It doesn't matter. What happens is:
- Some other module or program uses your module.
- During its compilation, the perl compiler encounters "use Module1";
- This triggers your module to get compiled; while doing so, Module2 and Module3 will get compiled (if not already compiled). Module2->import and Module3->import will be called.
- Your module will run. First thing it does is to compile Exporter (if it hasn't been compiled already).
- Then Module1->import is called (assuming that other module or program uses "use Module1"). Which means Exporter::import is called.
- Exporter::import exports fn1 and fn2 to the calling module or program.
- Perl will resume compiling the calling module or program.
It doesn't matter where you place 'require Exporter'.
I've never understood why people use the idiom 'require Exporter'. I never do. 'use Exporter();' also compiles Exporter without calling import.
Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
Read Where should I post X? if you're not absolutely sure you're posting in the right place.
Please read these before you post! —
Posts may use any of the Perl Monks Approved HTML tags:
You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.
| & || & |
| < || < |
| > || > |
| [ || [ |
| ] || ] ||