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For t/test-parsing
  Run on Sun Nov 14 09:49:57 2010
Reported on Sun Nov 14 09:50:06 2010

File /usr/local/lib/perl/5.10.0/Class/MOP/Class/Immutable/Trait.pm
Statements Executed 2035
Total Time 0.0037684 seconds
Subroutines — ordered by exclusive time
Calls P F Exclusive
Time
Inclusive
Time
Subroutine
2811176µs176µsClass::MOP::Class::Immutable::Trait::::_get_mutable_metaclass_nameClass::MOP::Class::Immutable::Trait::_get_mutable_metaclass_name
0000s0sClass::MOP::Class::Immutable::Trait::::BEGINClass::MOP::Class::Immutable::Trait::BEGIN
0000s0sClass::MOP::Class::Immutable::Trait::::__ANON__[:37]Class::MOP::Class::Immutable::Trait::__ANON__[:37]
0000s0sClass::MOP::Class::Immutable::Trait::::_immutable_cannot_callClass::MOP::Class::Immutable::Trait::_immutable_cannot_call
0000s0sClass::MOP::Class::Immutable::Trait::::_immutable_metaclassClass::MOP::Class::Immutable::Trait::_immutable_metaclass
0000s0sClass::MOP::Class::Immutable::Trait::::_method_mapClass::MOP::Class::Immutable::Trait::_method_map
0000s0sClass::MOP::Class::Immutable::Trait::::add_package_symbolClass::MOP::Class::Immutable::Trait::add_package_symbol
0000s0sClass::MOP::Class::Immutable::Trait::::class_precedence_listClass::MOP::Class::Immutable::Trait::class_precedence_list
0000s0sClass::MOP::Class::Immutable::Trait::::get_all_attributesClass::MOP::Class::Immutable::Trait::get_all_attributes
0000s0sClass::MOP::Class::Immutable::Trait::::get_all_method_namesClass::MOP::Class::Immutable::Trait::get_all_method_names
0000s0sClass::MOP::Class::Immutable::Trait::::get_all_methodsClass::MOP::Class::Immutable::Trait::get_all_methods
0000s0sClass::MOP::Class::Immutable::Trait::::get_meta_instanceClass::MOP::Class::Immutable::Trait::get_meta_instance
0000s0sClass::MOP::Class::Immutable::Trait::::is_immutableClass::MOP::Class::Immutable::Trait::is_immutable
0000s0sClass::MOP::Class::Immutable::Trait::::is_mutableClass::MOP::Class::Immutable::Trait::is_mutable
0000s0sClass::MOP::Class::Immutable::Trait::::linearized_isaClass::MOP::Class::Immutable::Trait::linearized_isa
0000s0sClass::MOP::Class::Immutable::Trait::::superclassesClass::MOP::Class::Immutable::Trait::superclasses
LineStmts.Exclusive
Time
Avg.Code
1package Class::MOP::Class::Immutable::Trait;
2
3329µs10µsuse strict;
# spent 8µs making 1 call to strict::import
4334µs11µsuse warnings;
# spent 24µs making 1 call to warnings::import
5
6326µs9µsuse MRO::Compat;
# spent 4µs making 1 call to import
7
8327µs9µsuse Carp 'confess';
# spent 47µs making 1 call to Exporter::import
93262µs87µsuse Scalar::Util 'blessed', 'weaken';
# spent 46µs making 1 call to Exporter::import
10
111900ns900nsour $VERSION = '1.09';
12125µs25µs$VERSION = eval $VERSION;
131600ns600nsour $AUTHORITY = 'cpan:STEVAN';
14
15# the original class of the metaclass instance
162895µs3µs
# spent 176µs within Class::MOP::Class::Immutable::Trait::_get_mutable_metaclass_name which was called 28 times, avg 6µs/call: # 28 times (176µs+0s) by Class::MOP::Class::_real_ref_name at line 122 of /usr/local/lib/perl/5.10.0/Class/MOP/Class.pm, avg 6µs/call
sub _get_mutable_metaclass_name { $_[0]{__immutable}{original_class} }
17
18sub is_mutable { 0 }
192835µs1µssub is_immutable { 1 }
20
21sub _immutable_metaclass { ref $_[1] }
22
23sub superclasses {
24 my $orig = shift;
25 my $self = shift;
26 confess "This method is read-only" if @_;
27 $self->$orig;
28}
29
30sub _immutable_cannot_call {
31 my $name = shift;
32 Carp::confess "The '$name' method cannot be called on an immutable instance";
33}
34
3511µs1µsfor my $name (qw/add_method alias_method remove_method add_attribute remove_attribute remove_package_symbol/) {
363488µs163µs no strict 'refs';
# spent 23µs making 1 call to strict::unimport
37646µs8µs *{__PACKAGE__."::$name"} = sub { _immutable_cannot_call($name) };
38}
39
40sub class_precedence_list {
41 my $orig = shift;
42 my $self = shift;
43 @{ $self->{__immutable}{class_precedence_list}
44 ||= [ $self->$orig ] };
45}
46
47sub linearized_isa {
48231504µs2µs my $orig = shift;
49 my $self = shift;
50 @{ $self->{__immutable}{linearized_isa} ||= [ $self->$orig ] };
# spent 235µs making 17 calls to Class::MOP::Class::linearized_isa, avg 14µs/call
51}
52
53sub get_all_methods {
54 my $orig = shift;
55 my $self = shift;
56 @{ $self->{__immutable}{get_all_methods} ||= [ $self->$orig ] };
57}
58
59sub get_all_method_names {
60 my $orig = shift;
61 my $self = shift;
62 @{ $self->{__immutable}{get_all_method_names} ||= [ $self->$orig ] };
63}
64
65sub get_all_attributes {
66141306µs2µs my $orig = shift;
67 my $self = shift;
68 @{ $self->{__immutable}{get_all_attributes} ||= [ $self->$orig ] };
# spent 1.81ms making 15 calls to Class::MOP::Class::get_all_attributes, avg 120µs/call
69}
70
71sub get_meta_instance {
72801892µs1µs my $orig = shift;
73 my $self = shift;
74 $self->{__immutable}{get_meta_instance} ||= $self->$orig;
# spent 3.21ms making 22 calls to Class::MOP::Class::get_meta_instance, avg 146µs/call
75}
76
77sub _method_map {
78777990µs1µs my $orig = shift;
79 my $self = shift;
80 $self->{__immutable}{_method_map} ||= $self->$orig;
# spent 83µs making 20 calls to Class::MOP::Mixin::HasMethods::_method_map, avg 4µs/call
81}
82
83sub add_package_symbol {
84 my $orig = shift;
85 my $self = shift;
86 confess "Cannot add package symbols to an immutable metaclass"
87 unless ( caller(3) )[3] eq 'Class::MOP::Package::get_package_symbol';
88
89 $self->$orig(@_);
90}
91
9217µs7µs1;
93
94__END__
95
96=pod
97
98=head1 NAME
99
100Class::MOP::Class::Immutable::Trait - Implements immutability for metaclass objects
101
102=head1 DESCRIPTION
103
104This class provides a pseudo-trait that is applied to immutable metaclass
105objects. In reality, it is simply a parent class.
106
107It implements caching and read-only-ness for various metaclass methods.
108
109=head1 AUTHOR
110
111Yuval Kogman E<lt>nothingmuch@cpan.orgE<gt>
112
113=head1 COPYRIGHT AND LICENSE
114
115Copyright 2009 by Infinity Interactive, Inc.
116
117L<http://www.iinteractive.com>
118
119This library is free software; you can redistribute it and/or modify
120it under the same terms as Perl itself.
121
122=cut
123