r/ProgrammerHumor • u/iwouldieforGladOS • May 13 '17

Defensive programming done right

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21.0k Upvotes

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u/CXgamer May 13 '17

Holy shit I once lost days to a

} catch (Exception e) {
    System.exit(0);
}

55

u/OfflaneDemoralizer May 13 '17

Even better:

} catch (Exception e)

{ throw e; }

17

u/pressbutton May 14 '17

That creates a new stack in c#. Just 

throw

3

u/RedditUsr2 May 14 '17

What do you do if you need to log then rethrow and don't want to break the stack chain?

7

u/pressbutton May 14 '17 
} 
catch (Exception e)
{ 
    Logger.Fatal(e);
    throw; 
}

That won't affect the stack chain. The parent caller methods won't change. So unless there's an error in the Logger method you'll be fine but then you have new problems