c# aot try-catch not work

Dan Yang 0

I used c# aot to compile lib for go use.

An exception occurs in lib and the process crashes.

I hope the process doesn't crash and that bugs can be reported.

How can I keep the process from crashing.

If it crashes, is there any way to find the location of the crash?

    [UnmanagedCallersOnly(EntryPoint = "NativeTest")]
    public static void NativeTest()
    {
			try 
			{     
				List<int> ints = new List<int>();     
				ints = null;     
				ints[0] = 110; 
			} 
			catch (System.Exception e) 
			{     
				Log.Info(e.ToString()); 
			}
    }

Minxin Yu 11,751 Reputation points Microsoft Vendor

2023-09-20T09:54:36.5633333+00:00
Hi, @Dan Yang

ints[0] attempted to access a list element on a null reference.

Modified:

List<int> ints = new List<int>(); ints.Add(11);// add one element, value 11. ints[0] = 110;//change value

In C# project, I am able to catch the exception.

Currently, Q&A does not support GO language. You need to go to GO related forums for help.

Dan Yang 0

[UnmanagedCallersOnly(EntryPoint = "NativeTest")]     
public static void NativeTest()     
{ 			
		try  			
		{      				
			List<int> ints = new List<int>();      				
			ints = null; //  I purposely created an Exception 
			ints[0] = 110;  			
		}  			
		catch (System.Exception e)  			
		{      				
			Log.Info(e.ToString());  			
		}     
}

Thank you for response.

I understand is that calling the NativeTest function outputs an exception, including some stack information,but I didn't find any logs

ps: I use AOT compilation. This lib I provide for go language calls via c

Dan Yang 0 Reputation points

2023-09-20T10:13:12.35+00:00

I bridged it via c language
Minxin Yu 11,751 Reputation points Microsoft Vendor

2023-09-20T11:30:35.2933333+00:00

If running the lib in C, can you catch the exceptions?
Dan Yang 0 Reputation points

2023-09-21T02:04:22.5433333+00:00

I want the exception to be handled in the lib, I don't want to throw it out and crash it
Minxin Yu 11,751 Reputation points Microsoft Vendor

2023-09-21T06:16:45.1233333+00:00

I reproduced the problem in GO.

Since the problem occurred in GO, you need to go to GO related forums for help.
Dan Yang 0 Reputation points

2023-09-22T01:28:31.0766667+00:00

My use of this way may be difficult to find a solution!

Hi, I have another question for you. If the lib crashes, is there any way I can find the crash point?

At present, I provide the lib library to go language as a tool library to use.

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