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For t/bug-md-11.t
  Run on Fri Mar 8 13:27:24 2024
Reported on Fri Mar 8 13:30:23 2024

Filename/home/micha/.plenv/versions/5.38.2/lib/perl5/5.38.2/base.pm
StatementsExecuted 160 statements in 1.06ms
Subroutines
Calls P F Exclusive
Time
Inclusive
Time
Subroutine
444116µs164µsbase::::import base::import
41117µs26µsbase::::__ANON__[:76] base::__ANON__[:76]
11111µs11µsTest2::Util::Facets2Legacy::::BEGIN@1Test2::Util::Facets2Legacy::BEGIN@1
4118µs8µsbase::::has_fields base::has_fields
4116µs6µsbase::::has_attr base::has_attr
1114µs8µsbase::::BEGIN@4 base::BEGIN@4
0000s0sbase::::__ANON__[:133] base::__ANON__[:133]
0000s0sbase::::__ANON__[:134] base::__ANON__[:134]
0000s0sbase::::__ANON__[:53] base::__ANON__[:53]
0000s0sbase::::__ANON__[:60] base::__ANON__[:60]
0000s0sbase::::__ANON__[:68] base::__ANON__[:68]
0000s0sbase::__inc::scope_guard::::DESTROY base::__inc::scope_guard::DESTROY
0000s0sbase::__inc::::unhook base::__inc::unhook
0000s0sbase::::get_attr base::get_attr
0000s0sbase::::inherit_fields base::inherit_fields
Call graph for these subroutines as a Graphviz dot language file.
Line State
ments
Time
on line
Calls Time
in subs
Code
1239µs111µs
# spent 11µs within Test2::Util::Facets2Legacy::BEGIN@1 which was called: # once (11µs+0s) by Test2::Util::Facets2Legacy::BEGIN@10 at line 1
use 5.008;
# spent 11µs making 1 call to Test2::Util::Facets2Legacy::BEGIN@1
2package base;
3
42847µs212µs
# spent 8µs (4+4) within base::BEGIN@4 which was called: # once (4µs+4µs) by Test2::Util::Facets2Legacy::BEGIN@10 at line 4
use strict 'vars';
# spent 8µs making 1 call to base::BEGIN@4 # spent 4µs making 1 call to strict::import
51400nsour $VERSION = '2.27';
61700ns$VERSION =~ tr/_//d;
7
8# simplest way to avoid indexing of the package: no package statement
9sub base::__inc::unhook { @INC = grep !(ref eq 'CODE' && $_ == $_[0]), @INC }
10# instance is blessed array of coderefs to be removed from @INC at scope exit
11sub base::__inc::scope_guard::DESTROY { base::__inc::unhook $_ for @{$_[0]} }
12
13# constant.pm is slow
14sub SUCCESS () { 1 }
15
16sub PUBLIC () { 2**0 }
17sub PRIVATE () { 2**1 }
18sub INHERITED () { 2**2 }
19sub PROTECTED () { 2**3 }
20
21
221500nsmy $Fattr = \%fields::attr;
23
24
# spent 8µs within base::has_fields which was called 4 times, avg 2µs/call: # 4 times (8µs+0s) by base::import at line 177, avg 2µs/call
sub has_fields {
2542µs my($base) = shift;
2643µs my $fglob = ${"$base\::"}{FIELDS};
2745µs return( ($fglob && 'GLOB' eq ref($fglob) && *$fglob{HASH}) ? 1 : 0 );
28}
29
30
# spent 6µs within base::has_attr which was called 4 times, avg 1µs/call: # 4 times (6µs+0s) by base::import at line 177, avg 1µs/call
sub has_attr {
314800ns my($proto) = shift;
3242µs my($class) = ref $proto || $proto;
3345µs return exists $Fattr->{$class};
34}
35
36sub get_attr {
37 $Fattr->{$_[0]} = [1] unless $Fattr->{$_[0]};
38 return $Fattr->{$_[0]};
39}
40
411400nsif ($] < 5.009) {
42 *get_fields = sub {
43 # Shut up a possible typo warning.
44 () = \%{$_[0].'::FIELDS'};
45 my $f = \%{$_[0].'::FIELDS'};
46
47 # should be centralized in fields? perhaps
48 # fields::mk_FIELDS_be_OK. Peh. As long as %{ $package . '::FIELDS' }
49 # is used here anyway, it doesn't matter.
50 bless $f, 'pseudohash' if (ref($f) ne 'pseudohash');
51
52 return $f;
53 }
54}
55else {
56 *get_fields = sub {
57 # Shut up a possible typo warning.
58 () = \%{$_[0].'::FIELDS'};
59 return \%{$_[0].'::FIELDS'};
60 }
6112µs}
62
631200nsif ($] < 5.008) {
64 *_module_to_filename = sub {
65 (my $fn = $_[0]) =~ s!::!/!g;
66 $fn .= '.pm';
67 return $fn;
68 }
69}
70else {
71
# spent 26µs (17+9) within base::__ANON__[/home/micha/.plenv/versions/5.38.2/lib/perl5/5.38.2/base.pm:76] which was called 4 times, avg 7µs/call: # 4 times (17µs+9µs) by base::import at line 103, avg 7µs/call
*_module_to_filename = sub {
72414µs47µs (my $fn = $_[0]) =~ s!::!/!g;
# spent 7µs making 4 calls to CORE::subst, avg 2µs/call
7341µs $fn .= '.pm';
7447µs42µs utf8::encode($fn);
# spent 2µs making 4 calls to utf8::encode, avg 550ns/call
7546µs return $fn;
76 }
7712µs}
78
79
80
# spent 164µs (116+48) within base::import which was called 4 times, avg 41µs/call: # once (30µs+16µs) by Spreadsheet::ParseXLSX::Decryptor::Standard::BEGIN@10 at line 10 of /home/micha/Projekt/spreadsheet-parsexlsx/lib/Spreadsheet/ParseXLSX/Decryptor/Standard.pm # once (35µs+10µs) by Spreadsheet::ParseXLSX::Decryptor::Agile::BEGIN@10 at line 10 of /home/micha/Projekt/spreadsheet-parsexlsx/lib/Spreadsheet/ParseXLSX/Decryptor/Agile.pm # once (30µs+11µs) by Test2::Util::Facets2Legacy::BEGIN@10 at line 10 of Test2/Util/Facets2Legacy.pm # once (21µs+10µs) by Spreadsheet::ParseXLSX::Cell::BEGIN@11 at line 11 of /home/micha/Projekt/spreadsheet-parsexlsx/lib/Spreadsheet/ParseXLSX/Cell.pm
sub import {
8141µs my $class = shift;
82
8341µs return SUCCESS unless @_;
84
85 # List of base classes from which we will inherit %FIELDS.
864700ns my $fields_base;
87
8842µs my $inheritor = caller(0);
89
904600ns my @bases;
9142µs foreach my $base (@_) {
9241µs if ( $inheritor eq $base ) {
93 warn "Class '$inheritor' tried to inherit from itself\n";
94 }
95
96442µs46µs next if grep $_->isa($base), ($inheritor, @bases);
# spent 6µs making 4 calls to UNIVERSAL::isa, avg 2µs/call
97
98 # Following blocks help isolate $SIG{__DIE__} and @INC changes
99 {
10081µs my $sigdie;
101 {
10286µs local $SIG{__DIE__};
10345µs426µs my $fn = _module_to_filename($base);
# spent 26µs making 4 calls to base::__ANON__[base.pm:76], avg 7µs/call
1044400ns my $dot_hidden;
10541µs eval {
1064200ns my $guard;
10741µs if ($INC[-1] eq '.' && %{"$base\::"}) {
108 # So: the package already exists => this an optional load
109 # And: there is a dot at the end of @INC => we want to hide it
110 # However: we only want to hide it during our *own* require()
111 # (i.e. without affecting nested require()s).
112 # So we add a hook to @INC whose job is to hide the dot, but which
113 # first checks checks the callstack depth, because within nested
114 # require()s the callstack is deeper.
115 # Since CORE::GLOBAL::require makes it unknowable in advance what
116 # the exact relevant callstack depth will be, we have to record it
117 # inside a hook. So we put another hook just for that at the front
118 # of @INC, where it's guaranteed to run -- immediately.
119 # The dot-hiding hook does its job by sitting directly in front of
120 # the dot and removing itself from @INC when reached. This causes
121 # the dot to move up one index in @INC, causing the loop inside
122 # pp_require() to skip it.
123 # Loaded coded may disturb this precise arrangement, but that's OK
124 # because the hook is inert by that time. It is only active during
125 # the top-level require(), when @INC is in our control. The only
126 # possible gotcha is if other hooks already in @INC modify @INC in
127 # some way during that initial require().
128 # Note that this jiggery hookery works just fine recursively: if
129 # a module loaded via base.pm uses base.pm itself, there will be
130 # one pair of hooks in @INC per base::import call frame, but the
131 # pairs from different nestings do not interfere with each other.
132 my $lvl;
133 unshift @INC, sub { return if defined $lvl; 1 while defined caller ++$lvl; () };
134 splice @INC, -1, 0, sub { return if defined caller $lvl; ++$dot_hidden, &base::__inc::unhook; () };
135 $guard = bless [ @INC[0,-2] ], 'base::__inc::scope_guard';
136 }
13742µs require $fn
138 };
1394600ns if ($dot_hidden && (my @fn = grep -e && !( -d _ || -b _ ), $fn.'c', $fn)) {
140 require Carp;
141 Carp::croak(<<ERROR);
142Base class package "$base" is not empty but "$fn[0]" exists in the current directory.
143 To help avoid security issues, base.pm now refuses to load optional modules
144 from the current working directory when it is the last entry in \@INC.
145 If your software worked on previous versions of Perl, the best solution
146 is to use FindBin to detect the path properly and to add that path to
147 \@INC. As a last resort, you can re-enable looking in the current working
148 directory by adding "use lib '.'" to your code.
149ERROR
150 }
151 # Only ignore "Can't locate" errors from our eval require.
152 # Other fatal errors (syntax etc) must be reported.
153 #
154 # changing the check here is fragile - if the check
155 # here isn't catching every error you want, you should
156 # probably be using parent.pm, which doesn't try to
157 # guess whether require is needed or failed,
158 # see [perl #118561]
15946µs4900ns die if $@ && $@ !~ /^Can't locate \Q$fn\E .*? at .* line [0-9]+(?:, <[^>]*> (?:line|chunk) [0-9]+)?\.\n\z/s
# spent 900ns making 4 calls to CORE::match, avg 225ns/call
160 || $@ =~ /Compilation failed in require at .* line [0-9]+(?:, <[^>]*> (?:line|chunk) [0-9]+)?\.\n\z/;
16144µs unless (%{"$base\::"}) {
162 require Carp;
163 local $" = " ";
164 Carp::croak(<<ERROR);
165Base class package "$base" is empty.
166 (Perhaps you need to 'use' the module which defines that package first,
167 or make that module available in \@INC (\@INC contains: @INC).
168ERROR
169 }
17048µs $sigdie = $SIG{__DIE__} || undef;
171 }
172 # Make sure a global $SIG{__DIE__} makes it out of the localization.
17341µs $SIG{__DIE__} = $sigdie if defined $sigdie;
174 }
17541µs push @bases, $base;
176
17747µs814µs if ( has_fields($base) || has_attr($base) ) {
# spent 8µs making 4 calls to base::has_fields, avg 2µs/call # spent 6µs making 4 calls to base::has_attr, avg 1µs/call
178 # No multiple fields inheritance *suck*
179 if ($fields_base) {
180 require Carp;
181 Carp::croak("Can't multiply inherit fields");
182 } else {
183 $fields_base = $base;
184 }
185 }
186 }
187 # Save this until the end so it's all or nothing if the above loop croaks.
188419µs push @{"$inheritor\::ISA"}, @bases;
189
19048µs if( defined $fields_base ) {
191 inherit_fields($inheritor, $fields_base);
192 }
193}
194
195
196sub inherit_fields {
197 my($derived, $base) = @_;
198
199 return SUCCESS unless $base;
200
201 my $battr = get_attr($base);
202 my $dattr = get_attr($derived);
203 my $dfields = get_fields($derived);
204 my $bfields = get_fields($base);
205
206 $dattr->[0] = @$battr;
207
208 if( keys %$dfields ) {
209 warn <<"END";
210$derived is inheriting from $base but already has its own fields!
211This will cause problems. Be sure you use base BEFORE declaring fields.
212END
213
214 }
215
216 # Iterate through the base's fields adding all the non-private
217 # ones to the derived class. Hang on to the original attribute
218 # (Public, Private, etc...) and add Inherited.
219 # This is all too complicated to do efficiently with add_fields().
220 while (my($k,$v) = each %$bfields) {
221 my $fno;
222 if ($fno = $dfields->{$k} and $fno != $v) {
223 require Carp;
224 Carp::croak ("Inherited fields can't override existing fields");
225 }
226
227 if( $battr->[$v] & PRIVATE ) {
228 $dattr->[$v] = PRIVATE | INHERITED;
229 }
230 else {
231 $dattr->[$v] = INHERITED | $battr->[$v];
232 $dfields->{$k} = $v;
233 }
234 }
235
236 foreach my $idx (1..$#{$battr}) {
237 next if defined $dattr->[$idx];
238 $dattr->[$idx] = $battr->[$idx] & INHERITED;
239 }
240}
241
242
24314µs1;
244
245__END__