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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
using System;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.Text;
using System.CodeDom;
using System.CodeDom.Compiler;
using System.Runtime.Remoting;
using System.IO;
using Microsoft.CSharp;

namespace CodeDomAssistant
{
    /// <summary>
    /// Execute a CSharp Code Snippet and return results
    /// </summary>
    public class CSharpSnippet
    {
        List<string> assemblies = new List<string>();
        List<string> namespaces = new List<string>();
        CompilerParameters parameters = new CompilerParameters();
        string codesnippet = string.Empty;

        public CSharpSnippet(string codesnippet)
        {
            this.codesnippet = codesnippet;

            parameters.ReferencedAssemblies.Add("System.dll");
            parameters.ReferencedAssemblies.Add("RemoteLoader.dll");

            namespaces.Add("System");
            namespaces.Add("System.Reflection");
            namespaces.Add("RemoteLoader");
        }

        /// <summary>
        /// List of Referenced Assemblies Needed To Run Snippet
        /// </summary>
        public StringCollection ReferencedAssemblies
        {
            get { return parameters.ReferencedAssemblies; }
        }

        /// <summary>
        /// List of Namespaces
        /// </summary>
        public List<string> Namespaces
        {
            get { return namespaces; }
        }

        /// <summary>
        /// Execute Snippet Method
        /// </summary>
        /// <param name="method"></param>
        /// <param name="args"></param>
        /// <returns></returns>
        public object Execute(string method, params object[] args)
        {
            object results = null;

            AppDomain appdomain = null;
            string script_assembly = "script_" + Guid.NewGuid().ToString();

            try
            {
                // Build Assembly Code
                StringBuilder sb = new StringBuilder();
                StringWriter sw = new StringWriter(sb);

                foreach (string ns in this.namespaces)                {
                    sw.WriteLine("using " + ns + ";");
                }

                sw.WriteLine();
                sw.WriteLine("namespace CodeDomAssistant.Script {");
                sw.WriteLine("    // Encapsulate Code Snippet Script");
                sw.WriteLine("    public class CodeSnippet : MarshalByRefObject, IRemoteInterface {");
                sw.WriteLine("        // Invoke Method Through IRemoteInterface");
                sw.WriteLine("        public object Invoke(string method, object[] parms) {");
                sw.WriteLine("            return this.GetType().InvokeMember(method, BindingFlags.InvokeMethod, null, this, parms);");
                sw.WriteLine("        }");
                sw.WriteLine();
                sw.WriteLine(codesnippet);
                sw.WriteLine("    }");
                sw.WriteLine("}");
                sw.Flush();
                sw.Close();

                // compile code snippet into assembly
                parameters.OutputAssembly = script_assembly + ".dll";

                CSharpCodeProvider provider = new CSharpCodeProvider();

                provider.CompileAssemblyFromSource(parameters, sb.ToString());

                // run snippet in its own AppDomain
                AppDomainSetup setup = new AppDomainSetup();
                setup.ApplicationBase = AppDomain.CurrentDomain.BaseDirectory;

                appdomain = AppDomain.CreateDomain("Scripting", null, setup);
  
                ObjectHandle handle = appdomain.CreateInstance("RemoteLoader", "RemoteLoader.RemoteLoaderFactory");

                RemoteLoader.RemoteLoaderFactory factory = (RemoteLoader.RemoteLoaderFactory)handle.Unwrap();

                RemoteLoader.IRemoteInterface objSnippet = factory.Create(script_assembly + ".dll", "CodeDomAssistant.Script.CodeSnippet", null);

                results = objSnippet.Invoke(method, args);
            }
            finally
            {
                if (appdomain != null)
                {
                    AppDomain.Unload(appdomain);
                }

                if (File.Exists(script_assembly + ".dll"))
                {
                    File.Delete(script_assembly + ".dll");
                }
            }

            return results;
        }
    }
}

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About the Author

raygilbert
Web Developer
Australia Australia
No Biography provided

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Web02 | 2.8.140721.1 | Last Updated 21 Sep 2007
Article Copyright 2007 by raygilbert
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