2 // System.Web.Compilation.TemplateControlCompiler
5 // Gonzalo Paniagua Javier (gonzalo@ximian.com)
6 // Marek Habersack (mhabersack@novell.com)
8 // (C) 2003 Ximian, Inc (http://www.ximian.com)
9 // (C) 2004-2008 Novell, Inc (http://novell.com)
12 // Permission is hereby granted, free of charge, to any person obtaining
13 // a copy of this software and associated documentation files (the
14 // "Software"), to deal in the Software without restriction, including
15 // without limitation the rights to use, copy, modify, merge, publish,
16 // distribute, sublicense, and/or sell copies of the Software, and to
17 // permit persons to whom the Software is furnished to do so, subject to
18 // the following conditions:
20 // The above copyright notice and this permission notice shall be
21 // included in all copies or substantial portions of the Software.
23 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
27 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
28 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
29 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
33 using System.Collections;
34 using System.ComponentModel;
36 using System.Globalization;
37 using System.Reflection;
41 using System.Web.UI.WebControls;
42 using System.Web.Util;
43 using System.ComponentModel.Design.Serialization;
44 using System.Text.RegularExpressions;
46 using System.Configuration;
47 using System.Collections.Specialized;
48 using System.Collections.Generic;
49 using System.Web.Configuration;
50 using System.Resources;
53 namespace System.Web.Compilation
55 class TemplateControlCompiler : BaseCompiler
57 static BindingFlags noCaseFlags = BindingFlags.Public | BindingFlags.NonPublic |
58 BindingFlags.Instance | BindingFlags.IgnoreCase;
59 static Type monoTypeType = Type.GetType ("System.MonoType");
61 TemplateControlParser parser;
63 internal ILocation currentLocation;
65 static TypeConverter colorConverter;
67 internal static CodeVariableReferenceExpression ctrlVar = new CodeVariableReferenceExpression ("__ctrl");
70 List <string> masterPageContentPlaceHolders;
71 static Regex startsWithBindRegex = new Regex (@"^Bind\s*\(", RegexOptions.Compiled | RegexOptions.IgnoreCase);
72 // When modifying those, make sure to look at the SanitizeBindCall to make sure it
73 // picks up correct groups.
74 static Regex bindRegex = new Regex (@"Bind\s*\(\s*[""']+(.*?)[""']+((\s*,\s*[""']+(.*?)[""']+)?)\s*\)\s*%>", RegexOptions.Compiled | RegexOptions.IgnoreCase);
75 static Regex bindRegexInValue = new Regex (@"Bind\s*\(\s*[""']+(.*?)[""']+((\s*,\s*[""']+(.*?)[""']+)?)\s*\)\s*$", RegexOptions.Compiled | RegexOptions.IgnoreCase);
77 static Regex evalRegexInValue = new Regex (@"(.*)Eval\s*\(\s*[""']+(.*?)[""']+((\s*,\s*[""']+(.*?)[""']+)?)\s*\)(.*)", RegexOptions.Compiled | RegexOptions.IgnoreCase);
80 List <string> MasterPageContentPlaceHolders {
82 if (masterPageContentPlaceHolders == null)
83 masterPageContentPlaceHolders = new List <string> ();
84 return masterPageContentPlaceHolders;
88 public TemplateControlCompiler (TemplateControlParser parser)
94 protected void EnsureID (ControlBuilder builder)
96 if (builder.ID == null || builder.ID.Trim () == "")
97 builder.ID = builder.GetNextID (null);
100 void CreateField (ControlBuilder builder, bool check)
102 if (builder == null || builder.ID == null || builder.ControlType == null)
105 if (partialNameOverride [builder.ID] != null)
109 MemberAttributes ma = MemberAttributes.Family;
110 currentLocation = builder.Location;
111 if (check && CheckBaseFieldOrProperty (builder.ID, builder.ControlType, ref ma))
112 return; // The field or property already exists in a base class and is accesible.
114 CodeMemberField field;
115 field = new CodeMemberField (builder.ControlType.FullName, builder.ID);
116 field.Attributes = ma;
118 field.Type.Options |= CodeTypeReferenceOptions.GlobalReference;
120 if (partialClass != null)
121 partialClass.Members.Add (AddLinePragma (field, builder));
124 mainClass.Members.Add (AddLinePragma (field, builder));
127 bool CheckBaseFieldOrProperty (string id, Type type, ref MemberAttributes ma)
129 FieldInfo fld = parser.BaseType.GetField (id, noCaseFlags);
132 if (fld == null || fld.IsPrivate) {
133 PropertyInfo prop = parser.BaseType.GetProperty (id, noCaseFlags);
135 MethodInfo setm = prop.GetSetMethod (true);
137 other = prop.PropertyType;
140 other = fld.FieldType;
146 if (!other.IsAssignableFrom (type)) {
148 ma |= MemberAttributes.New;
151 string msg = String.Format ("The base class includes the field '{0}', but its " +
152 "type '{1}' is not compatible with {2}",
154 throw new ParseException (currentLocation, msg);
161 void AddParsedSubObjectStmt (ControlBuilder builder, CodeExpression expr)
163 if (!builder.HaveParserVariable) {
164 CodeVariableDeclarationStatement p = new CodeVariableDeclarationStatement();
166 p.Type = new CodeTypeReference (typeof (IParserAccessor));
167 p.InitExpression = new CodeCastExpression (typeof (IParserAccessor), ctrlVar);
168 builder.MethodStatements.Add (p);
169 builder.HaveParserVariable = true;
172 CodeVariableReferenceExpression var = new CodeVariableReferenceExpression ("__parser");
173 CodeMethodInvokeExpression invoke = new CodeMethodInvokeExpression (var, "AddParsedSubObject");
174 invoke.Parameters.Add (expr);
175 builder.MethodStatements.Add (AddLinePragma (invoke, builder));
178 void InitMethod (ControlBuilder builder, bool isTemplate, bool childrenAsProperties)
180 currentLocation = builder.Location;
182 string tailname = ((builder is RootBuilder) ? "Tree" : ("_" + builder.ID));
183 CodeMemberMethod method = new CodeMemberMethod ();
184 builder.Method = method;
185 builder.MethodStatements = method.Statements;
187 method.Name = "__BuildControl" + tailname;
188 method.Attributes = MemberAttributes.Private | MemberAttributes.Final;
189 Type type = builder.ControlType;
191 /* in the case this is the __BuildControlTree
192 * method, allow subclasses to insert control
194 if (builder is RootBuilder) {
196 SetCustomAttributes (method);
198 AddStatementsToInitMethod (method);
201 if (builder.HasAspCode) {
202 CodeMemberMethod renderMethod = new CodeMemberMethod ();
203 builder.RenderMethod = renderMethod;
204 renderMethod.Name = "__Render" + tailname;
205 renderMethod.Attributes = MemberAttributes.Private | MemberAttributes.Final;
206 CodeParameterDeclarationExpression arg1 = new CodeParameterDeclarationExpression ();
207 arg1.Type = new CodeTypeReference (typeof (HtmlTextWriter));
208 arg1.Name = "__output";
209 CodeParameterDeclarationExpression arg2 = new CodeParameterDeclarationExpression ();
210 arg2.Type = new CodeTypeReference (typeof (Control));
211 arg2.Name = "parameterContainer";
212 renderMethod.Parameters.Add (arg1);
213 renderMethod.Parameters.Add (arg2);
214 mainClass.Members.Add (renderMethod);
217 if (childrenAsProperties || builder.ControlType == null) {
219 if (builder is RootBuilder)
220 typeString = parser.ClassName;
222 if (builder.ControlType != null && builder.IsProperty &&
223 !typeof (ITemplate).IsAssignableFrom (builder.ControlType))
224 typeString = builder.ControlType.FullName;
226 typeString = "System.Web.UI.Control";
227 ProcessTemplateChildren (builder);
230 method.Parameters.Add (new CodeParameterDeclarationExpression (typeString, "__ctrl"));
233 if (typeof (Control).IsAssignableFrom (type))
234 method.ReturnType = new CodeTypeReference (typeof (Control));
236 // _ctrl = new $controlType ($parameters);
238 CodeObjectCreateExpression newExpr = new CodeObjectCreateExpression (type);
240 object [] atts = type.GetCustomAttributes (typeof (ConstructorNeedsTagAttribute), true);
241 if (atts != null && atts.Length > 0) {
242 ConstructorNeedsTagAttribute att = (ConstructorNeedsTagAttribute) atts [0];
244 newExpr.Parameters.Add (new CodePrimitiveExpression (builder.TagName));
245 } else if (builder is DataBindingBuilder) {
246 newExpr.Parameters.Add (new CodePrimitiveExpression (0));
247 newExpr.Parameters.Add (new CodePrimitiveExpression (1));
250 method.Statements.Add (new CodeVariableDeclarationStatement (builder.ControlType, "__ctrl"));
251 CodeAssignStatement assign = new CodeAssignStatement ();
252 assign.Left = ctrlVar;
253 assign.Right = newExpr;
254 method.Statements.Add (AddLinePragma (assign, builder));
256 // this.$builderID = _ctrl;
258 CodeFieldReferenceExpression builderID = new CodeFieldReferenceExpression ();
259 builderID.TargetObject = thisRef;
260 builderID.FieldName = builder.ID;
261 assign = new CodeAssignStatement ();
262 assign.Left = builderID;
263 assign.Right = ctrlVar;
264 method.Statements.Add (AddLinePragma (assign, builder));
266 if (typeof (UserControl).IsAssignableFrom (type)) {
267 CodeMethodReferenceExpression mref = new CodeMethodReferenceExpression ();
268 mref.TargetObject = builderID;
269 mref.MethodName = "InitializeAsUserControl";
270 CodeMethodInvokeExpression initAsControl = new CodeMethodInvokeExpression (mref);
271 initAsControl.Parameters.Add (new CodePropertyReferenceExpression (thisRef, "Page"));
272 method.Statements.Add (initAsControl);
276 if (builder.ParentTemplateBuilder is System.Web.UI.WebControls.ContentBuilderInternal) {
280 pi = type.GetProperty ("TemplateControl");
281 } catch (Exception) {
285 if (pi != null && pi.CanWrite) {
286 // __ctrl.TemplateControl = this;
287 assign = new CodeAssignStatement ();
288 assign.Left = new CodePropertyReferenceExpression (ctrlVar, "TemplateControl");;
289 assign.Right = thisRef;
290 method.Statements.Add (assign);
294 // _ctrl.SkinID = $value
295 // _ctrl.ApplyStyleSheetSkin (this);
297 // the SkinID assignment needs to come
298 // before the call to
299 // ApplyStyleSheetSkin, for obvious
300 // reasons. We skip SkinID in
301 // CreateAssignStatementsFromAttributes
304 string skinid = builder.GetAttribute ("skinid");
305 if (!String.IsNullOrEmpty (skinid))
306 CreateAssignStatementFromAttribute (builder, "skinid");
308 if (typeof (WebControl).IsAssignableFrom (type)) {
309 CodeMethodInvokeExpression applyStyleSheetSkin = new CodeMethodInvokeExpression (ctrlVar, "ApplyStyleSheetSkin");
310 if (typeof (Page).IsAssignableFrom (parser.BaseType))
311 applyStyleSheetSkin.Parameters.Add (thisRef);
313 applyStyleSheetSkin.Parameters.Add (new CodePropertyReferenceExpression (thisRef, "Page"));
314 method.Statements.Add (applyStyleSheetSkin);
318 // Process template children before anything else
319 ProcessTemplateChildren (builder);
321 // process ID here. It should be set before any other attributes are
322 // assigned, since the control code may rely on ID being set. We
323 // skip ID in CreateAssignStatementsFromAttributes
324 string ctl_id = builder.GetAttribute ("id");
325 if (ctl_id != null && ctl_id.Length != 0)
326 CreateAssignStatementFromAttribute (builder, "id");
330 if (typeof (ContentPlaceHolder).IsAssignableFrom (type)) {
331 List <string> placeHolderIds = MasterPageContentPlaceHolders;
332 string cphID = builder.ID;
334 if (!placeHolderIds.Contains (cphID))
335 placeHolderIds.Add (cphID);
337 CodeConditionStatement condStatement;
339 // Add the __Template_* field
340 string templateField = "__Template_" + cphID;
341 CodeMemberField fld = new CodeMemberField (typeof (ITemplate), templateField);
342 fld.Attributes = MemberAttributes.Private;
343 mainClass.Members.Add (fld);
345 CodeFieldReferenceExpression templateID = new CodeFieldReferenceExpression ();
346 templateID.TargetObject = thisRef;
347 templateID.FieldName = templateField;
349 CreateContentPlaceHolderTemplateProperty (templateField, "Template_" + cphID);
351 // if ((this.ContentTemplates != null)) {
352 // this.__Template_$builder.ID = ((System.Web.UI.ITemplate)(this.ContentTemplates["$builder.ID"]));
355 CodeFieldReferenceExpression contentTemplates = new CodeFieldReferenceExpression ();
356 contentTemplates.TargetObject = thisRef;
357 contentTemplates.FieldName = "ContentTemplates";
359 CodeIndexerExpression indexer = new CodeIndexerExpression ();
360 indexer.TargetObject = new CodePropertyReferenceExpression (thisRef, "ContentTemplates");
361 indexer.Indices.Add (new CodePrimitiveExpression (cphID));
363 assign = new CodeAssignStatement ();
364 assign.Left = templateID;
365 assign.Right = new CodeCastExpression (new CodeTypeReference (typeof (ITemplate)), indexer);
367 condStatement = new CodeConditionStatement (new CodeBinaryOperatorExpression (contentTemplates,
368 CodeBinaryOperatorType.IdentityInequality,
369 new CodePrimitiveExpression (null)),
372 method.Statements.Add (condStatement);
374 // if ((this.__Template_mainContent != null)) {
375 // this.__Template_mainContent.InstantiateIn(__ctrl);
377 // and also set things up such that any additional code ends up in:
382 CodeMethodReferenceExpression methodRef = new CodeMethodReferenceExpression ();
383 methodRef.TargetObject = templateID;
384 methodRef.MethodName = "InstantiateIn";
386 CodeMethodInvokeExpression instantiateInInvoke;
387 instantiateInInvoke = new CodeMethodInvokeExpression (methodRef, ctrlVar);
389 condStatement = new CodeConditionStatement (new CodeBinaryOperatorExpression (templateID,
390 CodeBinaryOperatorType.IdentityInequality,
391 new CodePrimitiveExpression (null)),
392 new CodeExpressionStatement (instantiateInInvoke));
393 method.Statements.Add (condStatement);
395 // this is the bit that causes the following stuff to end up in the else { }
396 builder.MethodStatements = condStatement.FalseStatements;
401 mainClass.Members.Add (method);
404 void ProcessTemplateChildren (ControlBuilder builder)
406 ArrayList templates = builder.TemplateChildren;
407 if (templates != null && templates.Count > 0) {
408 foreach (TemplateBuilder tb in templates) {
409 CreateControlTree (tb, true, false);
411 if (tb.BindingDirection == BindingDirection.TwoWay) {
412 string extractMethod = CreateExtractValuesMethod (tb);
413 AddBindableTemplateInvocation (builder, tb.TagName, tb.Method.Name, extractMethod);
416 AddTemplateInvocation (builder, tb.TagName, tb.Method.Name);
422 void SetCustomAttribute (CodeMemberMethod method, UnknownAttributeDescriptor uad)
424 CodeAssignStatement assign = new CodeAssignStatement ();
425 assign.Left = new CodePropertyReferenceExpression (
426 new CodeArgumentReferenceExpression("__ctrl"),
428 assign.Right = GetExpressionFromString (uad.Value.GetType (), uad.Value.ToString (), uad.Info);
430 method.Statements.Add (assign);
433 void SetCustomAttributes (CodeMemberMethod method)
435 Type baseType = parser.BaseType;
436 if (baseType == null)
439 List <UnknownAttributeDescriptor> attrs = parser.UnknownMainAttributes;
440 if (attrs == null || attrs.Count == 0)
443 foreach (UnknownAttributeDescriptor uad in attrs)
444 SetCustomAttribute (method, uad);
448 protected virtual void AddStatementsToInitMethod (CodeMemberMethod method)
452 void AddLiteralSubObject (ControlBuilder builder, string str)
454 if (!builder.HasAspCode) {
455 CodeObjectCreateExpression expr;
456 expr = new CodeObjectCreateExpression (typeof (LiteralControl), new CodePrimitiveExpression (str));
457 AddParsedSubObjectStmt (builder, expr);
459 CodeMethodReferenceExpression methodRef = new CodeMethodReferenceExpression ();
460 methodRef.TargetObject = new CodeArgumentReferenceExpression ("__output");
461 methodRef.MethodName = "Write";
463 CodeMethodInvokeExpression expr;
464 expr = new CodeMethodInvokeExpression (methodRef, new CodePrimitiveExpression (str));
465 builder.RenderMethod.Statements.Add (expr);
469 string TrimDB (string value, bool trimTail)
471 string str = value.Trim ();
472 int len = str.Length;
473 int idx = str.IndexOf ('#', 2) + 1;
479 return str.Substring (idx, len - idx).Trim ();
482 CodeExpression CreateEvalInvokeExpression (Regex regex, string value, bool isBind)
484 Match match = regex.Match (value);
485 if (!match.Success) {
488 throw new HttpParseException ("Bind invocation wasn't formatted properly.");
493 string sanitizedSnippet;
495 sanitizedSnippet = SanitizeBindCall (match);
497 sanitizedSnippet = value;
499 return new CodeSnippetExpression (sanitizedSnippet);
502 string SanitizeBindCall (Match match)
504 GroupCollection groups = match.Groups;
505 StringBuilder sb = new StringBuilder ("Eval(\"" + groups [1] + "\"");
506 Group second = groups [4];
507 if (second != null) {
508 string v = second.Value;
509 if (v != null && v.Length > 0)
510 sb.Append (",\"" + second + "\"");
514 return sb.ToString ();
517 string DataBoundProperty (ControlBuilder builder, Type type, string varName, string value)
519 value = TrimDB (value, true);
520 CodeMemberMethod method;
521 string dbMethodName = builder.Method.Name + "_DB_" + dataBoundAtts++;
522 CodeExpression valueExpression = null;
523 value = value.Trim ();
526 bool need_if = false;
527 if (startsWithBindRegex.Match (value).Success) {
528 valueExpression = CreateEvalInvokeExpression (bindRegexInValue, value, true);
529 if (valueExpression != null)
533 if (StrUtils.StartsWith (value, "Eval", true))
534 valueExpression = CreateEvalInvokeExpression (evalRegexInValue, value, false);
536 if (valueExpression == null)
537 valueExpression = new CodeSnippetExpression (value);
539 method = CreateDBMethod (builder, dbMethodName, GetContainerType (builder), builder.ControlType);
540 CodeVariableReferenceExpression targetExpr = new CodeVariableReferenceExpression ("target");
542 // This should be a CodePropertyReferenceExpression for properties... but it works anyway
543 CodeFieldReferenceExpression field = new CodeFieldReferenceExpression (targetExpr, varName);
546 if (type == typeof (string)) {
547 CodeMethodInvokeExpression tostring = new CodeMethodInvokeExpression ();
548 CodeTypeReferenceExpression conv = new CodeTypeReferenceExpression (typeof (Convert));
549 tostring.Method = new CodeMethodReferenceExpression (conv, "ToString");
550 tostring.Parameters.Add (valueExpression);
553 expr = new CodeCastExpression (type, valueExpression);
555 CodeAssignStatement assign = new CodeAssignStatement (field, expr);
558 CodeExpression page = new CodePropertyReferenceExpression (thisRef, "Page");
559 CodeExpression left = new CodeMethodInvokeExpression (page, "GetDataItem");
560 CodeBinaryOperatorExpression ce = new CodeBinaryOperatorExpression (left, CodeBinaryOperatorType.IdentityInequality, new CodePrimitiveExpression (null));
561 CodeConditionStatement ccs = new CodeConditionStatement (ce, assign);
562 method.Statements.Add (ccs);
566 method.Statements.Add (assign);
568 mainClass.Members.Add (method);
572 void AddCodeForPropertyOrField (ControlBuilder builder, Type type, string var_name, string att, MemberInfo member, bool isDataBound, bool isExpression)
574 CodeMemberMethod method = builder.Method;
575 bool isWritable = IsWritablePropertyOrField (member);
577 if (isDataBound && isWritable) {
578 string dbMethodName = DataBoundProperty (builder, type, var_name, att);
579 AddEventAssign (method, builder, "DataBinding", typeof (EventHandler), dbMethodName);
583 else if (isExpression && isWritable) {
584 AddExpressionAssign (method, builder, member, type, var_name, att);
589 CodeAssignStatement assign = new CodeAssignStatement ();
590 assign.Left = new CodePropertyReferenceExpression (ctrlVar, var_name);
591 currentLocation = builder.Location;
592 assign.Right = GetExpressionFromString (type, att, member);
594 method.Statements.Add (AddLinePragma (assign, builder));
597 bool IsDirective (string value, char directiveChar)
599 if (value == null || value == String.Empty)
602 value = value.Trim ();
603 if (!StrUtils.StartsWith (value, "<%") || !StrUtils.EndsWith (value, "%>"))
606 int dcIndex = value.IndexOf (directiveChar, 2);
614 while (dcIndex >= 2) {
615 if (!Char.IsWhiteSpace (value [dcIndex]))
623 bool IsDataBound (string value)
625 return IsDirective (value, '#');
629 bool IsExpression (string value)
631 return IsDirective (value, '$');
634 void RegisterBindingInfo (ControlBuilder builder, string propName, ref string value)
636 string str = TrimDB (value, false);
637 if (StrUtils.StartsWith (str, "Bind", true)) {
638 Match match = bindRegex.Match (str);
640 string bindingName = match.Groups [1].Value;
641 TemplateBuilder templateBuilder = builder.ParentTemplateBuilder;
643 if (templateBuilder == null)
644 throw new HttpException ("Bind expression not allowed in this context.");
646 if (templateBuilder.BindingDirection == BindingDirection.OneWay)
649 string id = builder.GetAttribute ("ID");
650 if (String.IsNullOrEmpty (id))
651 throw new HttpException ("Control of type '" + builder.ControlType + "' using two-way binding on property '" + propName + "' must have an ID.");
653 templateBuilder.RegisterBoundProperty (builder.ControlType, propName, id, bindingName);
660 static bool InvariantCompare (string a, string b)
662 return (0 == String.Compare (a, b, false, CultureInfo.InvariantCulture));
666 static bool InvariantCompareNoCase (string a, string b)
668 return (0 == String.Compare (a, b, true, CultureInfo.InvariantCulture));
671 static MemberInfo GetFieldOrProperty (Type type, string name)
673 MemberInfo member = null;
675 member = type.GetProperty (name, noCaseFlags & ~BindingFlags.NonPublic);
682 member = type.GetField (name, noCaseFlags & ~BindingFlags.NonPublic);
688 static bool IsWritablePropertyOrField (MemberInfo member)
690 PropertyInfo pi = member as PropertyInfo;
692 return pi.GetSetMethod (false) != null;
693 FieldInfo fi = member as FieldInfo;
695 return !fi.IsInitOnly;
696 throw new ArgumentException ("Argument must be of PropertyInfo or FieldInfo type", "member");
699 bool ProcessPropertiesAndFields (ControlBuilder builder, MemberInfo member, string id,
700 string attValue, string prefix)
702 int hyphen = id.IndexOf ('-');
703 bool isPropertyInfo = (member is PropertyInfo);
704 bool isDataBound = IsDataBound (attValue);
706 bool isExpression = !isDataBound && IsExpression (attValue);
708 bool isExpression = false;
711 if (isPropertyInfo) {
712 type = ((PropertyInfo) member).PropertyType;
714 type = ((FieldInfo) member).FieldType;
717 if (InvariantCompareNoCase (member.Name, id)) {
720 RegisterBindingInfo (builder, member.Name, ref attValue);
723 if (!IsWritablePropertyOrField (member))
726 AddCodeForPropertyOrField (builder, type, member.Name, attValue, member, isDataBound, isExpression);
733 string prop_field = id.Replace ('-', '.');
734 string [] parts = prop_field.Split (new char [] {'.'});
735 int length = parts.Length;
737 if (length < 2 || !InvariantCompareNoCase (member.Name, parts [0]))
741 MemberInfo sub_member = GetFieldOrProperty (type, parts [1]);
742 if (sub_member == null)
745 string new_prefix = prefix + member.Name + ".";
746 string new_id = id.Substring (hyphen + 1);
747 return ProcessPropertiesAndFields (builder, sub_member, new_id, attValue, new_prefix);
750 MemberInfo subpf = GetFieldOrProperty (type, parts [1]);
751 if (!(subpf is PropertyInfo))
754 PropertyInfo subprop = (PropertyInfo) subpf;
755 if (subprop.CanWrite == false)
758 bool is_bool = (subprop.PropertyType == typeof (bool));
759 if (!is_bool && attValue == null)
760 return false; // Font-Size -> Font-Size="" as html
762 string val = attValue;
763 if (attValue == null && is_bool)
764 val = "true"; // Font-Bold <=> Font-Bold="true"
767 RegisterBindingInfo (builder, prefix + member.Name + "." + subprop.Name, ref attValue);
769 AddCodeForPropertyOrField (builder, subprop.PropertyType,
770 prefix + member.Name + "." + subprop.Name,
771 val, subprop, isDataBound, isExpression);
777 CodeExpression CompileExpression (MemberInfo member, Type type, string value, bool useSetAttribute)
779 // First let's find the correct expression builder
780 value = value.Substring (3, value.Length - 5).Trim ();
781 int colon = value.IndexOf (':');
784 string prefix = value.Substring (0, colon).Trim ();
785 string expr = value.Substring (colon + 1).Trim ();
787 CompilationSection cs = (CompilationSection)WebConfigurationManager.GetWebApplicationSection ("system.web/compilation");
791 if (cs.ExpressionBuilders == null || cs.ExpressionBuilders.Count == 0)
794 System.Web.Configuration.ExpressionBuilder ceb = cs.ExpressionBuilders[prefix];
798 string builderType = ceb.Type;
802 t = HttpApplication.LoadType (builderType, true);
803 } catch (Exception e) {
804 throw new HttpException (String.Format ("Failed to load expression builder type `{0}'", builderType), e);
807 if (!typeof (System.Web.Compilation.ExpressionBuilder).IsAssignableFrom (t))
808 throw new HttpException (String.Format ("Type {0} is not descendant from System.Web.Compilation.ExpressionBuilder", builderType));
810 System.Web.Compilation.ExpressionBuilder eb = null;
812 ExpressionBuilderContext ctx;
815 eb = Activator.CreateInstance (t) as System.Web.Compilation.ExpressionBuilder;
816 ctx = new ExpressionBuilderContext (HttpContext.Current.Request.FilePath);
817 parsedData = eb.ParseExpression (expr, type, ctx);
818 } catch (Exception e) {
819 throw new HttpException (String.Format ("Failed to create an instance of type `{0}'", builderType), e);
822 BoundPropertyEntry bpe = CreateBoundPropertyEntry (member as PropertyInfo, prefix, expr, useSetAttribute);
823 return eb.GetCodeExpression (bpe, parsedData, ctx);
826 void AddExpressionAssign (CodeMemberMethod method, ControlBuilder builder, MemberInfo member, Type type, string name, string value)
828 CodeExpression expr = CompileExpression (member, type, value, false);
833 CodeAssignStatement assign = new CodeAssignStatement ();
834 assign.Left = new CodePropertyReferenceExpression (ctrlVar, name);
837 builder.Method.Statements.Add (AddLinePragma (assign, builder));
840 BoundPropertyEntry CreateBoundPropertyEntry (PropertyInfo pi, string prefix, string expr, bool useSetAttribute)
842 BoundPropertyEntry ret = new BoundPropertyEntry ();
843 ret.Expression = expr;
844 ret.ExpressionPrefix = prefix;
845 ret.Generated = false;
848 ret.PropertyInfo = pi;
849 ret.Type = pi.PropertyType;
851 ret.UseSetAttribute = useSetAttribute;
856 bool ResourceProviderHasObject (string key)
858 IResourceProvider rp = HttpContext.GetResourceProvider (key, true);
862 IResourceReader rr = rp.ResourceReader;
866 IDictionaryEnumerator ide = rr.GetEnumerator ();
871 while (ide.MoveNext ()) {
872 dictKey = ide.Key as string;
873 if (String.IsNullOrEmpty (dictKey))
875 if (String.Compare (key, dictKey, StringComparison.Ordinal) == 0)
882 void AssignPropertyFromResources (ControlBuilder builder, MemberInfo mi, string attvalue)
884 bool isProperty = mi.MemberType == MemberTypes.Property;
885 bool isField = !isProperty && (mi.MemberType == MemberTypes.Field);
887 if (!isProperty && !isField || !IsWritablePropertyOrField (mi))
890 object[] attrs = mi.GetCustomAttributes (typeof (LocalizableAttribute), true);
891 if (attrs == null || attrs.Length == 0 || !((LocalizableAttribute)attrs [0]).IsLocalizable)
894 string memberName = mi.Name;
895 string resname = String.Concat (attvalue, ".", memberName);
897 if (!ResourceProviderHasObject (resname))
900 // __ctrl.Text = System.Convert.ToString(HttpContext.GetLocalResourceObject("ButtonResource1.Text"));
901 string inputFile = parser.InputFile;
902 string physPath = HttpContext.Current.Request.PhysicalApplicationPath;
904 if (StrUtils.StartsWith (inputFile, physPath))
905 inputFile = parser.InputFile.Substring (physPath.Length - 1);
909 char dsc = System.IO.Path.DirectorySeparatorChar;
911 inputFile = inputFile.Replace (dsc, '/');
913 object obj = HttpContext.GetLocalResourceObject (inputFile, resname);
917 if (!isProperty && !isField)
918 return; // an "impossible" case
920 CodeAssignStatement assign = new CodeAssignStatement ();
922 assign.Left = new CodePropertyReferenceExpression (ctrlVar, memberName);
923 assign.Right = ResourceExpressionBuilder.CreateGetLocalResourceObject (mi, resname);
925 builder.Method.Statements.Add (AddLinePragma (assign, builder));
928 void AssignPropertiesFromResources (ControlBuilder builder, Type controlType, string attvalue)
930 // Process all public fields and properties of the control. We don't use GetMembers to make the code
932 FieldInfo [] fields = controlType.GetFields (
933 BindingFlags.Instance | BindingFlags.Static |
934 BindingFlags.Public | BindingFlags.FlattenHierarchy);
935 PropertyInfo [] properties = controlType.GetProperties (
936 BindingFlags.Instance | BindingFlags.Static |
937 BindingFlags.Public | BindingFlags.FlattenHierarchy);
939 foreach (FieldInfo fi in fields)
940 AssignPropertyFromResources (builder, fi, attvalue);
941 foreach (PropertyInfo pi in properties)
942 AssignPropertyFromResources (builder, pi, attvalue);
945 void AssignPropertiesFromResources (ControlBuilder builder, string attvalue)
947 if (attvalue == null || attvalue.Length == 0)
950 Type controlType = builder.ControlType;
951 if (controlType == null)
954 AssignPropertiesFromResources (builder, controlType, attvalue);
958 void AddEventAssign (CodeMemberMethod method, ControlBuilder builder, string name, Type type, string value)
960 //"__ctrl.{0} += new {1} (this.{2});"
961 CodeEventReferenceExpression evtID = new CodeEventReferenceExpression (ctrlVar, name);
963 CodeDelegateCreateExpression create;
964 create = new CodeDelegateCreateExpression (new CodeTypeReference (type), thisRef, value);
966 CodeAttachEventStatement attach = new CodeAttachEventStatement (evtID, create);
967 method.Statements.Add (attach);
970 void CreateAssignStatementFromAttribute (ControlBuilder builder, string id)
972 EventInfo [] ev_info = null;
973 Type type = builder.ControlType;
975 string attvalue = builder.GetAttribute (id);
976 if (id.Length > 2 && id.Substring (0, 2).ToUpper () == "ON"){
978 ev_info = type.GetEvents ();
980 string id_as_event = id.Substring (2);
981 foreach (EventInfo ev in ev_info){
982 if (InvariantCompareNoCase (ev.Name, id_as_event)){
983 AddEventAssign (builder.Method,
996 if (id.ToLower () == "meta:resourcekey") {
997 AssignPropertiesFromResources (builder, attvalue);
1002 int hyphen = id.IndexOf ('-');
1005 alt_id = id.Substring (0, hyphen);
1007 MemberInfo fop = GetFieldOrProperty (type, alt_id);
1009 if (ProcessPropertiesAndFields (builder, fop, id, attvalue, null))
1013 if (!typeof (IAttributeAccessor).IsAssignableFrom (type))
1014 throw new ParseException (builder.Location, "Unrecognized attribute: " + id);
1016 CodeMemberMethod method = builder.Method;
1017 bool isDatabound = IsDataBound (attvalue);
1019 bool isExpression = !isDatabound && IsExpression (attvalue);
1023 string value = attvalue.Substring (3, attvalue.Length - 5).Trim ();
1024 CodeExpression valueExpression = null;
1026 if (startsWithBindRegex.Match (value).Success)
1027 valueExpression = CreateEvalInvokeExpression (bindRegexInValue, value, true);
1030 if (StrUtils.StartsWith (value, "Eval", true))
1031 valueExpression = CreateEvalInvokeExpression (evalRegexInValue, value, false);
1033 if (valueExpression == null && value != null && value.Trim () != String.Empty)
1034 valueExpression = new CodeSnippetExpression (value);
1036 CreateDBAttributeMethod (builder, id, valueExpression);
1038 CodeCastExpression cast;
1039 CodeMethodReferenceExpression methodExpr;
1040 CodeMethodInvokeExpression expr;
1042 cast = new CodeCastExpression (typeof (IAttributeAccessor), ctrlVar);
1043 methodExpr = new CodeMethodReferenceExpression (cast, "SetAttribute");
1044 expr = new CodeMethodInvokeExpression (methodExpr);
1045 expr.Parameters.Add (new CodePrimitiveExpression (id));
1047 CodeExpression valueExpr = null;
1050 valueExpr = CompileExpression (null, typeof (string), attvalue, true);
1052 if (valueExpr == null)
1054 valueExpr = new CodePrimitiveExpression (attvalue);
1056 expr.Parameters.Add (valueExpr);
1057 method.Statements.Add (AddLinePragma (expr, builder));
1061 protected void CreateAssignStatementsFromAttributes (ControlBuilder builder)
1063 this.dataBoundAtts = 0;
1064 IDictionary atts = builder.Attributes;
1065 if (atts == null || atts.Count == 0)
1068 foreach (string id in atts.Keys) {
1069 if (InvariantCompareNoCase (id, "runat"))
1071 // ID is assigned in BuildControltree
1072 if (InvariantCompareNoCase (id, "id"))
1076 /* we skip SkinID here as it's assigned in BuildControlTree */
1077 if (InvariantCompareNoCase (id, "skinid"))
1079 if (InvariantCompareNoCase (id, "meta:resourcekey"))
1080 continue; // ignore, this one's processed at the very end of
1083 CreateAssignStatementFromAttribute (builder, id);
1087 void CreateDBAttributeMethod (ControlBuilder builder, string attr, CodeExpression code)
1092 string id = builder.GetNextID (null);
1093 string dbMethodName = "__DataBind_" + id;
1094 CodeMemberMethod method = builder.Method;
1095 AddEventAssign (method, builder, "DataBinding", typeof (EventHandler), dbMethodName);
1097 method = CreateDBMethod (builder, dbMethodName, GetContainerType (builder), builder.ControlType);
1099 builder.DataBindingMethod = method;
1101 CodeCastExpression cast;
1102 CodeMethodReferenceExpression methodExpr;
1103 CodeMethodInvokeExpression expr;
1105 CodeVariableReferenceExpression targetExpr = new CodeVariableReferenceExpression ("target");
1106 cast = new CodeCastExpression (typeof (IAttributeAccessor), targetExpr);
1107 methodExpr = new CodeMethodReferenceExpression (cast, "SetAttribute");
1108 expr = new CodeMethodInvokeExpression (methodExpr);
1109 expr.Parameters.Add (new CodePrimitiveExpression (attr));
1110 CodeMethodInvokeExpression tostring = new CodeMethodInvokeExpression ();
1111 tostring.Method = new CodeMethodReferenceExpression (
1112 new CodeTypeReferenceExpression (typeof (Convert)),
1114 tostring.Parameters.Add (code);
1115 expr.Parameters.Add (tostring);
1116 method.Statements.Add (expr);
1117 mainClass.Members.Add (method);
1120 void AddRenderControl (ControlBuilder builder)
1122 CodeIndexerExpression indexer = new CodeIndexerExpression ();
1123 indexer.TargetObject = new CodePropertyReferenceExpression (
1124 new CodeArgumentReferenceExpression ("parameterContainer"),
1127 indexer.Indices.Add (new CodePrimitiveExpression (builder.RenderIndex));
1129 CodeMethodInvokeExpression invoke = new CodeMethodInvokeExpression (indexer, "RenderControl");
1130 invoke.Parameters.Add (new CodeArgumentReferenceExpression ("__output"));
1131 builder.RenderMethod.Statements.Add (invoke);
1132 builder.IncreaseRenderIndex ();
1135 protected void AddChildCall (ControlBuilder parent, ControlBuilder child)
1137 if (parent == null || child == null)
1140 CodeMethodReferenceExpression m = new CodeMethodReferenceExpression (thisRef, child.Method.Name);
1141 CodeMethodInvokeExpression expr = new CodeMethodInvokeExpression (m);
1143 object [] atts = null;
1145 if (child.ControlType != null)
1146 atts = child.ControlType.GetCustomAttributes (typeof (PartialCachingAttribute), true);
1148 if (atts != null && atts.Length > 0) {
1149 PartialCachingAttribute pca = (PartialCachingAttribute) atts [0];
1150 CodeTypeReferenceExpression cc = new CodeTypeReferenceExpression("System.Web.UI.StaticPartialCachingControl");
1151 CodeMethodInvokeExpression build = new CodeMethodInvokeExpression (cc, "BuildCachedControl");
1152 build.Parameters.Add (new CodeArgumentReferenceExpression("__ctrl"));
1153 build.Parameters.Add (new CodePrimitiveExpression (child.ID));
1156 build.Parameters.Add (new CodePrimitiveExpression (child.ControlType.GetHashCode ().ToString ()));
1159 build.Parameters.Add (new CodePrimitiveExpression (Guid.NewGuid ().ToString ()));
1161 build.Parameters.Add (new CodePrimitiveExpression (pca.Duration));
1162 build.Parameters.Add (new CodePrimitiveExpression (pca.VaryByParams));
1163 build.Parameters.Add (new CodePrimitiveExpression (pca.VaryByControls));
1164 build.Parameters.Add (new CodePrimitiveExpression (pca.VaryByCustom));
1165 build.Parameters.Add (new CodeDelegateCreateExpression (
1166 new CodeTypeReference (typeof (System.Web.UI.BuildMethod)),
1167 thisRef, child.Method.Name));
1169 parent.MethodStatements.Add (AddLinePragma (build, parent));
1170 if (parent.HasAspCode)
1171 AddRenderControl (parent);
1175 if (child.IsProperty || parent.ChildrenAsProperties) {
1176 expr.Parameters.Add (new CodeFieldReferenceExpression (ctrlVar, child.TagName));
1177 parent.MethodStatements.Add (AddLinePragma (expr, parent));
1181 parent.MethodStatements.Add (AddLinePragma (expr, parent));
1182 CodeFieldReferenceExpression field = new CodeFieldReferenceExpression (thisRef, child.ID);
1183 if (parent.ControlType == null || typeof (IParserAccessor).IsAssignableFrom (parent.ControlType))
1184 AddParsedSubObjectStmt (parent, field);
1186 CodeMethodInvokeExpression invoke = new CodeMethodInvokeExpression (ctrlVar, "Add");
1187 invoke.Parameters.Add (field);
1188 parent.MethodStatements.Add (AddLinePragma (invoke, parent));
1191 if (parent.HasAspCode)
1192 AddRenderControl (parent);
1195 void AddTemplateInvocation (ControlBuilder builder, string name, string methodName)
1197 CodePropertyReferenceExpression prop = new CodePropertyReferenceExpression (ctrlVar, name);
1199 CodeDelegateCreateExpression newBuild = new CodeDelegateCreateExpression (
1200 new CodeTypeReference (typeof (BuildTemplateMethod)), thisRef, methodName);
1202 CodeObjectCreateExpression newCompiled = new CodeObjectCreateExpression (typeof (CompiledTemplateBuilder));
1203 newCompiled.Parameters.Add (newBuild);
1205 CodeAssignStatement assign = new CodeAssignStatement (prop, newCompiled);
1206 builder.Method.Statements.Add (AddLinePragma (assign, builder));
1210 void AddBindableTemplateInvocation (ControlBuilder builder, string name, string methodName, string extractMethodName)
1212 CodePropertyReferenceExpression prop = new CodePropertyReferenceExpression (ctrlVar, name);
1214 CodeDelegateCreateExpression newBuild = new CodeDelegateCreateExpression (
1215 new CodeTypeReference (typeof (BuildTemplateMethod)), thisRef, methodName);
1217 CodeDelegateCreateExpression newExtract = new CodeDelegateCreateExpression (
1218 new CodeTypeReference (typeof (ExtractTemplateValuesMethod)), thisRef, extractMethodName);
1220 CodeObjectCreateExpression newCompiled = new CodeObjectCreateExpression (typeof (CompiledBindableTemplateBuilder));
1221 newCompiled.Parameters.Add (newBuild);
1222 newCompiled.Parameters.Add (newExtract);
1224 CodeAssignStatement assign = new CodeAssignStatement (prop, newCompiled);
1225 builder.Method.Statements.Add (AddLinePragma (assign, builder));
1228 string CreateExtractValuesMethod (TemplateBuilder builder)
1230 CodeMemberMethod method = new CodeMemberMethod ();
1231 method.Name = "__ExtractValues_" + builder.ID;
1232 method.Attributes = MemberAttributes.Private | MemberAttributes.Final;
1233 method.ReturnType = new CodeTypeReference (typeof(IOrderedDictionary));
1235 CodeParameterDeclarationExpression arg = new CodeParameterDeclarationExpression ();
1236 arg.Type = new CodeTypeReference (typeof (Control));
1237 arg.Name = "__container";
1238 method.Parameters.Add (arg);
1239 mainClass.Members.Add (method);
1241 CodeObjectCreateExpression newTable = new CodeObjectCreateExpression ();
1242 newTable.CreateType = new CodeTypeReference (typeof(OrderedDictionary));
1243 method.Statements.Add (new CodeVariableDeclarationStatement (typeof(OrderedDictionary), "__table", newTable));
1244 CodeVariableReferenceExpression tableExp = new CodeVariableReferenceExpression ("__table");
1246 if (builder.Bindings != null) {
1247 Hashtable hash = new Hashtable ();
1248 foreach (TemplateBinding binding in builder.Bindings) {
1249 CodeConditionStatement sif;
1250 CodeVariableReferenceExpression control;
1251 CodeAssignStatement assign;
1253 if (hash [binding.ControlId] == null) {
1255 CodeVariableDeclarationStatement dec = new CodeVariableDeclarationStatement (binding.ControlType, binding.ControlId);
1256 method.Statements.Add (dec);
1257 CodeVariableReferenceExpression cter = new CodeVariableReferenceExpression ("__container");
1258 CodeMethodInvokeExpression invoke = new CodeMethodInvokeExpression (cter, "FindControl");
1259 invoke.Parameters.Add (new CodePrimitiveExpression (binding.ControlId));
1261 assign = new CodeAssignStatement ();
1262 control = new CodeVariableReferenceExpression (binding.ControlId);
1263 assign.Left = control;
1264 assign.Right = new CodeCastExpression (binding.ControlType, invoke);
1265 method.Statements.Add (assign);
1267 sif = new CodeConditionStatement ();
1268 sif.Condition = new CodeBinaryOperatorExpression (control, CodeBinaryOperatorType.IdentityInequality, new CodePrimitiveExpression (null));
1270 method.Statements.Add (sif);
1272 hash [binding.ControlId] = sif;
1275 sif = (CodeConditionStatement) hash [binding.ControlId];
1276 control = new CodeVariableReferenceExpression (binding.ControlId);
1277 assign = new CodeAssignStatement ();
1278 assign.Left = new CodeIndexerExpression (tableExp, new CodePrimitiveExpression (binding.FieldName));
1279 assign.Right = new CodePropertyReferenceExpression (control, binding.ControlProperty);
1280 sif.TrueStatements.Add (assign);
1284 method.Statements.Add (new CodeMethodReturnStatement (tableExp));
1288 void AddContentTemplateInvocation (ContentBuilderInternal cbuilder, CodeMemberMethod method, string methodName)
1290 CodeDelegateCreateExpression newBuild = new CodeDelegateCreateExpression (
1291 new CodeTypeReference (typeof (BuildTemplateMethod)), thisRef, methodName);
1293 CodeObjectCreateExpression newCompiled = new CodeObjectCreateExpression (typeof (CompiledTemplateBuilder));
1294 newCompiled.Parameters.Add (newBuild);
1296 CodeMethodInvokeExpression invoke = new CodeMethodInvokeExpression (thisRef, "AddContentTemplate");
1297 invoke.Parameters.Add (new CodePrimitiveExpression (cbuilder.ContentPlaceHolderID));
1298 invoke.Parameters.Add (newCompiled);
1300 method.Statements.Add (AddLinePragma (invoke, cbuilder));
1304 void AddCodeRender (ControlBuilder parent, CodeRenderBuilder cr)
1306 if (cr.Code == null || cr.Code.Trim () == "")
1310 CodeSnippetStatement code = new CodeSnippetStatement (cr.Code);
1311 parent.RenderMethod.Statements.Add (AddLinePragma (code, cr));
1315 CodeMethodInvokeExpression expr = new CodeMethodInvokeExpression ();
1316 expr.Method = new CodeMethodReferenceExpression (
1317 new CodeArgumentReferenceExpression ("__output"),
1320 expr.Parameters.Add (new CodeSnippetExpression (cr.Code));
1321 parent.RenderMethod.Statements.Add (AddLinePragma (expr, cr));
1325 static PropertyInfo GetContainerProperty (Type type, string[] propNames)
1329 foreach (string name in propNames) {
1330 prop = type.GetProperty (name, noCaseFlags & ~BindingFlags.NonPublic);
1338 static string[] containerPropNames = {"Items", "Rows"};
1341 static Type GetContainerType (ControlBuilder builder)
1343 Type type = builder.BindingContainerType;
1349 PropertyInfo prop = GetContainerProperty (type, containerPropNames);
1353 Type ptype = prop.PropertyType;
1354 if (!typeof (ICollection).IsAssignableFrom (ptype))
1357 prop = ptype.GetProperty ("Item", noCaseFlags & ~BindingFlags.NonPublic);
1361 return prop.PropertyType;
1365 CodeMemberMethod CreateDBMethod (ControlBuilder builder, string name, Type container, Type target)
1367 CodeMemberMethod method = new CodeMemberMethod ();
1368 method.Attributes = MemberAttributes.Public | MemberAttributes.Final;
1370 method.Parameters.Add (new CodeParameterDeclarationExpression (typeof (object), "sender"));
1371 method.Parameters.Add (new CodeParameterDeclarationExpression (typeof (EventArgs), "e"));
1373 CodeTypeReference containerRef = new CodeTypeReference (container);
1374 CodeTypeReference targetRef = new CodeTypeReference (target);
1376 CodeVariableDeclarationStatement decl = new CodeVariableDeclarationStatement();
1377 decl.Name = "Container";
1378 decl.Type = containerRef;
1379 method.Statements.Add (decl);
1381 decl = new CodeVariableDeclarationStatement();
1382 decl.Name = "target";
1383 decl.Type = targetRef;
1384 method.Statements.Add (decl);
1386 CodeVariableReferenceExpression targetExpr = new CodeVariableReferenceExpression ("target");
1387 CodeAssignStatement assign = new CodeAssignStatement ();
1388 assign.Left = targetExpr;
1389 assign.Right = new CodeCastExpression (targetRef, new CodeArgumentReferenceExpression ("sender"));
1390 method.Statements.Add (AddLinePragma (assign, builder));
1392 assign = new CodeAssignStatement ();
1393 assign.Left = new CodeVariableReferenceExpression ("Container");
1394 assign.Right = new CodeCastExpression (containerRef,
1395 new CodePropertyReferenceExpression (targetExpr, "BindingContainer"));
1396 method.Statements.Add (AddLinePragma (assign, builder));
1401 void AddDataBindingLiteral (ControlBuilder builder, DataBindingBuilder db)
1403 if (db.Code == null || db.Code.Trim () == "")
1407 CreateField (db, false);
1409 string dbMethodName = "__DataBind_" + db.ID;
1410 // Add the method that builds the DataBoundLiteralControl
1411 InitMethod (db, false, false);
1412 CodeMemberMethod method = db.Method;
1413 AddEventAssign (method, builder, "DataBinding", typeof (EventHandler), dbMethodName);
1414 method.Statements.Add (new CodeMethodReturnStatement (ctrlVar));
1416 // Add the DataBind handler
1417 method = CreateDBMethod (builder, dbMethodName, GetContainerType (builder), typeof (DataBoundLiteralControl));
1419 builder.DataBindingMethod = method;
1421 CodeVariableReferenceExpression targetExpr = new CodeVariableReferenceExpression ("target");
1422 CodeMethodInvokeExpression invoke = new CodeMethodInvokeExpression ();
1423 invoke.Method = new CodeMethodReferenceExpression (targetExpr, "SetDataBoundString");
1424 invoke.Parameters.Add (new CodePrimitiveExpression (0));
1426 CodeMethodInvokeExpression tostring = new CodeMethodInvokeExpression ();
1427 tostring.Method = new CodeMethodReferenceExpression (
1428 new CodeTypeReferenceExpression (typeof (Convert)),
1430 tostring.Parameters.Add (new CodeSnippetExpression (db.Code));
1431 invoke.Parameters.Add (tostring);
1432 method.Statements.Add (AddLinePragma (invoke, builder));
1434 mainClass.Members.Add (method);
1436 AddChildCall (builder, db);
1439 void FlushText (ControlBuilder builder, StringBuilder sb)
1441 if (sb.Length > 0) {
1442 AddLiteralSubObject (builder, sb.ToString ());
1447 protected void CreateControlTree (ControlBuilder builder, bool inTemplate, bool childrenAsProperties)
1450 bool isTemplate = (typeof (TemplateBuilder).IsAssignableFrom (builder.GetType ()));
1452 if (!isTemplate && !inTemplate) {
1453 CreateField (builder, true);
1454 } else if (!isTemplate) {
1455 bool doCheck = false;
1458 bool singleInstance = false;
1459 ControlBuilder pb = builder.ParentBuilder;
1460 TemplateBuilder tpb;
1461 while (pb != null) {
1462 tpb = pb as TemplateBuilder;
1464 pb = pb.ParentBuilder;
1468 if (tpb.TemplateInstance == TemplateInstance.Single)
1469 singleInstance = true;
1473 if (!singleInstance)
1475 builder.ID = builder.GetNextID (null);
1480 CreateField (builder, doCheck);
1483 InitMethod (builder, isTemplate, childrenAsProperties);
1484 if (!isTemplate || builder.GetType () == typeof (RootBuilder))
1485 CreateAssignStatementsFromAttributes (builder);
1487 if (builder.Children != null && builder.Children.Count > 0) {
1488 StringBuilder sb = new StringBuilder ();
1489 foreach (object b in builder.Children) {
1491 sb.Append ((string) b);
1495 FlushText (builder, sb);
1496 if (b is ObjectTagBuilder) {
1497 ProcessObjectTag ((ObjectTagBuilder) b);
1498 } else if (b is StringPropertyBuilder) {
1499 StringPropertyBuilder pb = b as StringPropertyBuilder;
1500 if (pb.Children != null && pb.Children.Count > 0) {
1501 StringBuilder asb = new StringBuilder ();
1502 foreach (string s in pb.Children)
1504 CodeMemberMethod method = builder.Method;
1505 CodeAssignStatement assign = new CodeAssignStatement ();
1506 assign.Left = new CodePropertyReferenceExpression (ctrlVar, pb.PropertyName);
1507 assign.Right = new CodePrimitiveExpression (asb.ToString ());
1508 method.Statements.Add (AddLinePragma (assign, builder));
1512 else if (b is ContentBuilderInternal) {
1513 ContentBuilderInternal cb = (ContentBuilderInternal) b;
1514 CreateControlTree (cb, false, true);
1515 AddContentTemplateInvocation (cb, builder.Method, cb.Method.Name);
1519 // Ignore TemplateBuilders - they are processed in InitMethod
1520 else if (b is TemplateBuilder) {
1521 } else if (b is CodeRenderBuilder) {
1522 AddCodeRender (builder, (CodeRenderBuilder) b);
1523 } else if (b is DataBindingBuilder) {
1524 AddDataBindingLiteral (builder, (DataBindingBuilder) b);
1525 } else if (b is ControlBuilder) {
1526 ControlBuilder child = (ControlBuilder) b;
1527 CreateControlTree (child, inTemplate, builder.ChildrenAsProperties);
1528 AddChildCall (builder, child);
1531 throw new Exception ("???");
1534 ControlBuilder bldr = b as ControlBuilder;
1535 bldr.ProcessGeneratedCode (CompileUnit, BaseType, DerivedType, bldr.Method, bldr.DataBindingMethod);
1539 FlushText (builder, sb);
1542 ControlBuilder defaultPropertyBuilder = builder.DefaultPropertyBuilder;
1543 if (defaultPropertyBuilder != null) {
1544 CreateControlTree (defaultPropertyBuilder, false, true);
1545 AddChildCall (builder, defaultPropertyBuilder);
1548 if (builder.HasAspCode) {
1549 CodeMemberMethod renderMethod = builder.RenderMethod;
1550 CodeMethodReferenceExpression m = new CodeMethodReferenceExpression ();
1551 m.TargetObject = thisRef;
1552 m.MethodName = renderMethod.Name;
1554 CodeDelegateCreateExpression create = new CodeDelegateCreateExpression ();
1555 create.DelegateType = new CodeTypeReference (typeof (RenderMethod));
1556 create.TargetObject = thisRef;
1557 create.MethodName = renderMethod.Name;
1559 CodeMethodInvokeExpression invoke = new CodeMethodInvokeExpression ();
1560 invoke.Method = new CodeMethodReferenceExpression (ctrlVar, "SetRenderMethodDelegate");
1561 invoke.Parameters.Add (create);
1563 builder.MethodStatements.Add (invoke);
1567 if (builder is RootBuilder)
1568 if (!String.IsNullOrEmpty (parser.MetaResourceKey))
1569 AssignPropertiesFromResources (builder, parser.BaseType, parser.MetaResourceKey);
1571 if ((!isTemplate || builder is RootBuilder) && !String.IsNullOrEmpty (builder.GetAttribute ("meta:resourcekey")))
1572 CreateAssignStatementFromAttribute (builder, "meta:resourcekey");
1575 if (!childrenAsProperties && typeof (Control).IsAssignableFrom (builder.ControlType))
1576 builder.Method.Statements.Add (new CodeMethodReturnStatement (ctrlVar));
1579 builder.ProcessGeneratedCode (CompileUnit, BaseType, DerivedType, builder.Method, builder.DataBindingMethod);
1584 protected override void AddStatementsToConstructor (CodeConstructor ctor)
1586 if (masterPageContentPlaceHolders == null || masterPageContentPlaceHolders.Count == 0)
1589 var ilist = new CodeVariableDeclarationStatement ();
1590 ilist.Name = "__contentPlaceHolders";
1591 ilist.Type = new CodeTypeReference (typeof (IList));
1592 ilist.InitExpression = new CodePropertyReferenceExpression (thisRef, "ContentPlaceHolders");
1594 var ilistRef = new CodeVariableReferenceExpression ("__contentPlaceHolders");
1595 CodeStatementCollection statements = ctor.Statements;
1596 statements.Add (ilist);
1598 CodeMethodInvokeExpression mcall;
1599 foreach (string id in masterPageContentPlaceHolders) {
1600 mcall = new CodeMethodInvokeExpression (ilistRef, "Add");
1601 mcall.Parameters.Add (new CodePrimitiveExpression (id.ToLowerInvariant ()));
1602 statements.Add (mcall);
1607 protected internal override void CreateMethods ()
1609 base.CreateMethods ();
1611 CreateProperties ();
1612 CreateControlTree (parser.RootBuilder, false, false);
1613 CreateFrameworkInitializeMethod ();
1617 protected override void InitializeType ()
1619 List <string> registeredTagNames = parser.RegisteredTagNames;
1620 RootBuilder rb = parser.RootBuilder;
1621 if (rb == null || registeredTagNames == null || registeredTagNames.Count == 0)
1624 AspComponent component;
1625 foreach (string tagName in registeredTagNames) {
1626 component = rb.Foundry.GetComponent (tagName);
1627 if (component == null || component.Type == null) // unlikely
1628 throw new HttpException ("Custom control '" + tagName + "' cannot be found.");
1629 if (!(typeof (UserControl).IsAssignableFrom (component.Type)))
1630 throw new ParseException (parser.Location, "Type '" + component.Type.ToString () + "' does not derive from 'System.Web.UI.UserControl'.");
1631 AddReferencedAssembly (component.Type.Assembly);
1635 void CallBaseFrameworkInitialize (CodeMemberMethod method)
1637 CodeBaseReferenceExpression baseRef = new CodeBaseReferenceExpression ();
1638 CodeMethodInvokeExpression invoke = new CodeMethodInvokeExpression (baseRef, "FrameworkInitialize");
1639 method.Statements.Add (invoke);
1643 void CallSetStringResourcePointer (CodeMemberMethod method)
1645 CodeFieldReferenceExpression stringResource = GetMainClassFieldReferenceExpression ("__stringResource");
1646 method.Statements.Add (
1647 new CodeMethodInvokeExpression (
1649 "SetStringResourcePointer",
1650 new CodeExpression[] {stringResource, new CodePrimitiveExpression (0)})
1654 void CreateFrameworkInitializeMethod ()
1656 CodeMemberMethod method = new CodeMemberMethod ();
1657 method.Name = "FrameworkInitialize";
1658 method.Attributes = MemberAttributes.Family | MemberAttributes.Override;
1659 PrependStatementsToFrameworkInitialize (method);
1661 CallBaseFrameworkInitialize (method);
1663 CallSetStringResourcePointer (method);
1664 AppendStatementsToFrameworkInitialize (method);
1665 mainClass.Members.Add (method);
1668 protected virtual void PrependStatementsToFrameworkInitialize (CodeMemberMethod method)
1672 protected virtual void AppendStatementsToFrameworkInitialize (CodeMemberMethod method)
1674 if (!parser.EnableViewState) {
1675 CodeAssignStatement stmt = new CodeAssignStatement ();
1676 stmt.Left = new CodePropertyReferenceExpression (thisRef, "EnableViewState");
1677 stmt.Right = new CodePrimitiveExpression (false);
1678 method.Statements.Add (stmt);
1681 CodeMethodReferenceExpression methodExpr;
1682 methodExpr = new CodeMethodReferenceExpression (thisRef, "__BuildControlTree");
1683 CodeMethodInvokeExpression expr = new CodeMethodInvokeExpression (methodExpr, thisRef);
1684 method.Statements.Add (new CodeExpressionStatement (expr));
1687 protected override void AddApplicationAndSessionObjects ()
1689 foreach (ObjectTagBuilder tag in GlobalAsaxCompiler.ApplicationObjects) {
1690 CreateFieldForObject (tag.Type, tag.ObjectID);
1691 CreateApplicationOrSessionPropertyForObject (tag.Type, tag.ObjectID, true, false);
1694 foreach (ObjectTagBuilder tag in GlobalAsaxCompiler.SessionObjects) {
1695 CreateApplicationOrSessionPropertyForObject (tag.Type, tag.ObjectID, false, false);
1699 protected override void CreateStaticFields ()
1701 base.CreateStaticFields ();
1703 CodeMemberField fld = new CodeMemberField (typeof (object), "__stringResource");
1704 fld.Attributes = MemberAttributes.Private | MemberAttributes.Static;
1705 fld.InitExpression = new CodePrimitiveExpression (null);
1706 mainClass.Members.Add (fld);
1709 protected void ProcessObjectTag (ObjectTagBuilder tag)
1711 string fieldName = CreateFieldForObject (tag.Type, tag.ObjectID);
1712 CreatePropertyForObject (tag.Type, tag.ObjectID, fieldName, false);
1715 void CreateProperties ()
1717 if (!parser.AutoEventWireup) {
1718 CreateAutoEventWireup ();
1720 CreateAutoHandlers ();
1723 CreateApplicationInstance ();
1726 void CreateApplicationInstance ()
1728 CodeMemberProperty prop = new CodeMemberProperty ();
1729 Type appType = typeof (HttpApplication);
1730 prop.Type = new CodeTypeReference (appType);
1731 prop.Name = "ApplicationInstance";
1732 prop.Attributes = MemberAttributes.Family | MemberAttributes.Final;
1734 CodePropertyReferenceExpression propRef = new CodePropertyReferenceExpression (thisRef, "Context");
1736 propRef = new CodePropertyReferenceExpression (propRef, "ApplicationInstance");
1738 CodeCastExpression cast = new CodeCastExpression (appType.FullName, propRef);
1739 prop.GetStatements.Add (new CodeMethodReturnStatement (cast));
1741 if (partialClass != null)
1742 partialClass.Members.Add (prop);
1745 mainClass.Members.Add (prop);
1749 void CreateContentPlaceHolderTemplateProperty (string backingField, string name)
1751 CodeMemberProperty prop = new CodeMemberProperty ();
1752 prop.Type = new CodeTypeReference (typeof (ITemplate));
1754 prop.Attributes = MemberAttributes.Public;
1756 var ret = new CodeMethodReturnStatement ();
1757 var fldRef = new CodeFieldReferenceExpression (thisRef, backingField);
1758 ret.Expression = fldRef;
1759 prop.GetStatements.Add (ret);
1760 prop.SetStatements.Add (new CodeAssignStatement (fldRef, new CodePropertySetValueReferenceExpression ()));
1762 prop.CustomAttributes.Add (new CodeAttributeDeclaration ("TemplateContainer", new CodeAttributeArgument [] {
1763 new CodeAttributeArgument (new CodeTypeOfExpression (new CodeTypeReference (typeof (MasterPage))))
1768 var enumValueRef = new CodeFieldReferenceExpression (new CodeTypeReferenceExpression (typeof (TemplateInstance)), "Single");
1769 prop.CustomAttributes.Add (new CodeAttributeDeclaration ("TemplateInstanceAttribute", new CodeAttributeArgument [] {
1770 new CodeAttributeArgument (enumValueRef)
1775 mainClass.Members.Add (prop);
1779 void CreateAutoHandlers ()
1781 // Create AutoHandlers property
1782 CodeMemberProperty prop = new CodeMemberProperty ();
1783 prop.Type = new CodeTypeReference (typeof (int));
1784 prop.Name = "AutoHandlers";
1785 prop.Attributes = MemberAttributes.Family | MemberAttributes.Override;
1787 CodeMethodReturnStatement ret = new CodeMethodReturnStatement ();
1788 CodeFieldReferenceExpression fldRef ;
1789 fldRef = new CodeFieldReferenceExpression (mainClassExpr, "__autoHandlers");
1790 ret.Expression = fldRef;
1791 prop.GetStatements.Add (ret);
1792 prop.SetStatements.Add (new CodeAssignStatement (fldRef, new CodePropertySetValueReferenceExpression ()));
1795 CodeAttributeDeclaration attr = new CodeAttributeDeclaration ("System.Obsolete");
1796 prop.CustomAttributes.Add (attr);
1799 mainClass.Members.Add (prop);
1801 // Add the __autoHandlers field
1802 CodeMemberField fld = new CodeMemberField (typeof (int), "__autoHandlers");
1803 fld.Attributes = MemberAttributes.Private | MemberAttributes.Static;
1804 mainClass.Members.Add (fld);
1807 void CreateAutoEventWireup ()
1809 // The getter returns false
1810 CodeMemberProperty prop = new CodeMemberProperty ();
1811 prop.Type = new CodeTypeReference (typeof (bool));
1812 prop.Name = "SupportAutoEvents";
1813 prop.Attributes = MemberAttributes.Family | MemberAttributes.Override;
1814 prop.GetStatements.Add (new CodeMethodReturnStatement (new CodePrimitiveExpression (false)));
1815 mainClass.Members.Add (prop);
1819 protected virtual string HandleUrlProperty (string str, MemberInfo member)
1825 TypeConverter GetConverterForMember (MemberInfo member)
1827 TypeConverterAttribute tca = null;
1831 attrs = member.GetCustomAttributes (typeof (TypeConverterAttribute), true);
1832 if (attrs.Length > 0)
1833 tca = attrs [0] as TypeConverterAttribute;
1835 attrs = member.GetCustomAttributes (true);
1837 foreach (object attr in attrs) {
1838 tca = attr as TypeConverterAttribute;
1845 if (tca == TypeConverterAttribute.Default)
1851 string typeName = tca.ConverterTypeName;
1852 if (typeName == null || typeName.Length == 0)
1857 t = HttpApplication.LoadType (typeName);
1858 } catch (Exception) {
1865 return (TypeConverter) Activator.CreateInstance (t);
1868 CodeExpression CreateNullableExpression (Type type, CodeExpression inst, bool nullable)
1874 return new CodeObjectCreateExpression (
1876 new CodeExpression[] {inst}
1883 bool SafeCanConvertFrom (Type type, TypeConverter cvt)
1886 return cvt.CanConvertFrom (type);
1887 } catch (NotImplementedException) {
1892 bool SafeCanConvertTo (Type type, TypeConverter cvt)
1895 return cvt.CanConvertTo (type);
1896 } catch (NotImplementedException) {
1901 CodeExpression GetExpressionFromString (Type type, string str, MemberInfo member)
1903 TypeConverter cvt = GetConverterForMember (member);
1904 if (cvt != null && !SafeCanConvertFrom (typeof (string), cvt))
1907 object convertedFromAttr = null;
1908 bool preConverted = false;
1909 if (cvt != null && str != null) {
1910 convertedFromAttr = cvt.ConvertFromInvariantString (str);
1911 if (convertedFromAttr != null) {
1912 type = convertedFromAttr.GetType ();
1913 preConverted = true;
1917 bool wasNullable = false;
1918 Type originalType = type;
1920 if (type.IsGenericType && type.GetGenericTypeDefinition() == typeof(Nullable<>)) {
1921 Type[] types = type.GetGenericArguments();
1922 originalType = type;
1923 type = types[0]; // we're interested only in the first type here
1927 if (type == typeof (string)) {
1929 return CreateNullableExpression (originalType,
1930 new CodePrimitiveExpression ((string) convertedFromAttr),
1934 object[] urlAttr = member.GetCustomAttributes (typeof (UrlPropertyAttribute), true);
1935 if (urlAttr.Length != 0)
1936 str = HandleUrlProperty (str, member);
1938 return CreateNullableExpression (originalType, new CodePrimitiveExpression (str), wasNullable);
1939 } else if (type == typeof (bool)) {
1941 return CreateNullableExpression (originalType,
1942 new CodePrimitiveExpression ((bool) convertedFromAttr),
1945 if (str == null || str == "" || InvariantCompareNoCase (str, "true"))
1946 return CreateNullableExpression (originalType, new CodePrimitiveExpression (true), wasNullable);
1947 else if (InvariantCompareNoCase (str, "false"))
1948 return CreateNullableExpression (originalType, new CodePrimitiveExpression (false), wasNullable);
1950 else if (wasNullable && InvariantCompareNoCase(str, "null"))
1951 return new CodePrimitiveExpression (null);
1954 throw new ParseException (currentLocation,
1955 "Value '" + str + "' is not a valid boolean.");
1956 } else if (type == monoTypeType)
1957 type = typeof (System.Type);
1960 return new CodePrimitiveExpression (null);
1962 if (type.IsPrimitive)
1963 return CreateNullableExpression (originalType,
1964 new CodePrimitiveExpression (
1965 Convert.ChangeType (preConverted ? convertedFromAttr : str,
1966 type, CultureInfo.InvariantCulture)),
1969 if (type == typeof (string [])) {
1973 subs = (string[])convertedFromAttr;
1975 subs = str.Split (',');
1976 CodeArrayCreateExpression expr = new CodeArrayCreateExpression ();
1977 expr.CreateType = new CodeTypeReference (typeof (string));
1978 foreach (string v in subs)
1979 expr.Initializers.Add (new CodePrimitiveExpression (v.Trim ()));
1981 return CreateNullableExpression (originalType, expr, wasNullable);
1984 if (type == typeof (Color)) {
1987 if (!preConverted) {
1988 if (colorConverter == null)
1989 colorConverter = TypeDescriptor.GetConverter (typeof (Color));
1991 if (str.Trim().Length == 0) {
1992 CodeTypeReferenceExpression ft = new CodeTypeReferenceExpression (typeof (Color));
1993 return CreateNullableExpression (originalType,
1994 new CodeFieldReferenceExpression (ft, "Empty"),
1999 if (str.IndexOf (',') == -1) {
2000 c = (Color) colorConverter.ConvertFromString (str);
2002 int [] argb = new int [4];
2005 string [] parts = str.Split (',');
2006 int length = parts.Length;
2008 throw new Exception ();
2010 int basei = (length == 4) ? 0 : 1;
2011 for (int i = length - 1; i >= 0; i--) {
2012 argb [basei + i] = (int) Byte.Parse (parts [i]);
2014 c = Color.FromArgb (argb [0], argb [1], argb [2], argb [3]);
2016 } catch (Exception e) {
2017 // Hack: "LightGrey" is accepted, but only for ASP.NET, as the
2018 // TypeConverter for Color fails to ConvertFromString.
2019 // Hence this hack...
2020 if (InvariantCompareNoCase ("LightGrey", str)) {
2021 c = Color.LightGray;
2023 throw new ParseException (currentLocation,
2024 "Color " + str + " is not a valid color.", e);
2028 c = (Color)convertedFromAttr;
2030 if (c.IsKnownColor) {
2031 CodeFieldReferenceExpression expr = new CodeFieldReferenceExpression ();
2032 if (c.IsSystemColor)
2033 type = typeof (SystemColors);
2035 expr.TargetObject = new CodeTypeReferenceExpression (type);
2036 expr.FieldName = c.Name;
2037 return CreateNullableExpression (originalType, expr, wasNullable);
2039 CodeMethodReferenceExpression m = new CodeMethodReferenceExpression ();
2040 m.TargetObject = new CodeTypeReferenceExpression (type);
2041 m.MethodName = "FromArgb";
2042 CodeMethodInvokeExpression invoke = new CodeMethodInvokeExpression (m);
2043 invoke.Parameters.Add (new CodePrimitiveExpression (c.A));
2044 invoke.Parameters.Add (new CodePrimitiveExpression (c.R));
2045 invoke.Parameters.Add (new CodePrimitiveExpression (c.G));
2046 invoke.Parameters.Add (new CodePrimitiveExpression (c.B));
2047 return CreateNullableExpression (originalType, invoke, wasNullable);
2051 TypeConverter converter = preConverted ? cvt : wasNullable ? TypeDescriptor.GetConverter (type) : null;
2052 if (converter == null) {
2053 PropertyDescriptor pdesc = TypeDescriptor.GetProperties (member.DeclaringType) [member.Name];
2055 converter = pdesc.Converter;
2058 switch (member.MemberType) {
2059 case MemberTypes.Field:
2060 memberType = ((FieldInfo)member).FieldType;
2063 case MemberTypes.Property:
2064 memberType = ((PropertyInfo)member).PropertyType;
2072 if (memberType == null)
2075 converter = TypeDescriptor.GetConverter (memberType);
2079 if (preConverted || (converter != null && SafeCanConvertFrom (typeof (string), converter))) {
2080 object value = preConverted ? convertedFromAttr : converter.ConvertFromInvariantString (str);
2082 if (SafeCanConvertTo (typeof (InstanceDescriptor), converter)) {
2083 InstanceDescriptor idesc = (InstanceDescriptor) converter.ConvertTo (value, typeof(InstanceDescriptor));
2085 return CreateNullableExpression (originalType, GenerateInstance (idesc, true),
2088 return new CodeCastExpression (type, GenerateInstance (idesc, true));
2091 CodeExpression exp = GenerateObjectInstance (value, false);
2093 return CreateNullableExpression (originalType, exp, wasNullable);
2095 CodeMethodReferenceExpression m = new CodeMethodReferenceExpression ();
2096 m.TargetObject = new CodeTypeReferenceExpression (typeof (TypeDescriptor));
2097 m.MethodName = "GetConverter";
2098 CodeMethodInvokeExpression invoke = new CodeMethodInvokeExpression (m);
2099 CodeTypeReference tref = new CodeTypeReference (type);
2100 invoke.Parameters.Add (new CodeTypeOfExpression (tref));
2102 invoke = new CodeMethodInvokeExpression (invoke, "ConvertFrom");
2103 invoke.Parameters.Add (new CodePrimitiveExpression (str));
2106 return CreateNullableExpression (originalType, invoke, wasNullable);
2108 return new CodeCastExpression (type, invoke);
2111 Console.WriteLine ("Unknown type: " + type + " value: " + str);
2113 return CreateNullableExpression (originalType, new CodePrimitiveExpression (str), wasNullable);
2116 CodeExpression GenerateInstance (InstanceDescriptor idesc, bool throwOnError)
2118 CodeExpression[] parameters = new CodeExpression [idesc.Arguments.Count];
2120 foreach (object ob in idesc.Arguments) {
2121 CodeExpression exp = GenerateObjectInstance (ob, throwOnError);
2122 if (exp == null) return null;
2123 parameters [n++] = exp;
2126 switch (idesc.MemberInfo.MemberType) {
2127 case MemberTypes.Constructor:
2128 CodeTypeReference tob = new CodeTypeReference (idesc.MemberInfo.DeclaringType);
2129 return new CodeObjectCreateExpression (tob, parameters);
2131 case MemberTypes.Method:
2132 CodeTypeReferenceExpression mt = new CodeTypeReferenceExpression (idesc.MemberInfo.DeclaringType);
2133 return new CodeMethodInvokeExpression (mt, idesc.MemberInfo.Name, parameters);
2135 case MemberTypes.Field:
2136 CodeTypeReferenceExpression ft = new CodeTypeReferenceExpression (idesc.MemberInfo.DeclaringType);
2137 return new CodeFieldReferenceExpression (ft, idesc.MemberInfo.Name);
2139 case MemberTypes.Property:
2140 CodeTypeReferenceExpression pt = new CodeTypeReferenceExpression (idesc.MemberInfo.DeclaringType);
2141 return new CodePropertyReferenceExpression (pt, idesc.MemberInfo.Name);
2143 throw new ParseException (currentLocation, "Invalid instance type.");
2146 CodeExpression GenerateObjectInstance (object value, bool throwOnError)
2149 return new CodePrimitiveExpression (null);
2151 if (value is System.Type) {
2152 CodeTypeReference tref = new CodeTypeReference (value.ToString ());
2153 return new CodeTypeOfExpression (tref);
2156 Type t = value.GetType ();
2158 if (t.IsPrimitive || value is string)
2159 return new CodePrimitiveExpression (value);
2162 Array ar = (Array) value;
2163 CodeExpression[] items = new CodeExpression [ar.Length];
2164 for (int n=0; n<ar.Length; n++) {
2165 CodeExpression exp = GenerateObjectInstance (ar.GetValue (n), throwOnError);
2166 if (exp == null) return null;
2169 return new CodeArrayCreateExpression (new CodeTypeReference (t), items);
2172 TypeConverter converter = TypeDescriptor.GetConverter (t);
2173 if (converter != null && converter.CanConvertTo (typeof (InstanceDescriptor))) {
2174 InstanceDescriptor idesc = (InstanceDescriptor) converter.ConvertTo (value, typeof(InstanceDescriptor));
2175 return GenerateInstance (idesc, throwOnError);
2178 InstanceDescriptor desc = GetDefaultInstanceDescriptor (value);
2179 if (desc != null) return GenerateInstance (desc, throwOnError);
2182 throw new ParseException (currentLocation, "Cannot generate an instance for the type: " + t);
2187 InstanceDescriptor GetDefaultInstanceDescriptor (object value)
2189 if (value is System.Web.UI.WebControls.Unit) {
2190 System.Web.UI.WebControls.Unit s = (System.Web.UI.WebControls.Unit) value;
2192 FieldInfo f = typeof (Unit).GetField ("Empty");
2193 return new InstanceDescriptor (f, null);
2195 ConstructorInfo c = typeof(System.Web.UI.WebControls.Unit).GetConstructor (
2196 BindingFlags.Instance | BindingFlags.Public,
2198 new Type[] {typeof(double), typeof(System.Web.UI.WebControls.UnitType)},
2201 return new InstanceDescriptor (c, new object[] {s.Value, s.Type});
2204 if (value is System.Web.UI.WebControls.FontUnit) {
2205 System.Web.UI.WebControls.FontUnit s = (System.Web.UI.WebControls.FontUnit) value;
2207 FieldInfo f = typeof (FontUnit).GetField ("Empty");
2208 return new InstanceDescriptor (f, null);
2211 Type cParamType = null;
2212 object cParam = null;
2215 case FontSize.AsUnit:
2216 case FontSize.NotSet:
2217 cParamType = typeof (System.Web.UI.WebControls.Unit);
2222 cParamType = typeof (string);
2223 cParam = s.Type.ToString ();
2227 ConstructorInfo c = typeof(System.Web.UI.WebControls.FontUnit).GetConstructor (
2228 BindingFlags.Instance | BindingFlags.Public,
2230 new Type[] {cParamType},
2233 return new InstanceDescriptor (c, new object[] {cParam});
2239 CodeMethodInvokeExpression CreateConsoleWriteLineCall (string format, params CodeExpression[] parms)
2241 CodeMethodReferenceExpression cwl = new CodeMethodReferenceExpression (new CodeTypeReferenceExpression (typeof (System.Console)), "WriteLine");
2242 CodeMethodInvokeExpression cwlCall = new CodeMethodInvokeExpression (cwl);
2244 cwlCall.Parameters.Add (new CodePrimitiveExpression (format));
2245 if (parms != null && parms.Length > 0)
2246 foreach (CodeExpression expr in parms)
2247 cwlCall.Parameters.Add (expr);