Hyperlambda exceptions

Exceptions in Hyperlambda are similar to exceptions in traditional programming languages, and are basically a mechanism to raise errors in such a way that the stack is completely rewinded, to the point in your code where you want to handle error conditions. This allows you to “ignore” errors occurring in all places, except a single point in your code, from where you want to handle said exceptions. Below is some example Hyperlambda code illustrating how to use exceptions.

try
   throw:Whatever

.catch
   log.info:ERROR HAPPENED!! 42, 42, 42!

.finally
   log.info:Yup, we are finally there!

Like most modern programming languages, Hyperlambda supports both try, catch and finally. However, the catch is referenced as [.catch] and the finally block is referenced as [.finally].

try - This slot allows you to create a try/catch/finally block in Hyperlambda, from where exceptions are caught, and optionally handled in a [.catch] lambda, and/or a [.finally] lambda.
throw - This slot simply throws an exception, with the exception message taken from its value.