Knowing How To Know What Function Called Function Help

Is there some sort of elite, special ops way to know what function called a function?

Meaning, I have a funciton being mysteriously called. Is there some super top secret technique to know what function is calling this function besides placing prints all over the place?


Optimism on this is low.

 

Sounds like a stacktrace.

http://msdn.microsoft.com/en-us/library/system.diagnostics.stacktrace(v=vs.85).aspx
http://stackoverflow.com/questions/171970/how-can-i-find-the-method-that-called-the-current-method

Karl

 

Thanks Karl,

Code (csharp):

1.  
2. // get calling method name
3. Console.WriteLine(stackTrace.GetFrame(1).GetMethod().Name);
4.  

The above line, where would it need to go? In each function? And would this overall be a whole script onto itself?

 

I'd assume that

Code (csharp):

1. stackTrace.GetFrame(1).GetMethod().Name

is the function that called the current function

Code (csharp):

1. stackTrace.GetFrame(0).GetMethod().Name

is the current function


Discussed here:
http://stackoverflow.com/questions/171970/how-can-i-find-the-method-that-called-the-current-method

They say it might not work outside of debugging.

Another way suggested from that thread that you might want to try:

Code (csharp):

1. public string SendError(string Message, [CallerMemberName] string callerName = "")
2. {
3.     Console.WriteLine(callerName + "called me.");
4. }

 

If you want a quick a dirty way and you're in the Editor then just throw an Exception in that method. It'll get logged, along with a stack trace, to the console.

 

Cheers, got it working thanks.

Code (csharp):

1.  
2. using UnityEngine;
3. using System.Collections;
4. using System.Diagnostics;
5.  
6.  
7. public class someScript : MonoBehaviour {
8.  
9.     StackTrace stackTrace;
10.  
11.     void someFunctionThatINeedToKnowWhoCalledIt() {
12.         stackTrace = new StackTrace();
13.         print("stackTrace !! " + stackTrace.GetFrame(1).GetMethod().Name);
14. }
15. }
16.  

This will show the originating member.

 

Hi, I have come back to this code, as above.. to trace where a method is being called from. However, in the current case, with identical code, the print to console shows only the function that it exists in.

So...

Code (csharp):

1.  
2. public void closeBubble(){
3. StackTrace stackTrace = new StackTrace();
4. print("stackTrace !! " + stackTrace.GetFrame(0).GetMethod().Name);
5. }

..only shows the closeBubble function. There is no trace of where this is being called from.


Any ideas?
Thanks

 

Like I said 2 years ago. Throw an exception.

Code (csharp):

1.  
2. public void closeBubble()
3. {
4.     throw new Exception("Dirty exception");
5. }
6.  

 

Or just Debug.Log. The stacktrace shows up in the console window when you click on the log.

 

Of course if you're looking for an IDE solution, right clicking the method and choosing Find References will give you a list of every place in your code that method is called.

 

I prefer Debug.LogError with error pause turned on. It will freeze the game state when the method is called, as well as printing a stack trace to the console.

This works too, but it won't find places where you call a method via reflection. So SendMessage, pure reflection, or UnityEvents in the inspector.

 

What are you trying to achieve?

ie: Exception occurs and you're not sure why?

If you are using Visual Studio and have the debugging setup, you can choose to view exceptions as they are thrown. Not sure what you're trying to do though, so that might not be useful

 

Thanks guys.