QilExpression.cs source code in C# .NET

                        Code:
                         / 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. 
    /// 
    ///  
    ///    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.
    /// 
    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 
        //-----------------------------------------------
 
        /// 
        /// 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 IList WhitespaceRules { 
            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 IList EarlyBoundTypes { 
            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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QilExpression.cs source code in C# .NET

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