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For examples/Atom-timer.pl
  Run on Mon Aug 12 14:45:28 2013
Reported on Mon Aug 12 14:46:15 2013

Filename/Users/dde/perl5/perlbrew/perls/5.18.0t/lib/site_perl/5.18.0/MooseX/Storage/Engine.pm
StatementsExecuted 17 statements in 1.56ms
Subroutines
Calls P F Exclusive
Time
Inclusive
Time
Subroutine
1118µs8µsMooseX::Storage::Engine::::BEGIN@5MooseX::Storage::Engine::BEGIN@5
1118µs6.17msMooseX::Storage::Engine::::BEGIN@8MooseX::Storage::Engine::BEGIN@8
1117µs63µsMooseX::Storage::Engine::::BEGIN@365MooseX::Storage::Engine::BEGIN@365
1117µs26µsMooseX::Storage::Engine::::BEGIN@9MooseX::Storage::Engine::BEGIN@9
0000s0sMooseX::Storage::Engine::::__ANON__[:18]MooseX::Storage::Engine::__ANON__[:18]
0000s0sMooseX::Storage::Engine::::__ANON__[:202]MooseX::Storage::Engine::__ANON__[:202]
0000s0sMooseX::Storage::Engine::::__ANON__[:210]MooseX::Storage::Engine::__ANON__[:210]
0000s0sMooseX::Storage::Engine::::__ANON__[:219]MooseX::Storage::Engine::__ANON__[:219]
0000s0sMooseX::Storage::Engine::::__ANON__[:220]MooseX::Storage::Engine::__ANON__[:220]
0000s0sMooseX::Storage::Engine::::__ANON__[:222]MooseX::Storage::Engine::__ANON__[:222]
0000s0sMooseX::Storage::Engine::::__ANON__[:223]MooseX::Storage::Engine::__ANON__[:223]
0000s0sMooseX::Storage::Engine::::__ANON__[:244]MooseX::Storage::Engine::__ANON__[:244]
0000s0sMooseX::Storage::Engine::::__ANON__[:24]MooseX::Storage::Engine::__ANON__[:24]
0000s0sMooseX::Storage::Engine::::__ANON__[:256]MooseX::Storage::Engine::__ANON__[:256]
0000s0sMooseX::Storage::Engine::::__ANON__[:267]MooseX::Storage::Engine::__ANON__[:267]
0000s0sMooseX::Storage::Engine::::__ANON__[:279]MooseX::Storage::Engine::__ANON__[:279]
0000s0sMooseX::Storage::Engine::::add_custom_type_handlerMooseX::Storage::Engine::add_custom_type_handler
0000s0sMooseX::Storage::Engine::::check_for_cycle_in_collapseMooseX::Storage::Engine::check_for_cycle_in_collapse
0000s0sMooseX::Storage::Engine::::check_for_cycle_in_expansionMooseX::Storage::Engine::check_for_cycle_in_expansion
0000s0sMooseX::Storage::Engine::::collapse_attributeMooseX::Storage::Engine::collapse_attribute
0000s0sMooseX::Storage::Engine::::collapse_attribute_valueMooseX::Storage::Engine::collapse_attribute_value
0000s0sMooseX::Storage::Engine::::collapse_objectMooseX::Storage::Engine::collapse_object
0000s0sMooseX::Storage::Engine::::expand_attributeMooseX::Storage::Engine::expand_attribute
0000s0sMooseX::Storage::Engine::::expand_attribute_valueMooseX::Storage::Engine::expand_attribute_value
0000s0sMooseX::Storage::Engine::::expand_objectMooseX::Storage::Engine::expand_object
0000s0sMooseX::Storage::Engine::::find_type_handlerMooseX::Storage::Engine::find_type_handler
0000s0sMooseX::Storage::Engine::::find_type_handler_forMooseX::Storage::Engine::find_type_handler_for
0000s0sMooseX::Storage::Engine::::map_attributesMooseX::Storage::Engine::map_attributes
0000s0sMooseX::Storage::Engine::::remove_custom_type_handlerMooseX::Storage::Engine::remove_custom_type_handler
Call graph for these subroutines as a Graphviz dot language file.
Line State
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Time
on line
Calls Time
in subs
Code
1package MooseX::Storage::Engine;
2{
32700ns $MooseX::Storage::Engine::VERSION = '0.39';
4}
5
# spent 8µs within MooseX::Storage::Engine::BEGIN@5 which was called: # once (8µs+0s) by MooseX::Storage::Basic::BEGIN@10 at line 7
BEGIN {
614µs $MooseX::Storage::Engine::AUTHORITY = 'cpan:STEVAN';
7117µs18µs}
# spent 8µs making 1 call to MooseX::Storage::Engine::BEGIN@5
8232µs212.3ms
# spent 6.17ms (8µs+6.17) within MooseX::Storage::Engine::BEGIN@8 which was called: # once (8µs+6.17ms) by MooseX::Storage::Basic::BEGIN@10 at line 8
use Moose;
# spent 6.17ms making 1 call to MooseX::Storage::Engine::BEGIN@8 # spent 6.17ms making 1 call to Moose::Exporter::__ANON__[Moose/Exporter.pm:519]
921.43ms246µs
# spent 26µs (7+20) within MooseX::Storage::Engine::BEGIN@9 which was called: # once (7µs+20µs) by MooseX::Storage::Basic::BEGIN@10 at line 9
use Scalar::Util qw(refaddr);
# spent 26µs making 1 call to MooseX::Storage::Engine::BEGIN@9 # spent 20µs making 1 call to Exporter::import
10
11# the class marker when
12# serializing an object.
131200nsour $CLASS_MARKER = '__CLASS__';
14
15has 'storage' => (
16 is => 'ro',
17 isa => 'HashRef',
18 default => sub {{}}
1913µs11.92ms);
# spent 1.92ms making 1 call to Moose::has
20
21has 'seen' => (
22 is => 'ro',
23 isa => 'HashRef[Int]', # int is the refaddr
24 default => sub {{}}
2512µs12.68ms);
# spent 2.68ms making 1 call to Moose::has
26
2711µs16.38mshas 'object' => (is => 'rw', isa => 'Object', predicate => '_has_object');
# spent 6.38ms making 1 call to Moose::has
2811µs11.42mshas 'class' => (is => 'rw', isa => 'Str');
# spent 1.42ms making 1 call to Moose::has
29
30## this is the API used by other modules ...
31
32sub collapse_object {
33 my ( $self, %options ) = @_;
34
35 # NOTE:
36 # mark the root object as seen ...
37 $self->seen->{refaddr $self->object} = undef;
38
39 $self->map_attributes('collapse_attribute', \%options);
40 $self->storage->{$CLASS_MARKER} = $self->object->meta->identifier;
41 return $self->storage;
42}
43
44sub expand_object {
45 my ($self, $data, %options) = @_;
46
47 $options{check_version} = 1 unless exists $options{check_version};
48 $options{check_authority} = 1 unless exists $options{check_authority};
49
50 # NOTE:
51 # mark the root object as seen ...
52 $self->seen->{refaddr $data} = undef;
53
54 $self->map_attributes('expand_attribute', $data, \%options);
55 return $self->storage;
56}
57
58## this is the internal API ...
59
60sub collapse_attribute {
61 my ($self, $attr, $options) = @_;
62 my $value = $self->collapse_attribute_value($attr, $options);
63 return if !defined($value);
64 $self->storage->{$attr->name} = $value;
65}
66
67sub expand_attribute {
68 my ($self, $attr, $data, $options) = @_;
69 my $value = $self->expand_attribute_value($attr, $data->{$attr->name}, $options);
70 $self->storage->{$attr->name} = defined $value ? $value : return;
71}
72
73sub collapse_attribute_value {
74 my ($self, $attr, $options) = @_;
75 # Faster, but breaks attributes without readers, do we care?
76 #my $value = $attr->get_read_method_ref->($self->object);
77 my $value = $attr->get_value($self->object);
78
79 # NOTE:
80 # this might not be enough, we might
81 # need to make it possible for the
82 # cycle checker to return the value
83 $self->check_for_cycle_in_collapse($attr, $value)
84 if ref $value;
85
86 if (defined $value && $attr->has_type_constraint) {
87 my $type_converter = $self->find_type_handler($attr->type_constraint, $value);
88 (defined $type_converter)
89 || confess "Cannot convert " . $attr->type_constraint->name;
90 $value = $type_converter->{collapse}->($value, $options);
91 }
92 return $value;
93}
94
95sub expand_attribute_value {
96 my ($self, $attr, $value, $options) = @_;
97
98 # NOTE:
99 # (see comment in method above ^^)
100 if( ref $value and not(
101 $options->{disable_cycle_check} or
102 $self->class->does('MooseX::Storage::Traits::DisableCycleDetection')
103 )) {
104 $self->check_for_cycle_in_collapse($attr, $value)
105 }
106
107 if (defined $value && $attr->has_type_constraint) {
108 my $type_converter = $self->find_type_handler($attr->type_constraint, $value);
109 $value = $type_converter->{expand}->($value, $options);
110 }
111 return $value;
112}
113
114# NOTE:
115# possibly these two methods will
116# be used by a cycle supporting
117# engine. However, I am not sure
118# if I can make a cycle one work
119# anyway.
120
121sub check_for_cycle_in_collapse {
122 my ($self, $attr, $value) = @_;
123 (!exists $self->seen->{refaddr $value})
124 || confess "Basic Engine does not support cycles in class("
125 . ($attr->associated_class->name) . ").attr("
126 . ($attr->name) . ") with $value";
127 $self->seen->{refaddr $value} = undef;
128}
129
130sub check_for_cycle_in_expansion {
131 my ($self, $attr, $value) = @_;
132 (!exists $self->seen->{refaddr $value})
133 || confess "Basic Engine does not support cycles in class("
134 . ($attr->associated_class->name) . ").attr("
135 . ($attr->name) . ") with $value";
136 $self->seen->{refaddr $value} = undef;
137}
138
139# util methods ...
140
141sub map_attributes {
142 my ($self, $method_name, @args) = @_;
143 map {
144 $self->$method_name($_, @args)
145 } grep {
146 # Skip our special skip attribute :)
147 !$_->does('MooseX::Storage::Meta::Attribute::Trait::DoNotSerialize')
148 } ($self->_has_object ? $self->object : $self->class)->meta->get_all_attributes;
149}
150
151## ------------------------------------------------------------------
152## This is all the type handler stuff, it is in a state of flux
153## right now, so this may change, or it may just continue to be
154## improved upon. Comments and suggestions are welcomed.
155## ------------------------------------------------------------------
156
157# NOTE:
158# these are needed by the
159# ArrayRef and HashRef handlers
160# below, so I need easy access
161my %OBJECT_HANDLERS = (
162 expand => sub {
163 my ($data, $options) = @_;
164 (exists $data->{$CLASS_MARKER})
165 || confess "Serialized item has no class marker";
166 # check the class more thoroughly here ...
167 my ($class, $version, $authority) = (split '-' => $data->{$CLASS_MARKER});
168 my $meta = eval { $class->meta };
169 confess "Class ($class) is not loaded, cannot unpack" if $@;
170
171 if ($options->{check_version}) {
172 my $meta_version = $meta->version;
173 if (defined $meta_version && $version) {
174 if ($options->{check_version} eq 'allow_less_than') {
175 ($meta_version <= $version)
176 || confess "Class ($class) versions is not less than currently available."
177 . " got=($version) available=($meta_version)";
178 }
179 elsif ($options->{check_version} eq 'allow_greater_than') {
180 ($meta->version >= $version)
181 || confess "Class ($class) versions is not greater than currently available."
182 . " got=($version) available=($meta_version)";
183 }
184 else {
185 ($meta->version == $version)
186 || confess "Class ($class) versions don't match."
187 . " got=($version) available=($meta_version)";
188 }
189 }
190 }
191
192 if ($options->{check_authority}) {
193 my $meta_authority = $meta->authority;
194 ($meta->authority eq $authority)
195 || confess "Class ($class) authorities don't match."
196 . " got=($authority) available=($meta_authority)"
197 if defined $meta_authority && defined $authority;
198 }
199
200 # all is well ...
201 $class->unpack($data, %$options);
202 },
203 collapse => sub {
204 my ( $obj, $options ) = @_;
205# ($obj->can('does') && $obj->does('MooseX::Storage::Basic'))
206# || confess "Bad object ($obj) does not do MooseX::Storage::Basic role";
207 ($obj->can('pack'))
208 || confess "Object ($obj) does not have a &pack method, cannot collapse";
209 $obj->pack(%$options);
210 },
21115µs);
212
213
214my %TYPES = (
215 # NOTE:
216 # we need to make sure that we properly numify the numbers
217 # before and after them being futzed with, because some of
218 # the JSON engines are stupid/annoying/frustrating
219 'Int' => { expand => sub { $_[0] + 0 }, collapse => sub { $_[0] + 0 } },
220 'Num' => { expand => sub { $_[0] + 0 }, collapse => sub { $_[0] + 0 } },
221 # These are boring ones, so they use the identity function ...
222 'Str' => { expand => sub { shift }, collapse => sub { shift } },
223 'Bool' => { expand => sub { shift }, collapse => sub { shift } },
224 # These are the trickier ones, (see notes)
225 # NOTE:
226 # Because we are nice guys, we will check
227 # your ArrayRef and/or HashRef one level
228 # down and inflate any objects we find.
229 # But this is where it ends, it is too
230 # expensive to try and do this any more
231 # recursively, when it is probably not
232 # nessecary in most of the use cases.
233 # However, if you need more then this, subtype
234 # and add a custom handler.
235 'ArrayRef' => {
236 expand => sub {
237 my ( $array, @args ) = @_;
238 foreach my $i (0 .. $#{$array}) {
239 next unless ref($array->[$i]) eq 'HASH'
240 && exists $array->[$i]->{$CLASS_MARKER};
241 $array->[$i] = $OBJECT_HANDLERS{expand}->($array->[$i], @args);
242 }
243 $array;
244 },
245 collapse => sub {
246 my ( $array, @args ) = @_;
247 # NOTE:
248 # we need to make a copy cause
249 # otherwise it will affect the
250 # other real version.
251 [ map {
252 blessed($_)
253 ? $OBJECT_HANDLERS{collapse}->($_, @args)
254 : $_
255 } @$array ]
256 }
257 },
258 'HashRef' => {
259 expand => sub {
260 my ( $hash, @args ) = @_;
261 foreach my $k (keys %$hash) {
262 next unless ref($hash->{$k}) eq 'HASH'
263 && exists $hash->{$k}->{$CLASS_MARKER};
264 $hash->{$k} = $OBJECT_HANDLERS{expand}->($hash->{$k}, @args);
265 }
266 $hash;
267 },
268 collapse => sub {
269 my ( $hash, @args ) = @_;
270 # NOTE:
271 # we need to make a copy cause
272 # otherwise it will affect the
273 # other real version.
274 +{ map {
275 blessed($hash->{$_})
276 ? ($_ => $OBJECT_HANDLERS{collapse}->($hash->{$_}, @args))
277 : ($_ => $hash->{$_})
278 } keys %$hash }
279 }
280 },
281117µs 'Object' => \%OBJECT_HANDLERS,
282 # NOTE:
283 # The sanity of enabling this feature by
284 # default is very questionable.
285 # - SL
286 #'CodeRef' => {
287 # expand => sub {}, # use eval ...
288 # collapse => sub {}, # use B::Deparse ...
289 #}
290);
291
292sub add_custom_type_handler {
293 my ($self, $type_name, %handlers) = @_;
294 (exists $handlers{expand} && exists $handlers{collapse})
295 || confess "Custom type handlers need an expand *and* a collapse method";
296 $TYPES{$type_name} = \%handlers;
297}
298
299sub remove_custom_type_handler {
300 my ($self, $type_name) = @_;
301 delete $TYPES{$type_name} if exists $TYPES{$type_name};
302}
303
304sub find_type_handler {
305 my ($self, $type_constraint, $value) = @_;
306
307 # check if the type is a Maybe and
308 # if its parent is not parameterized.
309 # If both is true recurse this method
310 # using ->type_parameter.
311 return $self->find_type_handler($type_constraint->type_parameter, $value)
312 if ($type_constraint->parent && $type_constraint->parent eq 'Maybe'
313 and not $type_constraint->parent->can('type_parameter'));
314
315 # find_type_for is a method of a union type. If we can call that method
316 # then we are dealign with a union and we need to ascertain which of
317 # the union's types we need to use for the value we are serializing.
318 if($type_constraint->can('find_type_for')) {
319 my $tc = $type_constraint->find_type_for($value);
320 return $self->find_type_handler($tc, $value) if defined($tc);
321 }
322
323 # this should handle most type usages
324 # since they they are usually just
325 # the standard set of built-ins
326 return $TYPES{$type_constraint->name}
327 if exists $TYPES{$type_constraint->name};
328
329 # the next possibility is they are
330 # a subtype of the built-in types,
331 # in which case this will DWIM in
332 # most cases. It is probably not
333 # 100% ideal though, but until I
334 # come up with a decent test case
335 # it will do for now.
336 foreach my $type (keys %TYPES) {
337 return $TYPES{$type}
338 if $type_constraint->is_subtype_of($type);
339 }
340
341 # NOTE:
342 # the reason the above will work has to
343 # do with the fact that custom subtypes
344 # are mostly used for validation of
345 # the guts of a type, and not for some
346 # weird structural thing which would
347 # need to be accomidated by the serializer.
348 # Of course, mst or phaylon will probably
349 # do something to throw this assumption
350 # totally out the door ;)
351 # - SL
352
353 # NOTE:
354 # if this method hasnt returned by now
355 # then we have no been able to find a
356 # type constraint handler to match
357 confess "Cannot handle type constraint (" . $type_constraint->name . ")";
358}
359
360sub find_type_handler_for {
361 my ($self, $type_handler_name) = @_;
362 $TYPES{$type_handler_name}
363}
364
365238µs2118µs
# spent 63µs (7+55) within MooseX::Storage::Engine::BEGIN@365 which was called: # once (7µs+55µs) by MooseX::Storage::Basic::BEGIN@10 at line 365
no Moose::Role;
# spent 63µs making 1 call to MooseX::Storage::Engine::BEGIN@365 # spent 55µs making 1 call to Moose::Exporter::__ANON__[Moose/Exporter.pm:706]
366
367111µs1;
368
369__END__