Filename | /home/ss5/perl5/perlbrew/perls/tapper-perl/lib/5.16.3/base.pm |
Statements | Executed 334 statements in 1.25ms |
Calls | P | F | Exclusive Time |
Inclusive Time |
Subroutine |
---|---|---|---|---|---|
12 | 12 | 12 | 1.34ms | 3.04ms | import | base::
12 | 1 | 1 | 33µs | 33µs | has_fields | base::
12 | 1 | 1 | 23µs | 23µs | has_attr | base::
7 | 1 | 1 | 20µs | 20µs | CORE:match (opcode) | base::
1 | 1 | 1 | 9µs | 17µs | BEGIN@3 | base::
1 | 1 | 1 | 6µs | 22µs | BEGIN@4 | base::
0 | 0 | 0 | 0s | 0s | __ANON__[:48] | base::
0 | 0 | 0 | 0s | 0s | __ANON__[:55] | base::
0 | 0 | 0 | 0s | 0s | get_attr | base::
0 | 0 | 0 | 0s | 0s | inherit_fields | base::
Line | State ments |
Time on line |
Calls | Time in subs |
Code |
---|---|---|---|---|---|
1 | package base; | ||||
2 | |||||
3 | 2 | 20µs | 2 | 24µs | # spent 17µs (9+8) within base::BEGIN@3 which was called:
# once (9µs+8µs) by Iterator::Util::BEGIN@20 at line 3 # spent 17µs making 1 call to base::BEGIN@3
# spent 8µs making 1 call to strict::import |
4 | 2 | 572µs | 2 | 37µs | # spent 22µs (6+16) within base::BEGIN@4 which was called:
# once (6µs+16µs) by Iterator::Util::BEGIN@20 at line 4 # spent 22µs making 1 call to base::BEGIN@4
# spent 16µs making 1 call to vars::import |
5 | 1 | 400ns | $VERSION = '2.18'; | ||
6 | 1 | 10µs | $VERSION = eval $VERSION; # spent 2µs executing statements in string eval | ||
7 | |||||
8 | # constant.pm is slow | ||||
9 | sub SUCCESS () { 1 } | ||||
10 | |||||
11 | sub PUBLIC () { 2**0 } | ||||
12 | sub PRIVATE () { 2**1 } | ||||
13 | sub INHERITED () { 2**2 } | ||||
14 | sub PROTECTED () { 2**3 } | ||||
15 | |||||
16 | |||||
17 | 1 | 600ns | my $Fattr = \%fields::attr; | ||
18 | |||||
19 | # spent 33µs within base::has_fields which was called 12 times, avg 3µs/call:
# 12 times (33µs+0s) by base::import at line 101, avg 3µs/call | ||||
20 | 12 | 6µs | my($base) = shift; | ||
21 | 12 | 10µs | my $fglob = ${"$base\::"}{FIELDS}; | ||
22 | 12 | 31µs | return( ($fglob && 'GLOB' eq ref($fglob) && *$fglob{HASH}) ? 1 : 0 ); | ||
23 | } | ||||
24 | |||||
25 | # spent 23µs within base::has_attr which was called 12 times, avg 2µs/call:
# 12 times (23µs+0s) by base::import at line 101, avg 2µs/call | ||||
26 | 12 | 4µs | my($proto) = shift; | ||
27 | 12 | 5µs | my($class) = ref $proto || $proto; | ||
28 | 12 | 22µs | return exists $Fattr->{$class}; | ||
29 | } | ||||
30 | |||||
31 | sub get_attr { | ||||
32 | $Fattr->{$_[0]} = [1] unless $Fattr->{$_[0]}; | ||||
33 | return $Fattr->{$_[0]}; | ||||
34 | } | ||||
35 | |||||
36 | 1 | 800ns | if ($] < 5.009) { | ||
37 | *get_fields = sub { | ||||
38 | # Shut up a possible typo warning. | ||||
39 | () = \%{$_[0].'::FIELDS'}; | ||||
40 | my $f = \%{$_[0].'::FIELDS'}; | ||||
41 | |||||
42 | # should be centralized in fields? perhaps | ||||
43 | # fields::mk_FIELDS_be_OK. Peh. As long as %{ $package . '::FIELDS' } | ||||
44 | # is used here anyway, it doesn't matter. | ||||
45 | bless $f, 'pseudohash' if (ref($f) ne 'pseudohash'); | ||||
46 | |||||
47 | return $f; | ||||
48 | } | ||||
49 | } | ||||
50 | else { | ||||
51 | *get_fields = sub { | ||||
52 | # Shut up a possible typo warning. | ||||
53 | () = \%{$_[0].'::FIELDS'}; | ||||
54 | return \%{$_[0].'::FIELDS'}; | ||||
55 | } | ||||
56 | 1 | 2µs | } | ||
57 | |||||
58 | # spent 3.04ms (1.34+1.70) within base::import which was called 12 times, avg 254µs/call:
# once (745µs+1.62ms) by Sys::Info::BEGIN@7 at line 7 of Sys/Info.pm
# once (63µs+9µs) by Iterator::X::IO_Error::BEGIN@3 at line 3 of (eval 14)[Exception/Class.pm:180]
# once (61µs+8µs) by Iterator::X::OptionError::BEGIN@3 at line 3 of (eval 18)[Exception/Class.pm:180]
# once (57µs+8µs) by Iterator::X::Exhausted::BEGIN@3 at line 3 of (eval 16)[Exception/Class.pm:180]
# once (57µs+8µs) by Iterator::X::Internal_Error::BEGIN@3 at line 3 of (eval 20)[Exception/Class.pm:180]
# once (56µs+8µs) by Iterator::X::Am_Now_Exhausted::BEGIN@3 at line 3 of (eval 26)[Exception/Class.pm:180]
# once (55µs+8µs) by Iterator::X::Parameter_Error::BEGIN@3 at line 3 of (eval 22)[Exception/Class.pm:180]
# once (54µs+7µs) by Iterator::X::User_Code_Error::BEGIN@3 at line 3 of (eval 24)[Exception/Class.pm:180]
# once (53µs+9µs) by Sys::Info::Constants::BEGIN@6 at line 6 of Sys/Info/Constants.pm
# once (49µs+6µs) by Iterator::Util::BEGIN@20 at line 20 of Iterator/Util.pm
# once (47µs+7µs) by Exception::Class::Base::BEGIN@13 at line 13 of Exception/Class/Base.pm
# once (43µs+6µs) by Iterator::X::BEGIN@3 at line 3 of (eval 12)[Exception/Class.pm:180] | ||||
59 | 12 | 4µs | my $class = shift; | ||
60 | |||||
61 | 12 | 3µs | return SUCCESS unless @_; | ||
62 | |||||
63 | # List of base classes from which we will inherit %FIELDS. | ||||
64 | 12 | 1µs | my $fields_base; | ||
65 | |||||
66 | 12 | 7µs | my $inheritor = caller(0); | ||
67 | |||||
68 | 12 | 2µs | my @bases; | ||
69 | 12 | 8µs | foreach my $base (@_) { | ||
70 | 12 | 3µs | if ( $inheritor eq $base ) { | ||
71 | warn "Class '$inheritor' tried to inherit from itself\n"; | ||||
72 | } | ||||
73 | |||||
74 | 12 | 96µs | 12 | 17µs | next if grep $_->isa($base), ($inheritor, @bases); # spent 17µs making 12 calls to UNIVERSAL::isa, avg 1µs/call |
75 | |||||
76 | # Following blocks help isolate $SIG{__DIE__} changes | ||||
77 | { | ||||
78 | 24 | 4µs | my $sigdie; | ||
79 | { | ||||
80 | 24 | 24µs | local $SIG{__DIE__}; | ||
81 | 12 | 162µs | eval "require $base"; # spent 116µs executing statements in 7 string evals (merged)
# spent 46µs executing statements in string eval
# spent 3µs executing statements in 2 string evals (merged)
# spent 2µs executing statements in string eval
# spent 2µs executing statements in string eval | ||
82 | # Only ignore "Can't locate" errors from our eval require. | ||||
83 | # Other fatal errors (syntax etc) must be reported. | ||||
84 | 12 | 40µs | 7 | 20µs | die if $@ && $@ !~ /^Can't locate .*? at \(eval /; # spent 20µs making 7 calls to base::CORE:match, avg 3µs/call |
85 | 12 | 21µs | unless (%{"$base\::"}) { | ||
86 | require Carp; | ||||
87 | local $" = " "; | ||||
88 | Carp::croak(<<ERROR); | ||||
89 | Base class package "$base" is empty. | ||||
90 | (Perhaps you need to 'use' the module which defines that package first, | ||||
91 | or make that module available in \@INC (\@INC contains: @INC). | ||||
92 | ERROR | ||||
93 | } | ||||
94 | 12 | 26µs | $sigdie = $SIG{__DIE__} || undef; | ||
95 | } | ||||
96 | # Make sure a global $SIG{__DIE__} makes it out of the localization. | ||||
97 | 12 | 3µs | $SIG{__DIE__} = $sigdie if defined $sigdie; | ||
98 | } | ||||
99 | 12 | 6µs | push @bases, $base; | ||
100 | |||||
101 | 12 | 34µs | 24 | 56µs | if ( has_fields($base) || has_attr($base) ) { # spent 33µs making 12 calls to base::has_fields, avg 3µs/call
# spent 23µs making 12 calls to base::has_attr, avg 2µs/call |
102 | # No multiple fields inheritance *suck* | ||||
103 | if ($fields_base) { | ||||
104 | require Carp; | ||||
105 | Carp::croak("Can't multiply inherit fields"); | ||||
106 | } else { | ||||
107 | $fields_base = $base; | ||||
108 | } | ||||
109 | } | ||||
110 | } | ||||
111 | # Save this until the end so it's all or nothing if the above loop croaks. | ||||
112 | 12 | 80µs | push @{"$inheritor\::ISA"}, @bases; | ||
113 | |||||
114 | 12 | 41µs | if( defined $fields_base ) { | ||
115 | inherit_fields($inheritor, $fields_base); | ||||
116 | } | ||||
117 | } | ||||
118 | |||||
119 | |||||
120 | sub inherit_fields { | ||||
121 | my($derived, $base) = @_; | ||||
122 | |||||
123 | return SUCCESS unless $base; | ||||
124 | |||||
125 | my $battr = get_attr($base); | ||||
126 | my $dattr = get_attr($derived); | ||||
127 | my $dfields = get_fields($derived); | ||||
128 | my $bfields = get_fields($base); | ||||
129 | |||||
130 | $dattr->[0] = @$battr; | ||||
131 | |||||
132 | if( keys %$dfields ) { | ||||
133 | warn <<"END"; | ||||
134 | $derived is inheriting from $base but already has its own fields! | ||||
135 | This will cause problems. Be sure you use base BEFORE declaring fields. | ||||
136 | END | ||||
137 | |||||
138 | } | ||||
139 | |||||
140 | # Iterate through the base's fields adding all the non-private | ||||
141 | # ones to the derived class. Hang on to the original attribute | ||||
142 | # (Public, Private, etc...) and add Inherited. | ||||
143 | # This is all too complicated to do efficiently with add_fields(). | ||||
144 | while (my($k,$v) = each %$bfields) { | ||||
145 | my $fno; | ||||
146 | if ($fno = $dfields->{$k} and $fno != $v) { | ||||
147 | require Carp; | ||||
148 | Carp::croak ("Inherited fields can't override existing fields"); | ||||
149 | } | ||||
150 | |||||
151 | if( $battr->[$v] & PRIVATE ) { | ||||
152 | $dattr->[$v] = PRIVATE | INHERITED; | ||||
153 | } | ||||
154 | else { | ||||
155 | $dattr->[$v] = INHERITED | $battr->[$v]; | ||||
156 | $dfields->{$k} = $v; | ||||
157 | } | ||||
158 | } | ||||
159 | |||||
160 | foreach my $idx (1..$#{$battr}) { | ||||
161 | next if defined $dattr->[$idx]; | ||||
162 | $dattr->[$idx] = $battr->[$idx] & INHERITED; | ||||
163 | } | ||||
164 | } | ||||
165 | |||||
166 | |||||
167 | 1 | 4µs | 1; | ||
168 | |||||
169 | __END__ | ||||
# spent 20µs within base::CORE:match which was called 7 times, avg 3µs/call:
# 7 times (20µs+0s) by base::import at line 84, avg 3µs/call |