From: matz@... (Yukihiro Matsumoto)
Date: 2003-01-31T08:04:05+09:00
Subject: Re: Local variables & blocks

Hi,

In message "Re: Local variables & blocks"
    on 03/01/31, ahoward <ahoward@fsl.noaa.gov> writes:

|> But method-level scoping still works as before, so I don't see the problem.
|
|module M
|
|  SOME_INIT_LIST.each do |item|
|    temp = M.method_a item
|    M.method_b temp
|  end
|
|  # temp lives on in M's namespace !!!!!!!
|end
|
|include M
|
|eval 'some code which may or may not set local var temp'
|
|if defined temp
|    # something very important, but will always run because module M writer
|    # screwed up!!!!!!!!
|end

Probably you misunderstood "block local variables" either the current
one, or new one.  "module" statement always introduce a new scope, and
the scope is *not* the module's namespace.  Local variables vanishes
after the evaluation of the module body, unless they are captured by
closures.  As a consequence, "temp" does not survive after the
"module" statement.

							matz.