Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / Xml / System / Xml / XPath / Internal / NumericExpr.cs / 1305376 / 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. // //[....] //----------------------------------------------------------------------------- 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.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- RecommendedAsConfigurableAttribute.cs
- MLangCodePageEncoding.cs
- GetCryptoTransformRequest.cs
- BindToObject.cs
- HttpClientChannel.cs
- WebServiceAttribute.cs
- ToolBarButtonClickEvent.cs
- CleanUpVirtualizedItemEventArgs.cs
- NamedPermissionSet.cs
- ResourcePermissionBaseEntry.cs
- IChannel.cs
- InvalidPropValue.cs
- DBPropSet.cs
- Run.cs
- ProxyHelper.cs
- WindowsTokenRoleProvider.cs
- LambdaCompiler.Address.cs
- InheritablePropertyChangeInfo.cs
- LingerOption.cs
- AsyncDataRequest.cs
- BitmapDownload.cs
- Location.cs
- DataGridDesigner.cs
- WsrmFault.cs
- FixedSOMImage.cs
- FloaterParaClient.cs
- UnionCodeGroup.cs
- WindowsSpinner.cs
- ToolboxDataAttribute.cs
- StreamAsIStream.cs
- TreeBuilderXamlTranslator.cs
- SqlProfileProvider.cs
- MatrixTransform.cs
- ConstantProjectedSlot.cs
- HybridDictionary.cs
- BodyGlyph.cs
- HwndSource.cs
- SQLCharsStorage.cs
- ExtenderProvidedPropertyAttribute.cs
- ProvideValueServiceProvider.cs
- WorkflowInvoker.cs
- CancellationTokenSource.cs
- ListViewItemMouseHoverEvent.cs
- NumericPagerField.cs
- Bold.cs
- StaticSiteMapProvider.cs
- DbExpressionVisitor.cs
- MenuItem.cs
- SafeMILHandleMemoryPressure.cs
- FeatureSupport.cs
- _ScatterGatherBuffers.cs
- TextModifierScope.cs
- ControlBuilder.cs
- WebPartMenuStyle.cs
- BindableTemplateBuilder.cs
- ControlCollection.cs
- ProcessModelSection.cs
- wmiprovider.cs
- ContainerSelectorBehavior.cs
- SourceElementsCollection.cs
- UnknownBitmapDecoder.cs
- PersistenceException.cs
- XamlPoint3DCollectionSerializer.cs
- AppPool.cs
- ReflectTypeDescriptionProvider.cs
- ExtenderProvidedPropertyAttribute.cs
- FileLogRecordEnumerator.cs
- TableLayoutRowStyleCollection.cs
- CounterCreationData.cs
- EntityStoreSchemaGenerator.cs
- MultiDataTrigger.cs
- EmbeddedMailObject.cs
- SecurityUtils.cs
- CfgParser.cs
- DelimitedListTraceListener.cs
- MatrixStack.cs
- QueryOperatorEnumerator.cs
- InheritanceRules.cs
- FormatSettings.cs
- _LazyAsyncResult.cs
- TableItemStyle.cs
- FeatureAttribute.cs
- QuotaThrottle.cs
- TransactedBatchingBehavior.cs
- ToolboxItemCollection.cs
- CommentAction.cs
- securitycriticaldata.cs
- XmlReflectionImporter.cs
- VirtualPath.cs
- ObjectViewFactory.cs
- IncrementalReadDecoders.cs
- JournalNavigationScope.cs
- DispatchWrapper.cs
- WebPartMinimizeVerb.cs
- Underline.cs
- XmlWriterSettings.cs
- TextEvent.cs
- StructuralType.cs
- Identity.cs
- ListBindingHelper.cs