Code:
/ FXUpdate3074 / FXUpdate3074 / 1.1 / DEVDIV / depot / DevDiv / releases / whidbey / QFE / ndp / fx / src / xsp / System / Web / Compilation / ObjectFactoryCodeDomTreeGenerator.cs / 1 / ObjectFactoryCodeDomTreeGenerator.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- // This code is used to optimize the instantiation of generated types. namespace System.Web.Compilation { using System; using System.Collections; using System.Reflection; using System.Security.Permissions; using System.Globalization; using System.CodeDom; using System.CodeDom.Compiler; using System.Web.Util; using Util = System.Web.UI.Util; internal delegate object InstantiateObject(); internal class ObjectFactoryCodeDomTreeGenerator { private CodeCompileUnit _codeCompileUnit; private CodeTypeDeclaration _factoryClass; private const string factoryClassNameBase = "FastObjectFactory_"; private const string factoryFullClassNameBase = BaseCodeDomTreeGenerator.internalAspNamespace + "." + factoryClassNameBase; internal ObjectFactoryCodeDomTreeGenerator(string outputAssemblyName) { _codeCompileUnit = new CodeCompileUnit(); CodeNamespace sourceDataNamespace = new CodeNamespace( BaseCodeDomTreeGenerator.internalAspNamespace); _codeCompileUnit.Namespaces.Add(sourceDataNamespace); // Make the class name vary based on the assembly ( string factoryClassName = factoryClassNameBase + Util.MakeValidTypeNameFromString(outputAssemblyName).ToLower(CultureInfo.InvariantCulture); // Create a single class, in which a method will be added for each // type that needs to be fast created in this assembly _factoryClass = new CodeTypeDeclaration(factoryClassName); // Make the class internal ( _factoryClass.TypeAttributes &= ~TypeAttributes.Public; // We generate a dummy line pragma, just so it will end with a '#line hidden' // and prevent the following generated code from ever being treated as user // code. We need to use this hack because CodeDOM doesn't allow simply generating // a '#line hidden'. ( CodeSnippetTypeMember dummySnippet = new CodeSnippetTypeMember(String.Empty); #if !PLATFORM_UNIX /// Unix file system // CORIOLISTODO: Unix file system dummySnippet.LinePragma = new CodeLinePragma(@"c:\\dummy.txt", 1); #else // !PLATFORM_UNIX dummySnippet.LinePragma = new CodeLinePragma(@"/dummy.txt", 1); #endif // !PLATFORM_UNIX _factoryClass.Members.Add(dummySnippet); // Add a private default ctor to make the class non-instantiatable ( CodeConstructor ctor = new CodeConstructor(); ctor.Attributes |= MemberAttributes.Private; _factoryClass.Members.Add(ctor); sourceDataNamespace.Types.Add(_factoryClass); } internal void AddFactoryMethod(string typeToCreate) { // Generate a simple factory method for this type. e.g. // static object Create_Acme_Foo() { // return new ASP.foo_aspx(); // } CodeMemberMethod method = new CodeMemberMethod(); method.Name = GetCreateMethodNameForType(typeToCreate); method.ReturnType = new CodeTypeReference(typeof(object)); method.Attributes = MemberAttributes.Static; CodeMethodReturnStatement cmrs = new CodeMethodReturnStatement( new CodeObjectCreateExpression(typeToCreate)); method.Statements.Add(cmrs); _factoryClass.Members.Add(method); } private static string GetCreateMethodNameForType(string typeToCreate) { return "Create_" + Util.MakeValidTypeNameFromString(typeToCreate); } internal CodeCompileUnit CodeCompileUnit { get { return _codeCompileUnit; } } // Get the factory delegate for this type // Could be called with user code on the stack, so need to assertt here // e.g. This can happen during a Server.Transfer, or a LoadControl. [ReflectionPermission(SecurityAction.Assert, Flags = ReflectionPermissionFlag.MemberAccess)] internal static InstantiateObject GetFastObjectCreationDelegate(Type t) { // Look for the factory class in the same assembly Assembly a = t.Assembly; string shortAssemblyName = Util.GetAssemblyShortName(t.Assembly); shortAssemblyName = shortAssemblyName.ToLower(CultureInfo.InvariantCulture); Type factoryType = a.GetType(factoryFullClassNameBase + Util.MakeValidTypeNameFromString(shortAssemblyName)); if (factoryType == null) return null; string methodName = GetCreateMethodNameForType(t.FullName); try { return (InstantiateObject) Delegate.CreateDelegate( typeof(InstantiateObject), factoryType, methodName); } catch { return null; } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved. //------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- // This code is used to optimize the instantiation of generated types. namespace System.Web.Compilation { using System; using System.Collections; using System.Reflection; using System.Security.Permissions; using System.Globalization; using System.CodeDom; using System.CodeDom.Compiler; using System.Web.Util; using Util = System.Web.UI.Util; internal delegate object InstantiateObject(); internal class ObjectFactoryCodeDomTreeGenerator { private CodeCompileUnit _codeCompileUnit; private CodeTypeDeclaration _factoryClass; private const string factoryClassNameBase = "FastObjectFactory_"; private const string factoryFullClassNameBase = BaseCodeDomTreeGenerator.internalAspNamespace + "." + factoryClassNameBase; internal ObjectFactoryCodeDomTreeGenerator(string outputAssemblyName) { _codeCompileUnit = new CodeCompileUnit(); CodeNamespace sourceDataNamespace = new CodeNamespace( BaseCodeDomTreeGenerator.internalAspNamespace); _codeCompileUnit.Namespaces.Add(sourceDataNamespace); // Make the class name vary based on the assembly ( string factoryClassName = factoryClassNameBase + Util.MakeValidTypeNameFromString(outputAssemblyName).ToLower(CultureInfo.InvariantCulture); // Create a single class, in which a method will be added for each // type that needs to be fast created in this assembly _factoryClass = new CodeTypeDeclaration(factoryClassName); // Make the class internal ( _factoryClass.TypeAttributes &= ~TypeAttributes.Public; // We generate a dummy line pragma, just so it will end with a '#line hidden' // and prevent the following generated code from ever being treated as user // code. We need to use this hack because CodeDOM doesn't allow simply generating // a '#line hidden'. ( CodeSnippetTypeMember dummySnippet = new CodeSnippetTypeMember(String.Empty); #if !PLATFORM_UNIX /// Unix file system // CORIOLISTODO: Unix file system dummySnippet.LinePragma = new CodeLinePragma(@"c:\\dummy.txt", 1); #else // !PLATFORM_UNIX dummySnippet.LinePragma = new CodeLinePragma(@"/dummy.txt", 1); #endif // !PLATFORM_UNIX _factoryClass.Members.Add(dummySnippet); // Add a private default ctor to make the class non-instantiatable ( CodeConstructor ctor = new CodeConstructor(); ctor.Attributes |= MemberAttributes.Private; _factoryClass.Members.Add(ctor); sourceDataNamespace.Types.Add(_factoryClass); } internal void AddFactoryMethod(string typeToCreate) { // Generate a simple factory method for this type. e.g. // static object Create_Acme_Foo() { // return new ASP.foo_aspx(); // } CodeMemberMethod method = new CodeMemberMethod(); method.Name = GetCreateMethodNameForType(typeToCreate); method.ReturnType = new CodeTypeReference(typeof(object)); method.Attributes = MemberAttributes.Static; CodeMethodReturnStatement cmrs = new CodeMethodReturnStatement( new CodeObjectCreateExpression(typeToCreate)); method.Statements.Add(cmrs); _factoryClass.Members.Add(method); } private static string GetCreateMethodNameForType(string typeToCreate) { return "Create_" + Util.MakeValidTypeNameFromString(typeToCreate); } internal CodeCompileUnit CodeCompileUnit { get { return _codeCompileUnit; } } // Get the factory delegate for this type // Could be called with user code on the stack, so need to assertt here // e.g. This can happen during a Server.Transfer, or a LoadControl. [ReflectionPermission(SecurityAction.Assert, Flags = ReflectionPermissionFlag.MemberAccess)] internal static InstantiateObject GetFastObjectCreationDelegate(Type t) { // Look for the factory class in the same assembly Assembly a = t.Assembly; string shortAssemblyName = Util.GetAssemblyShortName(t.Assembly); shortAssemblyName = shortAssemblyName.ToLower(CultureInfo.InvariantCulture); Type factoryType = a.GetType(factoryFullClassNameBase + Util.MakeValidTypeNameFromString(shortAssemblyName)); if (factoryType == null) return null; string methodName = GetCreateMethodNameForType(t.FullName); try { return (InstantiateObject) Delegate.CreateDelegate( typeof(InstantiateObject), factoryType, methodName); } catch { return null; } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- EventManager.cs
- IOThreadTimer.cs
- DataDocumentXPathNavigator.cs
- ClassHandlersStore.cs
- ProfileProvider.cs
- CodeMemberProperty.cs
- Int32AnimationBase.cs
- AuthorizationRule.cs
- ObjectDataSourceDisposingEventArgs.cs
- SeverityFilter.cs
- EventLogPermissionEntry.cs
- MasterPageCodeDomTreeGenerator.cs
- DataGridViewComboBoxCell.cs
- Currency.cs
- IssuedTokenParametersEndpointAddressElement.cs
- QilXmlReader.cs
- FixUp.cs
- QueryReaderSettings.cs
- TransformerInfo.cs
- DropShadowBitmapEffect.cs
- SkipStoryboardToFill.cs
- Screen.cs
- DataGridViewCellLinkedList.cs
- SourceChangedEventArgs.cs
- StoryFragments.cs
- ChangeTracker.cs
- PrimitiveSchema.cs
- NativeMethods.cs
- ManifestSignedXml.cs
- Utils.cs
- DesignerDataRelationship.cs
- PackUriHelper.cs
- PrintPreviewControl.cs
- DiscardableAttribute.cs
- XmlWriterSettings.cs
- StrokeNodeData.cs
- MsmqIntegrationBindingElement.cs
- ScrollChrome.cs
- ValidatingPropertiesEventArgs.cs
- DataGridViewMethods.cs
- FacetDescription.cs
- NamedPipeTransportSecurityElement.cs
- TimeSpanValidatorAttribute.cs
- InfiniteTimeSpanConverter.cs
- TraceUtils.cs
- TypedTableBase.cs
- ZipIOLocalFileHeader.cs
- XmlStreamStore.cs
- DbConnectionPoolCounters.cs
- Range.cs
- CssStyleCollection.cs
- METAHEADER.cs
- ProviderSettings.cs
- ImageSourceConverter.cs
- RunClient.cs
- XamlSerializerUtil.cs
- SelectionEditor.cs
- InertiaExpansionBehavior.cs
- Condition.cs
- SafeNativeMemoryHandle.cs
- PropertyGroupDescription.cs
- ModulesEntry.cs
- RbTree.cs
- ToolStripDesignerAvailabilityAttribute.cs
- ThousandthOfEmRealDoubles.cs
- FreezableCollection.cs
- OdbcParameterCollection.cs
- DataGridRowAutomationPeer.cs
- WebPartTransformerAttribute.cs
- FrameworkReadOnlyPropertyMetadata.cs
- NetworkInformationException.cs
- SQlBooleanStorage.cs
- FixedSOMLineCollection.cs
- DelegatingConfigHost.cs
- BoolExpr.cs
- ImageMetadata.cs
- UserPrincipalNameElement.cs
- RowVisual.cs
- DataReaderContainer.cs
- Vector3DCollectionConverter.cs
- COMException.cs
- XmlReader.cs
- DBParameter.cs
- CharacterBuffer.cs
- Region.cs
- ContainerUtilities.cs
- Stream.cs
- ScrollChangedEventArgs.cs
- BuilderElements.cs
- SendActivityEventArgs.cs
- TextElement.cs
- TextClipboardData.cs
- ParameterReplacerVisitor.cs
- MarshalDirectiveException.cs
- HtmlInputText.cs
- GlyphRunDrawing.cs
- ServerIdentity.cs
- SecureEnvironment.cs
- MessageDesigner.cs
- CustomAttributeFormatException.cs