From: gabriele renzi <rff_rff@...>
Date: 2004-09-14T20:14:57+09:00
Subject: Re: Catching undefined global variable errors

George Moschovitis ha scritto:

> Sorry everyone,
> 
> my example was wrong, THIS is the surprising code:
> 
> $the_key = "key1"
> 
> a = { "key1" => 1, "key2" => 2}
> 
> unless a[$the_ley] # orthographic error !!!
> # ruby doesnt catch this error
> puts "SURPRISE!!"
> end
> 
> the orthographic error is in the variable. Shouldnt this be catched by
> the interpreter ? Any ideas ?
> 

I see what you're saying.
I think when globals or instance variables are acessed but not yet 
initialized they should raise and exception, instead of assuming a nil 
value. At least there should be some kind of global switch to allow 
this, something like $EXPLICIT_VARIABLES.