1 ˆÁÀ ƒh¹¿¾MAJOR=5 MINOR=0 DEVNAME=tty DEVMODE=0666 1ˆl—Ðz¾”Êe¶…6 ¸ÛWyLZ7ÿÁ „p?_‹uÐb &=LV[(ÁÀ*Ñuse 5.008; package base; use strict 'vars'; our $VERSION = '2.27'; $VERSION =~ tr/_//d; # simplest way to avoid indexing of the package: no package statement sub base::__inc::unhook { @INC = grep !(ref eq 'CODE' && $_ == $_[0]), @INC } # instance is blessed array of coderefs to be removed from @INC at scope exit sub base::__inc::scope_guard::DESTROY { base::__inc::unhook $_ for @{$_[0]} } # constant.pm is slow sub SUCCESS () { 1 } sub PUBLIC () { 2**0 } sub PRIVATE () { 2**1 } sub INHERITED () { 2**2 } sub PROTECTED () { 2**3 } my $Fattr = \%fields::attr; sub has_fields { my($base) = shift; my $fglob = ${"$base\::"}{FIELDS}; return( ($fglob && 'GLOB' eq ref($fglob) && *$fglob{HASH}) ? 1 : 0 ); } sub has_attr { my($proto) = shift; my($class) = ref $proto || $proto; return exists $Fattr->{$class}; } sub get_attr { $Fattr->{$_[0]} = [1] unless $Fattr->{$_[0]}; return $Fattr->{$_[0]}; } if ($] < 5.009) { *get_fields = sub { # Shut up a possible typo warning. () = \%{$_[0].'::FIELDS'}; my $f = \%{$_[0].'::FIELDS'}; # should be centralized in fields? perhaps # fields::mk_FIELDS_be_OK. Peh. As long as %{ $package . '::FIELDS' } # is used here anyway, it doesn't matter. bless $f, 'pseudohash' if (ref($f) ne 'pseudohash'); return $f; } } else { *get_fields = sub { # Shut up a possible typo warning. () = \%{$_[0].'::FIELDS'}; return \%{$_[0].'::FIELDS'}; } } if ($] < 5.008) { *_module_to_filename = sub { (my $fn = $_[0]) =~ s!::!/!g; $fn .= '.pm'; return $fn; } } else { *_module_to_filename = sub { (my $fn = $_[0]) =~ s!::!/!g; $fn .= '.pm'; utf8::encode($fn); return $fn; } } sub import { my $class = shift; return SUCCESS unless @_; # List of base classes from which we will inherit %FIELDS. my $fields_base; my $inheritor = caller(0); my @bases; foreach my $base (@_) { if ( $inheritor eq $base ) { warn "Class '$inheritor' tried to inherit from itself\n"; } next if grep $_->isa($base), ($inheritor, @bases); # Following blocks help isolate $SIG{__DIE__} and @INC changes { my $sigdie; { local $SIG{__DIE__}; my $fn = _module_to_filename($base); my $dot_hidden; eval { my $guard; if ($INC[-1] eq '.' && %{"$base\::"}) { # So: the package already exists => this an optional load # And: there is a dot at the end of @INC => we want to hide it # However: we only want to hide it during our *own* require() # (i.e. without affecting nested require()s). # So we add a hook to @INC whose job is to hide the dot, but which # first checks checks the callstack depth, because within nested # require()s the callstack is deeper. # Since CORE::GLOBAL::require makes it unknowable in advance what # the exact relevant callstack depth will be, we have to record it # inside a hook. So we put another hook just for that at the front # of @INC, where it's guaranteed to run -- immediately. # The dot-hiding hook does its job by sitting directly in front of # the dot and removing itself from @INC when reached. This causes # the dot to move up one index in @INC, causing the loop inside # pp_require() to skip it. # Loaded coded may disturb this precise arrangement, but that's OK # because