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For rbm/rbm
  Run on Wed Feb 12 20:36:06 2020
Reported on Wed Feb 12 21:42:25 2020

Filename/usr/share/perl/5.28/feature.pm
StatementsExecuted 43 statements in 77µs
Subroutines
Calls P F Exclusive
Time		 Inclusive
Time		 Subroutine
11125µs25µsfeature::::__commonfeature::__common
1117µs32µsfeature::::importfeature::import
0000s0sfeature::::croakfeature::croak
0000s0sfeature::::unimportfeature::unimport
0000s0sfeature::::unknown_featurefeature::unknown_feature
0000s0sfeature::::unknown_feature_bundlefeature::unknown_feature_bundle
Call graph for these subroutines as a Graphviz dot language file.
Line State
ments		 Time
on line		 Calls Time
in subs		 Code
1# -*- buffer-read-only: t -*-
2# !!!!!!! DO NOT EDIT THIS FILE !!!!!!!
3# This file is built by regen/feature.pl.
4# Any changes made here will be lost!
5
6package feature;
7
81400nsour $VERSION = '1.52';
9
10112µsour %feature = (
11 fc => 'feature_fc',
12 say => 'feature_say',
13 state => 'feature_state',
14 switch => 'feature_switch',
15 bitwise => 'feature_bitwise',
16 evalbytes => 'feature_evalbytes',
17 array_base => 'feature_arybase',
18 signatures => 'feature_signatures',
19 current_sub => 'feature___SUB__',
20 refaliasing => 'feature_refaliasing',
21 postderef_qq => 'feature_postderef_qq',
22 unicode_eval => 'feature_unieval',
23 declared_refs => 'feature_myref',
24 unicode_strings => 'feature_unicode',
25);
26
2716µsour %feature_bundle = (
28 "5.10" => [qw(array_base say state switch)],
29 "5.11" => [qw(array_base say state switch unicode_strings)],
30 "5.15" => [qw(current_sub evalbytes fc say state switch unicode_eval unicode_strings)],
31 "5.23" => [qw(current_sub evalbytes fc postderef_qq say state switch unicode_eval unicode_strings)],
32 "5.27" => [qw(bitwise current_sub evalbytes fc postderef_qq say state switch unicode_eval unicode_strings)],
33 "all" => [qw(array_base bitwise current_sub declared_refs evalbytes fc postderef_qq refaliasing say signatures state switch unicode_eval unicode_strings)],
34 "default" => [qw(array_base)],
35);
36
371600ns$feature_bundle{"5.12"} = $feature_bundle{"5.11"};
381300ns$feature_bundle{"5.13"} = $feature_bundle{"5.11"};
391300ns$feature_bundle{"5.14"} = $feature_bundle{"5.11"};
401600ns$feature_bundle{"5.16"} = $feature_bundle{"5.15"};
411200ns$feature_bundle{"5.17"} = $feature_bundle{"5.15"};
421200ns$feature_bundle{"5.18"} = $feature_bundle{"5.15"};
431200ns$feature_bundle{"5.19"} = $feature_bundle{"5.15"};
441200ns$feature_bundle{"5.20"} = $feature_bundle{"5.15"};
451200ns$feature_bundle{"5.21"} = $feature_bundle{"5.15"};
461100ns$feature_bundle{"5.22"} = $feature_bundle{"5.15"};
471200ns$feature_bundle{"5.24"} = $feature_bundle{"5.23"};
481200ns$feature_bundle{"5.25"} = $feature_bundle{"5.23"};
491200ns$feature_bundle{"5.26"} = $feature_bundle{"5.23"};
501200ns$feature_bundle{"5.28"} = $feature_bundle{"5.27"};
511200ns$feature_bundle{"5.9.5"} = $feature_bundle{"5.10"};
5212µsmy %noops = (
53 postderef => 1,
54 lexical_subs => 1,
55);
56
571100nsour $hint_shift = 26;
581100nsour $hint_mask = 0x1c000000;
591900nsour @hint_bundles = qw( default 5.10 5.11 5.15 5.23 5.27 );
60
61# This gets set (for now) in $^H as well as in %^H,
62# for runtime speed of the uc/lc/ucfirst/lcfirst functions.
63# See HINT_UNI_8_BIT in perl.h.
641100nsour $hint_uni8bit = 0x00000800;
65
66# TODO:
67# - think about versioned features (use feature switch => 2)
68
69
# spent 32µs (7+25) within feature::import which was called: # once (7µs+25µs) by RBM::BEGIN@24 at line 24 of /root/tor-browser-build/rbm/lib/RBM.pm
sub import {
701200ns shift;
71
721200ns if (!@_) {
73 croak("No features specified");
74 }
75
7613µs125µs __common(1, @_);
# spent 25µs making 1 call to feature::__common
77}
78
79sub unimport {
80 shift;
81
82 # A bare C<no feature> should reset to the default bundle
83 if (!@_) {
84 $^H &= ~($hint_uni8bit|$hint_mask);
85 return;
86 }
87
88 __common(0, @_);
89}
90
91
# spent 25µs within feature::__common which was called: # once (25µs+0s) by feature::import at line 76
sub __common {
921200ns my $import = shift;
9311µs my $bundle_number = $^H & $hint_mask;
94 my $features = $bundle_number != $hint_mask
951900ns && $feature_bundle{$hint_bundles[$bundle_number >> $hint_shift]};
961300ns if ($features) {
97 # Features are enabled implicitly via bundle hints.
98 # Delete any keys that may be left over from last time.
99115µs delete @^H{ values(%feature) };
1001700ns $^H |= $hint_mask;
1011500ns for (@$features) {
10211µs $^H{$feature{$_}} = 1;
1031500ns $^H |= $hint_uni8bit if $_ eq 'unicode_strings';
104 }
105 }
10616µs while (@_) {
1071200ns my $name = shift;
1081900ns if (substr($name, 0, 1) eq ":") {
109 my $v = substr($name, 1);
110 if (!exists $feature_bundle{$v}) {
111 $v =~ s/^([0-9]+)\.([0-9]+).[0-9]+$/$1.$2/;
112 if (!exists $feature_bundle{$v}) {
113 unknown_feature_bundle(substr($name, 1));
114 }
115 }
116 unshift @_, @{$feature_bundle{$v}};
117 next;
118 }
1191300ns if (!exists $feature{$name}) {
120 if (exists $noops{$name}) {
121 next;
122 }
123 unknown_feature($name);
124 }
1251700ns if ($import) {
12611µs $^H{$feature{$name}} = 1;
1271100ns $^H |= $hint_uni8bit if $name eq 'unicode_strings';
128 } else {
129 delete $^H{$feature{$name}};
130 $^H &= ~ $hint_uni8bit if $name eq 'unicode_strings';
131 }
132 }
133}
134
135sub unknown_feature {
136 my $feature = shift;
137 croak(sprintf('Feature "%s" is not supported by Perl %vd',
138 $feature, $^V));
139}
140
141sub unknown_feature_bundle {
142 my $feature = shift;
143 croak(sprintf('Feature bundle "%s" is not supported by Perl %vd',
144 $feature, $^V));
145}
146
147sub croak {
148 require Carp;
149 Carp::croak(@_);
150}
151
152118µs1;
153
154# ex: set ro:
Report produced by the NYTProf 6.06 Perl profiler, developed by Tim Bunce based on work by Adam Kaplan and Salvador Fandiño García.