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CodeDom Assistant

, 21 Sep 2007
Generating CodeDom Code By Parsing C# or VB
codedomassistant_demo.zip
CodeDomAssistant_Demo
CodeDomAssistant.exe
ICSharpCode.NRefactory.dll
RemoteLoader.dll
SciLexer.dll
ScintillaNet.dll
codedomassistant_src.zip
sln.CodeDomAssistant
CodeDomAssistant
bin
Debug
SciLexer.dll
Properties
Settings.settings
NRefactory
NRefactoryASTGenerator
AST
Project
Configuration
Resources
ICSharpCode.NRefactory.snk
Src
Ast
General
Lexer
BuildKeywords.pl
CSharp
Special
VBNet
Parser
CSharp
cs.ATG
Frames
Parser.frame
Scanner.frame
SharpCoco.exe
VBNet
VBNET.ATG
PrettyPrinter
CSharp
VBNet
Visitors
Test
General
Lexer
CSharp
VBNet
Output
CodeDOM
CSharp
VBNet
Parser
Expressions
GlobalScope
Statements
TypeLevel
RemoteLoader
Properties
ScintillaNET
Configuration
Builtin
LexerKeywordListNames
LexerStyleNames
FindReplace
Printing
Properties
Resources
DeleteHS.png
GoToNextMessage - Copy.png
GoToNextMessage.png
GoToPreviousMessage.png
LineColorHS.png
Thumbs.db
ScintillaNET.csproj.vspscc
Snippets
// <file>
//     <copyright see="prj:///doc/copyright.txt"/>
//     <license see="prj:///doc/license.txt"/>
//     <owner name="Daniel Grunwald" email="daniel@danielgrunwald.de"/>
//     <version>$Revision: 979 $</version>
// </file>

using System;
using System.CodeDom;

namespace NRefactoryASTGenerator
{
	public enum NullableImplementation
	{
		/// <summary>
		/// Implement INullable with a virtual bool IsNull, create Null class and static instance
		/// of it.
		/// </summary>
		Default,
		/// <summary>
		/// Create Null class and a static instance using the "new" modifier.
		/// </summary>
		Shadow,
		/// <summary>
		/// Implement INullable with a virtual bool IsNull.
		/// </summary>
		Abstract,
		/// <summary>
		/// Complete an abstract nullable implementation by creating the Null class
		/// and the static instance.
		/// </summary>
		CompleteAbstract
	}
	
	public abstract class TypeImplementationModifierAttribute : Attribute
	{
		public abstract void ModifyImplementation(CodeNamespace cns, CodeTypeDeclaration ctd, Type type);
	}
	
	[AttributeUsage(AttributeTargets.Class)]
	public class CustomImplementationAttribute : Attribute
	{
	}
	
	[AttributeUsage(AttributeTargets.Class)]
	public class HasChildrenAttribute : Attribute
	{
	}
	
	[AttributeUsage(AttributeTargets.Field)]
	public class QuestionMarkDefaultAttribute : Attribute
	{
	}
	
	[AttributeUsage(AttributeTargets.Class)]
	public class FixOperatorDeclarationAttribute : TypeImplementationModifierAttribute
	{
		public override void ModifyImplementation(CodeNamespace cns, CodeTypeDeclaration ctd, Type type)
		{
			foreach (object o in ctd.Members) {
				CodeConstructor cc = o as CodeConstructor;
				if (cc != null) {
					cc.BaseConstructorArgs[0] = new CodePrimitiveExpression(null);
				}
			}
		}
	}
	
	[AttributeUsage(AttributeTargets.Class, AllowMultiple = true)]
	public class IncludeMemberAttribute : TypeImplementationModifierAttribute
	{
		string code;
		
		public IncludeMemberAttribute(string code)
		{
			this.code = code;
		}
		
		public override void ModifyImplementation(CodeNamespace cns, CodeTypeDeclaration ctd, Type type)
		{
			ctd.Members.Add(new CodeSnippetTypeMember(code));
		}
	}
	
	[AttributeUsage(AttributeTargets.Class, AllowMultiple = true)]
	public class IncludeBoolPropertyAttribute : TypeImplementationModifierAttribute
	{
		string name;
		string code;
		
		public IncludeBoolPropertyAttribute(string name, string code)
		{
			this.name = name;
			this.code = code;
		}
		
		public override void ModifyImplementation(CodeNamespace cns, CodeTypeDeclaration ctd, Type type)
		{
			CodeMemberProperty prop = new CodeMemberProperty();
			prop.Name = name;
			prop.Type = new CodeTypeReference(typeof(bool));
			prop.Attributes = MemberAttributes.Public | MemberAttributes.Final;
			prop.GetStatements.Add(new CodeSnippetStatement("\t\t\t\t" + code));
			ctd.Members.Add(prop);
		}
	}
	
	[AttributeUsage(AttributeTargets.Class)]
	public class ImplementNullableAttribute : TypeImplementationModifierAttribute
	{
		NullableImplementation implementation;
		
		public ImplementNullableAttribute()
		{
			this.implementation = NullableImplementation.Default;
		}
		
		public ImplementNullableAttribute(NullableImplementation implementation)
		{
			this.implementation = implementation;
		}
		
		public override void ModifyImplementation(CodeNamespace cns, CodeTypeDeclaration ctd, Type type)
		{
			if (implementation == NullableImplementation.Default || implementation == NullableImplementation.Abstract) {
				ctd.BaseTypes.Add(new CodeTypeReference("INullable"));
				CodeMemberProperty prop = new CodeMemberProperty();
				prop.Name = "IsNull";
				prop.Type = new CodeTypeReference(typeof(bool));
				prop.Attributes = MemberAttributes.Public;
				prop.GetStatements.Add(new CodeMethodReturnStatement(new CodePrimitiveExpression(false)));
				ctd.Members.Add(prop);
			}
			if (implementation != NullableImplementation.Abstract) {
				CodeTypeDeclaration newType = new CodeTypeDeclaration("Null" + ctd.Name);
				newType.BaseTypes.Add(new CodeTypeReference(ctd.Name));
				cns.Types.Add(newType);
				
				System.Reflection.ConstructorInfo baseCtor = MainClass.GetBaseCtor(type);
				CodeConstructor ctor = new CodeConstructor();
				ctor.Attributes = MemberAttributes.Private;
				if (baseCtor != null) {
					foreach (object o in baseCtor.GetParameters()) {
						ctor.BaseConstructorArgs.Add(new CodePrimitiveExpression(null));
					}
				}
				newType.Members.Add(ctor);
				
				CodeMemberField field = new CodeMemberField(newType.Name, "instance");
				field.Attributes = MemberAttributes.Static;
				field.InitExpression = new CodeObjectCreateExpression(new CodeTypeReference(newType.Name));
				newType.Members.Add(field);
				
				CodeMemberProperty prop = new CodeMemberProperty();
				prop.Name = "Instance";
				prop.Type = new CodeTypeReference(newType.Name);
				prop.Attributes = MemberAttributes.Public | MemberAttributes.Static;
				prop.GetStatements.Add(new CodeMethodReturnStatement(new CodeVariableReferenceExpression("instance")));
				newType.Members.Add(prop);
				
				prop = new CodeMemberProperty();
				prop.Name = "IsNull";
				prop.Type = new CodeTypeReference(typeof(bool));
				prop.Attributes = MemberAttributes.Public | MemberAttributes.Override;
				prop.GetStatements.Add(new CodeMethodReturnStatement(new CodePrimitiveExpression(true)));
				newType.Members.Add(prop);
				
				CodeMemberMethod method = new CodeMemberMethod();
				method.Name = "AcceptVisitor";
				method.Attributes = MemberAttributes.Public | MemberAttributes.Override;
				method.Parameters.Add(new CodeParameterDeclarationExpression("IAstVisitor", "visitor"));
				method.Parameters.Add(new CodeParameterDeclarationExpression(typeof(object), "data"));
				method.ReturnType = new CodeTypeReference(typeof(object));
				method.Statements.Add(new CodeMethodReturnStatement(new CodePrimitiveExpression(null)));
				newType.Members.Add(method);
				
				method = new CodeMemberMethod();
				method.Name = "ToString";
				method.Attributes = MemberAttributes.Public | MemberAttributes.Override;
				method.ReturnType = new CodeTypeReference(typeof(string));
				method.Statements.Add(new CodeMethodReturnStatement(new CodePrimitiveExpression("[" + newType.Name + "]")));
				newType.Members.Add(method);
				
				prop = new CodeMemberProperty();
				prop.Name = "Null";
				prop.Type = new CodeTypeReference(ctd.Name);
				prop.Attributes = MemberAttributes.Public | MemberAttributes.Static;
				if (implementation == NullableImplementation.Shadow) {
					prop.Attributes |= MemberAttributes.New;
				}
				CodeExpression ex = new CodeTypeReferenceExpression(newType.Name);
				ex = new CodePropertyReferenceExpression(ex, "Instance");
				prop.GetStatements.Add(new CodeMethodReturnStatement(ex));
				ctd.Members.Add(prop);
			}
		}
	}
}

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About the Author

raygilbert
Web Developer
Australia Australia
No Biography provided

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Web03 | 2.8.141223.1 | Last Updated 21 Sep 2007
Article Copyright 2007 by raygilbert
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