but the more correct way is to think of run-time and compile-time as a per-block thing.

Quite so, ++ (Per-statement, even, in the case of use.) 

print("first");
BEGIN {
  delete $INC{'ModX.pm'};
  use lib '../';
  use ModX;
}
print("last");

[download]

gets executed in the following order 

use lib '../';           # Before "delete" because of "use"
use ModX;                # Before "delete" because of "use"
delete $INC{'ModX.pm'};  # Before "first" because of "BEGIN"
print("first");
print("last");

[download]

In detail:

  1. Compile print("first");.
  2. Compile BEGIN { ... }.
    1. Compile delete $INC{'ModX.pm'};.
    2. Compile use lib '../';.
    3. Execute use lib '../';.
    4. Compile use ModX;.
    5. Execute use ModX;.
  3. Execute BEGIN { ... }.
    1. Execute delete $INC{'ModX.pm'};.
  4. Compile print("last");.
  5. "Run phase" starts.
  6. Execute print("first");.
  7. Execute print("last");.

In reply to Re^3: BEGIN and compile-time by ikegami
in thread BEGIN and compile-time by jbert

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • 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:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, 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, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.