package Exporter; require 5.006; # Be lean. #use strict; #no strict 'refs'; our $Debug = 0; our $ExportLevel = 0; our $Verbose ||= 0; our $VERSION = '5.72'; our (%Cache); sub as_heavy { require Exporter::Heavy; # Unfortunately, this does not work if the caller is aliased as *name = \&foo # Thus the need to create a lot of identical subroutines my $c = (caller(1))[3]; $c =~ s/.*:://; \&{"Exporter::Heavy::heavy_$c"}; } sub export { goto &{as_heavy()}; } sub import { my $pkg = shift; my $callpkg = caller($ExportLevel); if ($pkg eq "Exporter" and @_ and $_[0] eq "import") { *{$callpkg."::import"} = \&import; return; } # We *need* to treat @{"$pkg\::EXPORT_FAIL"} since Carp uses it :-( my $exports = \@{"$pkg\::EXPORT"}; # But, avoid creating things if they don't exist, which saves a couple of # hundred bytes per package processed. my $fail = ${$pkg . '::'}{EXPORT_FAIL} && \@{"$pkg\::EXPORT_FAIL"}; return export $pkg, $callpkg, @_ if $Verbose or $Debug or $fail && @$fail > 1; my $export_cache = ($Cache{$pkg} ||= {}); my $args = @_ or @_ = @$exports; if ($args and not %$export_cache) { s/^&//, $export_cache->{$_} = 1 foreach (@$exports, @{"$pkg\::EXPORT_OK"}); } my $heavy; # Try very hard not to use {} and hence have to enter scope on the foreach # We bomb out of the loop with last as soon as heavy is set. if ($args or $fail) { ($heavy = (/\W/ or $args and not exists $export_cache->{$_} or $fail and @$fail and $_ eq $fail->[0])) and last foreach (@_); } else { ($heavy = /\W/) and last foreach (@_); } return export $pkg, $callpkg, ($args ? @_ : ()) if $heavy; local $SIG{__WARN__} = sub {require Carp; &Carp::carp} if not $SIG{__WARN__}; # shortcut for the common case of no type character *{"$callpkg\::$_"} = \&{"$pkg\::$_"} foreach @_; } # Default methods sub export_fail { my $self = shift; @_; } # Unfortunately, caller(1)[3] "does not work" if the caller is aliased as # *name = \&foo. Thus the need to create a lot of identical subroutines # Otherwise we could have aliased them to export(). sub export_to_level { goto &{as_heavy()}; } sub export_tags { goto &{as_heavy()}; } sub export_ok_tags { goto &{as_heavy()}; } sub require_version { goto &{as_heavy()}; } 1; __END__
Name | Type | Size | Permission | Actions |
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Carp | Folder | 0755 |
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Exporter | Folder | 0755 |
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File | Folder | 0755 |
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Getopt | Folder | 0755 |
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Hash | Folder | 0755 |
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IO | Folder | 0755 |
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IPC | Folder | 0755 |
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List | Folder | 0755 |
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Scalar | Folder | 0755 |
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Text | Folder | 0755 |
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Tie | Folder | 0755 |
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auto | Folder | 0755 |
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unicore | Folder | 0755 |
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warnings | Folder | 0755 |
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AutoLoader.pm | File | 5.36 KB | 0644 |
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Carp.pm | File | 19.68 KB | 0644 |
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Config.pm | File | 3.29 KB | 0644 |
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Config_git.pl | File | 409 B | 0644 |
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Config_heavy.pl | File | 53.2 KB | 0644 |
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Cwd.pm | File | 18.1 KB | 0644 |
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DynaLoader.pm | File | 10.23 KB | 0644 |
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Errno.pm | File | 4.82 KB | 0644 |
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Exporter.pm | File | 2.31 KB | 0644 |
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Fcntl.pm | File | 2.11 KB | 0644 |
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FileHandle.pm | File | 2.06 KB | 0644 |
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IO.pm | File | 469 B | 0644 |
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POSIX.pm | File | 19.72 KB | 0644 |
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SelectSaver.pm | File | 344 B | 0644 |
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Socket.pm | File | 13.24 KB | 0644 |
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Symbol.pm | File | 2.05 KB | 0644 |
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XSLoader.pm | File | 3.83 KB | 0644 |
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attributes.pm | File | 3.03 KB | 0644 |
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base.pm | File | 8.72 KB | 0644 |
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bytes.pm | File | 447 B | 0644 |
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bytes_heavy.pl | File | 758 B | 0644 |
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constant.pm | File | 5.6 KB | 0644 |
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feature.pm | File | 4.39 KB | 0644 |
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fields.pm | File | 4.9 KB | 0644 |
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integer.pm | File | 172 B | 0644 |
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lib.pm | File | 2.23 KB | 0644 |
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locale.pm | File | 3.34 KB | 0644 |
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overload.pm | File | 4.34 KB | 0644 |
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overloading.pm | File | 964 B | 0644 |
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parent.pm | File | 478 B | 0644 |
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re.pm | File | 8.5 KB | 0644 |
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strict.pm | File | 1.57 KB | 0644 |
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utf8.pm | File | 342 B | 0644 |
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utf8_heavy.pl | File | 30.87 KB | 0644 |
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vars.pm | File | 1.12 KB | 0644 |
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warnings.pm | File | 21.44 KB | 0644 |
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