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  Run on Fri Jan 8 14:31:06 2016
Reported on Fri Jan 8 14:31:36 2016

Filename/usr/share/perl5/Class/C3/Componentised.pm
StatementsExecuted 4200 statements in 153ms
Subroutines
Calls P F Exclusive
Time		 Inclusive
Time		 Subroutine
72486254ms1.34sClass::C3::Componentised::::ensure_class_loadedClass::C3::Componentised::ensure_class_loaded (recurses: max depth 3, inclusive time 119ms)
1111.47ms1.59msClass::C3::Componentised::::BEGIN@48Class::C3::Componentised::BEGIN@48
1611405µs405µsClass::C3::Componentised::::__ANON__[:199]Class::C3::Componentised::__ANON__[:199]
421150µs71.0msClass::C3::Componentised::::_load_componentsClass::C3::Componentised::_load_components (recurses: max depth 2, inclusive time 39.6ms)
333102µs71.0msClass::C3::Componentised::::load_componentsClass::C3::Componentised::load_components (recurses: max depth 1, inclusive time 25.8ms)
11122µs13.9msClass::C3::Componentised::::load_own_componentsClass::C3::Componentised::load_own_components
11113µs20µsClass::C3::Componentised::::BEGIN@40Class::C3::Componentised::BEGIN@40
11113µs1.72msClass::C3::Componentised::::load_optional_classClass::C3::Componentised::load_optional_class
11112µs23µsClass::C3::Componentised::::BEGIN@133Class::C3::Componentised::BEGIN@133
11111µs17µsClass::C3::Componentised::::BEGIN@198Class::C3::Componentised::BEGIN@198
1118µs12µsClass::C3::Componentised::::BEGIN@41Class::C3::Componentised::BEGIN@41
1118µs8µsClass::C3::Componentised::::BEGIN@50Class::C3::Componentised::BEGIN@50
1116µs6µsClass::C3::Componentised::::BEGIN@51Class::C3::Componentised::BEGIN@51
0000s0sClass::C3::Componentised::::__ANON__[:204]Class::C3::Componentised::__ANON__[:204]
0000s0sClass::C3::Componentised::::ensure_class_foundClass::C3::Componentised::ensure_class_found
0000s0sClass::C3::Componentised::::inject_baseClass::C3::Componentised::inject_base
0000s0sClass::C3::Componentised::::load_optional_componentsClass::C3::Componentised::load_optional_components
Call graph for these subroutines as a Graphviz dot language file.
Line State
ments		 Time
on line		 Calls Time
in subs		 Code
1package Class::C3::Componentised;
2
3=head1 NAME
4
5Class::C3::Componentised - load mix-ins or components to your C3-based class
6
7=head1 DESCRIPTION
8
9Load mix-ins or components to your C3-based class.
10
11=head1 SYNOPSIS
12
13 package MyModule;
14
15 use strict;
16 use warnings;
17
18 use base 'Class::C3::Componentised';
19
20 sub component_base_class { "MyModule::Component" }
21
22 package main;
23
24 MyModule->load_components( qw/Foo Bar/ );
25 # Will load MyModule::Component::Foo and MyModule::Component::Bar
26
27=head1 DESCRIPTION
28
29This will inject base classes to your module using the L<Class::C3> method
30resolution order.
31
32Please note: these are not plugins that can take precedence over methods
33declared in MyModule. If you want something like that, consider
34L<MooseX::Object::Pluggable>.
35
36=head1 METHODS
37
38=cut
39
40235µs227µs
# spent 20µs (13+7) within Class::C3::Componentised::BEGIN@40 which was called: # once (13µs+7µs) by base::import at line 40
use strict;
# spent 20µs making 1 call to Class::C3::Componentised::BEGIN@40 # spent 7µs making 1 call to strict::import
41233µs216µs
# spent 12µs (8+4) within Class::C3::Componentised::BEGIN@41 which was called: # once (8µs+4µs) by base::import at line 41
use warnings;
# spent 12µs making 1 call to Class::C3::Componentised::BEGIN@41 # spent 4µs making 1 call to warnings::import
42
43# This will prime the Class::C3 namespace (either by loading it proper on 5.8
44# or by installing compat shims on 5.10+). A user might have a reasonable
45# expectation that using Class::C3::<something> will give him access to
46# Class::C3 itself, and this module has been providing this historically.
47# Therefore leaving it in indefinitely.
482154µs11.59ms
# spent 1.59ms (1.47+121µs) within Class::C3::Componentised::BEGIN@48 which was called: # once (1.47ms+121µs) by base::import at line 48
use MRO::Compat;
# spent 1.59ms making 1 call to Class::C3::Componentised::BEGIN@48
49
50236µs18µs
# spent 8µs within Class::C3::Componentised::BEGIN@50 which was called: # once (8µs+0s) by base::import at line 50
use Carp ();
# spent 8µs making 1 call to Class::C3::Componentised::BEGIN@50
512407µs16µs
# spent 6µs within Class::C3::Componentised::BEGIN@51 which was called: # once (6µs+0s) by base::import at line 51
use List::Util ();
# spent 6µs making 1 call to Class::C3::Componentised::BEGIN@51
52
531500nsour $VERSION = '1.001000';
54
5519µs12µs$VERSION = eval $VERSION if $VERSION =~ /_/; # numify for warning-free dev releases
# spent 2µs making 1 call to Class::C3::Componentised::CORE:match
56
5716µs12µsmy $invalid_class = qr/(?: \b:\b | \:{3,} | \:\:$ )/x;
# spent 2µs making 1 call to Class::C3::Componentised::CORE:qr
58
59=head2 load_components( @comps )
60
61Loads the given components into the current module. If a module begins with a
62C<+> character, it is taken to be a fully qualified class name, otherwise
63C<< $class->component_base_class >> is prepended to it.
64
65Calling this will call C<Class::C3::reinitialize>.
66
67=cut
68
69
# spent 71.0ms (102µs+70.9) within Class::C3::Componentised::load_components which was called 3 times, avg 23.7ms/call: # once (46µs+71.0ms) by base::import at line 8 of DBIx/Class/Core.pm # once (33µs+-33µs) by Class::C3::Componentised::ensure_class_loaded at line 9 of DBIx/Class/Relationship/Helpers.pm # once (23µs+-23µs) by DBIx::Class::ResultSourceProxy::Table::BEGIN@8 at line 9 of DBIx/Class/ResultSource/Table.pm
sub load_components {
7032µs my $class = shift;
711142µs2211µs $class->_load_components( map {
# spent 8µs making 11 calls to DBIx::Class::component_base_class, avg 764ns/call # spent 3µs making 11 calls to Class::C3::Componentised::CORE:match, avg 245ns/call
721124µs114µs /^\+(.*)$/
# spent 4µs making 11 calls to Class::C3::Componentised::CORE:match, avg 400ns/call
73 ? $1
74 : join ('::', $class->component_base_class, $_)
75336µs371.0ms } grep { $_ !~ /^#/ } @_
# spent 96.8ms making 3 calls to Class::C3::Componentised::_load_components, avg 32.3ms/call, recursion: max depth 2, sum of overlapping time 25.8ms
76 );
77}
78
79=head2 load_own_components( @comps )
80
81Similar to L<load_components>, but assumes every class is C<"$class::$comp">.
82
83=cut
84
85
# spent 13.9ms (22µs+13.8) within Class::C3::Componentised::load_own_components which was called: # once (22µs+13.8ms) by Class::C3::Componentised::ensure_class_loaded at line 8 of DBIx/Class/Relationship.pm
sub load_own_components {
861800ns my $class = shift;
87624µs61µs $class->_load_components( map { "${class}::$_" } grep { $_ !~ /^#/ } @_ );
# spent 1µs making 5 calls to Class::C3::Componentised::CORE:match, avg 280ns/call # spent 13.8ms making 1 call to Class::C3::Componentised::_load_components, recursion: max depth 1, sum of overlapping time 13.8ms
88}
89
90
# spent 71.0ms (150µs+70.8) within Class::C3::Componentised::_load_components which was called 4 times, avg 17.7ms/call: # 3 times (105µs+70.9ms) by Class::C3::Componentised::load_components at line 75, avg 23.7ms/call # once (45µs+-45µs) by Class::C3::Componentised::load_own_components at line 87
sub _load_components {
9141µs my $class = shift;
9241µs return unless @_;
93
94468µs160s $class->ensure_class_loaded($_) for @_;
# spent 109ms making 16 calls to Class::C3::Componentised::ensure_class_loaded, avg 6.82ms/call, recursion: max depth 3, sum of overlapping time 109ms
95431µs41.28ms $class->inject_base($class => @_);
# spent 1.28ms making 4 calls to DBIx::Class::Componentised::inject_base, avg 319µs/call
96419µs48µs Class::C3::reinitialize();
# spent 8µs making 4 calls to MRO::Compat::__ANON__[MRO/Compat.pm:41], avg 2µs/call
97}
98
99=head2 load_optional_components
100
101As L<load_components>, but will silently ignore any components that cannot be
102found.
103
104=cut
105
106sub load_optional_components {
107 my $class = shift;
108 $class->_load_components( grep
109 { $class->load_optional_class( $_ ) }
110 ( map
111 { /^\+(.*)$/
112 ? $1
113 : join ('::', $class->component_base_class, $_)
114 }
115 grep { $_ !~ /^#/ } @_
116 )
117 );
118}
119
120=head2 ensure_class_loaded
121
122Given a class name, tests to see if it is already loaded or otherwise
123defined. If it is not yet loaded, the package is require'd, and an exception
124is thrown if the class is still not loaded.
125
126 BUG: For some reason, packages with syntax errors are added to %INC on
127 require
128=cut
129
130
# spent 1.34s (254ms+1.09) within Class::C3::Componentised::ensure_class_loaded which was called 724 times, avg 1.86ms/call: # 179 times (1.22ms+0s) by DBIx::Class::ResultSet::result_class at line 1558 of DBIx/Class/ResultSet.pm, avg 7µs/call # 177 times (2.54ms+8.33ms) by DBIx::Class::AccessorGroup::get_component_class at line 19 of DBIx/Class/AccessorGroup.pm, avg 61µs/call # 174 times (218ms+1.05s) by DBIx::Class::Schema::load_namespaces at line 239 of DBIx/Class/Schema.pm, avg 7.28ms/call # 174 times (1.03ms+-1.03ms) by DBIx::Class::ResultSourceProxy::Table::table at line 87 of DBIx/Class/ResultSourceProxy/Table.pm, avg 0s/call # 16 times (15.6ms+-15.6ms) by Class::C3::Componentised::_load_components at line 94, avg 0s/call # 2 times (1.15ms+-1.15ms) by DBIx::Class::Relationship::BelongsTo::belongs_to at line 43 of DBIx/Class/Relationship/BelongsTo.pm, avg 0s/call # once (13.0ms+50.2ms) by Try::Tiny::try at line 807 of DBIx/Class/Schema.pm # once (1.37ms+337µs) by Class::C3::Componentised::load_optional_class at line 227
sub ensure_class_loaded {
131724384µs my ($class, $f_class) = @_;
132
1332298µs233µs
# spent 23µs (12+10) within Class::C3::Componentised::BEGIN@133 which was called: # once (12µs+10µs) by base::import at line 133
no strict 'refs';
# spent 23µs making 1 call to Class::C3::Componentised::BEGIN@133 # spent 10µs making 1 call to strict::unimport
134
135 # ripped from Class::Inspector for speed
136 # note that the order is important (faster items are first)
1377242.46ms return if ${"${f_class}::VERSION"};
138
1397242.75ms return if @{"${f_class}::ISA"};
140
141193844µs my $file = (join ('/', split ('::', $f_class) ) ) . '.pm';
142193271µs return if $INC{$file};
143
144193477µs for ( keys %{"${f_class}::"} ) {
145389614µs return if ( *{"${f_class}::$_"}{CODE} );
146 }
147
148 # require always returns true on success
149 # ill-behaved modules might very well obliterate $_
150579142ms eval { local $_; require($file) } or do {
151
152 $@ = "Invalid class name '$f_class'" if $f_class =~ $invalid_class;
153
154 if ($class->can('throw_exception')) {
155 $class->throw_exception($@);
156 } else {
157 Carp::croak $@;
158 }
159 };
160
161193738µs return;
162}
163
164=head2 ensure_class_found
165
166Returns true if the specified class is installed or already loaded, false
167otherwise.
168
169Note that the underlying mechanism (Class::Inspector->installed()) used by this
170sub will not, at the time of writing, correctly function when @INC includes
171coderefs. Since PAR relies upon coderefs in @INC, this function should be
172avoided in modules that are likely to be included within a PAR.
173
174=cut
175
176sub ensure_class_found {
177 #my ($class, $f_class) = @_;
178 require Class::Inspector;
179 return Class::Inspector->loaded($_[1]) ||
180 Class::Inspector->installed($_[1]);
181}
182
183
184=head2 inject_base
185
186Does the actual magic of adjusting @ISA on the target module.
187
188=cut
189
190sub inject_base {
19142µs my $class = shift;
1924800ns my $target = shift;
193
194423µs410µs mro::set_mro($target, 'c3');
# spent 10µs making 4 calls to mro::set_mro, avg 3µs/call
195
19645µs for my $comp (reverse @_) {
197166µs my $apply = do {
1982288µs222µs
# spent 17µs (11+6) within Class::C3::Componentised::BEGIN@198 which was called: # once (11µs+6µs) by base::import at line 198
no strict 'refs';
# spent 17µs making 1 call to Class::C3::Componentised::BEGIN@198 # spent 6µs making 1 call to strict::unimport
19932453µs
# spent 405µs within Class::C3::Componentised::__ANON__[/usr/share/perl5/Class/C3/Componentised.pm:199] which was called 16 times, avg 25µs/call: # 16 times (405µs+0s) by DBIx::Class::Componentised::inject_base at line 208, avg 25µs/call
sub { unshift ( @{"${target}::ISA"}, $comp ) };
200 };
20116202µs1635µs unless ($target eq $comp || $target->isa($comp)) {
# spent 35µs making 16 calls to UNIVERSAL::isa, avg 2µs/call
202163µs our %APPLICATOR_FOR;
20316100µs3260µs if (my $apply_class
# spent 38µs making 16 calls to List::Util::first, avg 2µs/call # spent 22µs making 16 calls to mro::get_linear_isa, avg 1µs/call
2048344µs = List::Util::first { $APPLICATOR_FOR{$_} } @{mro::get_linear_isa($comp)}
205 ) {
206 $APPLICATOR_FOR{$apply_class}->_apply_component_to_class($comp,$target,$apply);
207 } else {
2081615µs16405µs $apply->();
# spent 405µs making 16 calls to Class::C3::Componentised::__ANON__[Class/C3/Componentised.pm:199], avg 25µs/call
209 }
210 }
211 }
212}
213
214=head2 load_optional_class
215
216Returns a true value if the specified class is installed and loaded
217successfully, throws an exception if the class is found but not loaded
218successfully, and false if the class is not installed
219
220=cut
221
222
# spent 1.72ms (13µs+1.71) within Class::C3::Componentised::load_optional_class which was called: # once (13µs+1.71ms) by DBIx::Class::Storage::DBI::_determine_driver at line 1264 of DBIx/Class/Storage/DBI.pm
sub load_optional_class {
2231800ns my ($class, $f_class) = @_;
224
225 # ensure_class_loaded either returns a () (*not* true) or throws
22615µs eval {
22716µs11.71ms $class->ensure_class_loaded($f_class);
# spent 1.71ms making 1 call to Class::C3::Componentised::ensure_class_loaded
2281800ns 1;
229 } && return 1;
230
231 my $err = $@; # so we don't lose it
232
233 if ($f_class =~ $invalid_class) {
234 $err = "Invalid class name '$f_class'";
235 }
236 else {
237 my $fn = quotemeta( (join ('/', split ('::', $f_class) ) ) . '.pm' );
238 return 0 if ($err =~ /Can't locate ${fn} in \@INC/ );
239 }
240
241 if ($class->can('throw_exception')) {
242 $class->throw_exception($err);
243 }
244 else {
245 die $err;
246 }
247}
248
249=head1 AUTHORS
250
251Matt S. Trout and the L<DBIx::Class team|DBIx::Class/CONTRIBUTORS>
252
253Pulled out into separate module by Ash Berlin C<< <ash@cpan.org> >>
254
255Optimizations and overall bolt-tightening by Peter "ribasushi" Rabbitson
256C<< <ribasushi@cpan.org> >>
257
258=head1 COPYRIGHT
259
260Copyright (c) 2006 - 2011 the Class::C3::Componentised L</AUTHORS> as listed
261above.
262
263=head1 LICENSE
264
265You may distribute this code under the same terms as Perl itself.
266
267=cut
268
26915µs1;
Report produced by the NYTProf 6.02 Perl profiler, developed by Tim Bunce and Adam Kaplan.