Profile of Class/MOP/Method/Meta.pm

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NYTProf Performance Profile «line view»
For script/ponapi
Run on Wed Feb 10 15:51:26 2016
Reported on Thu Feb 11 09:43:10 2016

Filename | /usr/local/lib/perl/5.18.2/Class/MOP/Method/Meta.pm
Statements | Executed 1576 statements in 8.63ms

Subroutines
Calls | P | F | Exclusive Time | Inclusive Time | Subroutine
--- | --- | --- | --- | --- | ---
97 | 2 | 2 | 4.76ms | 24.8ms | Class::MOP::Method::Meta::::wrapClass::MOP::Method::Meta::wrap
97 | 1 | 1 | 630µs | 729µs | Class::MOP::Method::Meta::::_generate_meta_methodClass::MOP::Method::Meta::_generate_meta_method
1 | 1 | 1 | 9µs | 18µs | Class::MOP::Method::Meta::::BEGIN@4Class::MOP::Method::Meta::BEGIN@4
1 | 1 | 1 | 9µs | 43µs | Class::MOP::Method::Meta::::BEGIN@10Class::MOP::Method::Meta::BEGIN@10
1 | 1 | 1 | 7µs | 1.89ms | Class::MOP::Method::Meta::::BEGIN@12Class::MOP::Method::Meta::BEGIN@12
1 | 1 | 1 | 7µs | 28µs | Class::MOP::Method::Meta::::BEGIN@7Class::MOP::Method::Meta::BEGIN@7
1 | 1 | 1 | 6µs | 9µs | Class::MOP::Method::Meta::::BEGIN@5Class::MOP::Method::Meta::BEGIN@5
1 | 1 | 1 | 5µs | 26µs | Class::MOP::Method::Meta::::BEGIN@8Class::MOP::Method::Meta::BEGIN@8
0 | 0 | 0 | 0s | 0s | Class::MOP::Method::Meta::::__ANON__[:43]Class::MOP::Method::Meta::__ANON__[:43]
0 | 0 | 0 | 0s | 0s | Class::MOP::Method::Meta::::_is_caller_mop_internalClass::MOP::Method::Meta::_is_caller_mop_internal
0 | 0 | 0 | 0s | 0s | Class::MOP::Method::Meta::::_make_compatible_withClass::MOP::Method::Meta::_make_compatible_with

Call graph for these subroutines as a Graphviz dot language file.

Line | State ments | Time on line | Calls | Time in subs | Code
--- | --- | --- | --- | --- | ---
1 |  |  |  |  | package Class::MOP::Method::Meta;
2 | 1 | 500ns |  |  | our $VERSION = '2.1604';
3 |  |  |  |  |
4 | 2 | 20µs | 2 | 26µs | # spent 18µs (9+8) within Class::MOP::Method::Meta::BEGIN@4 which was called: # once (9µs+8µs) by Class::MOP::Mixin::HasMethods::BEGIN@7 at line 4 use strict; # spent 18µs making 1 call to Class::MOP::Method::Meta::BEGIN@4 # spent 8µs making 1 call to strict::import
5 | 2 | 19µs | 2 | 11µs | # spent 9µs (6+3) within Class::MOP::Method::Meta::BEGIN@5 which was called: # once (6µs+3µs) by Class::MOP::Mixin::HasMethods::BEGIN@7 at line 5 use warnings; # spent 9µs making 1 call to Class::MOP::Method::Meta::BEGIN@5 # spent 3µs making 1 call to warnings::import
6 |  |  |  |  |
7 | 2 | 21µs | 2 | 48µs | # spent 28µs (7+21) within Class::MOP::Method::Meta::BEGIN@7 which was called: # once (7µs+21µs) by Class::MOP::Mixin::HasMethods::BEGIN@7 at line 7 use Carp 'confess'; # spent 28µs making 1 call to Class::MOP::Method::Meta::BEGIN@7 # spent 21µs making 1 call to Exporter::import
8 | 2 | 28µs | 2 | 46µs | # spent 26µs (5+20) within Class::MOP::Method::Meta::BEGIN@8 which was called: # once (5µs+20µs) by Class::MOP::Mixin::HasMethods::BEGIN@7 at line 8 use Scalar::Util 'blessed', 'weaken'; # spent 26µs making 1 call to Class::MOP::Method::Meta::BEGIN@8 # spent 20µs making 1 call to Exporter::import
9 |  |  |  |  |
10 | 2 | 24µs | 2 | 78µs | # spent 43µs (9+34) within Class::MOP::Method::Meta::BEGIN@10 which was called: # once (9µs+34µs) by Class::MOP::Mixin::HasMethods::BEGIN@7 at line 10 use constant DEBUG_NO_META => $ENV{DEBUG_NO_META} ? 1 : 0; # spent 43µs making 1 call to Class::MOP::Method::Meta::BEGIN@10 # spent 34µs making 1 call to constant::import
11 |  |  |  |  |
12 | 2 | 238µs | 2 | 3.77ms | # spent 1.89ms (7µs+1.88) within Class::MOP::Method::Meta::BEGIN@12 which was called: # once (7µs+1.88ms) by Class::MOP::Mixin::HasMethods::BEGIN@7 at line 12 use parent 'Class::MOP::Method'; # spent 1.89ms making 1 call to Class::MOP::Method::Meta::BEGIN@12 # spent 1.88ms making 1 call to parent::import
13 |  |  |  |  |
14 |  |  |  |  | sub _is_caller_mop_internal {
15 |  |  |  |  | my $self = shift;
16 |  |  |  |  | my ($caller) = @_;
17 |  |  |  |  | return $caller =~ /^(?:Class::MOP|metaclass)(?:::|$)/;
18 |  |  |  |  | }
19 |  |  |  |  |
20 |  |  |  |  | # spent 729µs (630+99) within Class::MOP::Method::Meta::_generate_meta_method which was called 97 times, avg 8µs/call: # 97 times (630µs+99µs) by Class::MOP::Method::Meta::wrap at line 57, avg 8µs/call sub _generate_meta_method {
21 | 97 | 39µs |  |  | my $method_self = shift;
22 | 97 | 26µs |  |  | my $metaclass = shift;
23 | 97 | 291µs | 97 | 99µs | weaken($metaclass); # spent 99µs making 97 calls to Scalar::Util::weaken, avg 1µs/call
24 |  |  |  |  |
25 |  |  |  |  | sub {
26 |  |  |  |  | # this will be compiled out if the env var wasn't set
27 |  |  |  |  | if (DEBUG_NO_META) {
28 |  |  |  |  | confess "'meta' method called by MOP internals"
29 |  |  |  |  | # it's okay to call meta methods on metaclasses, since we
30 |  |  |  |  | # explicitly ask for them
31 |  |  |  |  | if !$_[0]->isa('Class::MOP::Object')
32 |  |  |  |  | && !$_[0]->isa('Class::MOP::Mixin')
33 |  |  |  |  | # it's okay if the test itself calls ->meta, we only care about
34 |  |  |  |  | # if the mop internals call ->meta
35 |  |  |  |  | && $method_self->_is_caller_mop_internal(scalar caller);
36 |  |  |  |  | }
37 |  |  |  |  | # we must re-initialize so that it
38 |  |  |  |  | # works as expected in subclasses,
39 |  |  |  |  | # since metaclass instances are
40 |  |  |  |  | # singletons, this is not really a
41 |  |  |  |  | # big deal anyway.
42 | 495 | 2.87ms | 990 | 9.64ms | $metaclass->initialize(blessed($_[0]) || $_[0]) # spent 9.53ms making 495 calls to Class::MOP::Class::initialize, avg 19µs/call, recursion: max depth 1, sum of overlapping time 174µs # spent 280µs making 495 calls to Scalar::Util::blessed, avg 565ns/call
43 | 97 | 3.78ms |  |  | };
44 |  |  |  |  | }
45 |  |  |  |  |
46 |  |  |  |  | # spent 24.8ms (4.76+20.0) within Class::MOP::Method::Meta::wrap which was called 97 times, avg 255µs/call: # 74 times (1.08ms+15.6ms) by Moose::Meta::Method::Meta::wrap at line 20 of Moose/Meta/Method/Meta.pm, avg 226µs/call # 23 times (3.67ms+4.38ms) by Class::MOP::Mixin::HasMethods::_add_meta_method at line 24 of Class/MOP/Mixin/HasMethods.pm, avg 350µs/call sub wrap {
47 | 97 | 127µs |  |  | my ($class, @args) = @_;
48 |  |  |  |  |
49 | 97 | 76µs |  |  | unshift @args, 'body' if @args % 2 == 1;
50 | 97 | 140µs |  |  | my %params = @args;
51 | 97 | 48µs |  |  | $class->_throw_exception( CannotOverrideBodyOfMetaMethods => params => \%params,
52 |  |  |  |  | class => $class
53 |  |  |  |  | )
54 |  |  |  |  | if $params{body};
55 |  |  |  |  |
56 | 97 | 170µs | 97 | 973µs | my $metaclass_class = $params{associated_metaclass}->meta; # spent 525µs making 61 calls to Class::MOP::Object::meta, avg 9µs/call # spent 440µs making 35 calls to Moose::Meta::Role::meta, avg 13µs/call # spent 9µs making 1 call to Class::MOP::Mixin::meta
57 | 97 | 218µs | 97 | 729µs | $params{body} = $class->_generate_meta_method($metaclass_class); # spent 729µs making 97 calls to Class::MOP::Method::Meta::_generate_meta_method, avg 8µs/call
58 | 97 | 497µs | 97 | 18.3ms | return $class->SUPER::wrap(%params); # spent 18.3ms making 97 calls to Class::MOP::Method::wrap, avg 189µs/call
59 |  |  |  |  | }
60 |  |  |  |  |
61 |  |  |  |  | sub _make_compatible_with {
62 |  |  |  |  | my $self = shift;
63 |  |  |  |  | my ($other) = @_;
64 |  |  |  |  |
65 |  |  |  |  | # XXX: this is pretty gross. the issue here is that CMOP::Method::Meta
66 |  |  |  |  | # objects are subclasses of CMOP::Method, but when we get to moose, they'll
67 |  |  |  |  | # need to be compatible with Moose::Meta::Method, which isn't possible. the
68 |  |  |  |  | # right solution here is to make ::Meta into a role that gets applied to
69 |  |  |  |  | # whatever the method_metaclass happens to be and get rid of
70 |  |  |  |  | # _meta_method_metaclass entirely, but that's not going to happen until
71 |  |  |  |  | # we ditch cmop and get roles into the bootstrapping, so. i'm not
72 |  |  |  |  | # maintaining the previous behavior of turning them into instances of the
73 |  |  |  |  | # new method_metaclass because that's equally broken, and at least this way
74 |  |  |  |  | # any issues will at least be detectable and potentially fixable. -doy
75 |  |  |  |  | return $self unless $other->_is_compatible_with($self->_real_ref_name);
76 |  |  |  |  |
77 |  |  |  |  | return $self->SUPER::_make_compatible_with(@_);
78 |  |  |  |  | }
79 |  |  |  |  |
80 | 1 | 2µs |  |  | 1;
81 |  |  |  |  |
82 |  |  |  |  | # ABSTRACT: Method Meta Object for C<meta> methods
83 |  |  |  |  |
84 |  |  |  |  | __END__