1Devel::GlobalPhase(3) User Contributed Perl DocumentationDevel::GlobalPhase(3)
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6 Devel::GlobalPhase - Detect perl's global phase on older perls.
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9 use Devel::GlobalPhase;
10 print global_phase; # RUN
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12 use Devel::GlobalPhase -var;
13 print ${^GLOBAL_PHASE}; # RUN
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16 This gives access to ${^GLOBAL_PHASE} in versions of perl that don't
17 provide it. The built in variable will be used if it is available.
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19 If all that is needed is detecting global destruction,
20 Devel::GlobalDestruction should be used instead of this module.
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23 global_phase
24 Returns the global phase either from "${^GLOBAL_PHASE}" or by
25 calculating it.
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28 -var
29 If this option is specified on import, the global variable
30 "${^GLOBAL_PHASE}" will be created if it doesn't exist, emulating the
31 built in variable from newer perls.
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34 • There are tricks that can be played with B or XS that would fool
35 this module for the INIT and END phase.
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37 • During an "END {}" block created at runtime after this module is
38 loaded, the phase may be reported as "RUN". While this could be
39 made more accurate, it would slow down the module significantly
40 during the RUN phase, and has the potential to segfault perl.
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43 haarg - Graham Knop (cpan:HAARG) <haarg@haarg.org>
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45 CONTRIBUTORS
46 Uses some code taken from Devel::GlobalDestruction.
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49 Copyright (c) 2013 the Devel::GlobalPhase "AUTHOR" and "CONTRIBUTORS"
50 as listed above.
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53 This library is free software and may be distributed under the same
54 terms as perl itself.
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58perl v5.38.0 2023-07-20 Devel::GlobalPhase(3)