StaticDataManager.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / XmlUtils / System / Xml / Xsl / IlGen / StaticDataManager.cs / 1305376 / StaticDataManager.cs
                        

                        
                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
// [....] 
// [....]
//----------------------------------------------------------------------------- 
 
using System.Collections;
using System.Collections.Generic; 
using System.Diagnostics;
using System.Reflection;
using System.Xml.Xsl.Qil;
using System.Xml.Xsl.Runtime; 

namespace System.Xml.Xsl.IlGen { 
 
    /// 
    /// This internal class maintains a list of unique values.  Each unique value is assigned a unique ID, which can 
    /// be used to quickly access the value, since it corresponds to the value's position in the list.
    /// 
    internal class UniqueList {
        private Dictionary lookup = new Dictionary(); 
        private List list = new List();
 
        ///  
        /// If "value" is already in the list, do not add it.  Return the unique ID of the value in the list.
        ///  
        public int Add(T value) {
            int id;

            if (!this.lookup.ContainsKey(value)) { 
                // The value does not yet exist, so add it to the list
                id = list.Count; 
                this.lookup.Add(value, id); 
                this.list.Add(value);
            } 
            else {
                id = this.lookup[value];
            }
 
            return id;
        } 
 
        /// 
        /// Return an array of the unique values. 
        /// 
        public T[] ToArray() {
            return list.ToArray();
        } 
    }
 
 
    /// 
    /// Manages all static data that is used by the runtime.  This includes: 
    ///   1. All NCName and QName atoms that will be used at run-time
    ///   2. All QName filters that will be used at run-time
    ///   3. All Xml types that will be used at run-time
    ///   4. All global variables and parameters 
    /// 
    internal class StaticDataManager { 
        private UniqueList uniqueNames; 
        private UniqueList uniqueFilters;
        private List prefixMappingsList; 
        private List globalNames;
        private UniqueList earlyInfo;
        private UniqueList uniqueXmlTypes;
        private UniqueList uniqueCollations; 

        ///  
        /// Add "name" to the list of unique names that are used by this query.  Return the index of 
        /// the unique name in the list.
        ///  
        public int DeclareName(string name) {
            if (this.uniqueNames == null)
                this.uniqueNames = new UniqueList();
 
            return this.uniqueNames.Add(name);
        } 
 
        /// 
        /// Return an array of all names that are used by the query (null if no names). 
        /// 
        public string[] Names {
            get { return (this.uniqueNames != null) ? this.uniqueNames.ToArray() : null; }
        } 

        ///  
        /// Add a name filter to the list of unique filters that are used by this query.  Return the index of 
        /// the unique filter in the list.
        ///  
        public int DeclareNameFilter(string locName, string nsUri) {
            if (this.uniqueFilters == null)
                this.uniqueFilters = new UniqueList();
 
            return this.uniqueFilters.Add(new Int32Pair(DeclareName(locName), DeclareName(nsUri)));
        } 
 
        /// 
        /// Return an array of all name filters, where each name filter is represented as a pair of integer offsets (localName, namespaceUri) 
        /// into the Names array (null if no name filters).
        /// 
        public Int32Pair[] NameFilters {
            get { return (this.uniqueFilters != null) ? this.uniqueFilters.ToArray() : null; } 
        }
 
        ///  
        /// Add a list of QilExpression NamespaceDeclarations to an array of strings (prefix followed by namespace URI).
        /// Return index of the prefix mappings within this array. 
        /// 
        public int DeclarePrefixMappings(IList list) {
            StringPair[] prefixMappings;
 
            // Fill mappings array
            prefixMappings = new StringPair[list.Count]; 
            for (int i = 0; i < list.Count; i++) { 
                // Each entry in mappings array must be a constant NamespaceDeclaration
                QilBinary ndNmspDecl = (QilBinary) list[i]; 
                Debug.Assert(ndNmspDecl != null);
                Debug.Assert(ndNmspDecl.Left is QilLiteral && ndNmspDecl.Right is QilLiteral);

                prefixMappings[i] = new StringPair((string) (QilLiteral) ndNmspDecl.Left, (string) (QilLiteral) ndNmspDecl.Right); 
            }
 
            // Add mappings to list and return index 
            if (this.prefixMappingsList == null)
                this.prefixMappingsList = new List(); 

            this.prefixMappingsList.Add(prefixMappings);
            return this.prefixMappingsList.Count - 1;
        } 

        ///  
        /// Return an array of all prefix mappings that are used by the query to compute names (null if no mappings). 
        /// 
        public StringPair[][] PrefixMappingsList { 
            get { return (this.prefixMappingsList != null) ? this.prefixMappingsList.ToArray() : null; }
        }

        ///  
        /// Declare a new global variable or parameter.
        ///  
        public int DeclareGlobalValue(string name) { 
            int idx;
 
            if (this.globalNames == null)
                this.globalNames = new List();

            idx = this.globalNames.Count; 
            this.globalNames.Add(name);
            return idx; 
        } 

        ///  
        /// Return an array containing the names of all global variables and parameters.
        /// 
        public string[] GlobalNames {
            get { return (this.globalNames != null) ? this.globalNames.ToArray() : null; } 
        }
 
        ///  
        /// Add early bound information to a list that is used by this query.  Return the index of
        /// the early bound information in the list. 
        /// 
        public int DeclareEarlyBound(string namespaceUri, Type ebType) {
            if (this.earlyInfo == null)
                this.earlyInfo = new UniqueList(); 

            return this.earlyInfo.Add(new EarlyBoundInfo(namespaceUri, ebType)); 
        } 

        ///  
        /// Return an array of all early bound information that is used by the query (null if none is used).
        /// 
        public EarlyBoundInfo[] EarlyBound {
            get { 
                if (this.earlyInfo != null)
                    return this.earlyInfo.ToArray(); 
 
                return null;
            } 
        }

        /// 
        /// Add "type" to the list of unique types that are used by this query.  Return the index of 
        /// the unique type in the list.
        ///  
        public int DeclareXmlType(XmlQueryType type) { 
            if (this.uniqueXmlTypes == null)
                this.uniqueXmlTypes = new UniqueList(); 

            XmlQueryTypeFactory.CheckSerializability(type);
            return this.uniqueXmlTypes.Add(type);
        } 

        ///  
        /// Return an array of all types that are used by the query (null if no names). 
        /// 
        public XmlQueryType[] XmlTypes { 
            get { return (this.uniqueXmlTypes != null) ? this.uniqueXmlTypes.ToArray() : null; }
        }

        ///  
        /// Add "collation" to the list of unique collations that are used by this query.  Return the index of
        /// the unique collation in the list. 
        ///  
        public int DeclareCollation(string collation) {
            if (this.uniqueCollations == null) 
                this.uniqueCollations = new UniqueList();

            return this.uniqueCollations.Add(XmlCollation.Create(collation));
        } 

        ///  
        /// Return an array of all collations that are used by the query (null if no names). 
        /// 
        public XmlCollation[] Collations { 
            get { return (this.uniqueCollations != null) ? this.uniqueCollations.ToArray() : null; }
        }
    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.

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