Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / Orcas / NetFXw7 / ndp / fx / src / DataEntity / System / Data / Common / EntitySql / DotExpr.cs / 1 / DotExpr.cs
//---------------------------------------------------------------------- //// Copyright (c) Microsoft Corporation. All rights reserved. // // // @owner [....] // @bacukp [....] //--------------------------------------------------------------------- namespace System.Data.Common.EntitySql { using System; using System.Globalization; using System.Collections; using System.Collections.Generic; ////// represents dotExpr (expr)+.Identifier /// internal sealed class DotExpr : Expr #if EXTRA_ENTITYSQL_PARSER_DEBUGGING , IEnumerable#endif { private Expr _leftExpr; private Identifier _identifier; private bool _wasDotIdComputed; private bool _isDottedIdentifier; private string[] _identifierNames; private string _fullName; private int _length; private Expr _leftmostExpr; /// /// initializes /// /// /// internal DotExpr( Expr expr, Identifier id ) { _leftExpr = expr; _identifier = id; } internal Expr Left { get { return _leftExpr; } } internal Identifier Identifier { get { return _identifier; } } internal bool IsDottedIdentifier { get { CheckIfDotIdentifier(); return _isDottedIdentifier; } } internal int Length { get { CheckIfDotIdentifier(); return _length; } } internal string[] Names { get { CheckIfDotIdentifier(); return _identifierNames; } } internal string FullName { get { CheckIfDotIdentifier(); return _fullName; } } internal Expr LeftMostExpression { get { CheckIfDotIdentifier(); return _leftmostExpr; } } // // Delay computation and cache results // private void CheckIfDotIdentifier() { if (_wasDotIdComputed) { return; } _wasDotIdComputed = true; // // Get number of 'elements' // _length = 0; _isDottedIdentifier = false; Expr expr = this; while (expr is DotExpr) { _length++; expr = ((DotExpr)expr).Left; } if (expr is Identifier) { _isDottedIdentifier = true; _length++; } else { _leftmostExpr = expr; } _identifierNames = new string[_length]; int i = _length - 1; expr = this; while (expr is DotExpr) { DotExpr dotExpr = (DotExpr)expr; _identifierNames[i--] = dotExpr.Identifier.Name; expr = dotExpr.Left; } if (null == _leftmostExpr && null != expr) { _identifierNames[i] = ((Identifier)expr).Name; } _fullName = String.Join(".", _identifierNames); } #if EXTRA_ENTITYSQL_PARSER_DEBUGGING #region GetEnumerator public IEnumeratorGetEnumerator() { Expr _expr = this; while (_expr is DotExpr) { yield return _expr; _expr = ((DotExpr)_expr).Left; } } System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator() { return GetEnumerator(); } #endregion #endif } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //---------------------------------------------------------------------- // // Copyright (c) Microsoft Corporation. All rights reserved. // // // @owner [....] // @bacukp [....] //--------------------------------------------------------------------- namespace System.Data.Common.EntitySql { using System; using System.Globalization; using System.Collections; using System.Collections.Generic; ////// represents dotExpr (expr)+.Identifier /// internal sealed class DotExpr : Expr #if EXTRA_ENTITYSQL_PARSER_DEBUGGING , IEnumerable#endif { private Expr _leftExpr; private Identifier _identifier; private bool _wasDotIdComputed; private bool _isDottedIdentifier; private string[] _identifierNames; private string _fullName; private int _length; private Expr _leftmostExpr; /// /// initializes /// /// /// internal DotExpr( Expr expr, Identifier id ) { _leftExpr = expr; _identifier = id; } internal Expr Left { get { return _leftExpr; } } internal Identifier Identifier { get { return _identifier; } } internal bool IsDottedIdentifier { get { CheckIfDotIdentifier(); return _isDottedIdentifier; } } internal int Length { get { CheckIfDotIdentifier(); return _length; } } internal string[] Names { get { CheckIfDotIdentifier(); return _identifierNames; } } internal string FullName { get { CheckIfDotIdentifier(); return _fullName; } } internal Expr LeftMostExpression { get { CheckIfDotIdentifier(); return _leftmostExpr; } } // // Delay computation and cache results // private void CheckIfDotIdentifier() { if (_wasDotIdComputed) { return; } _wasDotIdComputed = true; // // Get number of 'elements' // _length = 0; _isDottedIdentifier = false; Expr expr = this; while (expr is DotExpr) { _length++; expr = ((DotExpr)expr).Left; } if (expr is Identifier) { _isDottedIdentifier = true; _length++; } else { _leftmostExpr = expr; } _identifierNames = new string[_length]; int i = _length - 1; expr = this; while (expr is DotExpr) { DotExpr dotExpr = (DotExpr)expr; _identifierNames[i--] = dotExpr.Identifier.Name; expr = dotExpr.Left; } if (null == _leftmostExpr && null != expr) { _identifierNames[i] = ((Identifier)expr).Name; } _fullName = String.Join(".", _identifierNames); } #if EXTRA_ENTITYSQL_PARSER_DEBUGGING #region GetEnumerator public IEnumeratorGetEnumerator() { Expr _expr = this; while (_expr is DotExpr) { yield return _expr; _expr = ((DotExpr)_expr).Left; } } System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator() { return GetEnumerator(); } #endregion #endif } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- PropertyIdentifier.cs
- ImageSourceConverter.cs
- DataGridViewSortCompareEventArgs.cs
- IpcChannelHelper.cs
- XmlUrlResolver.cs
- IERequestCache.cs
- ReferentialConstraint.cs
- RectangleGeometry.cs
- RectangleHotSpot.cs
- WmpBitmapDecoder.cs
- QuestionEventArgs.cs
- XmlNodeChangedEventArgs.cs
- GlyphRunDrawing.cs
- WmlSelectionListAdapter.cs
- Vector3DKeyFrameCollection.cs
- PipelineModuleStepContainer.cs
- XmlSchemas.cs
- DataGridItem.cs
- KerberosSecurityTokenProvider.cs
- EventDriven.cs
- MetadataItemEmitter.cs
- MenuAdapter.cs
- PointValueSerializer.cs
- StyleXamlParser.cs
- ExtensionQuery.cs
- RsaSecurityKey.cs
- QueueSurrogate.cs
- ConfigurationProperty.cs
- TextElementCollection.cs
- CircleHotSpot.cs
- SqlFlattener.cs
- PermissionListSet.cs
- ArrayElementGridEntry.cs
- AssemblyGen.cs
- ProcessStartInfo.cs
- WizardPanelChangingEventArgs.cs
- CodeTypeDeclaration.cs
- HitTestResult.cs
- FormViewInsertEventArgs.cs
- _SpnDictionary.cs
- RecommendedAsConfigurableAttribute.cs
- IBuiltInEvidence.cs
- MultiSelectRootGridEntry.cs
- StrokeCollectionConverter.cs
- MessagePropertyFilter.cs
- Double.cs
- Formatter.cs
- XmlMemberMapping.cs
- ZoneIdentityPermission.cs
- DataGridViewCellMouseEventArgs.cs
- WindowInteractionStateTracker.cs
- Bidi.cs
- HttpResponseHeader.cs
- DataGridViewLinkCell.cs
- TreeNodeCollectionEditorDialog.cs
- OleDbDataAdapter.cs
- LayeredChannelFactory.cs
- ButtonBaseAdapter.cs
- WindowsListBox.cs
- DocumentXPathNavigator.cs
- DynamicUpdateCommand.cs
- DefaultValueMapping.cs
- CalendarDesigner.cs
- BigInt.cs
- DataObjectFieldAttribute.cs
- ApplicationManager.cs
- XmlAttributeHolder.cs
- DBDataPermission.cs
- Roles.cs
- StackBuilderSink.cs
- WebBrowserPermission.cs
- PersonalizableTypeEntry.cs
- UrlMappingsModule.cs
- ListSortDescription.cs
- NamespaceMapping.cs
- GeometryValueSerializer.cs
- OfTypeExpression.cs
- __Error.cs
- XPathEmptyIterator.cs
- Expander.cs
- ManagementPath.cs
- CompilerInfo.cs
- ListenerConstants.cs
- VectorValueSerializer.cs
- StreamWithDictionary.cs
- ConfigXmlElement.cs
- ConfigXmlSignificantWhitespace.cs
- MarkupObject.cs
- BitmapMetadata.cs
- DrawingCollection.cs
- CollectionConverter.cs
- validationstate.cs
- UnsafeNativeMethods.cs
- ExtensibleClassFactory.cs
- BindingExpression.cs
- SmiContextFactory.cs
- AccessDataSource.cs
- SystemIPv6InterfaceProperties.cs
- CompilerCollection.cs
- TextElementCollection.cs