mcs/class/System.XML/System.Xml.Query/XQueryStaticContext.cs

   1 //
   2 // XQueryStaticContext.cs - XQuery static context components
   3 //
   4 // Author:
   5 //      Atsushi Enomoto <atsushi@ximian.com>
   6 //
   7 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
   8 //
   9 // Permission is hereby granted, free of charge, to any person obtaining
  10 // a copy of this software and associated documentation files (the
  11 // "Software"), to deal in the Software without restriction, including
  12 // without limitation the rights to use, copy, modify, merge, publish,
  13 // distribute, sublicense, and/or sell copies of the Software, and to
  14 // permit persons to whom the Software is furnished to do so, subject to
  15 // the following conditions:
  16 //
  17 // The above copyright notice and this permission notice shall be
  18 // included in all copies or substantial portions of the Software.
  19 //
  20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  27 //
  28
  29 #if NET_2_0
  30
  31 using System;
  32 using System.Collections;
  33 using System.Collections.Specialized;
  34 using System.Globalization;
  35 using System.IO;
  36 using System.Security.Policy;
  37 using System.Xml;
  38 using System.Xml.Query;
  39 using System.Xml.Schema;
  40 using Mono.Xml.XPath2;
  41
  42 namespace Mono.Xml.XPath2
  43 {
  44         // Holds static context, that is created for each module.
  45         internal class XQueryStaticContext
  46         {
  47                 public static XQueryStaticContext Optimize (XQueryStaticContext ctx)
  48                 {
  49                         // FIXME: do type promotion and expression reduction
  50                         return ctx;
  51                 }
  52
  53                 // Don't keep XQueryCompileOptions and XQueryMainModule
  54                 // inside this class. I don't want them affect this instance
  55                 // by being modified externally after the compilation.
  56
  57                 public XQueryStaticContext (
  58                         XQueryCompileOptions options,
  59                         XQueryCompileContext compileContext,
  60                         ExprSequence queryBody,
  61                         XmlSchemaSet inScopeSchemas,
  62                         IDictionary inScopeVariables,
  63                         XQueryFunctionTable functionSignatures,
  64                         IXmlNamespaceResolver nsResolver,
  65                         string defaultFunctionNamespace,
  66                         bool preserveWhitespace,
  67                         bool constructionSpace,
  68                         bool defaultOrdered,
  69                         string baseUri,
  70                         Evidence evidence,
  71                         XQueryCommandImpl commandImpl)
  72                 {
  73                         // Initialization phase.
  74                         compat = options.Compatibility;
  75                         nameTable = options.NameTable;
  76                         this.queryBody = queryBody;
  77                         this.nsResolver = nsResolver;
  78                         this.defaultFunctionNamespace = defaultFunctionNamespace;
  79 //                      elemNSManager = new XmlNamespaceManager (nameTable);
  80 //                      funcNSManager = new XmlNamespaceManager (nameTable);
  81                         xqueryFlagger = options.XQueryFlagger;
  82                         xqueryStaticFlagger = options.XQueryStaticFlagger;
  83 //                      xqueryResolver = options.KnownDocumentResolver;
  84                         knownCollections = (IDictionary) options.KnownCollections.Clone ();
  85                         functions = functionSignatures;
  86                         this.compileContext = compileContext;
  87                         this.inScopeSchemas = inScopeSchemas;
  88                         this.inScopeVariables = inScopeVariables;
  89                         this.preserveWhitespace = preserveWhitespace;
  90                         this.preserveConstructionSpace = constructionSpace;
  91                         this.defaultOrdered = defaultOrdered;
  92                         this.baseUri = baseUri;
  93                         this.defaultCollation = options.DefaultCollation;
  94                         // FIXME: set contextItemStaticType
  95                         // FIXME: set extDocResolver
  96
  97                         this.evidence = evidence;
  98                         this.commandImpl = commandImpl;
  99                 }
 100
 101                 // It holds in-effect components et. al.
 102                 XQueryCompileContext compileContext;
 103
 104                 XmlNameTable nameTable;
 105                 Evidence evidence; // for safe custom function execution / safe assembly loading
 106                 XQueryCommandImpl commandImpl; // for event delegate
 107
 108                 ExprSequence queryBody;
 109
 110                 // See XQuery 1.0, 2.1.1 "Static Context"
 111                 XmlQueryDialect compat; // XPath 1.0 compatibility mode
 112                 IXmlNamespaceResolver nsResolver;       // Manages "statically known namespaces" and "default element/type namespace"
 113                 string defaultFunctionNamespace; // default function namespace
 114                 XmlSchemaSet inScopeSchemas;    // in-scope schemas
 115                 IDictionary inScopeVariables;
 116                 Type contextItemStaticType;     // TODO: context item static type?
 117                 XQueryFunctionTable functions;
 118
 119                 // Statically known collations is not defined here. It is equal to all supported CultureInfo.
 120 //              IDictionary staticallyKnownCollations;
 121
 122                 CultureInfo defaultCollation; // or TextInfo ?
 123                 bool preserveConstructionSpace; // construction mode
 124                 bool defaultOrdered; // Ordering mode
 125                 bool preserveWhitespace; // Xml space policy
 126                 string baseUri;
 127 //              XmlResolver extDocResolver; // statically known documents
 128                 IDictionary knownCollections; // statically known collections
 129                 bool xqueryFlagger;
 130                 bool xqueryStaticFlagger;
 131
 132                 // Properties
 133
 134                 public XQueryCompileContext CompileContext {
 135                         get { return compileContext; }
 136                 }
 137
 138                 public XmlQueryDialect Compatibility {
 139                         get { return compat; }
 140                 }
 141
 142                 public ExprSequence QueryBody {
 143                         get { return queryBody; }
 144                 }
 145
 146                 public XmlNameTable NameTable {
 147                         get { return nameTable; }
 148                 }
 149
 150                 public Evidence Evidence {
 151                         get { return evidence; }
 152                 }
 153
 154                 public CultureInfo DefaultCollation {
 155                         get { return defaultCollation; }
 156                 }
 157
 158                 public XmlSchemaSet InScopeSchemas {
 159                         get { return inScopeSchemas; }
 160                 }
 161
 162                 // in-scope functions.
 163                 public XQueryFunctionTable InScopeFunctions {
 164                         get { return functions; }
 165                 }
 166
 167                 // in-scope variables. XmlQualifiedName to XPathItem
 168                 public IDictionary InScopeVariables {
 169                         get { return inScopeVariables; }
 170                 }
 171
 172                 public bool PreserveWhitespace {
 173                         get { return preserveWhitespace; }
 174                 }
 175
 176                 public bool PreserveConstructionSpace {
 177                         get { return preserveConstructionSpace; }
 178                 }
 179
 180                 public bool DefaultOrdered {
 181                         get { return defaultOrdered; }
 182                 }
 183
 184                 // statically known collections. string to ICollection (or XPathItemIterator, or XPathNodeIterator).
 185                 public IDictionary KnownCollections {
 186                         get { return knownCollections; }
 187                 }
 188
 189                 public bool XQueryFlagger {
 190                         get { return xqueryFlagger; }
 191                 }
 192
 193                 public bool XQueryStaticFlagger {
 194                         get { return xqueryStaticFlagger; }
 195                 }
 196
 197                 public string BaseUri {
 198                         get { return baseUri; }
 199                 }
 200
 201                 public IXmlNamespaceResolver NSResolver {
 202                         get { return nsResolver; }
 203                 }
 204
 205                 public string DefaultFunctionNamespace {
 206                         get { return defaultFunctionNamespace; }
 207                         set { defaultFunctionNamespace = value; }
 208                 }
 209
 210                 // FIXME: consider those from imported modules
 211                 public XQueryFunction ResolveFunction (XmlQualifiedName name)
 212                 {
 213                         XQueryFunction f = functions [name];
 214                         if (f != null)
 215                                 return f;
 216                         return null;
 217                 }
 218
 219                 // FIXME: wait for W3C clarification.
 220                 internal CultureInfo GetCulture (string collation)
 221                 {
 222                         return null;
 223                 }
 224
 225                 internal void OnMessageEvent (object sender, QueryEventArgs e)
 226                 {
 227                         commandImpl.ProcessMessageEvent (sender, e);
 228                 }
 229         }
 230 }
 231 #endif