CODEWITHSUNDEEP
rubyexception
lucas clemente
lucas clemente

Reputation: 6409

Re-raise ruby exception from different place

How do I make the exception reraised from bar in the last line look like it came from there, and not from the block? I want to see bar in the backtrace.

begin
  raise "foo"
rescue => e # yeah, i know
  $e = e # oh boy, globals
end

sleep 1 # again, i know

def bar
  raise $e
end

bar # => test.rb:2:in `<main>': foo (RuntimeError)

Edit:

The current backtrace is

test.rb:2:in `<main>': foo (RuntimeError)

what I want is (or sth similar)

test.rb:10:in `bar': foo (RuntimeError)
from test.rb:13:in `<main>'

Upvotes: 4

Views: 678

Answers (2)

BroiSatse
BroiSatse

Reputation: 44725

I am not sure if that's what you want, but you can try:

begin
  raise "foo"
rescue => e
  $e = e
end

sleep 1 

def get_full_stack
  caller
end

def bar
  exception = $e.dup
  exception.set_backtrace get_full_stack   
  raise exception
end

Upvotes: 1

Bala
Bala

Reputation: 11274

I am not sure if this is the correct answer. But I decided to give it a go :-)

begin
  raise "foo"
rescue => e
   $e = e
end

sleep 1 

def bar    
  raise $e.class, "bar"
end

bar #=> test.rb:10:in `bar': bar (RuntimeError)
    from test.rb:13:in `<main>'

Second try

begin
  ...
end

sleep 1 

def bar  
  $e.set_backtrace(["bar"])    
  raise $e
end

bar #=> bar: foo (RuntimeError)

Upvotes: 1

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