Re: Module Readonly

in reply to Module Readonly

Could you elaborate on the scoping problems use constant has? I didn't find a hint via quick googling or in its pod.

Just curious...

regards,
tomte

An intellectual is someone whose mind watches itself.
-- Albert Camus

Comment on Re: Module Readonly

Replies are listed 'Best First'.
Re: Re: Module Readonly by hardburn (Abbot) on Apr 23, 2004 at 13:16 UTC
`constant` creates a subroutine, which in Perl5 is global to the package. You can fake lexically-scoped subroutines by putting them in a variable (`my $sub = sub { . . . };`), but that doesn't really help with constants since you can still change the variable that holds the sub ref. ---- `: () { :\|:& };:` Note: All code is untested, unless otherwise stated	[reply] [d/l] [select]
Re: Re: Module Readonly by Anonymous Monk on Apr 23, 2004 at 14:53 UTC
The author of Readonly elaborates in search.cpan.org/~roode/Readonly-1.03/Readonly.pm -- section "COMPARISON WITH "use constant".	[reply]
Re: Re: Re: Module Readonly by ysth (Canon) on Apr 23, 2004 at 18:29 UTC
? The only mention I see there of scoping is a mention that "use constant" constants are global, not lexically scoped. How is that a problem?	[reply]

In Section Seekers of Perl Wisdom