Code:
/ DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / Xml / System / Xml / XPath / Internal / NumericExpr.cs / 1 / NumericExpr.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //[....] //----------------------------------------------------------------------------- namespace MS.Internal.Xml.XPath { using System; using System.Xml; using System.Xml.XPath; using System.Diagnostics; using System.Globalization; using System.Xml.Xsl; internal sealed class NumericExpr : ValueQuery { private Operator.Op op; private Query opnd1; private Query opnd2; public NumericExpr(Operator.Op op, Query opnd1, Query opnd2) { Debug.Assert( op == Operator.Op.PLUS || op == Operator.Op.MINUS || op == Operator.Op.MUL || op == Operator.Op.DIV || op == Operator.Op.MOD ); Debug.Assert(opnd1 != null && opnd2 != null); if (opnd1.StaticType != XPathResultType.Number) { opnd1 = new NumberFunctions(Function.FunctionType.FuncNumber, opnd1); } if (opnd2.StaticType != XPathResultType.Number) { opnd2 = new NumberFunctions(Function.FunctionType.FuncNumber, opnd2); } this.op = op; this.opnd1 = opnd1; this.opnd2 = opnd2; } private NumericExpr(NumericExpr other) : base(other) { this.op = other.op; this.opnd1 = Clone(other.opnd1); this.opnd2 = Clone(other.opnd2); } public override void SetXsltContext(XsltContext context){ opnd1.SetXsltContext(context); opnd2.SetXsltContext(context); } public override object Evaluate(XPathNodeIterator nodeIterator) { return GetValue(this.op, XmlConvert.ToXPathDouble(opnd1.Evaluate(nodeIterator)), XmlConvert.ToXPathDouble(opnd2.Evaluate(nodeIterator)) ); } private static double GetValue(Operator.Op op, double n1, double n2) { Debug.Assert(op == Operator.Op.PLUS || op == Operator.Op.MINUS || op == Operator.Op.MOD || op == Operator.Op.DIV || op == Operator.Op.MUL); switch (op) { case Operator.Op.PLUS : return n1 + n2; case Operator.Op.MINUS : return n1 - n2; case Operator.Op.MOD : return n1 % n2; case Operator.Op.DIV : return n1 / n2; case Operator.Op.MUL : return n1 * n2; } return 0; } public override XPathResultType StaticType { get { return XPathResultType.Number; } } public override XPathNodeIterator Clone() { return new NumericExpr(this); } public override void PrintQuery(XmlWriter w) { w.WriteStartElement(this.GetType().Name); w.WriteAttributeString("op", op.ToString()); opnd1.PrintQuery(w); opnd2.PrintQuery(w); w.WriteEndElement(); } } } // 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
- BitmapMetadataEnumerator.cs
- ExtensibleClassFactory.cs
- InvalidateEvent.cs
- ConstNode.cs
- SchemaElementLookUpTable.cs
- MetadataImporterQuotas.cs
- BindableAttribute.cs
- Nullable.cs
- EarlyBoundInfo.cs
- XPathNodeInfoAtom.cs
- URLMembershipCondition.cs
- ChannelSinkStacks.cs
- WindowsAuthenticationModule.cs
- SubstitutionList.cs
- TypeForwardedFromAttribute.cs
- SafeBuffer.cs
- ArrayWithOffset.cs
- iisPickupDirectory.cs
- BasicExpressionVisitor.cs
- SqlDataSourceCache.cs
- ToolBarPanel.cs
- ValidationPropertyAttribute.cs
- ConfigurationElementCollection.cs
- WorkflowViewStateService.cs
- TextAutomationPeer.cs
- XhtmlConformanceSection.cs
- EditorBrowsableAttribute.cs
- DataGridViewSortCompareEventArgs.cs
- MessageQueue.cs
- PropertyTab.cs
- ExpressionBinding.cs
- UniqueIdentifierService.cs
- Queue.cs
- MessageBox.cs
- SoapHttpTransportImporter.cs
- RSACryptoServiceProvider.cs
- FlagsAttribute.cs
- DefaultSection.cs
- MonikerHelper.cs
- PrintSystemException.cs
- GridViewCommandEventArgs.cs
- CoreChannel.cs
- ToolStripContentPanelRenderEventArgs.cs
- IconConverter.cs
- MaterialGroup.cs
- IIS7ConfigurationLoader.cs
- PackageStore.cs
- ShaderRenderModeValidation.cs
- ArgumentDesigner.xaml.cs
- XmlWriter.cs
- OnOperation.cs
- ChtmlSelectionListAdapter.cs
- DeviceContext2.cs
- StylusCollection.cs
- CustomAttributeFormatException.cs
- MarkupProperty.cs
- ClientTargetSection.cs
- HebrewNumber.cs
- TextChangedEventArgs.cs
- RC2CryptoServiceProvider.cs
- MetafileHeaderEmf.cs
- PropertyTab.cs
- PipelineModuleStepContainer.cs
- Clipboard.cs
- HttpApplication.cs
- BooleanFunctions.cs
- HtmlControlPersistable.cs
- ThumbAutomationPeer.cs
- TreeWalker.cs
- unitconverter.cs
- DecoderFallbackWithFailureFlag.cs
- MarkupCompilePass1.cs
- FontConverter.cs
- GetLedgerEntryForRecipientRequest.cs
- UnknownMessageReceivedEventArgs.cs
- ItemsChangedEventArgs.cs
- CheckPair.cs
- DateTimePicker.cs
- CompositionAdorner.cs
- SyndicationDeserializer.cs
- DataFormats.cs
- compensatingcollection.cs
- HostProtectionException.cs
- DefaultMergeHelper.cs
- MethodBody.cs
- XmlWriterTraceListener.cs
- CollectionChange.cs
- DragEvent.cs
- StorageTypeMapping.cs
- FunctionNode.cs
- WindowsListViewSubItem.cs
- CfgRule.cs
- OraclePermission.cs
- ComponentChangedEvent.cs
- RequestQueue.cs
- HtmlInputText.cs
- DrawTreeNodeEventArgs.cs
- AlignmentXValidation.cs
- TransformedBitmap.cs
- SignatureToken.cs