How to access Bar in Foo when Foo::Bar exists?

ruby-talk
1

Hi,
I can’t figure out how to:

class Foo
class Bar << RuntimeError; end

def something
begin
# …
rescue Bar # i want Bar, not Foo::Bar
raise Bar # i want Foo::Bar, correct.
end
end
end

Does anyone have idea how to do that?
(IIRC, In c++ this is done via “::” operator)

Best regards,
Michal

···

–

Michal Safranek, email:

a=((“a”…“z”).to_a+["@","."]);p(("%b"%[0x645bbb83a6a496]
).scan(/…/).map{|x|a[Integer(“0b”+x)]}.join.reverse)

2

Wejn wrote:

Hi,
I can’t figure out how to:

class Foo
class Bar << RuntimeError; end

def something
begin
# …
rescue Bar # i want Bar, not Foo::Bar
raise Bar # i want Foo::Bar, correct.
end
end
end

Does anyone have idea how to do that?
(IIRC, In c++ this is done via “::” operator)

(trying to avoid puns about raising the bar…)

Ruby also has a :: operator:

begin
class Bar < SyntaxError; end
class Foo
class Bar < RuntimeError; end

 def something
   begin
     yield
   rescue ::Bar # i want Bar, not Foo::Bar
     raise Bar # i want Foo::Bar, correct.
   end
 end

end
Foo.new.something do raise Bar; end
rescue Exception => e
p e.class # => Foo::Bar
end

3

Ick!

1000.times { puts “I will think about the problem (and experiment in” +
" irb) before asking dumb questions." }

Thanks a lot :slight_smile:

Michal

···

–

Michal Safranek, email:

a=((“a”…“z”).to_a+["@","."]);p(("%b"%[0x645bbb83a6a496]
).scan(/…/).map{|x|a[Integer(“0b”+x)]}.join.reverse)