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
- QilReplaceVisitor.cs
- ExternalCalls.cs
- ErrorRuntimeConfig.cs
- GridViewRow.cs
- SafeNativeMethodsMilCoreApi.cs
- UnknownBitmapEncoder.cs
- InlinedAggregationOperatorEnumerator.cs
- StringExpressionSet.cs
- WsatConfiguration.cs
- DrawingGroup.cs
- WebPartExportVerb.cs
- SystemInfo.cs
- DesignerActionListCollection.cs
- SqlDataSourceCustomCommandEditor.cs
- GridViewActionList.cs
- MimeWriter.cs
- CanonicalFontFamilyReference.cs
- BindingFormattingDialog.cs
- FlowDocumentScrollViewerAutomationPeer.cs
- WindowPattern.cs
- ScrollBarAutomationPeer.cs
- HostedTransportConfigurationBase.cs
- TypeResolver.cs
- ObjectListCommandCollection.cs
- DataListItemEventArgs.cs
- ContractInstanceProvider.cs
- xmlfixedPageInfo.cs
- ToolStripSystemRenderer.cs
- InputProviderSite.cs
- SystemUnicastIPAddressInformation.cs
- ClientEventManager.cs
- HandlerFactoryWrapper.cs
- TraceListeners.cs
- XmlChildEnumerator.cs
- DecoderFallbackWithFailureFlag.cs
- Mapping.cs
- DesignerGenericWebPart.cs
- BaseCodePageEncoding.cs
- SegmentInfo.cs
- SQLSingle.cs
- AlternationConverter.cs
- FunctionGenerator.cs
- BeginGetFileNameFromUserRequest.cs
- BridgeDataRecord.cs
- DesignTimeResourceProviderFactoryAttribute.cs
- CmsInterop.cs
- SafeCertificateStore.cs
- CodeIdentifiers.cs
- ConstraintCollection.cs
- Tuple.cs
- Exceptions.cs
- ManagedFilter.cs
- IdentityHolder.cs
- XamlToRtfParser.cs
- UserPreferenceChangingEventArgs.cs
- ReturnType.cs
- NamespaceDisplay.xaml.cs
- ReferenceSchema.cs
- WebHttpElement.cs
- ContentFileHelper.cs
- StructuralType.cs
- RadialGradientBrush.cs
- CursorConverter.cs
- SoapAttributes.cs
- CuspData.cs
- VisualStyleElement.cs
- ClusterRegistryConfigurationProvider.cs
- PropertyManager.cs
- DesignerAttributeInfo.cs
- TdsParserSessionPool.cs
- OrderedEnumerableRowCollection.cs
- StateChangeEvent.cs
- CacheChildrenQuery.cs
- ProjectionPruner.cs
- BinaryOperationBinder.cs
- DbDataReader.cs
- WindowsSecurityTokenAuthenticator.cs
- StateManagedCollection.cs
- StructuredTypeEmitter.cs
- ValueType.cs
- EmbeddedMailObjectCollectionEditor.cs
- SqlDependencyUtils.cs
- IntegerValidatorAttribute.cs
- DispatcherTimer.cs
- SharedStatics.cs
- OracleBinary.cs
- RepeatBehavior.cs
- AppSettingsSection.cs
- EdmComplexTypeAttribute.cs
- XhtmlBasicControlAdapter.cs
- Restrictions.cs
- MediaTimeline.cs
- UnionCodeGroup.cs
- DesignTimeParseData.cs
- ObjectQuery_EntitySqlExtensions.cs
- XmlQualifiedNameTest.cs
- XmlStreamStore.cs
- ExtensibleClassFactory.cs
- BitmapEncoder.cs
- XsdDataContractExporter.cs