Re^2: repeated use of module and EXPORT

Replies are listed 'Best First'.
Re^3: repeated use of module and EXPORT by rpelak (Sexton) on May 23, 2008 at 16:52 UTC
actually... how is compilation order determined... or do you have any good links to documentation about compilation order and such... I tried to find it, but most links where about compilers that make exe's out of your perl... Randell	[reply]
Re^4: repeated use of module and EXPORT by almut (Canon) on May 23, 2008 at 17:33 UTC
The basic description is found in perlmod: A "BEGIN" code block is executed as soon as possible, that is, the moment it is completely defined, even before the rest of the containing file (or string) is parsed. You may have multiple "BEGIN" blocks within a file (or eval'ed string) -- they will execute in order of definition. Because a "BEGIN" code block executes immediately, it can pull in definitions of subroutines and such from other files in time to be visible to the rest of the compile and run time. Once a "BEGIN" has run, it is immediately undefined and any code it used is returned to Perl's memory pool. Also note that `use` has an implicit BEGIN block around it.	[reply] [d/l]
Re^5: repeated use of module and EXPORT by rpelak (Sexton) on May 23, 2008 at 19:47 UTC
Yeah I saw that text on the perlmod. But I didn't know that use was implicitly a BEGIN... so that makes more sense... But anyone have any links to a more indepth write up of how the compiler works, like how it chooses what to compile first and all that...	[reply]
Re^6: repeated use of module and EXPORT by shmem (Chancellor) on May 23, 2008 at 20:34 UTC
Re^7: repeated use of module and EXPORT by rpelak (Sexton) on May 23, 2008 at 23:08 UTC
Some notes below your chosen depth have not been shown here