get { return GetChildByRole(Roles.Type); }
      set { SetChildByRole(Roles.Type, value); }
    }

    public IsExpression()
    {
    }

    public IsExpression (Expression expression, AstType type)
    {
      AddChild (expression, Roles.Expression);
      AddChild (type, Roles.Type);
    }

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

    #region Builder methods
    public override MemberReferenceExpression Member(string memberName)
    {
      return new MemberReferenceExpression { Target = this, MemberName = memberName };
    }

    public override IndexerExpression Indexer(IEnumerable<Expression> arguments)
    {
      IndexerExpression expr = new IndexerExpression();
      expr.Target = new ParenthesizedExpression(this);
      expr.Arguments.AddRange(arguments);
      return expr;
    }

    public override IndexerExpression Indexer(params Expression[] arguments)
    {
      IndexerExpression expr = new IndexerExpression();
      expr.Target = new ParenthesizedExpression(this);
      expr.Arguments.AddRange(arguments);
      return expr;
    }

    public override InvocationExpression Invoke(string methodName, IEnumerable<AstType> typeArguments, IEnumerable<Expression> arguments)
    {
      InvocationExpression ie = new InvocationExpression();
      MemberReferenceExpression mre = new MemberReferenceExpression();
      mre.Target = new ParenthesizedExpression(this);
      mre.MemberName = methodName;
      mre.TypeArguments.AddRange(typeArguments);
      ie.Target = mre;
      ie.Arguments.AddRange(arguments);
      return ie;
    }

    public override InvocationExpression Invoke(IEnumerable<Expression> arguments)
    {
      InvocationExpression ie = new InvocationExpression();
      ie.Target = new ParenthesizedExpression(this);
      ie.Arguments.AddRange(arguments);
      return ie;
    }

    public override InvocationExpression Invoke(params Expression[] arguments)
    {
      InvocationExpression ie = new InvocationExpression();
      ie.Target = new ParenthesizedExpression(this);
      ie.Arguments.AddRange(arguments);
      return ie;
    }

    public override CastExpression CastTo(AstType type)
    {
      return new CastExpression { Type = type,  Expression = new ParenthesizedExpression(this) };
    }

    public override AsExpression CastAs(AstType type)
    {
      return new AsExpression { Type = type,  Expression = new ParenthesizedExpression(this) };
    }

    public override IsExpression IsType(AstType type)
    {
      return new IsExpression { Type = type,  Expression = new ParenthesizedExpression(this) };
    }
    #endregion
  }
}