Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / whidbey / NetFXspW7 / ndp / fx / src / XmlUtils / System / Xml / Xsl / Xslt / KeyMatchBuilder.cs / 1 / KeyMatchBuilder.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //[....] //----------------------------------------------------------------------------- using System; using System.Diagnostics; using System.Collections; using System.Collections.Generic; using System.Xml; using System.Xml.XPath; using MS.Internal.Xml; using System.Xml.Xsl.XPath; using System.Xml.Xsl.Qil; namespace System.Xml.Xsl.Xslt { internal class KeyMatchBuilder : XPathBuilder, XPathPatternParser.IPatternBuilder { private int depth = 0; PathConvertor convertor; public KeyMatchBuilder(IXPathEnvironment env) : base(env) { convertor = new PathConvertor(env.Factory); } public override void StartBuild() { Debug.Assert(0 <= depth && depth <= 1, "this shouldn't happen"); if (depth == 0) { base.StartBuild(); } depth ++; } public override QilNode EndBuild(QilNode result) { depth --; Debug.Assert(0 <= depth && depth <= 1, "this shouldn't happen"); if (result == null) { // special door to clean builder state in exception handlers return base.EndBuild(result); } if (depth == 0) { Debug.Assert(base.numFixupLast == 0); Debug.Assert(base.numFixupPosition == 0); result = convertor.ConvertReletive2Absolute(result, base.fixupCurrent); result = base.EndBuild(result); } return result; } // -------------------------------------- GetPredicateBuilder() --------------------------------------- public virtual IXPathBuilderGetPredicateBuilder(QilNode ctx) { return this; } // This code depends on particula shapes that XPathBuilder generates. // It works only on pathes. // ToDo: We can do better here. internal class PathConvertor : QilReplaceVisitor { new XPathQilFactory f; QilNode fixup; public PathConvertor(XPathQilFactory f) : base (f.BaseFactory) { this.f = f; } public QilNode ConvertReletive2Absolute(QilNode node, QilNode fixup) { Debug.Assert(node != null); Debug.Assert(fixup != null); this.fixup = fixup; return this.Visit(node); } // transparantly passing through Union and DocOrder protected override QilNode Visit(QilNode n) { if ( n.NodeType == QilNodeType.Union || n.NodeType == QilNodeType.DocOrderDistinct || n.NodeType == QilNodeType.Filter || n.NodeType == QilNodeType.Loop ) { return base.Visit(n); } return n; } // Filers that travers Content being converted to global travers: // Filter($j= ... Filter($i = Content(fixup), ...)) -> Filter($j= ... Filter($i = Loop($j = DesendentOrSelf(Root(fixup)), Content($j), ...))) protected override QilNode VisitLoop(QilLoop n) { if (n.Variable.Binding.NodeType == QilNodeType.Root || n.Variable.Binding.NodeType == QilNodeType.Deref) { // This is absolute path already. We shouldn't touch it return n; } if (n.Variable.Binding.NodeType == QilNodeType.Content) { // This is "begin" of reletive path. Let's rewrite it as absolute: QilUnary content = (QilUnary)n.Variable.Binding; Debug.Assert(content.Child == this.fixup, "Unexpected content node"); QilIterator it = f.For(f.DescendantOrSelf(f.Root(this.fixup))); content.Child = it; n.Variable.Binding = f.Loop(it, content); return n; } n.Variable.Binding = Visit(n.Variable.Binding); return n; } protected override QilNode VisitFilter(QilLoop n) { return VisitLoop(n); } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //------------------------------------------------------------------------------ // // Copyright (c) Microsoft Corporation. All rights reserved. // //[....] //----------------------------------------------------------------------------- using System; using System.Diagnostics; using System.Collections; using System.Collections.Generic; using System.Xml; using System.Xml.XPath; using MS.Internal.Xml; using System.Xml.Xsl.XPath; using System.Xml.Xsl.Qil; namespace System.Xml.Xsl.Xslt { internal class KeyMatchBuilder : XPathBuilder, XPathPatternParser.IPatternBuilder { private int depth = 0; PathConvertor convertor; public KeyMatchBuilder(IXPathEnvironment env) : base(env) { convertor = new PathConvertor(env.Factory); } public override void StartBuild() { Debug.Assert(0 <= depth && depth <= 1, "this shouldn't happen"); if (depth == 0) { base.StartBuild(); } depth ++; } public override QilNode EndBuild(QilNode result) { depth --; Debug.Assert(0 <= depth && depth <= 1, "this shouldn't happen"); if (result == null) { // special door to clean builder state in exception handlers return base.EndBuild(result); } if (depth == 0) { Debug.Assert(base.numFixupLast == 0); Debug.Assert(base.numFixupPosition == 0); result = convertor.ConvertReletive2Absolute(result, base.fixupCurrent); result = base.EndBuild(result); } return result; } // -------------------------------------- GetPredicateBuilder() --------------------------------------- public virtual IXPathBuilderGetPredicateBuilder(QilNode ctx) { return this; } // This code depends on particula shapes that XPathBuilder generates. // It works only on pathes. // ToDo: We can do better here. internal class PathConvertor : QilReplaceVisitor { new XPathQilFactory f; QilNode fixup; public PathConvertor(XPathQilFactory f) : base (f.BaseFactory) { this.f = f; } public QilNode ConvertReletive2Absolute(QilNode node, QilNode fixup) { Debug.Assert(node != null); Debug.Assert(fixup != null); this.fixup = fixup; return this.Visit(node); } // transparantly passing through Union and DocOrder protected override QilNode Visit(QilNode n) { if ( n.NodeType == QilNodeType.Union || n.NodeType == QilNodeType.DocOrderDistinct || n.NodeType == QilNodeType.Filter || n.NodeType == QilNodeType.Loop ) { return base.Visit(n); } return n; } // Filers that travers Content being converted to global travers: // Filter($j= ... Filter($i = Content(fixup), ...)) -> Filter($j= ... Filter($i = Loop($j = DesendentOrSelf(Root(fixup)), Content($j), ...))) protected override QilNode VisitLoop(QilLoop n) { if (n.Variable.Binding.NodeType == QilNodeType.Root || n.Variable.Binding.NodeType == QilNodeType.Deref) { // This is absolute path already. We shouldn't touch it return n; } if (n.Variable.Binding.NodeType == QilNodeType.Content) { // This is "begin" of reletive path. Let's rewrite it as absolute: QilUnary content = (QilUnary)n.Variable.Binding; Debug.Assert(content.Child == this.fixup, "Unexpected content node"); QilIterator it = f.For(f.DescendantOrSelf(f.Root(this.fixup))); content.Child = it; n.Variable.Binding = f.Loop(it, content); return n; } n.Variable.Binding = Visit(n.Variable.Binding); return n; } protected override QilNode VisitFilter(QilLoop n) { return VisitLoop(n); } } } } // 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
- IdentityManager.cs
- XmlSchemaSequence.cs
- XmlCollation.cs
- UrlParameterReader.cs
- LineInfo.cs
- WindowsScrollBarBits.cs
- SqlDataSourceView.cs
- TextEditorTyping.cs
- MetadataArtifactLoaderCompositeFile.cs
- ControlPropertyNameConverter.cs
- Gdiplus.cs
- cookieexception.cs
- CodeTypeReference.cs
- DesignerVerb.cs
- TextSelectionProcessor.cs
- XmlSerializerFormatAttribute.cs
- TextEndOfLine.cs
- PageCodeDomTreeGenerator.cs
- RowUpdatingEventArgs.cs
- MetadataCache.cs
- XPathAxisIterator.cs
- CollectionsUtil.cs
- PluggableProtocol.cs
- HttpHandlerActionCollection.cs
- TargetConverter.cs
- ObjectDataSourceFilteringEventArgs.cs
- StreamWriter.cs
- CategoriesDocument.cs
- ToolStrip.cs
- SslStream.cs
- DataObject.cs
- MemberAccessException.cs
- WinFormsComponentEditor.cs
- GPRECT.cs
- BitmapEncoder.cs
- QueryParameter.cs
- MaskedTextProvider.cs
- BulletedList.cs
- Page.cs
- InvalidTimeZoneException.cs
- Vector3DAnimationBase.cs
- RtfToXamlReader.cs
- SecureUICommand.cs
- WindowsToolbarItemAsMenuItem.cs
- SoapAttributes.cs
- CodeComment.cs
- ValueTable.cs
- FullTextLine.cs
- InvalidComObjectException.cs
- DataObjectPastingEventArgs.cs
- ServiceInstallComponent.cs
- XmlWrappingReader.cs
- BinHexEncoder.cs
- FormViewRow.cs
- CLRBindingWorker.cs
- TransformerInfo.cs
- PasswordRecovery.cs
- AttributeQuery.cs
- PropertyMap.cs
- ElementFactory.cs
- ErrorRuntimeConfig.cs
- Label.cs
- EncoderBestFitFallback.cs
- WebPartRestoreVerb.cs
- WebPartConnectVerb.cs
- TypeConverterMarkupExtension.cs
- DbReferenceCollection.cs
- ToolStripSeparator.cs
- EventData.cs
- FontFamilyValueSerializer.cs
- SrgsDocumentParser.cs
- ErrorFormatter.cs
- AccessDataSourceView.cs
- ResponseStream.cs
- CheckBoxList.cs
- DataGridViewColumnConverter.cs
- Composition.cs
- FormsAuthenticationTicket.cs
- HttpsChannelListener.cs
- localization.cs
- StickyNote.cs
- FixedPosition.cs
- AttributeSetAction.cs
- LookupBindingPropertiesAttribute.cs
- PipeStream.cs
- ActivityExecutor.cs
- ControlDesignerState.cs
- Convert.cs
- FaultContext.cs
- control.ime.cs
- FigureParaClient.cs
- BindingCompleteEventArgs.cs
- DataGridViewAccessibleObject.cs
- StorageEntitySetMapping.cs
- FileDialogPermission.cs
- PathFigure.cs
- PointLightBase.cs
- HealthMonitoringSection.cs
- ADConnectionHelper.cs
- PrePrepareMethodAttribute.cs