/*
    Copyright (C) 2014-2019 de4dot@gmail.com

    This file is part of dnSpy

    dnSpy is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    dnSpy is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with dnSpy.  If not, see <http://www.gnu.org/licenses/>.
*/

using System;
using System.Diagnostics;

namespace dndbg.Engine {
	abstract class COMObject<T> : IEquatable<COMObject<T>?> where T : class {
		public T RawObject => obj;
		protected readonly T obj;

		protected COMObject(T obj) {
			Debug2.Assert(obj is not null);
			this.obj = obj ?? throw new ArgumentNullException(nameof(obj));
		}

		public bool Equals(COMObject<T>? other) => other is not null && RawObject == other.RawObject;
		public override bool Equals(object? obj) => Equals(obj as COMObject<T>);
		public override int GetHashCode() => RawObject.GetHashCode();
	}
}