[BUG?] Fun with aliases

[Florian Gross]

Moin!

Just thought I'd mention this:

C:\>ruby
alias $! $foo; $foo = 5; begin; raise "foo"; rescue => err; p err; end
^D
5

However:

C:\>ruby
alias $! $foo; $foo = 5; begin; raise "foo"; rescue Fixnum => err; p
err; end
^D
-:1: foo (RuntimeError)

I'm using ruby 1.8.1 (2003-12-25) [i386-mswin32] and I'm able to
reproduce the same behavior with ruby 1.8.0 (2003-08-04) [i686-linux-gnu].

Which means Ruby still knowns which exception was really raised, but
misrepresents it in case you're rescuing it to a variable.

I couldn't produce any crashes or other weird things by aliasing any
other global variables, by the way.

Regards,
Florian Gross

 

[Yukihiro Matsumoto]

Hi,

In message "[BUG?] Fun with aliases"

|Just thought I'd mention this:
|
|C:\>ruby
|alias $! $foo; $foo = 5; begin; raise "foo"; rescue => err; p err; end
|^D
|5

Don't use variable aliasing, especially to replace special variable. ;-)
I will fix this soon anyway.

matz.