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CodeDom Assistant

, 21 Sep 2007 82.5K 5K 76
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: 2615 $</version>
// </file>

using System;
using System.Collections.Generic;
using ICSharpCode.NRefactory.Ast;

namespace ICSharpCode.NRefactory.PrettyPrinter
{
	public class SpecialOutputVisitor : ISpecialVisitor
	{
		IOutputFormatter formatter;
		
		public SpecialOutputVisitor(IOutputFormatter formatter)
		{
			this.formatter = formatter;
		}
		
		public bool ForceWriteInPreviousLine;
		
		public object Visit(ISpecial special, object data)
		{
			Console.WriteLine("Warning: SpecialOutputVisitor.Visit(ISpecial) called with " + special);
			return data;
		}
		
		public object Visit(BlankLine special, object data)
		{
			formatter.PrintBlankLine(ForceWriteInPreviousLine);
			return data;
		}
		
		public object Visit(Comment special, object data)
		{
			formatter.PrintComment(special, ForceWriteInPreviousLine);
			return data;
		}
		
		public object Visit(PreprocessingDirective special, object data)
		{
			formatter.PrintPreprocessingDirective(special, ForceWriteInPreviousLine);
			return data;
		}
	}
	
	/// <summary>
	/// This class inserts specials between INodes.
	/// </summary>
	public sealed class SpecialNodesInserter : IDisposable
	{
		IEnumerator<ISpecial> enumerator;
		SpecialOutputVisitor visitor;
		bool available; // true when more specials are available
		
		public SpecialNodesInserter(IEnumerable<ISpecial> specials, SpecialOutputVisitor visitor)
		{
			if (specials == null) throw new ArgumentNullException("specials");
			if (visitor == null) throw new ArgumentNullException("visitor");
			enumerator = specials.GetEnumerator();
			this.visitor = visitor;
			available = enumerator.MoveNext();
		}
		
		void WriteCurrent()
		{
			enumerator.Current.AcceptVisitor(visitor, null);
			available = enumerator.MoveNext();
		}
		
		AttributedNode currentAttributedNode;
		
		/// <summary>
		/// Writes all specials up to the start position of the node.
		/// </summary>
		public void AcceptNodeStart(INode node)
		{
			if (node is AttributedNode) {
				currentAttributedNode = node as AttributedNode;
				if (currentAttributedNode.Attributes.Count == 0) {
					AcceptPoint(node.StartLocation);
					currentAttributedNode = null;
				}
			} else {
				AcceptPoint(node.StartLocation);
			}
		}
		
		/// <summary>
		/// Writes all specials up to the end position of the node.
		/// </summary>
		public void AcceptNodeEnd(INode node)
		{
			visitor.ForceWriteInPreviousLine = true;
			AcceptPoint(node.EndLocation);
			visitor.ForceWriteInPreviousLine = false;
			if (currentAttributedNode != null) {
				if (node == currentAttributedNode.Attributes[currentAttributedNode.Attributes.Count - 1]) {
					AcceptPoint(currentAttributedNode.StartLocation);
					currentAttributedNode = null;
				}
			}
		}
		
		/// <summary>
		/// Writes all specials up to the specified location.
		/// </summary>
		public void AcceptPoint(Location loc)
		{
			while (available && enumerator.Current.StartPosition <= loc) {
				WriteCurrent();
			}
		}
		
		/// <summary>
		/// Outputs all missing specials to the writer.
		/// </summary>
		public void Finish()
		{
			while (available) {
				WriteCurrent();
			}
		}
		
		void IDisposable.Dispose()
		{
			Finish();
		}
		
		/// <summary>
		/// Registers a new SpecialNodesInserter with the output visitor.
		/// Make sure to call Finish() (or Dispose()) on the returned SpecialNodesInserter
		/// when the output is finished.
		/// </summary>
		public static SpecialNodesInserter Install(IEnumerable<ISpecial> specials, IOutputAstVisitor outputVisitor)
		{
			SpecialNodesInserter sni = new SpecialNodesInserter(specials, new SpecialOutputVisitor(outputVisitor.OutputFormatter));
			outputVisitor.NodeTracker.NodeVisiting += sni.AcceptNodeStart;
			outputVisitor.NodeTracker.NodeVisited  += sni.AcceptNodeEnd;
			return sni;
		}
	}
}

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About the Author

raygilbert
Web Developer
Australia Australia
No Biography provided

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