RE: Re: function encapsulation

more points:

'use' happens when the script is compiled
'require' happens as the script runs

So, if you make any changes to @INC, it won't effect any of the 'use' statements, but it will the 'require's.
Also, if you 'perl -c' the script, the '.pm's that were 'use'd in will be checked for sytax, the ones that were 'require'd in won't be.

/\/\averick

Comment on RE: Re: function encapsulation

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RE: RE: Re: function encapsulation by davorg (Chancellor) on Jul 13, 2000 at 19:43 UTC
That's not to say that you can't make changes to @INC which will affect 'use' statements. Two ways that spring to mind are: Put the code that changes @INC in a BEGIN block. Use `use lib;` -- <http://www.dave.org.uk> European Perl Conference - Sept 22/24 2000, ICA, London <http://www.yapc.org/Europe/>	[reply]
RE: RE: RE: Re: function encapsulation by maverick (Curate) on Jul 13, 2000 at 19:54 UTC
True. You can also put the 'require's inside a BEGIN block and get their syntax checked by perl -c. I'm sure there's more examples we can think of... /\/\averick	[reply]
RE: RE: Re: function encapsulation by Buckaroo Buddha (Scribe) on Jul 20, 2000 at 17:41 UTC
then this raises an interesting question (for me at least) i should probably test this myself (and probably will but love discussion ... and have a deadline breathing down my neck ;) if i make a function, and encapsulate it in a file, then make calls to that function from a script which had been compiled using perl2exe... would the whole program still work? could i change the required and encapsulated function as needed? is this the basic concept behind a DLL file in windows? or are there more to them? i've not got a lot comp-sci so i'm trying to pick up advanced topics in programming on the fly, while simultaniously learning the basics i'd love some help me in gaining a deeper understanding of the whole system we're working in	[reply]