Gecko [ paroquia-rio-de-mouro.pt ]

Name	Size	Permission	Date
Carp	[ DIR ]	drwxr-xr-x	2020-10-27 07:29
Exporter	[ DIR ]	drwxr-xr-x	2020-10-27 07:29
File	[ DIR ]	drwxr-xr-x	2020-10-27 07:29
Getopt	[ DIR ]	drwxr-xr-x	2020-10-27 07:29
Hash	[ DIR ]	drwxr-xr-x	2020-10-27 07:29
IO	[ DIR ]	drwxr-xr-x	2020-10-27 07:29
IPC	[ DIR ]	drwxr-xr-x	2020-10-27 07:29
List	[ DIR ]	drwxr-xr-x	2020-10-27 07:29
Scalar	[ DIR ]	drwxr-xr-x	2020-10-27 07:29
Text	[ DIR ]	drwxr-xr-x	2020-10-27 07:29
Tie	[ DIR ]	drwxr-xr-x	2020-10-27 07:29
auto	[ DIR ]	drwxr-xr-x	2016-03-13 12:54
unicore	[ DIR ]	drwxr-xr-x	2020-10-27 07:29
warnings	[ DIR ]	drwxr-xr-x	2020-10-27 07:29
AutoLoader.pm	5.36 KB	-rw-r--r--	2020-10-19 12:57
Carp.pm	19.6 KB	-rw-r--r--	2020-10-19 12:57
Config.pm	3.25 KB	-rw-r--r--	2020-10-19 12:57
Config_git.pl	409 B	-rw-r--r--	2020-10-19 12:57
Config_heavy.pl	48.62 KB	-rw-r--r--	2020-10-19 12:57
Cwd.pm	18.27 KB	-rw-r--r--	2020-10-19 12:57
DynaLoader.pm	10.5 KB	-rw-r--r--	2020-10-19 12:57
Errno.pm	4.77 KB	-rw-r--r--	2020-10-19 12:57
Exporter.pm	2.31 KB	-rw-r--r--	2020-10-19 12:57
Fcntl.pm	2.11 KB	-rw-r--r--	2020-10-19 12:57
FileHandle.pm	2.06 KB	-rw-r--r--	2020-10-19 12:57
IO.pm	413 B	-rw-r--r--	2020-10-19 12:57
POSIX.pm	17.58 KB	-rw-r--r--	2020-10-19 12:57
SelectSaver.pm	344 B	-rw-r--r--	2020-10-19 12:57
Socket.pm	13.15 KB	-rw-r--r--	2020-10-19 12:57
Symbol.pm	2.05 KB	-rw-r--r--	2020-10-19 12:57
XSLoader.pm	3.95 KB	-rw-r--r--	2020-10-19 12:57
attributes.pm	2.95 KB	-rw-r--r--	2020-10-19 12:57
base.pm	5.21 KB	-rw-r--r--	2020-10-19 12:57
bytes.pm	447 B	-rw-r--r--	2020-10-19 12:57
bytes_heavy.pl	758 B	-rw-r--r--	2020-10-19 12:57
constant.pm	5.6 KB	-rw-r--r--	2020-10-19 12:57
feature.pm	4.08 KB	-rw-r--r--	2020-10-19 12:57
fields.pm	4.87 KB	-rw-r--r--	2020-10-19 12:57
integer.pm	172 B	-rw-r--r--	2020-10-19 12:57
lib.pm	2.23 KB	-rw-r--r--	2020-10-19 12:57
locale.pm	2.81 KB	-rw-r--r--	2020-10-19 12:57
overload.pm	4.36 KB	-rw-r--r--	2020-10-19 12:57
overloading.pm	964 B	-rw-r--r--	2020-10-19 12:57
parent.pm	607 B	-rw-r--r--	2020-10-19 12:57
re.pm	8.44 KB	-rw-r--r--	2020-10-19 12:57
strict.pm	1.48 KB	-rw-r--r--	2020-10-19 12:57
utf8.pm	342 B	-rw-r--r--	2020-10-19 12:57
utf8_heavy.pl	31.25 KB	-rw-r--r--	2020-10-19 12:57
vars.pm	1.12 KB	-rw-r--r--	2020-10-19 12:57
warnings.pm	21.49 KB	-rw-r--r--	2020-10-19 12:57

Rename

package base;

use strict 'vars';
use vars qw($VERSION);
$VERSION = '2.22';
$VERSION = eval $VERSION;

# 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__} changes
        {
            my $sigdie;
            {
                local $SIG{__DIE__};
                my $fn = _module_to_filename($base);
                eval { require $fn };
                # Only ignore "Can't locate" errors from our eval require.
                # Other fatal errors (syntax etc) must be reported.
                #
                # changing the check here is fragile - if the check
                # here isn't catching every error you want, you should
                # probably be using parent.pm, which doesn't try to
                # guess whether require is needed or failed,
                # see [perl #118561]
                die if $@ && $@ !~ /^Can't locate \Q$fn\E .*? at .* line [0-9]+(?:, <[^>]*> (?:line|chunk) [0-9]+)?\.\n\z/s
                          || $@ =~ /Compilation failed in require at .* line [0-9]+(?:, <[^>]*> (?:line|chunk) [0-9]+)?\.\n\z/;
                unless (%{"$base\::"}) {
                    require Carp;
                    local $" = " ";
                    Carp::croak(<<ERROR);
Base class package "$base" is empty.
    (Perhaps you need to 'use' the module which defines that package first,
    or make that module available in \@INC (\@INC contains: @INC).
ERROR
                }
                $sigdie = $SIG{__DIE__} || undef;
            }
            # Make sure a global $SIG{__DIE__} makes it out of the localization.
            $SIG{__DIE__} = $sigdie if defined $sigdie;
        }
        push @bases, $base;

if ( has_fields($base) || has_attr($base) ) {
            # No multiple fields inheritance *suck*
            if ($fields_base) {
                require Carp;
                Carp::croak("Can't multiply inherit fields");
            } else {
                $fields_base = $base;
            }
        }
    }
    # Save this until the end so it's all or nothing if the above loop croaks.
    push @{"$inheritor\::ISA"}, @bases;

if( defined $fields_base ) {
        inherit_fields($inheritor, $fields_base);
    }
}

sub inherit_fields {
    my($derived, $base) = @_;

return SUCCESS unless $base;

my $battr = get_attr($base);
    my $dattr = get_attr($derived);
    my $dfields = get_fields($derived);
    my $bfields = get_fields($base);

$dattr->[0] = @$battr;

if( keys %$dfields ) {
        warn <<"END";
$derived is inheriting from $base but already has its own fields!
This will cause problems.  Be sure you use base BEFORE declaring fields.
END

}

# Iterate through the base's fields adding all the non-private
    # ones to the derived class.  Hang on to the original attribute
    # (Public, Private, etc...) and add Inherited.
    # This is all too complicated to do efficiently with add_fields().
    while (my($k,$v) = each %$bfields) {
        my $fno;
        if ($fno = $dfields->{$k} and $fno != $v) {
            require Carp;
            Carp::croak ("Inherited fields can't override existing fields");
        }

if( $battr->[$v] & PRIVATE ) {
            $dattr->[$v] = PRIVATE | INHERITED;
        }
        else {
            $dattr->[$v] = INHERITED | $battr->[$v];
            $dfields->{$k} = $v;
        }
    }

foreach my $idx (1..$#{$battr}) {
        next if defined $dattr->[$idx];
        $dattr->[$idx] = $battr->[$idx] & INHERITED;
    }
}

__END__