source: branches/CodeEditor/HeuristicLab.ExtLibs/HeuristicLab.NRefactory/5.5.0/NRefactory.CSharp-5.5.0/Ast/TypeMembers/EntityDeclaration.cs @ 11700

// Copyright (c) 2010-2013 AlphaSierraPapa for the SharpDevelop Team
// 
// 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
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// 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
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using System;
using System.Collections.Generic;
using System.Linq;

namespace ICSharpCode.NRefactory.CSharp
{
  public abstract class EntityDeclaration : AstNode
  {
    public static readonly Role<AttributeSection> AttributeRole = new Role<AttributeSection>("Attribute");
    public static readonly Role<AttributeSection> UnattachedAttributeRole = new Role<AttributeSection>("UnattachedAttribute");
    public static readonly Role<CSharpModifierToken> ModifierRole = new Role<CSharpModifierToken>("Modifier");
    public static readonly Role<AstType> PrivateImplementationTypeRole = new Role<AstType>("PrivateImplementationType", AstType.Null);
    
    public override NodeType NodeType {
      get { return NodeType.Member; }
    }
    
    public abstract NRefactory.TypeSystem.SymbolKind SymbolKind { get; }
    
    public AstNodeCollection<AttributeSection> Attributes {
      get { return base.GetChildrenByRole (AttributeRole); }
    }
    
    public Modifiers Modifiers {
      get { return GetModifiers(this); }
      set { SetModifiers(this, value); }
    }
    
    public bool HasModifier (Modifiers mod)
    {
      return (Modifiers & mod) == mod;
    }
    
    public IEnumerable<CSharpModifierToken> ModifierTokens {
      get { return GetChildrenByRole (ModifierRole); }
    }
    
    public virtual string Name {
      get {
        return GetChildByRole (Roles.Identifier).Name;
      }
      set {
        SetChildByRole (Roles.Identifier, Identifier.Create (value, TextLocation.Empty));
      }
    }
    
    public virtual Identifier NameToken {
      get { return GetChildByRole (Roles.Identifier); }
      set { SetChildByRole (Roles.Identifier, value); }
    }
    
    public virtual AstType ReturnType {
      get { return GetChildByRole (Roles.Type); }
      set { SetChildByRole(Roles.Type, value); }
    }

    public CSharpTokenNode SemicolonToken {
      get { return GetChildByRole (Roles.Semicolon); }
    }

    internal static Modifiers GetModifiers(AstNode node)
    {
      Modifiers m = 0;
      foreach (CSharpModifierToken t in node.GetChildrenByRole (ModifierRole)) {
        m |= t.Modifier;
      }
      return m;
    }
    
    internal static void SetModifiers(AstNode node, Modifiers newValue)
    {
      Modifiers oldValue = GetModifiers(node);
      AstNode insertionPos = node.GetChildrenByRole(AttributeRole).LastOrDefault();
      foreach (Modifiers m in CSharpModifierToken.AllModifiers) {
        if ((m & newValue) != 0) {
          if ((m & oldValue) == 0) {
            // Modifier was added
            var newToken = new CSharpModifierToken(TextLocation.Empty, m);
            node.InsertChildAfter(insertionPos, newToken, ModifierRole);
            insertionPos = newToken;
          } else {
            // Modifier already exists
            insertionPos = node.GetChildrenByRole(ModifierRole).First(t => t.Modifier == m);
          }
        } else {
          if ((m & oldValue) != 0) {
            // Modifier was removed
            node.GetChildrenByRole (ModifierRole).First(t => t.Modifier == m).Remove();
          }
        }
      }
    }
    
    protected bool MatchAttributesAndModifiers (EntityDeclaration o, PatternMatching.Match match)
    {
      return (this.Modifiers == Modifiers.Any || this.Modifiers == o.Modifiers) && this.Attributes.DoMatch (o.Attributes, match);
    }
  }
}