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/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / XmlUtils / System / Xml / Xsl / QIL / QilExpression.cs / 1305376 / QilExpression.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //[....] //----------------------------------------------------------------------------- using System.Collections.Generic; using System.Xml.Xsl.Runtime; namespace System.Xml.Xsl.Qil { ////// The CQR implementation of QilExpression. /// ////// internal class QilExpression : QilNode { private QilFactory factory; private QilNode isDebug; private QilNode defWSet; private QilNode wsRules; private QilNode gloVars; private QilNode gloParams; private QilNode earlBnd; private QilNode funList; private QilNode rootNod; //----------------------------------------------- // Constructors //----------------------------------------------- ///QilExpression is the XML Query Intermediate Language invented by Michael Brundage and Chris Suver. /// QilExpression is an intermediate representation (IR) for all XML query and view languages. QilExpression is /// designed for optimization, composition with virtual XML views, translation into other forms, /// and direct execution. See also the QIL specification.
////// Construct QIL from a rooted graph of QilNodes with a new factory. /// public QilExpression(QilNodeType nodeType, QilNode root) : this(nodeType, root, new QilFactory()) { } ////// Construct QIL from a rooted graph of QilNodes with a specific factory. /// public QilExpression(QilNodeType nodeType, QilNode root, QilFactory factory) : base(nodeType) { this.factory = factory; this.isDebug = factory.False(); XmlWriterSettings settings = new XmlWriterSettings(); settings.ConformanceLevel = ConformanceLevel.Auto; this.defWSet = factory.LiteralObject(settings); this.wsRules = factory.LiteralObject(new List()); this.gloVars = factory.GlobalVariableList(); this.gloParams = factory.GlobalParameterList(); this.earlBnd = factory.LiteralObject(new List ()); this.funList = factory.FunctionList(); this.rootNod = root; } //----------------------------------------------- // IList methods -- override //----------------------------------------------- public override int Count { get { return 8; } } public override QilNode this[int index] { get { switch (index) { case 0: return this.isDebug; case 1: return this.defWSet; case 2: return this.wsRules; case 3: return this.gloParams; case 4: return this.gloVars; case 5: return this.earlBnd; case 6: return this.funList; case 7: return this.rootNod; default: throw new IndexOutOfRangeException(); } } set { switch (index) { case 0: this.isDebug = value; break; case 1: this.defWSet = value; break; case 2: this.wsRules = value; break; case 3: this.gloParams = value; break; case 4: this.gloVars = value; break; case 5: this.earlBnd = value; break; case 6: this.funList = value; break; case 7: this.rootNod = value; break; default: throw new IndexOutOfRangeException(); } } } //----------------------------------------------- // QilExpression methods //----------------------------------------------- /// /// QilFactory to be used in constructing nodes in this graph. /// public QilFactory Factory { get { return this.factory; } set { this.factory = value; } } ////// True if this expression contains debugging information. /// public bool IsDebug { get { return this.isDebug.NodeType == QilNodeType.True; } set { this.isDebug = value ? this.factory.True() : this.factory.False(); } } ////// Default serialization options that will be used if the user does not supply a writer at execution time. /// public XmlWriterSettings DefaultWriterSettings { get { return (XmlWriterSettings) ((QilLiteral) this.defWSet).Value; } set { value.ReadOnly = true; ((QilLiteral) this.defWSet).Value = value; } } ////// Xslt whitespace strip/preserve rules. /// public IListWhitespaceRules { get { return (IList ) ((QilLiteral) this.wsRules).Value; } set { ((QilLiteral) this.wsRules).Value = value; } } /// /// External parameters. /// public QilList GlobalParameterList { get { return (QilList) this.gloParams; } set { this.gloParams = value; } } ////// Global variables. /// public QilList GlobalVariableList { get { return (QilList) this.gloVars; } set { this.gloVars = value; } } ////// Early bound function objects. /// public IListEarlyBoundTypes { get { return (IList ) ((QilLiteral) this.earlBnd).Value; } set { ((QilLiteral) this.earlBnd).Value = value; } } /// /// Function definitions. /// public QilList FunctionList { get { return (QilList) this.funList; } set { this.funList = value; } } ////// The root node of the QilExpression graph /// public QilNode Root { get { return this.rootNod; } set { this.rootNod = value; } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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