Beefy Boxes and Bandwidth Generously Provided by pair Networks
No such thing as a small change
 
PerlMonks  

Re^3: How do I import a global variable form a package with require?

by choroba (Archbishop)
on Jul 22, 2021 at 14:05 UTC ( #11135296=note: print w/replies, xml ) Need Help??


in reply to Re^2: How do I import a global variable form a package with require?
in thread How do I import a global variable form a package with require?

> what if I want to only import $var at runtime?

What does it mean? If you have code that will be compiled at runtime, it works:

require A; A->import('$var'); eval 'print $var; 1' or warn $@;

> why sub1 imports just fine with require and $var doesn't

Strict checks that variables are declared before you use them. It doesn't check subs when it's sure it's a sub, i.e. when parentheses follow the sub name. Try using sub1 without parentheses: the compiler will only see a bareword, not a sub call, and will complain.

Update: reworded.

map{substr$_->[0],$_->[1]||0,1}[\*||{},3],[[]],[ref qr-1,-,-1],[{}],[sub{}^*ARGV,3]

Replies are listed 'Best First'.
Re^4: How do I import a global variable form a package with require?
by nysus (Parson) on Jul 22, 2021 at 14:18 UTC

    OK, that helps clear things up. Thanks for your help!

    $PM = "Perl Monk's";
    $MCF = "Most Clueless Friar Abbot Bishop Pontiff Deacon Curate Priest Vicar";
    $nysus = $PM . ' ' . $MCF;
    Click here if you love Perl Monks

Log In?
Username:
Password:

What's my password?
Create A New User
Domain Nodelet?
Node Status?
node history
Node Type: note [id://11135296]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others romping around the Monastery: (3)
As of 2021-11-30 15:31 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    No recent polls found

    Notices?