C#•3mo ago

✅ Throw error without showing the call stack

Hey, so I'm working on a toy compiler and I want to throw errors when compiler detects some issues thats how it currently looks: (look at the screenshot) And thats the code:

public class CustomException : Exception
{
    public CustomException(string message) : base(message) { }
}

public class ErrorHandler
{
    public static void Custom(string message)
    {
        throw new CustomException(message);
    }

    public static void Expected(string message, int line) 
    {
        throw new CustomException($"[{line}] Expected '{message}'!");
    }
}

public class CustomException : Exception
{
    public CustomException(string message) : base(message) { }
}

public class ErrorHandler
{
    public static void Custom(string message)
    {
        throw new CustomException(message);
    }

    public static void Expected(string message, int line) 
    {
        throw new CustomException($"[{line}] Expected '{message}'!");
    }
}

What I want to do is only print the message and stop the program. I don't want to print Unhlandled exception or this call stack:

at ils.ErrorHandler.Custom(String message) in C:\Projects\ils.ils\ils\ErrorHandler.cs:line 18
   at ils.Verificator.VariableDuplicates(ASTScope scope) in C:\Projects\ils.ils\ils\Verificator.cs:line 34
   at ils.Verificator.Verify(ASTScope mainScope) in C:\Projects\ils.ils\ils\Verificator.cs:line 13
   at ILS.Main(String[] args) in C:\Projects\ils.ils\ils\ils.cs:line 33

at ils.ErrorHandler.Custom(String message) in C:\Projects\ils.ils\ils\ErrorHandler.cs:line 18
   at ils.Verificator.VariableDuplicates(ASTScope scope) in C:\Projects\ils.ils\ils\Verificator.cs:line 34
   at ils.Verificator.Verify(ASTScope mainScope) in C:\Projects\ils.ils\ils\Verificator.cs:line 13
   at ILS.Main(String[] args) in C:\Projects\ils.ils\ils\ils.cs:line 33

1 Reply

Theos•3mo ago

How can this be achieved? okay, I just remembered that Environment.Exit exists...

private static void Log(string message)
{
    Console.WriteLine($"\n{message}");
    Environment.Exit(-1);
}

public static void Custom(string message)
{
    Log(message);
}

public static void Expected(string message, int line) 
{
    Log($"[{line}] Expected '{message}'!");
}

private static void Log(string message)
{
    Console.WriteLine($"\n{message}");
    Environment.Exit(-1);
}

public static void Custom(string message)
{
    Log(message);
}

public static void Expected(string message, int line) 
{
    Log($"[{line}] Expected '{message}'!");
}

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Programming

✅ Throw error without showing the call stack