Get current filename of .cs

[Tarmo Pikaro]

Hi !

I was looking for analogue of __FILE__ in C++, and found that for C# it's 

            string fileName=new System.Diagnostics.StackTrace(true).GetFrame(0).GetFileName();

But c# scripter returns null for fileName.

Is there any other way for C# scripter ?

My target is to get self modifying code I guess...  :-)

[Oleg Shilo]

You can use the code below for from the script assembly:

var scriptFile = Assembly.GetExecutingAssembly()
                         .GetCustomAttributes(typeof(AssemblyDescriptionAttribute), true)


                         .Cast<AssemblyDescriptionAttribute>()
                         .First()
                         .Description;

The full description is her:  http://www.csscript.net/help/Environment.html 

[Tarmo Pikaro]

Hi !

Ok, this seems to work, however - only for main module.

If I have coombination like: 

hello.cs, which calls

hello2.cs 

In hello2.cs I can get only hello.cs name. I've used all methods used in ReflectScript.cs.

[Tarmo Pikaro]

Hmmm...

Furthermore - I still miss System.Diagnostics.StackTrace - since it's possible that I have some failed test case, and need to report file name and line number.

How difficult it's to add such support ?

[Oleg Shilo]

As per my previous post  System.Diagnostics.StackTrace provided not by CS-Script but by CLR thus it is already (and always) available.

[Tarmo Pikaro]

Could you write a simple example of one script loading another script with stacktrace functional ?

I've understood that it's possible -  by modifying Samples\Hosting\Debugging.cs - but what if I wanted to have

starter.cs / static Main - works without filename/line info

main.cs / static Main - works with filename/line info

You're proposed to use CSScript.Load - and I have tried to write something like:

using System;

using CSScriptLibrary;

public class Host

{

    static void Main(string[] args)

    {

        try{

            new AsmHelper(CSScript.Load("main.cs", null, true)).GetStaticMethod().Invoke(args);

        }catch(Exception ex)

        {

            Console.WriteLine(ex.Message);

        }

    }

}

But it does not work  - exception "Index was outside the bounds of the array."

[Oleg Shilo]

> But it does not work  - exception "Index was outside the bounds of the array." 

Cannot comment as I do not know the main.cs content. 

Here the sample you are asking for: https://dl.dropbox.com/u/45608909/Support/Tarmo%20Pikaro/Tarmo%20Pikaro.7z

It prints the stack info for both first.cs and second.cs. Except lambdas of course.

[Tarmo Pikaro]

Hi !

Thanks, it looks like one step forward.

But it's so typical of me to shorten code - so I've tried to restart code using recursive function call to scripting library itself - like this:

using CSScriptLibrary;

using System;

using System.Windows.Forms;

using System.Linq;                      //.Cast

using System.Diagnostics;               //StackFrame

using System.Reflection;               

class Script

{

[STAThread]

static public void Main(string[] args)

{

        StackFrame sf = new System.Diagnostics.StackTrace(true).GetFrame(0);

        if( sf.GetFileName() == null )

        {

            // http://www.csscript.net/help/Environment.html

            String fileName = Assembly.GetExecutingAssembly()

                    .GetCustomAttributes(typeof(AssemblyDescriptionAttribute), true)

                    .Cast<System.Reflection.AssemblyDescriptionAttribute>().First().Description;

            Console.WriteLine("Restarting '" + fileName + "'");

            var Method = CSScript.Load(fileName, null, true).GetStaticMethod();

            Method();

        }

        Console.WriteLine( sf.GetFileName() + "(" + sf.GetFileLineNumber() + "): Stack frame available"  );

}

}

Concludes in exception:

Restarting 'C:\Projects\TestSuite\css\host.cs'

Error: Specified file could not be executed.

System.UnauthorizedAccessException: Access to the path 'C:\Users\<login>\AppData\Local\Temp\CSSCRIPT\Cache\1818316916\host.cs.compiled' is denied.

   at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)

   at System.IO.File.Delete(String path)

   at csscript.CSExecutor.Compile(String scriptFileName)

   at csscript.CSExecutor.Compile(String scriptFile, String assemblyFile, Boolean debugBuild)

   at CSScriptLibrary.CSScript.LoadWithConfig(String scriptFile, String assemblyFile, Boolean debugBuild, Settings scriptSettings, String compilerOptions, String[] refAssemblies)

   at CSScriptLibrary.CSScript.Load(String scriptFile, String assemblyFile, Boolean debugBuild, String[] refAssemblies)

   at Script.Main(String[] args)

I could help you fixing it if you want, you need to tell me bit more details. :-)

[Oleg Shilo]

The problem is caused by the fact that you are trying to er-start the script while it is still loaded (locked) in the memory.

The easier solution would be to obtain the host script assembly (Assembly.GetExecutingAssembly()) and execute it not as a script but as an assembly (AppDomain.Execute(assembly)). 

Alternatively, if it is important to execute the script as a script, you may want to avoid the compiled script naming collisions by manually allocating the names. 

CSScript.Load(fileName, <the absolutely unique file name>, true).GetStaticMethod(); 

On Tue, Nov 27, 2012 at 7:07 AM, Tarmo Pikaro <tap...@yahoo.com> wrote:

rojects\TestSuite\css\host.cs'