source: tags/3.3.13/HeuristicLab.ExtLibs/HeuristicLab.NRefactory/5.5.0/NRefactory-5.5.0/TypeSystem/Implementation/AbstractType.cs @ 18242

// 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
// 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.Diagnostics.Contracts;
using System.Linq;

namespace ICSharpCode.NRefactory.TypeSystem.Implementation
{
  /// <summary>
  /// Default implementation for IType interface.
  /// </summary>
  [Serializable]
  public abstract class AbstractType : IType
  {
    public virtual string FullName {
      get {
        string ns = this.Namespace;
        string name = this.Name;
        if (string.IsNullOrEmpty(ns)) {
          return name;
        } else {
          return ns + "." + name;
        }
      }
    }
    
    public abstract string Name { get; }
    
    public virtual string Namespace {
      get { return string.Empty; }
    }
    
    public virtual string ReflectionName {
      get { return this.FullName; }
    }
    
    public abstract bool? IsReferenceType  { get; }
    
    public abstract TypeKind Kind { get; }
    
    public virtual int TypeParameterCount {
      get { return 0; }
    }

    readonly static IList<IType> emptyTypeArguments = new IType[0];
    public virtual IList<IType> TypeArguments {
      get { return emptyTypeArguments; }
    }

    public virtual IType DeclaringType {
      get { return null; }
    }

    public virtual bool IsParameterized { 
      get { return false; }
    }

    public virtual ITypeDefinition GetDefinition()
    {
      return null;
    }
    
    public virtual IEnumerable<IType> DirectBaseTypes {
      get { return EmptyList<IType>.Instance; }
    }
    
    public abstract ITypeReference ToTypeReference();
    
    public virtual IEnumerable<IType> GetNestedTypes(Predicate<ITypeDefinition> filter = null, GetMemberOptions options = GetMemberOptions.None)
    {
      return EmptyList<IType>.Instance;
    }
    
    public virtual IEnumerable<IType> GetNestedTypes(IList<IType> typeArguments, Predicate<ITypeDefinition> filter = null, GetMemberOptions options = GetMemberOptions.None)
    {
      return EmptyList<IType>.Instance;
    }
    
    public virtual IEnumerable<IMethod> GetMethods(Predicate<IUnresolvedMethod> filter = null, GetMemberOptions options = GetMemberOptions.None)
    {
      return EmptyList<IMethod>.Instance;
    }
    
    public virtual IEnumerable<IMethod> GetMethods(IList<IType> typeArguments, Predicate<IUnresolvedMethod> filter = null, GetMemberOptions options = GetMemberOptions.None)
    {
      return EmptyList<IMethod>.Instance;
    }
    
    public virtual IEnumerable<IMethod> GetConstructors(Predicate<IUnresolvedMethod> filter = null, GetMemberOptions options = GetMemberOptions.IgnoreInheritedMembers)
    {
      return EmptyList<IMethod>.Instance;
    }
    
    public virtual IEnumerable<IProperty> GetProperties(Predicate<IUnresolvedProperty> filter = null, GetMemberOptions options = GetMemberOptions.None)
    {
      return EmptyList<IProperty>.Instance;
    }
    
    public virtual IEnumerable<IField> GetFields(Predicate<IUnresolvedField> filter = null, GetMemberOptions options = GetMemberOptions.None)
    {
      return EmptyList<IField>.Instance;
    }
    
    public virtual IEnumerable<IEvent> GetEvents(Predicate<IUnresolvedEvent> filter = null, GetMemberOptions options = GetMemberOptions.None)
    {
      return EmptyList<IEvent>.Instance;
    }
    
    public virtual IEnumerable<IMember> GetMembers(Predicate<IUnresolvedMember> filter = null, GetMemberOptions options = GetMemberOptions.None)
    {
      IEnumerable<IMember> members = GetMethods(filter, options);
      return members
        .Concat(GetProperties(filter, options))
        .Concat(GetFields(filter, options))
        .Concat(GetEvents(filter, options));
    }
    
    public virtual IEnumerable<IMethod> GetAccessors(Predicate<IUnresolvedMethod> filter = null, GetMemberOptions options = GetMemberOptions.None)
    {
      return EmptyList<IMethod>.Instance;
    }
    
    public TypeParameterSubstitution GetSubstitution()
    {
      return TypeParameterSubstitution.Identity;
    }
    
    public TypeParameterSubstitution GetSubstitution(IList<IType> methodTypeArguments)
    {
      return TypeParameterSubstitution.Identity;
    }

    public override sealed bool Equals(object obj)
    {
      return Equals(obj as IType);
    }
    
    public override int GetHashCode()
    {
      return base.GetHashCode();
    }
    
    public virtual bool Equals(IType other)
    {
      return this == other; // use reference equality by default
    }
    
    public override string ToString()
    {
      return this.ReflectionName;
    }
    
    public virtual IType AcceptVisitor(TypeVisitor visitor)
    {
      return visitor.VisitOtherType(this);
    }
    
    public virtual IType VisitChildren(TypeVisitor visitor)
    {
      return this;
    }
  }
}