272 lines
11 KiB
C#
272 lines
11 KiB
C#
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//------------------------------------------------------------------------------
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// <copyright file="TemplateControlCodeDomTreeGenerator.cs" company="Microsoft">
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// Copyright (c) Microsoft Corporation. All rights reserved.
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// </copyright>
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//------------------------------------------------------------------------------
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namespace System.Web.Compilation {
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using System;
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using System.Collections;
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using System.Reflection;
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using System.ComponentModel;
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using System.CodeDom;
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using System.CodeDom.Compiler;
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using System.Globalization;
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using System.Web.UI;
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using System.Web.Util;
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using Debug=System.Web.Util.Debug;
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internal abstract class TemplateControlCodeDomTreeGenerator : BaseTemplateCodeDomTreeGenerator {
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private const string stringResourcePointerName = "__stringResource";
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private TemplateControlParser _tcParser;
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private TemplateControlParser Parser { get { return _tcParser; } }
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private const string literalMemoryBlockName = "__literals";
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// This is used to detect incorrect base class in code beside scenarios. See usage for details.
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internal const int badBaseClassLineMarker = 912304;
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internal TemplateControlCodeDomTreeGenerator(TemplateControlParser tcParser) : base(tcParser) {
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_tcParser = tcParser;
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}
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/*
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* Build the default constructor
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*/
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protected override void BuildInitStatements(CodeStatementCollection trueStatements, CodeStatementCollection topLevelStatements) {
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base.BuildInitStatements(trueStatements, topLevelStatements);
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if (_stringResourceBuilder.HasStrings) {
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// e.g. private static object __stringResource;
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CodeMemberField stringResourcePointer = new CodeMemberField(typeof(Object), stringResourcePointerName);
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stringResourcePointer.Attributes |= MemberAttributes.Static;
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_sourceDataClass.Members.Add(stringResourcePointer);
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// e.g. __stringResource = TemplateControl.ReadStringResource(typeof(__GeneratedType));
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CodeAssignStatement readResource = new CodeAssignStatement();
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readResource.Left = new CodeFieldReferenceExpression(_classTypeExpr,
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stringResourcePointerName);
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CodeMethodInvokeExpression methCallExpression = new CodeMethodInvokeExpression();
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methCallExpression.Method.TargetObject = new CodeThisReferenceExpression();
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methCallExpression.Method.MethodName = "ReadStringResource";
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readResource.Right = methCallExpression;
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trueStatements.Add(readResource);
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}
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//
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// Set the AppRelativeVirtualPath
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// e.g. ((System.Web.UI.Page)(this)).AppRelativeVirtualPath = "~/foo.aspx";
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// Note that we generate an artificial cast to cause a compile error if the base class
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// is incorrect (see below).
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//
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// Make sure the BuildAppRelativeVirtualPathProperty property is app independent, since
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// in precompilation scenarios, we can't make an assumption on the app name.
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// Use global:: to resolve types to avoid naming conflicts when user uses a class name
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// in the global namespace that already exists, such as Login or ReportViewer (DevDiv 79336)
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CodeTypeReference classTypeRef = CodeDomUtility.BuildGlobalCodeTypeReference(Parser.BaseType);
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CodeAssignStatement setProp = new CodeAssignStatement(
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new CodePropertyReferenceExpression(new CodeCastExpression(classTypeRef, new CodeThisReferenceExpression()), "AppRelativeVirtualPath"),
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new CodePrimitiveExpression(Parser.CurrentVirtualPath.AppRelativeVirtualPathString));
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// This line will fail to compile if the base class in the code beside is missing. Set
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// a special line number on it to improve error handling (VSWhidbey 376977/468830)
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if (!_designerMode && Parser.CodeFileVirtualPath != null) {
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setProp.LinePragma = CreateCodeLinePragmaHelper(
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Parser.CodeFileVirtualPath.VirtualPathString, badBaseClassLineMarker);
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}
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topLevelStatements.Add(setProp);
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}
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/*
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* Build various properties, fields, methods
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*/
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protected override void BuildMiscClassMembers() {
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base.BuildMiscClassMembers();
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// Build the automatic event hookup code
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if (!_designerMode)
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BuildAutomaticEventHookup();
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// Build the ApplicationInstance property
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BuildApplicationInstanceProperty();
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if (_designerMode) {
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GenerateDummyBindMethodsAtDesignTime();
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}
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BuildSourceDataTreeFromBuilder(Parser.RootBuilder,
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false /*fInTemplate*/, false /*topLevelTemplate*/, null /*pse*/);
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if (!_designerMode)
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BuildFrameworkInitializeMethod();
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}
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/*
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* Build the strongly typed new property
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*/
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// e.g. public new {propertyType} Master { get { return ({propertyType})base.Master; } }
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internal void BuildStronglyTypedProperty(string propertyName, Type propertyType) {
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// VSWhidbey 321818.
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// overriding method with same name is not allowed using J#.
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if (_usingVJSCompiler) {
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return;
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}
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CodeMemberProperty prop = new CodeMemberProperty();
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prop.Attributes &= ~MemberAttributes.AccessMask;
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prop.Attributes &= ~MemberAttributes.ScopeMask;
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prop.Attributes |= MemberAttributes.Final | MemberAttributes.New | MemberAttributes.Public;
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prop.Name = propertyName;
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prop.Type = new CodeTypeReference(propertyType);
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CodePropertyReferenceExpression propRef = new CodePropertyReferenceExpression(
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new CodeBaseReferenceExpression(), propertyName);
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prop.GetStatements.Add(new CodeMethodReturnStatement(new CodeCastExpression(propertyType, propRef)));
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_intermediateClass.Members.Add(prop);
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}
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private void GenerateDummyBindMethodsAtDesignTime() {
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// public string Bind(string expression,string format) {return String.Empty;}
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GenerateBindMethod(addFormatParameter: true);
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// public string Bind(string expression) {return String.Empty;}
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GenerateBindMethod(addFormatParameter: false);
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}
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private void GenerateBindMethod(bool addFormatParameter) {
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if (_sourceDataClass == null) {
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return;
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}
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CodeMemberMethod bindMethod = new CodeMemberMethod();
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bindMethod.Name = "Bind";
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bindMethod.Parameters.Add(new CodeParameterDeclarationExpression(typeof(string), "expression"));
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if (addFormatParameter) {
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bindMethod.Parameters.Add(new CodeParameterDeclarationExpression(typeof(string), "format"));
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}
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bindMethod.ReturnType = new CodeTypeReference(typeof(string));
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bindMethod.Statements.Add(new CodeMethodReturnStatement(new CodePrimitiveExpression(String.Empty)));
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_sourceDataClass.Members.Add(bindMethod);
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}
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/*
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* Build the data tree for the FrameworkInitialize method
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*/
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private void BuildFrameworkInitializeMethod() {
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// Skip if we're only generating the intermediate class
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if (_sourceDataClass == null)
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return;
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CodeMemberMethod method = new CodeMemberMethod();
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AddDebuggerNonUserCodeAttribute(method);
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method.Attributes &= ~MemberAttributes.AccessMask;
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method.Attributes &= ~MemberAttributes.ScopeMask;
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method.Attributes |= MemberAttributes.Override | MemberAttributes.Family;
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method.Name = "FrameworkInitialize";
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BuildFrameworkInitializeMethodContents(method);
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// This line will fail to compile if the base class in the code beside is incorrect. Set
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// a special line number on it to improve error handling (VSWhidbey 376977/468830)
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if (!_designerMode && Parser.CodeFileVirtualPath != null) {
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method.LinePragma = CreateCodeLinePragmaHelper(
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Parser.CodeFileVirtualPath.VirtualPathString, badBaseClassLineMarker);
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}
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_sourceDataClass.Members.Add(method);
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}
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/*
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* Build the contents of the FrameworkInitialize method
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*/
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protected virtual void BuildFrameworkInitializeMethodContents(CodeMemberMethod method) {
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// Call the base FrameworkInitialize
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CodeMethodInvokeExpression baseCallExpression = new CodeMethodInvokeExpression(
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new CodeBaseReferenceExpression(), method.Name);
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method.Statements.Add(new CodeExpressionStatement(baseCallExpression));
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// No strings: don't do anything
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if (_stringResourceBuilder.HasStrings) {
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// e.g. SetStringResourcePointer(__stringResource, 0);
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CodeMethodInvokeExpression methCallExpression = new CodeMethodInvokeExpression(
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new CodeThisReferenceExpression(), "SetStringResourcePointer");
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methCallExpression.Parameters.Add(new CodeFieldReferenceExpression(
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_classTypeExpr, stringResourcePointerName));
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// Pass 0 for the maxResourceOffset, since it's being ignored
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methCallExpression.Parameters.Add(new CodePrimitiveExpression(0));
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method.Statements.Add(new CodeExpressionStatement(methCallExpression));
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}
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CodeMethodInvokeExpression call = new CodeMethodInvokeExpression();
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call.Method.TargetObject = new CodeThisReferenceExpression();
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call.Method.MethodName = "__BuildControlTree";
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call.Parameters.Add(new CodeThisReferenceExpression());
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method.Statements.Add(new CodeExpressionStatement(call));
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}
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/*
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* Build the automatic event hookup code
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*/
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private void BuildAutomaticEventHookup() {
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// Skip if we're only generating the intermediate class
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if (_sourceDataClass == null)
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return;
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CodeMemberProperty prop;
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// If FAutoEventWireup is turned off, generate a SupportAutoEvents prop that
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// returns false.
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if (!Parser.FAutoEventWireup) {
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prop = new CodeMemberProperty();
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prop.Attributes &= ~MemberAttributes.AccessMask;
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prop.Attributes &= ~MemberAttributes.ScopeMask;
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prop.Attributes |= MemberAttributes.Override | MemberAttributes.Family;
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prop.Name = "SupportAutoEvents";
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prop.Type = new CodeTypeReference(typeof(bool));
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prop.GetStatements.Add(new CodeMethodReturnStatement(new CodePrimitiveExpression(false)));
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_sourceDataClass.Members.Add(prop);
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return;
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}
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}
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/*
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* Build the ApplicationInstance property
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*/
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private void BuildApplicationInstanceProperty() {
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CodeMemberProperty prop;
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Type appType = BuildManager.GetGlobalAsaxType();
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prop = new CodeMemberProperty();
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prop.Attributes &= ~MemberAttributes.AccessMask;
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prop.Attributes &= ~MemberAttributes.ScopeMask;
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prop.Attributes |= MemberAttributes.Final | MemberAttributes.Family;
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if (_designerMode) {
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ApplyEditorBrowsableCustomAttribute(prop);
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}
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prop.Name = "ApplicationInstance";
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prop.Type = new CodeTypeReference(appType);
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CodePropertyReferenceExpression propRef = new CodePropertyReferenceExpression(
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new CodeThisReferenceExpression(), "Context");
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propRef = new CodePropertyReferenceExpression(propRef, "ApplicationInstance");
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prop.GetStatements.Add(new CodeMethodReturnStatement(new CodeCastExpression(
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appType, propRef)));
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_intermediateClass.Members.Add(prop);
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}
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}
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}
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