Изменения документа Dispose

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1	1	Реализация метода Dispose
2	2	[[https:~~/~~/learn.microsoft.com/ru-ru/dotnet/standard/garbage-collection/implementing-dispose>>https://learn.microsoft.com/ru-ru/dotnet/standard/garbage-collection/implementing-dispose]]
	3	+
	4	+----
	5	+
	6	+|(% style="width:465px" %)Отчистка неуправляемых и управляемых ресурсов|(% style="width:1030px" %){{code language="C#"}}class BaseClassWithFinalizer : IDisposable
	7	+{
	8	+ // To detect redundant calls
	9	+ private bool _disposedValue;
	10	+
	11	+ ~BaseClassWithFinalizer() => Dispose(false);
	12	+
	13	+ // Public implementation of Dispose pattern callable by consumers.
	14	+ public void Dispose()
	15	+ {
	16	+ Dispose(true);
	17	+ GC.SuppressFinalize(this);
	18	+ }
	19	+
	20	+ // Protected implementation of Dispose pattern.
	21	+ protected virtual void Dispose(bool disposing)
	22	+ {
	23	+ if (!_disposedValue)
	24	+ {
	25	+ if (disposing)
	26	+ {
	27	+ // TODO: dispose managed state (managed objects)
	28	+ }
	29	+
	30	+ // TODO: free unmanaged resources (unmanaged objects) and override finalizer
	31	+ // TODO: set large fields to null
	32	+ _disposedValue = true;
	33	+ }
	34	+ }
	35	+}{{/code}}
	36	+|(% style="width:465px" %)Отчистка управляемых ресурсов|(% style="width:1030px" %){{code language="C#"}}public sealed class Foo : IDisposable
	37	+{
	38	+ private readonly IDisposable _disposable1;
	39	+ private readonly IDisposable _disposable2;
	40	+
	41	+ public Foo()
	42	+ {
	43	+ _bar = new Bar();
	44	+ }
	45	+
	46	+ public void Dispose()
	47	+ {
	48	+ _disposable1.Dispose();
	49	+ _disposable2.Dispose();
	50	+ }
	51	+}{{/code}}
	52	+|(% style="width:465px" %)Наследование. Отчистка неуправляемых и управляемых ресурсов.|(% style="width:1030px" %){{code language="C#"}}class DerivedClassWithFinalizer : BaseClassWithFinalizer
	53	+{
	54	+ // To detect redundant calls
	55	+ private bool _disposedValue;
	56	+
	57	+ ~DerivedClassWithFinalizer() => this.Dispose(false);
	58	+
	59	+ // Protected implementation of Dispose pattern.
	60	+ protected override void Dispose(bool disposing)
	61	+ {
	62	+ if (!_disposedValue)
	63	+ {
	64	+ if (disposing)
	65	+ {
	66	+ // TODO: dispose managed state (managed objects).
	67	+ }
	68	+
	69	+ // TODO: free unmanaged resources (unmanaged objects) and override a finalizer below.
	70	+ // TODO: set large fields to null.
	71	+ _disposedValue = true;
	72	+ }
	73	+
	74	+ // Call the base class implementation.
	75	+ base.Dispose(disposing);
	76	+ }
	77	+}{{/code}}
	78	+
	79	+