How can I raise an exception down the stack in Ruby? -

if have function foo_1 calls foo_2, , foo_2 can raise exception want handle in foo_1. how can that?

i want write this, have deal 1 begin/rescue block:

def foo_1   begin     foo_2   rescue someexception     # stuff   end end  def foo_2   # stuff can throw someexception end 

how can pass exception foo_2?

if stack frame doesn't thrown exception, automatically propagate down next stack frame, until it's either handled or reaches bottom of stack (at point ruby interpreter handles printing out , program terminating). don't have enable behavior.

class someexception < standarderror; end  def foo_1   begin     foo_2   rescue someexception => e     "rescued #{e.message} in foo_1"   end end  def foo_2   foo_3 end  def foo_3   raise someexception.new("kaboom!") end  # > foo_1 # => "rescued kaboom! in foo_1"