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package Exporter::Extensible; |
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10049
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use v5; |
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use strict; no strict 'refs'; |
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use warnings; no warnings 'redefine'; |
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6497
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5
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require Exporter::Extensible::Compat if "$]" < "5.012"; |
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require mro; |
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8
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# ABSTRACT: Create easy-to-extend modules which export symbols |
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our $VERSION = '0.11'; # VERSION |
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our %EXPORT_FAST_SUB_CACHE; |
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our %EXPORT_PKG_CACHE; |
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our %EXPORT_TAGS_PKG_CACHE; |
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our %EXPORT= ( |
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-exporter_setup => [ 'exporter_setup', 1 ], |
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); |
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our %sigil_to_reftype= ( |
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'$' => 'SCALAR', |
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'@' => 'ARRAY', |
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'%' => 'HASH', |
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'*' => 'GLOB', |
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'&' => 'CODE', |
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'' => 'CODE', |
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'-' => 'CODE', |
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); |
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our %reftype_to_sigil= ( |
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'SCALAR' => '$', |
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'ARRAY' => '@', |
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'HASH' => '%', |
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'GLOB' => '*', |
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'CODE' => '', |
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); |
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our %sigil_to_generator_prefix= ( |
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'$' => [ '_generateSCALAR_', '_generateScalar_' ], |
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'@' => [ '_generateARRAY_', '_generateArray_' ], |
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'%' => [ '_generateHASH_', '_generateHash_' ], |
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'*' => [ '_generateGLOB_', '_generateGlob_' ], |
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'&' => [ '_generate_', '_generateCODE_', '_generateCode' ], |
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); |
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$sigil_to_generator_prefix{''}= $sigil_to_generator_prefix{'&'}; |
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our %ord_is_sigil= ( ord '$', 1, ord '@', 1, ord '%', 1, ord '*', 1, ord '&', 1, ord '-', 1, ord ':', 1 ); |
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our %ord_is_directive= ( ord '-', 1, ord ':', 1 ); |
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46
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my ($carp, $croak, $weaken, $colon, $hyphen); |
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$carp= sub { require Carp; $carp= \&Carp::carp; goto $carp; }; |
48
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$croak= sub { require Carp; $croak= \&Carp::croak; goto $croak; }; |
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$weaken= sub { require Scalar::Util; $weaken= \&Scalar::Util::weaken; goto $weaken; }; |
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$colon= ord ':'; |
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$hyphen= ord '-'; |
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53
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sub import { |
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106
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106
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43794
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my $self= shift; |
55
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# Can be called as class method or instance method |
56
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106
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100
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486
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$self= bless { into => scalar caller }, $self |
57
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unless ref $self; |
58
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# Optional config hash might be given as first argument |
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106
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100
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411
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$self->exporter_apply_global_config(shift) |
60
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if ref $_[0] eq 'HASH'; |
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106
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190
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my $class= ref $self; |
62
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106
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100
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358
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my @todo= @_? @_ : @{ $self->exporter_get_tag('default') || [] }; |
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100
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38
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63
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106
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100
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433
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return 1 unless @todo; |
64
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# If only installing subs without generators or unusual options, use a more direct code path. |
65
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# This only takes effect the second time a symbol is requested, since the cache is not pre-populated. |
66
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# (abuse a while loop as a if/goto construct) |
67
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94
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100
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511
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fast: while (!$self->{_complex} && !grep ref, @todo) { |
68
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69
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100
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193
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my $fastsub= $EXPORT_FAST_SUB_CACHE{$class} || last; # can't optimize if no cache is built |
69
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15
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40
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my $prefix= $self->{into}.'::'; # {into} can be a hashref, but not when {_complex} is false |
70
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15
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100
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47
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my $replace= $self->{replace} || 'carp'; |
71
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15
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100
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44
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if ($replace eq 'carp') { |
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100
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72
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# Use perl's own warning system to detect attempts to overwrite the GLOB. Only warn if the |
73
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# new reference isn't the same as existing. |
74
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12
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12
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109
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use warnings 'redefine'; |
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27
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12
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77099
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75
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0
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0
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92
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local $SIG{__WARN__}= sub { *{$prefix.$_}{CODE} == $fastsub->{$_} or $carp->($_[0]) }; |
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0
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0
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0
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0
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76
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10
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54
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ord == $colon || (*{$prefix.$_}= ($fastsub->{$_} || last fast)) |
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11
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100
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90
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for @todo; |
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66
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78
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} |
79
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elsif ($replace eq 1) { |
80
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4
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23
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ord == $colon || (*{$prefix.$_}= ($fastsub->{$_} || last fast)) |
81
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2
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50
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8
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for @todo; |
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66
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82
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} |
83
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2
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4
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else { last } # replace==croak and replace==skip require more logic |
84
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# Now apply any tags that were requested. Each will get its own determination of whether it |
85
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# can use the 'fast' method. |
86
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3
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10
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ord == $colon && $self->import(@{$self->exporter_get_tag(substr $_, 1)}) |
87
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7
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66
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59
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for @todo; |
88
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7
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47
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return 1; |
89
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} |
90
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87
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250
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my $install= $self->_exporter_build_install_set(\@todo); |
91
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92
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# Install might actually be uninstall. It also might be overridden by the user. |
93
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# The exporter_combine_config sets this up so we don't need to think about details. |
94
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87
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33
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348
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my $method= $self->{installer} || ($self->{no}? 'exporter_uninstall' : 'exporter_install'); |
95
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# Convert |
96
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# { foo => { SCALAR => \$foo, HASH => \%foo } } |
97
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# into |
98
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# [ foo => \$foo, foo => \%foo ] |
99
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87
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258
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my @flat_install= %$install; |
100
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87
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224
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for my $i (reverse 1..$#flat_install) { |
101
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103
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100
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237
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if (ref $flat_install[$i] eq 'HASH') { |
102
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9
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18
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splice @flat_install, $i-1, 2, map +($flat_install[$i-1] => $_), values %{$flat_install[$i]}; |
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9
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92
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103
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} |
104
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} |
105
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# Then pass that list to the installer (or uninstaller) |
106
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87
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411
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$self->$method(\@flat_install); |
107
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# If scope requested, create the scope-guard object |
108
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85
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100
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212
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if (my $scope= $self->{scope}) { |
109
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1
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5
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$$scope= bless [ $self, \@flat_install ], 'Exporter::Extensible::UnimportScopeGuard'; |
110
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1
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3
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$weaken->($self->{scope}); |
111
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} |
112
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# It's entirely likely that a generator might curry $self inside the sub it generated. |
113
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# So, we end up with a circular reference if we're holding onto the set of all things we |
114
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# exported. Clear the set. |
115
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85
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166
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%$install= (); |
116
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85
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2928
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1; |
117
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} |
118
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119
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sub _exporter_build_install_set { |
120
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88
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88
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179
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my ($self, $todo)= @_; |
121
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88
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170
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$self->{todo}= $todo; |
122
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88
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100
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313
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my $install= $self->{install_set} ||= {}; |
123
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88
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100
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298
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my $inventory= $EXPORT_PKG_CACHE{ref $self} ||= {}; |
124
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88
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202
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while (@$todo) { |
125
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140
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273
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my $symbol= shift @$todo; |
126
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127
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# If it is a tag, then recursively call import on that list |
128
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140
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100
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316
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if (ord $symbol == $colon) { |
129
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13
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33
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my $name= substr $symbol, 1; |
130
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13
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50
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43
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my $tag_cache= $self->exporter_get_tag($name) |
131
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or $croak->("Tag ':$name' is not exported by ".ref($self)); |
132
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# If first element of tag is a hashref, they count as nested global options. |
133
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# If tag was followed by hashref, those are user-supplied options. |
134
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13
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100
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66
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57
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if (ref $tag_cache->[0] eq 'HASH' || ref $todo->[0] eq 'HASH') { |
135
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1
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3
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$tag_cache= [ @$tag_cache ]; # don't destroy cache |
136
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1
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2
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my $self2= $self; |
137
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1
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50
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3
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$self2= $self2->exporter_apply_global_config(shift @$tag_cache) |
138
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if ref $tag_cache->[0] eq 'HASH'; |
139
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1
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50
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6
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$self2= $self2->exporter_apply_inline_config(shift @$todo) |
140
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if ref $todo->[0] eq 'HASH'; |
141
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1
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50
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9
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if ($self != $self2) { |
142
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1
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14
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$self2->_exporter_build_install_set($tag_cache); |
143
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1
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4
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next; |
144
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} |
145
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} |
146
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12
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46
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unshift @$todo, @$tag_cache; |
147
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12
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38
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next; |
148
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} |
149
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# Else, it is an option or plain symbol to be exported |
150
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# Check current package cache first, else do the full lookup. |
151
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127
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100
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412
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my $ref= (exists $inventory->{$symbol}? $inventory->{$symbol} : $self->exporter_get_inherited($symbol)) |
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50
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152
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or $croak->("'$symbol' is not exported by ".ref($self)); |
153
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154
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# If it starts with '-', it is an option, and might consume additional args |
155
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127
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100
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244
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if (ord $symbol == $hyphen) { |
156
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# back-compat for when opt was arrayref |
157
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40
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50
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103
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if (ref $ref eq 'ARRAY') { |
158
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40
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87
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my ($method, $count)= @$ref; |
159
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40
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95
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$ref= $self->_exporter_wrap_option_handler($method, $count); |
160
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} |
161
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40
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150
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$self->$ref; |
162
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} |
163
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else { |
164
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87
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100
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282
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my ($sigil, $name)= $ord_is_sigil{ord $symbol}? ( substr($symbol,0,1), substr($symbol,1) ) : ( '', $symbol ); |
165
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87
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137
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my $self2= $self; |
166
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# If followed by a hashref, add those options to the current ones. |
167
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87
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100
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230
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$self2= $self->exporter_apply_inline_config(shift @$todo) |
168
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if ref $todo->[0] eq 'HASH'; |
169
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87
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100
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212
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if ($self2->{_name_mangle}) { |
170
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33
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100
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100
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85
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next if defined $self2->{not} and $self2->_exporter_is_excluded($symbol); |
171
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23
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66
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136
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$name= delete $self2->{as} || ($self2->{prefix}||'') . $name . ($self2->{suffix}||''); |
172
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# If 'as' was the only reason for _name_mangle, then disable it to return to fast-path |
173
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23
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100
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100
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92
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delete $self2->{_name_mangle} unless defined $self2->{prefix} || defined $self2->{suffix} || defined $self2->{not}; |
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100
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174
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} |
175
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# If $ref is a generator (method name or coderef or coderefref in the case of exported subs) then run it, |
176
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# unless it was already run for the current symbol exporting to the current dest. |
177
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77
|
100
|
100
|
|
|
320
|
if (!ref $ref || ref $ref eq ($sigil? 'CODE':'REF')) { |
|
|
100
|
|
|
|
|
|
178
|
5
|
|
33
|
|
|
23
|
$ref= ($self2->{_generator_cache}{$symbol.";".$name} ||= do { |
179
|
|
|
|
|
|
|
# Run the generator. |
180
|
5
|
100
|
|
|
|
10
|
my $method= ref $ref eq 'REF'? $$ref : $ref; |
181
|
5
|
100
|
|
|
|
11
|
$method= $$method if ref $method eq 'SCALAR'; # back-compat for \\$method_name |
182
|
5
|
|
|
|
|
100
|
$self2->$method($symbol, $self2->{generator_arg}); |
183
|
|
|
|
|
|
|
}); |
184
|
|
|
|
|
|
|
# Verify generator output matches sigil |
185
|
|
|
|
|
|
|
ref $ref eq $sigil_to_reftype{$sigil} or (ref $ref eq 'REF' && $sigil eq '$') |
186
|
|
|
|
|
|
|
or $croak->("Trying to export '$symbol', but generator returned " |
187
|
5
|
0
|
0
|
|
|
825
|
.ref($ref).' (need '.$sigil_to_reftype{$sigil}.')'); |
|
|
|
33
|
|
|
|
|
188
|
|
|
|
|
|
|
} |
189
|
|
|
|
|
|
|
# Check for collisions. Unlikely scenario in typical usage, but could occur if two |
190
|
|
|
|
|
|
|
# tags include the same symbol, or if user adds a prefix or suffix that collides |
191
|
|
|
|
|
|
|
# with another exported name. |
192
|
77
|
50
|
|
|
|
220
|
if ($install->{$name}) { |
|
|
100
|
|
|
|
|
|
193
|
0
|
0
|
|
|
|
0
|
if ($install->{$name} != $ref) { # most common case of duplicate export, ignore it. |
194
|
0
|
0
|
0
|
|
|
0
|
if (ref $ref eq 'GLOB' || ref $install->{$name} eq 'GLOB') { |
195
|
|
|
|
|
|
|
# globrefs will never be equal - compare the glob itself. |
196
|
0
|
|
|
|
|
0
|
ref $ref eq 'GLOB' && ref $install->{dest} eq 'GLOB' && *{$install->{$name}} eq *$ref |
197
|
|
|
|
|
|
|
# can't install an entire glob at the same time as a piece of a glob. |
198
|
0
|
0
|
0
|
|
|
0
|
or $croak->("Can't install ".ref($ref)." and ".$install->{dest}." into the same symbol '".$name."'"); |
|
|
|
0
|
|
|
|
|
199
|
|
|
|
|
|
|
} |
200
|
|
|
|
|
|
|
# Upgrade this item to a hashref of reftype if it wasn't already (hashrefs are always stored this way) |
201
|
|
|
|
|
|
|
$install->{$name}= { ref($install->{$name}) => $install->{$name} } |
202
|
0
|
0
|
|
|
|
0
|
unless ref $install->{$name} eq 'HASH'; |
203
|
|
|
|
|
|
|
# Assign this new ref into a slot of that hash, unless something different was already there |
204
|
0
|
0
|
0
|
|
|
0
|
($install->{$name}{ref $ref} ||= $ref) == $ref |
205
|
|
|
|
|
|
|
or $croak->("Trying to import conflicting ".ref($ref)." values for '".$name."'"); |
206
|
|
|
|
|
|
|
} |
207
|
|
|
|
|
|
|
} |
208
|
|
|
|
|
|
|
# Only make install->{$name} a hashref if we really have to, for performance. |
209
|
|
|
|
|
|
|
elsif (ref $ref eq 'HASH') { |
210
|
9
|
|
|
|
|
39
|
$install->{$name}{HASH}= $ref; |
211
|
|
|
|
|
|
|
} |
212
|
|
|
|
|
|
|
else { |
213
|
68
|
|
|
|
|
220
|
$install->{$name}= $ref; |
214
|
|
|
|
|
|
|
} |
215
|
|
|
|
|
|
|
} |
216
|
|
|
|
|
|
|
} |
217
|
88
|
|
|
|
|
307
|
return $install; |
218
|
|
|
|
|
|
|
} |
219
|
|
|
|
|
|
|
|
220
|
|
|
|
|
|
|
sub Exporter::Extensible::UnimportScopeGuard::clean { |
221
|
1
|
|
|
1
|
0
|
3
|
my $self= shift; |
222
|
1
|
50
|
|
|
|
8
|
$self->[0]->exporter_uninstall($self->[1]) if $self->[1]; |
223
|
1
|
|
|
|
|
11
|
$self->[1]= undef; # Ignore subsequent calls |
224
|
|
|
|
|
|
|
} |
225
|
|
|
|
|
|
|
|
226
|
|
|
|
|
|
|
sub Exporter::Extensible::UnimportScopeGuard::DESTROY { |
227
|
1
|
|
|
1
|
|
810
|
shift->clean; |
228
|
|
|
|
|
|
|
} |
229
|
|
|
|
|
|
|
|
230
|
|
|
|
|
|
|
sub exporter_install { |
231
|
80
|
|
|
80
|
0
|
157
|
my $self= shift; |
232
|
80
|
50
|
|
|
|
192
|
my $into= $self->{into} or $croak->("'into' must be defined before exporter_install"); |
233
|
80
|
100
|
|
|
|
166
|
return $self->_exporter_install_to_ref(@_) if ref $into; |
234
|
78
|
|
100
|
|
|
231
|
my $replace= $self->{replace} || 'warn'; |
235
|
78
|
|
|
|
|
113
|
my $stash= \%{$into.'::'}; |
|
78
|
|
|
|
|
265
|
|
236
|
78
|
50
|
33
|
|
|
397
|
my $list= @_ == 1 && ref $_[0] eq 'ARRAY'? $_[0] : \@_; |
237
|
78
|
|
|
|
|
230
|
for (my $i= 0; $i < @$list; $i+= 2) { |
238
|
65
|
|
|
|
|
145
|
my ($name, $ref)= @{$list}[$i..1+$i]; |
|
65
|
|
|
|
|
148
|
|
239
|
65
|
|
|
|
|
139
|
my $pkg_dest= $into.'::'.$name; |
240
|
|
|
|
|
|
|
# Each value is either a hashref with keys matching the parts of a typeglob, |
241
|
|
|
|
|
|
|
# or it is a single ref that can be assigned directly to the typeglob. |
242
|
65
|
100
|
100
|
|
|
256
|
if (defined $stash->{$name} and $replace ne 1) { |
243
|
|
|
|
|
|
|
# there is actually no way I know of to test existence of *foo{SCALAR}. |
244
|
|
|
|
|
|
|
# It auto-vivifies when accessed. |
245
|
|
|
|
|
|
|
my $conflict= (ref $ref eq 'GLOB')? $stash->{$name} ne *$ref |
246
|
|
|
|
|
|
|
: (ref $ref eq 'SCALAR')? 0 # TODO: How to test existence of *foo{SCALAR} ? It auto-vivifies |
247
|
19
|
100
|
100
|
|
|
127
|
: (*$pkg_dest{ref $ref} && *$pkg_dest{ref $ref} != $ref); |
|
|
50
|
|
|
|
|
|
248
|
19
|
100
|
|
|
|
57
|
if ($conflict) { |
249
|
4
|
100
|
|
|
|
11
|
next if $replace eq 'skip'; |
250
|
3
|
|
|
|
|
7
|
$name= $reftype_to_sigil{ref $ref} . $name; # include sigil for user's benefit |
251
|
3
|
100
|
|
|
|
140
|
$replace eq 'warn'? $carp->("Overwriting '$name' with $ref from ".ref($self)) |
252
|
|
|
|
|
|
|
: $croak->("Refusing to overwrite '$name' with $ref from ".ref($self)); |
253
|
|
|
|
|
|
|
} |
254
|
|
|
|
|
|
|
} |
255
|
62
|
|
|
|
|
338
|
*$pkg_dest= $ref; |
256
|
|
|
|
|
|
|
} |
257
|
|
|
|
|
|
|
} |
258
|
|
|
|
|
|
|
|
259
|
|
|
|
|
|
|
sub exporter_uninstall { |
260
|
8
|
|
|
8
|
0
|
11
|
my $self= shift; |
261
|
8
|
50
|
|
|
|
33
|
my $into= $self->{into} or $croak->("'into' must be defined before exporter_uninstall"); |
262
|
8
|
100
|
|
|
|
36
|
return $self->_exporter_install_to_ref(@_) if ref $into; |
263
|
7
|
|
|
|
|
14
|
my $stash= \%{$into.'::'}; |
|
7
|
|
|
|
|
22
|
|
264
|
7
|
50
|
33
|
|
|
37
|
my $list= @_ == 1 && ref $_[0] eq 'ARRAY'? $_[0] : \@_; |
265
|
7
|
|
|
|
|
21
|
for (my $i= 0; $i < @$list; $i+= 2) { |
266
|
9
|
|
|
|
|
20
|
my ($name, $ref)= @{$list}[$i..1+$i]; |
|
9
|
|
|
|
|
21
|
|
267
|
|
|
|
|
|
|
# Each value is either a hashref with keys matching the parts of a typeglob, |
268
|
|
|
|
|
|
|
# or it is a single ref that can be assigned directly to the typeglob. |
269
|
9
|
100
|
|
|
|
26
|
if (ref $ref eq 'GLOB') { |
270
|
|
|
|
|
|
|
# If the value we installed is no longer there, do nothing |
271
|
1
|
50
|
50
|
|
|
8
|
next unless *$ref eq ($stash->{$name}||''); |
272
|
1
|
|
|
|
|
6
|
delete $stash->{$name}; |
273
|
|
|
|
|
|
|
} |
274
|
|
|
|
|
|
|
else { |
275
|
8
|
|
|
|
|
20
|
my $pkg_dest= $into.'::'.$name; |
276
|
|
|
|
|
|
|
# If the value we installed is no longer there, do nothing |
277
|
8
|
50
|
50
|
|
|
11
|
next unless $ref == (*{$pkg_dest}{ref $ref}||0); |
278
|
|
|
|
|
|
|
# Remove old typeglob, then copy all slots except reftype back to that typeglob name |
279
|
8
|
|
|
|
|
38
|
my $old= delete $stash->{$name}; |
280
|
32
|
|
|
|
|
149
|
($_ ne ref $ref) && *{$old}{$_} && (*$pkg_dest= *{$old}{$_}) |
|
12
|
|
|
|
|
76
|
|
281
|
8
|
|
100
|
|
|
51
|
for qw( SCALAR HASH ARRAY CODE IO ); |
|
|
|
100
|
|
|
|
|
282
|
|
|
|
|
|
|
} |
283
|
|
|
|
|
|
|
} |
284
|
|
|
|
|
|
|
} |
285
|
|
|
|
|
|
|
|
286
|
|
|
|
|
|
|
sub _exporter_install_to_ref { |
287
|
3
|
|
|
3
|
|
4
|
my $self= shift; |
288
|
3
|
|
|
|
|
6
|
my $into= $self->{into}; |
289
|
3
|
50
|
|
|
|
7
|
ref $into eq 'HASH' or $croak->("'into' must be a hashref"); |
290
|
3
|
|
50
|
|
|
11
|
my $replace= $self->{replace} || 'warn'; |
291
|
3
|
50
|
33
|
|
|
12
|
my $list= @_ == 1 && ref $_[0] eq 'ARRAY'? $_[0] : \@_; |
292
|
3
|
|
|
|
|
10
|
for (my $i= 0; $i < @$list; $i+= 2) { |
293
|
6
|
|
|
|
|
12
|
my ($name, $ref)= @{$list}[$i..1+$i]; |
|
6
|
|
|
|
|
15
|
|
294
|
6
|
|
|
|
|
16
|
$name= $reftype_to_sigil{ref $ref} . $name; # include sigil when installing to hashref |
295
|
6
|
100
|
|
|
|
13
|
if ($self->{no}) { |
296
|
1
|
|
|
|
|
5
|
delete $into->{$name}; |
297
|
|
|
|
|
|
|
} |
298
|
|
|
|
|
|
|
else { |
299
|
5
|
50
|
33
|
|
|
13
|
if (defined $into->{$name} && $into->{name} != $ref) { |
300
|
0
|
0
|
|
|
|
0
|
$replace eq 'skip' and next; |
301
|
0
|
0
|
|
|
|
0
|
$replace eq 'warn' and $carp->("Overwriting '$name' with $ref from ".ref($self)); |
302
|
0
|
0
|
|
|
|
0
|
$replace eq 'die' and $croak->("Refusing to overwrite '$name' with $ref from ".ref($self)); |
303
|
|
|
|
|
|
|
} |
304
|
5
|
|
|
|
|
37
|
$into->{$name}= $ref; |
305
|
|
|
|
|
|
|
} |
306
|
|
|
|
|
|
|
} |
307
|
|
|
|
|
|
|
} |
308
|
|
|
|
|
|
|
|
309
|
4
|
50
|
|
4
|
0
|
16
|
sub exporter_config_prefix { $_[0]->_exporter_set_attr(prefix => $_[1]) if @_ > 1; $_[0]{prefix} } |
|
4
|
|
|
|
|
8
|
|
310
|
3
|
50
|
|
3
|
0
|
17
|
sub exporter_config_suffix { $_[0]->_exporter_set_attr(suffix => $_[1]) if @_ > 1; $_[0]{suffix} } |
|
3
|
|
|
|
|
6
|
|
311
|
6
|
50
|
|
6
|
0
|
37
|
sub exporter_config_as { $_[0]->_exporter_set_attr(as => $_[1]) if @_ > 1; $_[0]{as} } |
|
6
|
|
|
|
|
10
|
|
312
|
7
|
50
|
|
7
|
0
|
31
|
sub exporter_config_no { $_[0]->_exporter_set_attr(no => $_[1]) if @_ > 1; $_[0]{no} } |
|
7
|
|
|
|
|
14
|
|
313
|
50
|
50
|
|
50
|
0
|
226
|
sub exporter_config_into { $_[0]->_exporter_set_attr(into => $_[1]) if @_ > 1; $_[0]{into} } |
|
50
|
|
|
|
|
103
|
|
314
|
1
|
50
|
|
1
|
0
|
4
|
sub exporter_config_scope { $_[0]->_exporter_set_attr(scope => $_[1]) if @_ > 1; $_[0]{scope}; } |
|
1
|
|
|
|
|
2
|
|
315
|
5
|
50
|
|
5
|
0
|
18
|
sub exporter_config_not { $_[0]->_exporter_set_attr(not => $_[1]) if @_ > 1; $_[0]{not}; } |
|
5
|
|
|
|
|
9
|
|
316
|
0
|
0
|
|
0
|
0
|
0
|
sub exporter_config_installer { $_[0]->_exporter_set_attr(installer => $_[1]) if @_ > 1; $_[0]{installer}; } |
|
0
|
|
|
|
|
0
|
|
317
|
|
|
|
|
|
|
|
318
|
|
|
|
|
|
|
sub _exporter_set_attr { |
319
|
76
|
|
|
76
|
|
154
|
my ($self, $name, $val)= @_; |
320
|
76
|
|
|
|
|
163
|
$self->{$name}= $val; |
321
|
|
|
|
|
|
|
# After changing config, update the optimization flags. |
322
|
|
|
|
|
|
|
# _name_mangle is set if there is any deviation from normal installation of the symbol name |
323
|
|
|
|
|
|
|
$self->{_name_mangle}= defined $self->{not} |
324
|
|
|
|
|
|
|
|| defined $self->{as} |
325
|
|
|
|
|
|
|
|| (defined $self->{prefix} && length $self->{prefix}) |
326
|
76
|
|
100
|
|
|
556
|
|| (defined $self->{suffix} && length $self->{suffix}); |
327
|
|
|
|
|
|
|
# _complex is set if the required algorithm is anything more than a simple *{$into.'::'.$name}= $ref |
328
|
|
|
|
|
|
|
# but 'replace' does not trigger _complex currently because I handled that in the fast installer. |
329
|
|
|
|
|
|
|
$self->{_complex}= $self->{no} || $self->{_name_mangle} |
330
|
|
|
|
|
|
|
|| defined $self->{scope} |
331
|
76
|
|
66
|
|
|
477
|
|| $self->{installer} || ref $self->{into}; |
332
|
|
|
|
|
|
|
} |
333
|
|
|
|
|
|
|
|
334
|
|
|
|
|
|
|
our %replace_aliases= ( |
335
|
|
|
|
|
|
|
1 => 1, |
336
|
|
|
|
|
|
|
carp => 'carp', |
337
|
|
|
|
|
|
|
warn => 'carp', |
338
|
|
|
|
|
|
|
croak => 'croak', |
339
|
|
|
|
|
|
|
fatal => 'croak', |
340
|
|
|
|
|
|
|
die => 'croak', |
341
|
|
|
|
|
|
|
skip => 'skip', |
342
|
|
|
|
|
|
|
); |
343
|
|
|
|
|
|
|
sub exporter_config_replace { |
344
|
11
|
50
|
33
|
11
|
0
|
48
|
$_[0]{replace}= $replace_aliases{$_[1]} or $croak->("Invalid 'replace' value: '$_[1]'") |
345
|
|
|
|
|
|
|
if @_ > 1; |
346
|
11
|
|
|
|
|
55
|
$_[0]{replace}; |
347
|
|
|
|
|
|
|
} |
348
|
|
|
|
|
|
|
|
349
|
|
|
|
|
|
|
sub exporter_apply_global_config { |
350
|
55
|
|
|
55
|
0
|
113
|
my ($self, $conf)= @_; |
351
|
55
|
|
|
|
|
178
|
for my $k (keys %$conf) { |
352
|
76
|
0
|
0
|
|
|
432
|
my $setter= $self->can('exporter_config_'.$k) |
|
|
|
33
|
|
|
|
|
353
|
|
|
|
|
|
|
or (substr($k,0,1) eq '-' && $self->can('exporter_config_'.substr($k,1))) |
354
|
|
|
|
|
|
|
or $croak->("No such exporter configuration '$k'"); |
355
|
76
|
|
|
|
|
198
|
$self->$setter($conf->{$k}); |
356
|
|
|
|
|
|
|
} |
357
|
55
|
|
|
|
|
108
|
$self; |
358
|
|
|
|
|
|
|
} |
359
|
|
|
|
|
|
|
|
360
|
|
|
|
|
|
|
sub exporter_apply_inline_config { |
361
|
11
|
|
|
11
|
0
|
24
|
my ($self, $conf)= @_; |
362
|
11
|
|
|
|
|
44
|
my @for_global_config= grep ord == $hyphen, keys %$conf; |
363
|
|
|
|
|
|
|
# In the event that only "-as" was given, we don't actually need to create a new object |
364
|
11
|
100
|
100
|
|
|
121
|
if (@for_global_config == 1 && $for_global_config[0] eq '-as' && keys %$conf == 1) { |
|
|
|
100
|
|
|
|
|
365
|
5
|
|
|
|
|
28
|
$self->exporter_config_as($conf->{-as}); |
366
|
5
|
|
|
|
|
15
|
return $self; |
367
|
|
|
|
|
|
|
} |
368
|
|
|
|
|
|
|
# Else clone and apply temporary settings |
369
|
6
|
|
|
|
|
37
|
my $self2= bless { %$self, parent => $self }, ref $self; |
370
|
6
|
|
|
|
|
26
|
for my $k (@for_global_config) { |
371
|
6
|
50
|
|
|
|
49
|
my $setter= $self2->can('exporter_config_'.substr($k,1)) |
372
|
|
|
|
|
|
|
or $croak->("No such exporter configuration '$k'"); |
373
|
6
|
|
|
|
|
19
|
$self2->$setter($conf->{$k}); |
374
|
|
|
|
|
|
|
} |
375
|
|
|
|
|
|
|
# If any options didn't start with '-', then the config becomes a parameter to the generator. |
376
|
|
|
|
|
|
|
# The generator cache isn't valid for $self2 since the arg changed. |
377
|
6
|
100
|
|
|
|
20
|
if (@for_global_config < scalar keys %$conf) { |
378
|
2
|
|
|
|
|
18
|
$self2->{generator_arg}= $conf; |
379
|
2
|
|
|
|
|
5
|
delete $self2->{_generator_cache}; |
380
|
|
|
|
|
|
|
} |
381
|
6
|
|
|
|
|
32
|
$self2; |
382
|
|
|
|
|
|
|
} |
383
|
|
|
|
|
|
|
|
384
|
|
|
|
|
|
|
sub unimport { |
385
|
|
|
|
|
|
|
# If first option is a hashref (global options), merge that with { no => 1 } |
386
|
7
|
100
|
|
7
|
|
8618
|
my %opts= ( (ref $_[1] eq 'HASH'? %{splice(@_,1,1)} : () ), no => 1 ); |
|
2
|
|
|
|
|
9
|
|
387
|
|
|
|
|
|
|
# Use this as the global options |
388
|
7
|
|
|
|
|
57
|
splice @_, 1, 0, \%opts; |
389
|
7
|
|
|
|
|
69
|
goto $_[0]->can('import'); # to preserve caller |
390
|
|
|
|
|
|
|
} |
391
|
|
|
|
|
|
|
|
392
|
|
|
|
|
|
|
sub import_into { |
393
|
39
|
100
|
|
39
|
1
|
44575
|
shift->import({ into => shift, (ref $_[0] eq 'HASH'? %{+shift} : ()) }, @_); |
|
15
|
|
|
|
|
82
|
|
394
|
|
|
|
|
|
|
} |
395
|
|
|
|
|
|
|
|
396
|
|
|
|
|
|
|
sub exporter_register_symbol { |
397
|
4
|
|
|
4
|
1
|
312
|
my ($class, $export_name, $ref)= @_; |
398
|
4
|
|
33
|
|
|
13
|
$class= ref($class)||$class; |
399
|
4
|
50
|
33
|
|
|
24
|
$ref ||= $class->_exporter_get_ref_to_package_var($export_name) |
400
|
|
|
|
|
|
|
or $croak->("Symbol $export_name not found in package $class"); |
401
|
4
|
|
|
|
|
5
|
${$class.'::EXPORT'}{$export_name}= $ref; |
|
4
|
|
|
|
|
60
|
|
402
|
|
|
|
|
|
|
} |
403
|
|
|
|
|
|
|
|
404
|
|
|
|
|
|
|
sub exporter_autoload_symbol { |
405
|
0
|
|
|
0
|
1
|
0
|
my ($class, $export_name)= @_; |
406
|
0
|
|
|
|
|
0
|
return; |
407
|
|
|
|
|
|
|
} |
408
|
|
|
|
|
|
|
|
409
|
|
|
|
|
|
|
sub exporter_get_inherited { |
410
|
58
|
|
|
58
|
0
|
115
|
my ($self, $sym)= @_; |
411
|
58
|
|
33
|
|
|
136
|
my $class= ref($self)||$self; |
412
|
|
|
|
|
|
|
# Make the common case fast. |
413
|
|
|
|
|
|
|
return $EXPORT_PKG_CACHE{$class}{$sym} ||= |
414
|
58
|
|
33
|
|
|
200
|
do { |
|
|
|
33
|
|
|
|
|
415
|
|
|
|
|
|
|
my $x; |
416
|
|
|
|
|
|
|
# quick check of own package first |
417
|
|
|
|
|
|
|
unless ($x= ${$class.'::EXPORT'}{$sym}) { |
418
|
|
|
|
|
|
|
# search package hierarchy |
419
|
|
|
|
|
|
|
($x= ${$_.'::EXPORT'}{$sym}) && last for @{ mro::get_linear_isa($class) } |
420
|
|
|
|
|
|
|
} |
421
|
|
|
|
|
|
|
# If it is a plain sub, it is elligible for "fast export" |
422
|
|
|
|
|
|
|
$EXPORT_FAST_SUB_CACHE{$class}{$sym}= $x if ref $x eq 'CODE' and !$ord_is_sigil{ord $sym}; |
423
|
|
|
|
|
|
|
#print "# ref=".ref($x)." sym=$sym\n"; |
424
|
|
|
|
|
|
|
$x; |
425
|
|
|
|
|
|
|
} |
426
|
|
|
|
|
|
|
# Isn't exported, but maybe autoload. |
427
|
|
|
|
|
|
|
|| $self->exporter_autoload_symbol($sym); |
428
|
|
|
|
|
|
|
} |
429
|
|
|
|
|
|
|
|
430
|
|
|
|
|
|
|
sub exporter_register_option { |
431
|
5
|
|
|
5
|
1
|
24
|
my ($class, $option_name, $method_name, $arg_count)= @_; |
432
|
5
|
|
33
|
|
|
70
|
$class= ref($class)||$class; |
433
|
5
|
|
|
|
|
25
|
${$class.'::EXPORT'}{'-'.$option_name}= $class->_exporter_wrap_option_handler($method_name, $arg_count); |
|
5
|
|
|
|
|
45
|
|
434
|
|
|
|
|
|
|
} |
435
|
|
|
|
|
|
|
|
436
|
|
|
|
|
|
|
sub _exporter_wrap_option_handler { |
437
|
45
|
|
|
45
|
|
93
|
my ($class, $method, $count)= @_; |
438
|
45
|
100
|
|
|
|
132
|
return $method unless $count; |
439
|
39
|
100
|
|
|
|
171
|
if ($count eq '*') { |
|
|
100
|
|
|
|
|
|
440
|
|
|
|
|
|
|
return sub { |
441
|
4
|
|
|
4
|
|
7
|
my $consumed= $_[0]->$method(@{$_[0]{todo}}); |
|
4
|
|
|
|
|
74
|
|
442
|
4
|
50
|
|
|
|
1398
|
$consumed =~ /^[0-9]+$/ or $croak->("Method $method in ".ref($_[0])." must return a number of arguments consumed"); |
443
|
4
|
|
|
|
|
9
|
splice(@{$_[0]{todo}}, 0, $consumed); |
|
4
|
|
|
|
|
31
|
|
444
|
|
|
|
|
|
|
} |
445
|
5
|
|
|
|
|
35
|
} |
446
|
|
|
|
|
|
|
elsif ($count eq '?') { |
447
|
|
|
|
|
|
|
return sub { |
448
|
3
|
100
|
|
3
|
|
9
|
if (ref $_[0]{todo}[0]) { |
449
|
1
|
|
|
|
|
2
|
my $arg= shift @{$_[0]{todo}}; |
|
1
|
|
|
|
|
13
|
|
450
|
1
|
50
|
|
|
|
9
|
(ref $arg eq 'HASH'? $_[0]->exporter_apply_inline_config($arg) : $_[0]) |
451
|
|
|
|
|
|
|
->$method($arg); |
452
|
|
|
|
|
|
|
} else { |
453
|
2
|
|
|
|
|
38
|
$_[0]->$method(); |
454
|
|
|
|
|
|
|
} |
455
|
|
|
|
|
|
|
} |
456
|
4
|
|
|
|
|
24
|
} |
457
|
|
|
|
|
|
|
else { |
458
|
|
|
|
|
|
|
return sub { |
459
|
29
|
|
|
29
|
|
51
|
$_[0]->$method(splice(@{$_[0]{todo}}, 0, $count)); |
|
29
|
|
|
|
|
160
|
|
460
|
|
|
|
|
|
|
} |
461
|
30
|
|
|
|
|
155
|
} |
462
|
|
|
|
|
|
|
} |
463
|
|
|
|
|
|
|
|
464
|
|
|
|
|
|
|
sub exporter_register_generator { |
465
|
11
|
|
|
11
|
1
|
68
|
my ($class, $export_name, $method)= @_; |
466
|
11
|
|
33
|
|
|
57
|
$class= ref($class)||$class; |
467
|
11
|
50
|
33
|
|
|
34
|
!ref $method or ref $method eq 'CODE' |
468
|
|
|
|
|
|
|
or $croak->("Generator method must be method name (scalar) or coderef"); |
469
|
|
|
|
|
|
|
# Register tag generators in %EXPORT_TAGS |
470
|
11
|
50
|
|
|
|
24
|
if (ord $export_name == $colon) { |
471
|
0
|
0
|
0
|
|
|
0
|
(${$class.'::EXPORT_TAGS'}{substr($export_name,1)} ||= $method) eq $method |
|
0
|
|
|
|
|
0
|
|
472
|
|
|
|
|
|
|
or $croak->("Cannot set generator for $export_name when that tag is already populated within this class ($class)"); |
473
|
|
|
|
|
|
|
} |
474
|
|
|
|
|
|
|
# Register variable generators (export having a sigil) in %EXPORT |
475
|
|
|
|
|
|
|
# Sub generators (for coderef methods) get an extra layer of ref added |
476
|
|
|
|
|
|
|
else { |
477
|
11
|
50
|
33
|
|
|
30
|
${$class.'::EXPORT'}{$export_name}= (ref $method && !$ord_is_sigil{ord $export_name})? \$method : $method; |
|
11
|
|
|
|
|
85
|
|
478
|
|
|
|
|
|
|
} |
479
|
|
|
|
|
|
|
} |
480
|
|
|
|
|
|
|
|
481
|
|
|
|
|
|
|
sub exporter_register_tag_members { |
482
|
8
|
|
|
8
|
1
|
21
|
my ($class, $tag_name)= (shift, shift); |
483
|
8
|
|
33
|
|
|
26
|
$class= ref($class)||$class; |
484
|
8
|
|
|
|
|
13
|
push @{ ${$class.'::EXPORT_TAGS'}{$tag_name} }, @_; |
|
8
|
|
|
|
|
10
|
|
|
8
|
|
|
|
|
63
|
|
485
|
|
|
|
|
|
|
} |
486
|
|
|
|
|
|
|
|
487
|
|
|
|
|
|
|
sub _exporter_build_tag_cache { |
488
|
26
|
|
|
26
|
|
51
|
my ($self, $tagname)= @_; |
489
|
26
|
|
66
|
|
|
88
|
my $class= ref($self)||$self; |
490
|
|
|
|
|
|
|
# Collect all members of this tag from any parent class, but stop at the first undef |
491
|
26
|
|
|
|
|
47
|
my ($dynamic, @keep, %seen, $known); |
492
|
26
|
|
|
|
|
44
|
for (@{ mro::get_linear_isa($class) }) { |
|
26
|
|
|
|
|
160
|
|
493
|
|
|
|
|
|
|
my $add= ${$_.'::EXPORT_TAGS'}{$tagname} |
494
|
|
|
|
|
|
|
# Special case, ':all' is built from all known keys of the %EXPORT var at each inherited package |
495
|
|
|
|
|
|
|
# Also exclude anything exported as part of the Exporter API, but right now that is only |
496
|
|
|
|
|
|
|
# the '-exporter_setup' option. |
497
|
|
|
|
|
|
|
|| ($tagname eq 'all' && defined *{$_.'::EXPORT'}{HASH} |
498
|
52
|
100
|
100
|
|
|
77
|
&& [ grep !$ord_is_directive{+ord}, keys %{$_.'::EXPORT'} ] |
499
|
|
|
|
|
|
|
) |
500
|
|
|
|
|
|
|
or next; |
501
|
25
|
|
|
|
|
82
|
++$known; |
502
|
25
|
100
|
|
|
|
78
|
if (ref $add ne 'ARRAY') { |
503
|
|
|
|
|
|
|
# Found a generator (coderef or method name ref). Call it to get the list of tags. |
504
|
1
|
50
|
|
|
|
16
|
$add= ref $add eq 'CODE'? $add |
|
|
50
|
|
|
|
|
|
505
|
|
|
|
|
|
|
: ref $add eq 'SCALAR'? $$add |
506
|
|
|
|
|
|
|
: $croak->("Tag must expand to an array, code, or a method name ref (not $add)"); |
507
|
1
|
|
|
|
|
40
|
$add= $self->$add($self->{generator_arg}); |
508
|
1
|
50
|
|
|
|
12
|
ref $add eq 'ARRAY' or $croak->("Tag generator must return an arrayref"); |
509
|
1
|
|
|
|
|
2
|
++$dynamic; |
510
|
|
|
|
|
|
|
} |
511
|
|
|
|
|
|
|
# If first element of the list is undef it means this class wanted to reset the tag. |
512
|
|
|
|
|
|
|
# Since we're iterating *up* the hierarchy, it just means end here. |
513
|
25
|
50
|
66
|
|
|
104
|
my $start= (@$add && !defined $add->[0])? 1 : 0; |
514
|
|
|
|
|
|
|
# symbol might be followed by options, so need to skip over refs, but also need to allow |
515
|
|
|
|
|
|
|
# duplicate symbols if they were followed by a ref. |
516
|
|
|
|
|
|
|
(ref $add->[$_] || !$seen{$add->[$_]}++ || ref $add->[$_+1]) && push @keep, $add->[$_] |
517
|
25
|
|
66
|
|
|
240
|
for $start .. $#$add; |
|
|
|
100
|
|
|
|
|
518
|
25
|
50
|
|
|
|
83
|
last if $start; |
519
|
|
|
|
|
|
|
} |
520
|
26
|
100
|
|
|
|
83
|
my $ret= $known? \@keep : $self->exporter_autoload_tag($tagname); |
521
|
26
|
100
|
|
|
|
168
|
$EXPORT_TAGS_PKG_CACHE{$class}{$tagname}= $ret unless $dynamic; |
522
|
26
|
|
|
|
|
74
|
return $ret; |
523
|
|
|
|
|
|
|
} |
524
|
|
|
|
|
|
|
|
525
|
|
|
|
|
|
|
sub exporter_get_tag { |
526
|
36
|
|
|
36
|
0
|
5755
|
my ($self, $tagname)= @_; |
527
|
36
|
|
66
|
|
|
106
|
my $class= ref($self)||$self; |
528
|
|
|
|
|
|
|
# Make the common case fast |
529
|
36
|
|
|
|
|
101
|
my $list= $EXPORT_TAGS_PKG_CACHE{$class}{$tagname}; |
530
|
|
|
|
|
|
|
$list= $self->_exporter_build_tag_cache($tagname) |
531
|
36
|
50
|
66
|
|
|
196
|
unless $list or exists $EXPORT_TAGS_PKG_CACHE{$class}{$tagname}; |
532
|
36
|
|
|
|
|
166
|
return $list; |
533
|
|
|
|
|
|
|
} |
534
|
|
|
|
|
|
|
|
535
|
|
|
|
|
|
|
sub _exporter_is_excluded { |
536
|
20
|
|
|
20
|
|
30
|
my ($self, $symbol)= @_; |
537
|
20
|
50
|
33
|
|
|
72
|
return unless ref $self && (my $not= $self->{not}); |
538
|
|
|
|
|
|
|
# N^2 exclusion iteration isn't cool, but doing something smarter requires a |
539
|
|
|
|
|
|
|
# lot more setup that probably won't pay off for the usual tiny lists of 'not'. |
540
|
20
|
100
|
|
|
|
51
|
for my $filter (ref $not eq 'ARRAY'? @$not : ($not)) { |
541
|
22
|
100
|
|
|
|
54
|
if (!ref $filter) { |
|
|
100
|
|
|
|
|
|
|
|
50
|
|
|
|
|
|
542
|
8
|
100
|
|
|
|
21
|
return 1 if $symbol eq $filter; |
543
|
|
|
|
|
|
|
} |
544
|
|
|
|
|
|
|
elsif (ref $filter eq 'Regexp') { |
545
|
6
|
100
|
|
|
|
39
|
return 1 if $symbol =~ $filter; |
546
|
|
|
|
|
|
|
} |
547
|
|
|
|
|
|
|
elsif (ref $filter eq 'CODE') { |
548
|
8
|
|
100
|
|
|
18
|
&$filter && return 1 for $symbol; |
549
|
|
|
|
|
|
|
} |
550
|
0
|
|
|
|
|
0
|
else { $croak->("Unhandled 'not' filter: $filter") } |
551
|
|
|
|
|
|
|
} |
552
|
10
|
|
|
|
|
36
|
return; |
553
|
|
|
|
|
|
|
} |
554
|
|
|
|
|
|
|
|
555
|
|
|
|
|
|
|
sub exporter_autoload_tag { |
556
|
12
|
|
|
12
|
1
|
33
|
my ($self, $tagname)= @_; |
557
|
12
|
|
|
|
|
27
|
return; |
558
|
|
|
|
|
|
|
} |
559
|
|
|
|
|
|
|
|
560
|
|
|
|
|
|
|
sub exporter_also_import { |
561
|
3
|
|
|
3
|
1
|
47
|
my $self= shift; |
562
|
3
|
50
|
33
|
|
|
15
|
ref $self && $self->{todo} or $croak->('exporter_also_import can only be called on $self during an import()'); |
563
|
3
|
|
|
|
|
6
|
push @{$self->{todo}}, @_; |
|
3
|
|
|
|
|
24
|
|
564
|
|
|
|
|
|
|
} |
565
|
|
|
|
|
|
|
|
566
|
|
|
|
|
|
|
my %method_attrs; |
567
|
|
|
|
|
|
|
sub FETCH_CODE_ATTRIBUTES { |
568
|
0
|
|
|
0
|
|
0
|
my ($class, $coderef)= (shift, shift); |
569
|
0
|
|
|
|
|
0
|
my $super= $class->next::can; |
570
|
0
|
0
|
|
|
|
0
|
return @{$method_attrs{$class}{$coderef} || []}, |
|
0
|
0
|
|
|
|
0
|
|
571
|
|
|
|
|
|
|
($super? $super->($class, $coderef, @_) : ()); |
572
|
|
|
|
|
|
|
} |
573
|
|
|
|
|
|
|
sub MODIFY_CODE_ATTRIBUTES { |
574
|
20
|
|
|
20
|
|
1011
|
my ($class, $coderef)= (shift, shift); |
575
|
20
|
|
|
|
|
89
|
my @unknown= grep !$class->_exporter_process_attribute($coderef, $_), @_; |
576
|
20
|
|
|
|
|
82
|
my $super= $class->next::can; |
577
|
20
|
50
|
|
|
|
312
|
return $super? $super->($class, $coderef, @unknown) : @unknown; |
578
|
|
|
|
|
|
|
} |
579
|
|
|
|
|
|
|
|
580
|
|
|
|
|
|
|
sub _exporter_get_coderef_name { |
581
|
|
|
|
|
|
|
# Sub::Identify has an XS version that we take advantage of if available |
582
|
|
|
|
|
|
|
my $impl= (eval 'require Sub::Identify;1')? sub { |
583
|
0
|
0
|
|
0
|
|
|
&Sub::Identify::sub_name |
584
|
|
|
|
|
|
|
or $croak->("Can't determine export name of $_[0]"); |
585
|
|
|
|
|
|
|
} |
586
|
0
|
0
|
|
0
|
|
|
: do { |
587
|
0
|
|
|
|
|
|
require B; |
588
|
|
|
|
|
|
|
sub { |
589
|
17
|
|
|
17
|
|
62
|
my $cv= &B::svref_2object; |
|
0
|
|
|
|
|
|
|
590
|
17
|
50
|
33
|
|
|
320
|
$cv->isa('B::CV') && !$cv->GV->isa('B::SPECIAL') && $cv->GV->NAME |
|
0
|
0
|
33
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
|
0
|
|
|
|
|
591
|
|
|
|
|
|
|
or $croak->("Can't determine export name of $_[0]"); |
592
|
0
|
|
|
|
|
|
}; |
593
|
|
|
|
|
|
|
}; |
594
|
0
|
|
|
|
|
|
*_exporter_get_coderef_name= $impl; |
595
|
0
|
|
|
|
|
|
$impl->(shift); |
596
|
|
|
|
|
|
|
} |
597
|
|
|
|
|
|
|
|
598
|
|
|
|
|
|
|
sub _exporter_get_ref_to_package_var { |
599
|
9
|
|
|
9
|
|
20
|
my ($class, $sigil, $name)= @_; |
600
|
9
|
50
|
|
|
|
19
|
unless (defined $name) { |
601
|
0
|
0
|
|
|
|
0
|
($sigil, $name)= ($_[1] =~ /^([\$\@\%\*\&]?)(\w+)$/) |
602
|
|
|
|
|
|
|
or $croak->("'$_[1]' is not an allowed variable name"); |
603
|
|
|
|
|
|
|
} |
604
|
9
|
|
|
|
|
20
|
my $reftype= $sigil_to_reftype{$sigil}; |
605
|
9
|
50
|
|
|
|
12
|
return undef unless ${$class.'::'}{$name}; |
|
9
|
|
|
|
|
30
|
|
606
|
9
|
100
|
|
|
|
18
|
return $reftype eq 'GLOB'? \*{$class.'::'.$name} : *{$class.'::'.$name}{$reftype}; |
|
1
|
|
|
|
|
6
|
|
|
8
|
|
|
|
|
38
|
|
607
|
|
|
|
|
|
|
} |
608
|
|
|
|
|
|
|
|
609
|
|
|
|
|
|
|
sub _exporter_process_attribute { |
610
|
21
|
|
|
21
|
|
47
|
my ($class, $coderef, $attr)= @_; |
611
|
21
|
50
|
|
|
|
123
|
if ($attr =~ /^Export(?:\(\s*(.*?)\s*\))?$/) { |
612
|
21
|
|
|
|
|
39
|
my (%tags, $subname, @export_names); |
613
|
|
|
|
|
|
|
# If given a list in parenthesees, split on space and proces each. Else use the name of the sub itself. |
614
|
21
|
100
|
|
|
|
96
|
for my $token ($1? split(/\s+/, $1) : ()) { |
615
|
24
|
100
|
|
|
|
128
|
if ($token =~ /^:(.*)$/) { |
|
|
100
|
|
|
|
|
|
|
|
100
|
|
|
|
|
|
|
|
50
|
|
|
|
|
|
616
|
7
|
|
|
|
|
23
|
$tags{$1}++; # save tags until we have the export_names |
617
|
|
|
|
|
|
|
} |
618
|
|
|
|
|
|
|
elsif ($token =~ /^\w+$/) { |
619
|
6
|
|
|
|
|
13
|
push @export_names, $token; |
620
|
6
|
|
|
|
|
9
|
${$class.'::EXPORT'}{$token}= $coderef; |
|
6
|
|
|
|
|
25
|
|
621
|
|
|
|
|
|
|
} |
622
|
|
|
|
|
|
|
elsif ($token =~ /^-(\w*)(?:\(([0-9]+|\*|\?)\))?$/) { |
623
|
4
|
|
33
|
|
|
18
|
$subname ||= _exporter_get_coderef_name($coderef); |
624
|
4
|
50
|
|
|
|
20
|
push @export_names, length $1? $token : "-$subname"; |
625
|
4
|
|
|
|
|
24
|
$class->exporter_register_option(substr($export_names[-1],1), $subname, $2); |
626
|
|
|
|
|
|
|
} |
627
|
|
|
|
|
|
|
elsif (my($sym, $name)= ($token =~ /^=([\&\$\@\%\*:]?(\w*))$/)) { |
628
|
7
|
|
33
|
|
|
29
|
$subname ||= _exporter_get_coderef_name($coderef); |
629
|
7
|
100
|
|
|
|
16
|
my $export_name= length $name? $sym : do { |
630
|
4
|
|
|
|
|
16
|
(my $x= $subname) =~ s/^_generate[A-Za-z]*_//; |
631
|
4
|
|
|
|
|
10
|
$sym . $x |
632
|
|
|
|
|
|
|
}; |
633
|
7
|
|
|
|
|
14
|
$export_name =~ s/^[&]//; |
634
|
7
|
|
|
|
|
36
|
$class->exporter_register_generator($export_name, $subname); |
635
|
7
|
|
|
|
|
21
|
push @export_names, $export_name; |
636
|
|
|
|
|
|
|
} |
637
|
|
|
|
|
|
|
else { |
638
|
0
|
|
|
|
|
0
|
$croak->("Invalid export notation '$token'"); |
639
|
|
|
|
|
|
|
} |
640
|
|
|
|
|
|
|
} |
641
|
21
|
100
|
|
|
|
53
|
if (!@export_names) { # if list was empty or only tags... |
642
|
6
|
|
|
|
|
14
|
push @export_names, _exporter_get_coderef_name($coderef); |
643
|
6
|
|
|
|
|
15
|
${$class.'::EXPORT'}{$export_names[-1]}= $coderef; |
|
6
|
|
|
|
|
32
|
|
644
|
|
|
|
|
|
|
} |
645
|
21
|
|
|
|
|
69
|
$class->exporter_register_tag_members($_, @export_names) for keys %tags; |
646
|
21
|
|
|
|
|
77
|
return 1; |
647
|
|
|
|
|
|
|
} |
648
|
0
|
|
|
|
|
0
|
return; |
649
|
|
|
|
|
|
|
} |
650
|
|
|
|
|
|
|
|
651
|
|
|
|
|
|
|
sub exporter_setup { |
652
|
28
|
|
|
28
|
0
|
56
|
my ($self, $version)= @_; |
653
|
28
|
|
|
|
|
44
|
push @{$self->{into}.'::ISA'}, ref($self); |
|
28
|
|
|
|
|
295
|
|
654
|
28
|
|
|
|
|
159
|
strict->import; |
655
|
28
|
|
|
|
|
263
|
warnings->import; |
656
|
28
|
100
|
|
|
|
183
|
if ($version == 1) { |
|
|
50
|
|
|
|
|
|
657
|
|
|
|
|
|
|
# Declare 'our %EXPORT' |
658
|
5
|
|
|
|
|
9
|
*{$self->{into}.'::EXPORT'}= \%{$self->{into}.'::EXPORT'}; |
|
5
|
|
|
|
|
17
|
|
|
5
|
|
|
|
|
21
|
|
659
|
|
|
|
|
|
|
# Make @EXPORT and $EXPORT_TAGS{default} be the same arrayref. |
660
|
|
|
|
|
|
|
# Allow either one to have been declared already. |
661
|
5
|
|
|
|
|
9
|
my $tags= \%{$self->{into}.'::EXPORT_TAGS'}; |
|
5
|
|
|
|
|
19
|
|
662
|
0
|
|
|
|
|
0
|
*{$self->{into}.'::EXPORT'}= $tags->{default} |
663
|
5
|
50
|
|
|
|
17
|
if ref $tags->{default} eq 'ARRAY'; |
664
|
5
|
|
50
|
|
|
23
|
$tags->{default} ||= \@{$self->{into}.'::EXPORT'}; |
|
5
|
|
|
|
|
24
|
|
665
|
|
|
|
|
|
|
# Export the 'export' function. |
666
|
5
|
|
|
|
|
7
|
*{$self->{into}.'::export'}= \&_exporter_export_from_caller; |
|
5
|
|
|
|
|
47
|
|
667
|
|
|
|
|
|
|
} |
668
|
|
|
|
|
|
|
elsif ($version) { |
669
|
0
|
|
|
|
|
0
|
$croak->("Unknown export API version $version"); |
670
|
|
|
|
|
|
|
} |
671
|
|
|
|
|
|
|
} |
672
|
|
|
|
|
|
|
|
673
|
|
|
|
|
|
|
sub _exporter_export_from_caller { |
674
|
18
|
|
|
18
|
|
19294
|
unshift @_, scalar caller; |
675
|
18
|
|
|
|
|
115
|
goto $_[0]->can('exporter_export'); |
676
|
|
|
|
|
|
|
} |
677
|
|
|
|
|
|
|
sub exporter_export { |
678
|
18
|
|
|
18
|
1
|
39
|
my $class= shift; |
679
|
18
|
|
|
|
|
33
|
my ($export, $is_gen, $sigil, $name, $args, $ref); |
680
|
18
|
|
|
|
|
54
|
arg_loop: for (my $i= 0; $i < @_;) { |
681
|
24
|
|
|
|
|
46
|
$export= $_[$i++]; |
682
|
24
|
50
|
|
|
|
50
|
ref $export and $croak->("Expected non-ref export name at argument $i"); |
683
|
|
|
|
|
|
|
# If they provided the ref, capture it from arg list. |
684
|
24
|
100
|
|
|
|
57
|
$ref= ref $_[$i]? $_[$i++] : undef; |
685
|
|
|
|
|
|
|
# Common case first - ordinary functions |
686
|
24
|
100
|
|
|
|
196
|
if ($export =~ /^\w+$/) { |
|
|
100
|
|
|
|
|
|
|
|
100
|
|
|
|
|
|
|
|
50
|
|
|
|
|
|
687
|
9
|
50
|
|
|
|
18
|
if ($ref) { |
688
|
0
|
0
|
|
|
|
0
|
ref $ref eq 'CODE' or $croak->("Expected CODEref following '$export'"); |
689
|
|
|
|
|
|
|
} else { |
690
|
9
|
50
|
|
|
|
34
|
$ref= $class->can($export) or $croak->("Export '$export' not found in $class"); |
691
|
|
|
|
|
|
|
} |
692
|
9
|
|
|
|
|
15
|
${$class.'::EXPORT'}{$export}= $ref; |
|
9
|
|
|
|
|
65
|
|
693
|
|
|
|
|
|
|
} |
694
|
|
|
|
|
|
|
# Next, check for generators |
695
|
|
|
|
|
|
|
elsif (($is_gen, $sigil, $name)= ($export =~ /^(=?)([\$\@\%\*]?)(\w+)$/)) { |
696
|
13
|
100
|
|
|
|
31
|
if ($is_gen) { |
697
|
4
|
100
|
|
|
|
10
|
if ($ref) { |
698
|
|
|
|
|
|
|
# special case, remove ref on method name (since it isn't possible to pass |
699
|
|
|
|
|
|
|
# a plain scalar as the second asrgument) |
700
|
1
|
50
|
|
|
|
6
|
$ref= $$ref if ref $ref eq 'SCALAR'; |
701
|
1
|
|
|
|
|
6
|
$class->exporter_register_generator($sigil.$name, $ref); |
702
|
|
|
|
|
|
|
} else { |
703
|
3
|
|
|
|
|
6
|
for (@{ $sigil_to_generator_prefix{$sigil} }) { |
|
3
|
|
|
|
|
11
|
|
704
|
5
|
|
|
|
|
17
|
my $method= $_ . $name; |
705
|
5
|
100
|
|
|
|
27
|
if ($class->can($method)) { |
706
|
3
|
|
|
|
|
18
|
$class->exporter_register_generator($sigil.$name, $method); |
707
|
3
|
|
|
|
|
52
|
next arg_loop; |
708
|
|
|
|
|
|
|
} |
709
|
|
|
|
|
|
|
} |
710
|
0
|
|
|
|
|
0
|
$croak->("Export '$export' not found in package $class, nor a generator $sigil_to_generator_prefix{$sigil}[0]"); |
711
|
|
|
|
|
|
|
} |
712
|
|
|
|
|
|
|
} |
713
|
|
|
|
|
|
|
else { |
714
|
9
|
|
33
|
|
|
39
|
$ref ||= $class->_exporter_get_ref_to_package_var($sigil, $name); |
715
|
9
|
50
|
33
|
|
|
39
|
ref $ref eq $sigil_to_reftype{$sigil} or (ref $ref eq 'REF' && $sigil eq '$') |
|
|
|
66
|
|
|
|
|
716
|
|
|
|
|
|
|
or $croak->("'$export' should be $sigil_to_reftype{$sigil} but you supplied ".ref($ref)); |
717
|
9
|
|
|
|
|
15
|
${$class.'::EXPORT'}{$sigil.$name}= $ref; |
|
9
|
|
|
|
|
144
|
|
718
|
|
|
|
|
|
|
} |
719
|
|
|
|
|
|
|
} |
720
|
|
|
|
|
|
|
# Tags ":foo" |
721
|
|
|
|
|
|
|
elsif (($is_gen, $name)= ($export =~ /^(=?):(\w+)$/)) { |
722
|
1
|
50
|
33
|
|
|
5
|
if ($is_gen && !$ref) { |
723
|
0
|
|
|
|
|
0
|
my $gen= $sigil_to_generator_prefix{':'}.$name; |
724
|
0
|
0
|
|
|
|
0
|
$class->can($gen) |
725
|
|
|
|
|
|
|
or $croak->("Can't find generator for tag $name : '$gen'"); |
726
|
0
|
|
|
|
|
0
|
$ref= $gen; |
727
|
|
|
|
|
|
|
} |
728
|
1
|
50
|
|
|
|
9
|
ref $ref eq 'ARRAY'? $class->exporter_register_tag_members($name, @$ref) |
729
|
|
|
|
|
|
|
: $class->exporter_register_generator($export, $ref); |
730
|
|
|
|
|
|
|
} |
731
|
|
|
|
|
|
|
# Options "-foo" or "-foo(3)" |
732
|
|
|
|
|
|
|
elsif (($name, $args)= ($export =~ /^-(\w+)(?:\(([0-9]+|\*|\?)\))?$/)) { |
733
|
1
|
50
|
|
|
|
4
|
if ($ref) { |
734
|
0
|
0
|
0
|
|
|
0
|
ref $ref eq 'CODE' or (ref $ref eq 'SCALAR' and $class->can($ref= $$ref)) |
|
|
|
0
|
|
|
|
|
735
|
|
|
|
|
|
|
or $croak->("Option '$export' must be followed by coderef or method name as scalar ref"); |
736
|
|
|
|
|
|
|
} else { |
737
|
1
|
50
|
|
|
|
6
|
$class->can($name) |
738
|
|
|
|
|
|
|
or $croak->("Option '$export' defaults to a method '$name' which does not exist on $class"); |
739
|
1
|
|
|
|
|
3
|
$ref= $name; |
740
|
|
|
|
|
|
|
} |
741
|
1
|
|
|
|
|
9
|
$class->exporter_register_option($name, $ref, $args); |
742
|
|
|
|
|
|
|
} |
743
|
|
|
|
|
|
|
else { |
744
|
0
|
|
|
|
|
|
$croak->("'$export' is not a valid export syntax"); |
745
|
|
|
|
|
|
|
} |
746
|
|
|
|
|
|
|
} |
747
|
|
|
|
|
|
|
} |
748
|
|
|
|
|
|
|
|
749
|
|
|
|
|
|
|
1; |
750
|
|
|
|
|
|
|
|
751
|
|
|
|
|
|
|
__END__ |