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### !!!ACHTUNG!!! # # This module is to be loaded at configure time straight from the Makefile.PL # in order to get access to some of the constants / utils # None of the dependencies will be available yet at this point, so make # sure to never use anything beyond what the minimum supported perl came with # (no, relying on configure_requires is not ok) package # hide from the pauses namespace::clean::_Util; use warnings; use strict; use base 'Exporter'; our @EXPORT_OK = qw( DEBUGGER_NEEDS_CV_RENAME DEBUGGER_NEEDS_CV_PIVOT ); use constant DEBUGGER_NEEDS_CV_RENAME => ( ( "$]" > 5.008_008 ) and ( "$]" < 5.013_006 ) ); use constant DEBUGGER_NEEDS_CV_PIVOT => ( ( ! DEBUGGER_NEEDS_CV_RENAME ) and ( "$]" < 5.015_005 ) ); # FIXME - ideally this needs to be provided by some abstraction lib # but we don't have that yet BEGIN { # # Note - both get_subname and set_subname are only called by one block # which is compiled away unless CV_RENAME is true ( the 5.8.9 ~ 5.12 range ). # Hence we compile/provide the definitions here only when needed # DEBUGGER_NEEDS_CV_RENAME and ( eval <<'EOS' or die $@ ); { my( $sub_name_loaded, $sub_util_loaded ); sub _namer_load_error { return '' if $sub_util_loaded or $sub_name_loaded; # if S::N is loaded first *and* so is B - then go with that, otherwise # prefer Sub::Util as S::U will provide a faster get_subname and will # not need further require() calls # this is rather arbitrary but remember this code exists only perls # between 5.8.9 ~ 5.13.5 # when changing version also change in Makefile.PL my $sn_ver = 0.04; local $@; my $err = ''; ( ! ( $INC{"B.pm"} and $INC{"Sub/Name.pm"} and eval { Sub::Name->VERSION($sn_ver) } ) and eval { require Sub::Util } and # see https://github.com/moose/Moo/commit/dafa5118 defined &Sub::Util::set_subname and $sub_util_loaded = 1 ) or ( eval { require Sub::Name and Sub::Name->VERSION($sn_ver) } and $sub_name_loaded = 1 ) or $err = "When running under -d on this perl $], namespace::clean requires either Sub::Name $sn_ver or Sub::Util to be installed" ; $err; } sub set_subname { if( my $err = _namer_load_error() ) { die $err; } elsif( $sub_name_loaded ) { &Sub::Name::subname; } elsif( $sub_util_loaded ) { &Sub::Util::set_subname; } else { die "How the fuck did we get here? Read source and debug please!"; } } sub get_subname { if( _namer_load_error() or ! $sub_util_loaded ) { require B; my $gv = B::svref_2object( $_[0] )->GV; join '::', $gv->STASH->NAME, $gv->NAME; } else { &Sub::Util::subname; } } } 1; EOS } 1;