143 lines
3.9 KiB
C#
143 lines
3.9 KiB
C#
//
|
|
// System.Object.cs
|
|
//
|
|
// Author:
|
|
// Miguel de Icaza (miguel@ximian.com)
|
|
//
|
|
// (C) Ximian, Inc. http://www.ximian.com
|
|
//
|
|
//
|
|
|
|
//
|
|
// Copyright (C) 2004 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.Runtime.InteropServices;
|
|
using System.Runtime.CompilerServices;
|
|
using System.Runtime.ConstrainedExecution;
|
|
|
|
namespace System {
|
|
|
|
[Serializable]
|
|
[ClassInterface (ClassInterfaceType.AutoDual)]
|
|
[ComVisible (true)]
|
|
public class Object {
|
|
|
|
// <summary>
|
|
// Compares this object to the specified object.
|
|
// Returns true if they are equal, false otherwise.
|
|
// </summary>
|
|
public virtual bool Equals (object obj)
|
|
{
|
|
return this == obj;
|
|
}
|
|
|
|
// <summary>
|
|
// Compares two objects for equality
|
|
// </summary>
|
|
public static bool Equals (object objA, object objB)
|
|
{
|
|
if (objA == objB)
|
|
return true;
|
|
|
|
if (objA == null || objB == null)
|
|
return false;
|
|
|
|
return objA.Equals (objB);
|
|
}
|
|
|
|
// <summary>
|
|
// Initializes a new instance of the object class.
|
|
// </summary>
|
|
[ReliabilityContractAttribute (Consistency.WillNotCorruptState, Cer.MayFail)]
|
|
public Object ()
|
|
{
|
|
}
|
|
|
|
// <summary>
|
|
// Object destructor.
|
|
// </summary>
|
|
[ReliabilityContractAttribute (Consistency.WillNotCorruptState, Cer.Success)]
|
|
~Object ()
|
|
{
|
|
}
|
|
|
|
// <summary>
|
|
// Returns a hashcode for this object. Each derived
|
|
// class should return a hash code that makes sense
|
|
// for that particular implementation of the object.
|
|
// </summary>
|
|
public virtual int GetHashCode () {
|
|
return InternalGetHashCode (this);
|
|
}
|
|
|
|
// <summary>
|
|
// Returns the Type associated with the object.
|
|
// </summary>
|
|
[MethodImplAttribute(MethodImplOptions.InternalCall)]
|
|
public extern Type GetType ();
|
|
|
|
// <summary>
|
|
// Shallow copy of the object.
|
|
// </summary>
|
|
[MethodImplAttribute(MethodImplOptions.InternalCall)]
|
|
protected extern object MemberwiseClone ();
|
|
|
|
// <summary>
|
|
// Returns a stringified representation of the object.
|
|
// This is not supposed to be used for user presentation,
|
|
// use Format() for that and IFormattable.
|
|
//
|
|
// ToString is mostly used for debugging purposes.
|
|
// </summary>
|
|
public virtual string ToString ()
|
|
{
|
|
return GetType ().ToString ();
|
|
}
|
|
|
|
// <summary>
|
|
// Tests whether a is equal to b.
|
|
// Can not figure out why this even exists
|
|
// </summary>
|
|
[ReliabilityContractAttribute (Consistency.WillNotCorruptState, Cer.Success)]
|
|
public static bool ReferenceEquals (object objA, object objB)
|
|
{
|
|
return (objA == objB);
|
|
}
|
|
|
|
[MethodImplAttribute(MethodImplOptions.InternalCall)]
|
|
internal static extern int InternalGetHashCode (object o);
|
|
|
|
#pragma warning disable 169
|
|
void FieldGetter (string typeName, string fieldName, ref object val)
|
|
{
|
|
/* never called */
|
|
}
|
|
|
|
void FieldSetter (string typeName, string fieldName, object val)
|
|
{
|
|
/* never called */
|
|
}
|
|
#pragma warning restore 169
|
|
}
|
|
}
|