Code:
/ FX-1434 / FX-1434 / 1.0 / untmp / whidbey / REDBITS / ndp / fx / src / xsp / System / Web / Util / ObjectSet.cs / 1 / ObjectSet.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- /* * ObjectSet class * * Copyright (c) 1999 Microsoft Corporation */ // Generics are causing perf regressions, so don't use them for now until we can figure // it out (VSWhidbey 463572) //#define USEGENERICSET namespace System.Web.Util { using System.Reflection; using System.Collections; using System.Collections.Generic; #if USEGENERICSET /* * Holds a set of unique objects of a specific type */ internal class ObjectSet: ICollection , ICollection { protected const int StartingCapacity = 8; private class EmptyEnumerator : IEnumerator { object IEnumerator.Current { get { return null; } } T IEnumerator .Current { get { return default(T); } } bool IEnumerator.MoveNext() { return false; } void IEnumerator.Reset() { } void IDisposable.Dispose() { } } private static EmptyEnumerator _emptyEnumerator = new EmptyEnumerator(); private Dictionary _objects; protected virtual Dictionary CreateDictionary() { return new Dictionary (StartingCapacity); } public void AddCollection(ICollection c) { foreach (T o in c) { Add(o); } } public void Add(T o) { if (_objects == null) { _objects = CreateDictionary(); } _objects[o] = null; } public bool Remove(T o) { if (_objects == null) return false; return _objects.Remove(o); } public bool Contains(T o) { if (_objects == null) return false; return _objects.ContainsKey(o); } bool ICollection .IsReadOnly { get { return true; } } public void Clear() { if (_objects != null) _objects.Clear(); } IEnumerator IEnumerable .GetEnumerator() { if (_objects == null) return _emptyEnumerator; return _objects.Keys.GetEnumerator(); } IEnumerator IEnumerable.GetEnumerator() { if (_objects == null) return _emptyEnumerator; return _objects.Keys.GetEnumerator(); } public int Count { get { if (_objects == null) return 0; return _objects.Keys.Count; } } void ICollection .CopyTo(T[] array, int index) { if (_objects != null) _objects.Keys.CopyTo(array, index); } bool ICollection.IsSynchronized { get { if (_objects == null) return true; return ((ICollection)_objects.Keys).IsSynchronized; } } object ICollection.SyncRoot { get { if (_objects == null) return this; return ((ICollection)_objects.Keys).SyncRoot; } } public void CopyTo(Array array, int index) { if (_objects != null) ((ICollection)_objects.Keys).CopyTo(array, index); } } internal class StringSet : ObjectSet { } internal class CaseInsensitiveStringSet : StringSet { protected override Dictionary CreateDictionary() { return new Dictionary (StartingCapacity, StringComparer.InvariantCultureIgnoreCase); } } internal class VirtualPathSet : ObjectSet { } internal class AssemblySet : ObjectSet { internal static AssemblySet Create(ICollection c) { AssemblySet objectSet = new AssemblySet(); objectSet.AddCollection(c); return objectSet; } } internal class BuildProviderSet : ObjectSet { } internal class ControlSet : ObjectSet { } #else /* * Holds a set of unique objects */ internal class ObjectSet: ICollection { private class EmptyEnumerator: IEnumerator { public object Current { get { return null; } } public bool MoveNext() { return false; } public void Reset() {} } private static EmptyEnumerator _emptyEnumerator = new EmptyEnumerator(); private IDictionary _objects; internal ObjectSet() {} // By default, it's case sensitive protected virtual bool CaseInsensitive { get { return false; } } public void Add(object o) { if (_objects == null) _objects = new System.Collections.Specialized.HybridDictionary(CaseInsensitive); _objects[o] = null; } public void AddCollection(ICollection c) { foreach (object o in c) { Add(o); } } public void Remove(object o) { if (_objects == null) return; _objects.Remove(o); } public bool Contains(object o) { if (_objects == null) return false; return _objects.Contains(o); } IEnumerator IEnumerable.GetEnumerator() { if (_objects == null) return _emptyEnumerator; return _objects.Keys.GetEnumerator(); } public int Count { get { if (_objects == null) return 0; return _objects.Keys.Count; } } bool ICollection.IsSynchronized { get { if (_objects == null) return true; return _objects.Keys.IsSynchronized; } } object ICollection.SyncRoot { get { if (_objects == null) return this; return _objects.Keys.SyncRoot; } } public void CopyTo(Array array, int index) { if (_objects != null) _objects.Keys.CopyTo(array, index); } } internal class StringSet: ObjectSet { internal StringSet() {} } internal class CaseInsensitiveStringSet: StringSet { protected override bool CaseInsensitive { get { return true; } } } internal class VirtualPathSet : ObjectSet { internal VirtualPathSet() { } } internal class AssemblySet : ObjectSet { internal AssemblySet() { } internal static AssemblySet Create(ICollection c) { AssemblySet objectSet = new AssemblySet(); objectSet.AddCollection(c); return objectSet; } } internal class BuildProviderSet : ObjectSet { internal BuildProviderSet() { } } internal class ControlSet : ObjectSet { internal ControlSet() { } } #endif }
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- ToolBar.cs
- EventWaitHandleSecurity.cs
- DataServiceRequest.cs
- RenderData.cs
- ListBox.cs
- ProcessHostServerConfig.cs
- BaseComponentEditor.cs
- SmiTypedGetterSetter.cs
- TrustLevel.cs
- ListDictionaryInternal.cs
- FreeIndexList.cs
- XmlSchemaInclude.cs
- MetabaseSettings.cs
- HttpCacheParams.cs
- OleDbTransaction.cs
- NegationPusher.cs
- DataControlFieldCollection.cs
- SchemaLookupTable.cs
- ValuePattern.cs
- PathFigureCollection.cs
- PersonalizationStateQuery.cs
- EventRouteFactory.cs
- HttpHandlerAction.cs
- SafeWaitHandle.cs
- AppDomainManager.cs
- DataFormats.cs
- ParagraphResult.cs
- ButtonPopupAdapter.cs
- Root.cs
- SecurityManager.cs
- MenuAdapter.cs
- CompModSwitches.cs
- SQLBoolean.cs
- PackagingUtilities.cs
- ListenerElementsCollection.cs
- Label.cs
- TrustManagerPromptUI.cs
- ServiceNameCollection.cs
- WebPartChrome.cs
- ClientConfigurationHost.cs
- DirectoryInfo.cs
- PrivateUnsafeNativeCompoundFileMethods.cs
- XmlAnyElementAttributes.cs
- Keywords.cs
- DataProtection.cs
- XamlSerializer.cs
- ConfigurationSectionGroupCollection.cs
- DataSourceDesigner.cs
- ServicesUtilities.cs
- SmtpSpecifiedPickupDirectoryElement.cs
- SystemUdpStatistics.cs
- EntityParameter.cs
- shaperfactory.cs
- BindingContext.cs
- ComponentResourceKey.cs
- MasterPageCodeDomTreeGenerator.cs
- ErrorRuntimeConfig.cs
- ListBindingHelper.cs
- BackStopAuthenticationModule.cs
- StringToken.cs
- TextEditorDragDrop.cs
- RangeValidator.cs
- SplitterPanel.cs
- TreeViewDataItemAutomationPeer.cs
- Translator.cs
- DynamicArgumentDesigner.xaml.cs
- MetadataElement.cs
- DocumentViewer.cs
- CodeStatement.cs
- PinnedBufferMemoryStream.cs
- FormattedTextSymbols.cs
- ExpressionBinding.cs
- ReadWriteSpinLock.cs
- ToolStripDropTargetManager.cs
- TypefaceCollection.cs
- ActiveXContainer.cs
- SqlFunctionAttribute.cs
- DeclaredTypeValidatorAttribute.cs
- ProfileInfo.cs
- AvTrace.cs
- IndependentAnimationStorage.cs
- SQLStringStorage.cs
- DataGridViewLinkCell.cs
- BinaryNode.cs
- DataServiceRequestException.cs
- OleDbFactory.cs
- SqlBooleanizer.cs
- DataBoundLiteralControl.cs
- InternalConfigConfigurationFactory.cs
- WebPartMovingEventArgs.cs
- TrackingConditionCollection.cs
- FrameworkElementFactoryMarkupObject.cs
- UIPermission.cs
- QueryResult.cs
- WorkflowServiceBehavior.cs
- StylesEditorDialog.cs
- PassportAuthenticationModule.cs
- SafeProcessHandle.cs
- DataGridViewCellStyleChangedEventArgs.cs
- DrawingContext.cs