Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / Core / Microsoft / Scripting / Utils / ReadOnlyDictionary.cs / 1305376 / ReadOnlyDictionary.cs
/* **************************************************************************** * * Copyright (c) Microsoft Corporation. * * This source code is subject to terms and conditions of the Microsoft Public License. A * copy of the license can be found in the License.html file at the root of this distribution. If * you cannot locate the Microsoft Public License, please send an email to * dlr@microsoft.com. By using this source code in any fashion, you are agreeing to be bound * by the terms of the Microsoft Public License. * * You must not remove this notice, or any other, from this software. * * * ***************************************************************************/ using System.Collections.Generic; using System.Linq.Expressions; #if SILVERLIGHT using System.Core; #endif namespace System.Dynamic.Utils { // Like ReadOnlyCollection: wraps an IDictionary in a read-only wrapper internal sealed class ReadOnlyDictionary : IDictionary { // For wrapping non-readonly Keys, Values collections // Not used for standard dictionaries, which return read-only Keys and Values private sealed class ReadOnlyWrapper : ICollection { // no idea why this warning is here [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Performance", "CA1823:AvoidUnusedPrivateFields")] private readonly ICollection _collection; internal ReadOnlyWrapper(ICollection collection) { _collection = collection; } #region ICollection Members public void Add(T item) { throw Error.CollectionReadOnly(); } public void Clear() { throw Error.CollectionReadOnly(); } public bool Contains(T item) { return _collection.Contains(item); } public void CopyTo(T[] array, int arrayIndex) { _collection.CopyTo(array, arrayIndex); } public int Count { get { return _collection.Count; } } public bool IsReadOnly { get { return true; } } public bool Remove(T item) { throw Error.CollectionReadOnly(); } #endregion #region IEnumerable Members public IEnumerator GetEnumerator() { return _collection.GetEnumerator(); } #endregion #region IEnumerable Members System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator() { return _collection.GetEnumerator(); } #endregion } private readonly IDictionary _dict; internal ReadOnlyDictionary(IDictionary dict) { ReadOnlyDictionary rodict = dict as ReadOnlyDictionary ; _dict = (rodict != null) ? rodict._dict : dict; } #region IDictionary Members public bool ContainsKey(K key) { return _dict.ContainsKey(key); } public ICollection Keys { get { ICollection keys = _dict.Keys; if (!keys.IsReadOnly) { return new ReadOnlyWrapper (keys); } return keys; } } public bool TryGetValue(K key, out V value) { return _dict.TryGetValue(key, out value); } public ICollection Values { get { ICollection values = _dict.Values; if (!values.IsReadOnly) { return new ReadOnlyWrapper (values); } return values; } } public V this[K key] { get { return _dict[key]; } } void IDictionary .Add(K key, V value) { throw Error.CollectionReadOnly(); } bool IDictionary .Remove(K key) { throw Error.CollectionReadOnly(); } V IDictionary .this[K key] { get { return _dict[key]; } set { throw Error.CollectionReadOnly(); } } #endregion #region ICollection > Members public bool Contains(KeyValuePair item) { return _dict.Contains(item); } public void CopyTo(KeyValuePair [] array, int arrayIndex) { _dict.CopyTo(array, arrayIndex); } public int Count { get { return _dict.Count; } } public bool IsReadOnly { get { return true; } } void ICollection >.Add(KeyValuePair item) { throw Error.CollectionReadOnly(); } void ICollection >.Clear() { throw Error.CollectionReadOnly(); } bool ICollection >.Remove(KeyValuePair item) { throw Error.CollectionReadOnly(); } #endregion #region IEnumerable > Members public IEnumerator > GetEnumerator() { return _dict.GetEnumerator(); } #endregion #region IEnumerable Members System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator() { return _dict.GetEnumerator(); } #endregion } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- RelationshipFixer.cs
- DataGridViewColumnDesignTimeVisibleAttribute.cs
- MtomMessageEncodingBindingElement.cs
- FormatPage.cs
- MouseButton.cs
- EmptyStringExpandableObjectConverter.cs
- EdmSchemaAttribute.cs
- WorkflowRuntimeSection.cs
- ConnectionConsumerAttribute.cs
- DockAndAnchorLayout.cs
- UriTemplateTrieLocation.cs
- ADMembershipUser.cs
- ExceptionHelpers.cs
- InvalidCastException.cs
- DecoderFallback.cs
- XmlReaderSettings.cs
- PerformanceCounterPermissionEntry.cs
- WbemProvider.cs
- LinqDataSourceStatusEventArgs.cs
- Walker.cs
- Composition.cs
- BasicKeyConstraint.cs
- PixelShader.cs
- KeyboardDevice.cs
- ButtonChrome.cs
- XmlnsDictionary.cs
- MsmqTransportReceiveParameters.cs
- StrongNameIdentityPermission.cs
- TypeLoader.cs
- ProjectionPathBuilder.cs
- HeaderedItemsControl.cs
- Vars.cs
- UserMapPath.cs
- TreeNodeStyleCollection.cs
- securitycriticaldataformultiplegetandset.cs
- XmlWriter.cs
- ClipboardProcessor.cs
- InfoCardProofToken.cs
- DataView.cs
- SetStoryboardSpeedRatio.cs
- Model3DGroup.cs
- SessionStateItemCollection.cs
- DateTimeConverter2.cs
- KeyPressEvent.cs
- versioninfo.cs
- Section.cs
- LogicalExpr.cs
- PageParserFilter.cs
- TextEndOfSegment.cs
- HandoffBehavior.cs
- X509CertificateInitiatorServiceCredential.cs
- ParserExtension.cs
- SessionStateModule.cs
- MasterPageParser.cs
- XmlNamespaceMapping.cs
- Paragraph.cs
- DispatcherProcessingDisabled.cs
- TileBrush.cs
- GenerateHelper.cs
- MailWriter.cs
- SchemaInfo.cs
- ResourceType.cs
- SynchronizedKeyedCollection.cs
- FormsAuthenticationConfiguration.cs
- TrackingDataItem.cs
- MatrixAnimationUsingPath.cs
- DataFormats.cs
- TextServicesCompartmentContext.cs
- Item.cs
- SQLChars.cs
- MonitorWrapper.cs
- JobCollate.cs
- Semaphore.cs
- Repeater.cs
- HtmlInputButton.cs
- Wildcard.cs
- PriorityItem.cs
- FamilyTypefaceCollection.cs
- MDIClient.cs
- InfoCardService.cs
- AttachedPropertyMethodSelector.cs
- RuleInfoComparer.cs
- ReflectEventDescriptor.cs
- FlowDocumentFormatter.cs
- CodeTypeParameter.cs
- SafePEFileHandle.cs
- CodeDefaultValueExpression.cs
- InstanceCreationEditor.cs
- CodeIdentifier.cs
- AppSecurityManager.cs
- ProgressBar.cs
- BigInt.cs
- StickyNote.cs
- filewebrequest.cs
- PatternMatcher.cs
- IconHelper.cs
- MiniLockedBorderGlyph.cs
- Function.cs
- DesignerSerializerAttribute.cs
- ComponentManagerBroker.cs