← Index
NYTProf Performance Profile   « line view »
For /Users/timbo/perl5/perlbrew/perls/perl-5.18.2/bin/perlcritic
  Run on Sat Mar 19 22:12:22 2016
Reported on Sat Mar 19 22:14:11 2016

Filename/Users/timbo/perl5/perlbrew/perls/perl-5.18.2/lib/site_perl/5.18.2/Perl/Critic/Policy/ValuesAndExpressions/ProhibitComplexVersion.pm
StatementsExecuted 29 statements in 853µs
Subroutines
Calls P F Exclusive
Time		 Inclusive
Time		 Subroutine
11116µs19µsPerl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::::supported_parametersPerl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::supported_parameters
11116µs16µsPerl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::::BEGIN@10Perl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::BEGIN@10
1119µs28µsPerl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::::BEGIN@23Perl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::BEGIN@23
1118µs26µsPerl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::::BEGIN@22Perl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::BEGIN@22
1118µs380µsPerl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::::BEGIN@16Perl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::BEGIN@16
1118µs40µsPerl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::::BEGIN@14Perl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::BEGIN@14
1117µs388µsPerl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::::BEGIN@15Perl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::BEGIN@15
1117µs37µsPerl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::::BEGIN@17Perl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::BEGIN@17
1117µs18µsPerl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::::BEGIN@11Perl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::BEGIN@11
1117µs11µsPerl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::::BEGIN@12Perl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::BEGIN@12
1117µs56µsPerl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::::BEGIN@25Perl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::BEGIN@25
1116µs7µsPerl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::::default_severityPerl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::default_severity
0000s0sPerl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::::__ANON__[:158]Perl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::__ANON__[:158]
0000s0sPerl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::::_get_simple_statementPerl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::_get_simple_statement
0000s0sPerl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::::_validate_fully_qualified_symbolsPerl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::_validate_fully_qualified_symbols
0000s0sPerl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::::applies_toPerl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::applies_to
0000s0sPerl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::::default_themesPerl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::default_themes
0000s0sPerl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::::violatesPerl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::violates
Call graph for these subroutines as a Graphviz dot language file.
Line State
ments		 Time
on line		 Calls Time
in subs		 Code
1##############################################################################
2# $URL$
3# $Date$
4# $Author$
5# $Revision$
6##############################################################################
7
8package Perl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion;
9
10244µs116µs
# spent 16µs within Perl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::BEGIN@10 which was called: # once (16µs+0s) by Module::Pluggable::Object::_require at line 10
use 5.006001;
# spent 16µs making 1 call to Perl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::BEGIN@10
11225µs230µs
# spent 18µs (7+11) within Perl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::BEGIN@11 which was called: # once (7µs+11µs) by Module::Pluggable::Object::_require at line 11
use strict;
# spent 18µs making 1 call to Perl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::BEGIN@11 # spent 11µs making 1 call to strict::import
12218µs215µs
# spent 11µs (7+4) within Perl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::BEGIN@12 which was called: # once (7µs+4µs) by Module::Pluggable::Object::_require at line 12
use warnings;
# spent 11µs making 1 call to Perl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::BEGIN@12 # spent 4µs making 1 call to warnings::import
13
14222µs273µs
# spent 40µs (8+33) within Perl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::BEGIN@14 which was called: # once (8µs+33µs) by Module::Pluggable::Object::_require at line 14
use Carp;
# spent 40µs making 1 call to Perl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::BEGIN@14 # spent 33µs making 1 call to Exporter::import
15236µs2769µs
# spent 388µs (7+381) within Perl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::BEGIN@15 which was called: # once (7µs+381µs) by Module::Pluggable::Object::_require at line 15
use English qw(-no_match_vars);
# spent 388µs making 1 call to Perl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::BEGIN@15 # spent 381µs making 1 call to English::import
16227µs2752µs
# spent 380µs (8+372) within Perl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::BEGIN@16 which was called: # once (8µs+372µs) by Module::Pluggable::Object::_require at line 16
use Perl::Critic::Utils qw{ :booleans :characters :severities };
# spent 380µs making 1 call to Perl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::BEGIN@16 # spent 372µs making 1 call to Exporter::import
171400ns
# spent 37µs (7+29) within Perl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::BEGIN@17 which was called: # once (7µs+29µs) by Module::Pluggable::Object::_require at line 21
use Perl::Critic::Utils::PPI qw{
18 get_next_element_in_same_simple_statement
19 get_previous_module_used_on_same_line
20 is_ppi_simple_statement
21137µs266µs};
# spent 37µs making 1 call to Perl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::BEGIN@17 # spent 29µs making 1 call to Exporter::import
22221µs245µs
# spent 26µs (8+18) within Perl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::BEGIN@22 which was called: # once (8µs+18µs) by Module::Pluggable::Object::_require at line 22
use Readonly;
# spent 26µs making 1 call to Perl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::BEGIN@22 # spent 18µs making 1 call to Exporter::import
23223µs247µs
# spent 28µs (9+19) within Perl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::BEGIN@23 which was called: # once (9µs+19µs) by Module::Pluggable::Object::_require at line 23
use Scalar::Util qw{ blessed };
# spent 28µs making 1 call to Perl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::BEGIN@23 # spent 19µs making 1 call to Exporter::import
24
252570µs2104µs
# spent 56µs (7+49) within Perl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::BEGIN@25 which was called: # once (7µs+49µs) by Module::Pluggable::Object::_require at line 25
use base 'Perl::Critic::Policy';
# spent 56µs making 1 call to Perl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::BEGIN@25 # spent 49µs making 1 call to base::import
26
271600nsour $VERSION = '1.121';
28
29#-----------------------------------------------------------------------------
30
3112µs130µsReadonly::Scalar my $DOLLAR => q<$>;
# spent 30µs making 1 call to Readonly::Scalar
32# All uses of the $DOLLAR variable below are to prevent false failures in
33# xt/author/93_version.t.
341900ns121µsReadonly::Scalar my $VERSION_MODULE => q<version>;
# spent 21µs making 1 call to Readonly::Scalar
3513µs222µsReadonly::Scalar my $VERSION_VARIABLE => $DOLLAR . q<VERSION>;
# spent 20µs making 1 call to Readonly::Scalar # spent 2µs making 1 call to Readonly::Scalar::FETCH
36
3713µs222µsReadonly::Scalar my $DESC =>
# spent 20µs making 1 call to Readonly::Scalar # spent 1µs making 1 call to Readonly::Scalar::FETCH
38 $DOLLAR . q<VERSION value should not come from outside module>;
3911µs120µsReadonly::Scalar my $EXPL =>
# spent 20µs making 1 call to Readonly::Scalar
40 q<If the version comes from outside the module, you can get everything from unexpected version changes to denial-of-service attacks.>;
41
42#-----------------------------------------------------------------------------
43
44
# spent 19µs (16+3) within Perl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::supported_parameters which was called: # once (16µs+3µs) by Perl::Critic::Policy::new at line 88 of Perl/Critic/Policy.pm
sub supported_parameters { return (
45 {
46112µs33µs name => 'forbid_use_version',
# spent 3µs making 3 calls to Readonly::Scalar::FETCH, avg 1µs/call
47 description =>
48 qq<Make "use version; our ${DOLLAR}VERSION = qv('1.2.3');" a violation of this policy.>,
49 default_string => $FALSE,
50 behavior => 'boolean',
51 },
52 );
53}
5412µs
# spent 7µs (6+1) within Perl::Critic::Policy::ValuesAndExpressions::ProhibitComplexVersion::default_severity which was called: # once (6µs+1µs) by Perl::Critic::Policy::get_severity at line 331 of Perl/Critic/Policy.pm
sub default_severity { return $SEVERITY_MEDIUM }
55sub default_themes { return qw( core maintenance ) }
56sub applies_to { return 'PPI::Token::Symbol' }
57
58#-----------------------------------------------------------------------------
59
60sub violates {
61 my ( $self, $elem, $doc ) = @_;
62
63 # Any variable other than $VERSION is ignored.
64 return if $VERSION_VARIABLE ne $elem->content();
65
66 # We are only interested in assignments to $VERSION, but it might be a
67 # list assignment, so if we do not find an assignment, we move up the
68 # parse tree. If we hit a statement (or no parent at all) we do not
69 # understand the code to be an assignment statement, and we simply return.
70 my $operator;
71 return if
72 not $operator = get_next_element_in_same_simple_statement( $elem )
73 or $EQUAL ne $operator;
74
75 # Find the simple statement we are in. If we can not find it, abandon the
76 # attempt to analyze the code.
77 my $statement = $self->_get_simple_statement( $elem )
78 or return;
79
80 # Check all symbols in the statement for violation.
81 my $exception;
82 return $exception if
83 $exception =
84 $self->_validate_fully_qualified_symbols($elem, $statement, $doc);
85
86 # At this point we have found no data that is explicitly from outside the
87 # file. If the author wants to use a $VERSION from another module, _and_
88 # wants MM->parse_version to understand it, the other module must be used
89 # on the same line. So we assume no violation unless this has been done.
90 my $module = get_previous_module_used_on_same_line( $elem )
91 or return;
92
93 # We make an exception for 'use version' unless configured otherwise; so
94 # let it be written, so let it be done.
95 return if $module eq $VERSION_MODULE and not $self->{_forbid_use_version};
96
97 # We assume nefarious intent if we have any other module used on the same
98 # line as the $VERSION assignment.
99 return $self->violation( $DESC, $EXPL, $elem );
100}
101
102#-----------------------------------------------------------------------------
103
104# Return the simple statement that contains our element. The classification
105# done by is_ppi_simple_statement is not quite good enough in this case -- if
106# our parent is a PPI::Structure::List, we want to keep looking.
107
108sub _get_simple_statement {
109 my ( $self, $elem ) = @_;
110
111 my $statement = $elem;
112
113 while ( $statement) {
114 my $parent;
115 if ( is_ppi_simple_statement( $statement ) ) {
116 return $statement if
117 not $parent = $statement->parent()
118 or not $parent->isa( 'PPI::Structure::List' );
119 $statement = $parent;
120 } else {
121 $statement = $statement->parent();
122 }
123 }
124
125 return;
126}
127
128#-----------------------------------------------------------------------------
129
130sub _validate_fully_qualified_symbols {
131 my ( $self, $elem, $statement, $doc ) = @_;
132
133 # Find the package(s) in this file.
134 my %local_package =
135 map { $_->schild( 1 ) => 1 }
136 @{ $doc->find( 'PPI::Statement::Package' ) || [] };
137 $local_package{main} = 1; # For completeness.
138
139 # Check all symbols in the statement for violation.
140 foreach my $symbol (
141 @{ $statement->find( 'PPI::Token::Symbol' ) || [] }
142 ) {
143 if ( $symbol->canonical() =~ m< \A [@\$%&] ([\w:]*) :: >smx ) {
144 $local_package{ $1 }
145 or return $self->violation( $DESC, $EXPL, $elem );
146 }
147 }
148
149 # Check all interpolatable strings in the statement for violation.
150 # TODO this does not correctly handle "@{[some_expression()]}".
151 foreach my $string (
152 @{
153 $statement->find(
154 sub {
155 return
156 $_[1]->isa('PPI::Token::Quote::Double')
157 || $_[1]->isa('PPI::Token::Quote::Interpolate');
158 }
159 )
160 or []
161 }
162 ) {
163 my $unquoted = $string->string();
164 while (
165 $unquoted =~
166 m<
167 (?: \A | [^\\] )
168 (?: \\{2} )*
169 [@\$]
170 [{]?
171 ([\w:]*)
172 ::
173 >gsmx
174 ) {
175 next if $local_package{ $1 };
176
177 return $self->violation( $DESC, $EXPL, $elem );
178 }
179 }
180
181 # Check all words in the statement for violation.
182 foreach my $symbol ( @{ $statement->find( 'PPI::Token::Word' ) || [] } ) {
183 if ( $symbol->content() =~ m/ \A ([\w:]*) :: /smx ) {
184 return $self->violation( $DESC, $EXPL, $elem )
185 if not $local_package{ $1 };
186 }
187 }
188
189 return;
190}
191
19214µs1;
193
194__END__
Report produced by the NYTProf 6.01 Perl profiler, developed by Tim Bunce and Adam Kaplan.