| Filename | /usr/share/perl5/Class/Load.pm |
| Statements | Executed 26 statements in 2.51ms |
| Calls | P | F | Exclusive Time |
Inclusive Time |
Subroutine |
|---|---|---|---|---|---|
| 1 | 1 | 1 | 1.86ms | 10.5ms | Class::Load::BEGIN@19 |
| 1 | 1 | 1 | 1.28ms | 6.59ms | Class::Load::BEGIN@10 |
| 1 | 1 | 1 | 14µs | 26µs | DateTime::TimeZone::Local::BEGIN@1 |
| 1 | 1 | 1 | 10µs | 18µs | Class::Load::BEGIN@11 |
| 1 | 1 | 1 | 10µs | 39µs | Class::Load::BEGIN@12 |
| 1 | 1 | 1 | 7µs | 71µs | Class::Load::BEGIN@9 |
| 1 | 1 | 1 | 7µs | 11µs | DateTime::TimeZone::Local::BEGIN@2 |
| 1 | 1 | 1 | 7µs | 33µs | Class::Load::BEGIN@18 |
| 0 | 0 | 0 | 0s | 0s | Class::Load::__ANON__[:155] |
| 0 | 0 | 0 | 0s | 0s | Class::Load::__ANON__[:158] |
| 0 | 0 | 0 | 0s | 0s | Class::Load::__ANON__[:183] |
| 0 | 0 | 0 | 0s | 0s | Class::Load::__ANON__[:186] |
| 0 | 0 | 0 | 0s | 0s | Class::Load::_croak |
| 0 | 0 | 0 | 0s | 0s | Class::Load::_error |
| 0 | 0 | 0 | 0s | 0s | Class::Load::_nonexistent_fail_re |
| 0 | 0 | 0 | 0s | 0s | Class::Load::_or_list |
| 0 | 0 | 0 | 0s | 0s | Class::Load::_version_fail_re |
| 0 | 0 | 0 | 0s | 0s | Class::Load::load_class |
| 0 | 0 | 0 | 0s | 0s | Class::Load::load_first_existing_class |
| 0 | 0 | 0 | 0s | 0s | Class::Load::load_optional_class |
| 0 | 0 | 0 | 0s | 0s | Class::Load::try_load_class |
| Line | State ments |
Time on line |
Calls | Time in subs |
Code |
|---|---|---|---|---|---|
| 1 | 2 | 23µs | 2 | 38µs | # spent 26µs (14+12) within DateTime::TimeZone::Local::BEGIN@1 which was called:
# once (14µs+12µs) by DateTime::TimeZone::Local::BEGIN@6 at line 1 # spent 26µs making 1 call to DateTime::TimeZone::Local::BEGIN@1
# spent 12µs making 1 call to strict::import |
| 2 | 2 | 46µs | 2 | 15µs | # spent 11µs (7+4) within DateTime::TimeZone::Local::BEGIN@2 which was called:
# once (7µs+4µs) by DateTime::TimeZone::Local::BEGIN@6 at line 2 # spent 11µs making 1 call to DateTime::TimeZone::Local::BEGIN@2
# spent 4µs making 1 call to warnings::import |
| 3 | package Class::Load; | ||||
| 4 | # git description: v0.21-14-g8465ff7 | ||||
| 5 | 1 | 300ns | $Class::Load::VERSION = '0.22'; | ||
| 6 | # ABSTRACT: A working (require "Class::Name") and more | ||||
| 7 | # KEYWORDS: class module load require use runtime | ||||
| 8 | |||||
| 9 | 2 | 34µs | 2 | 134µs | # spent 71µs (7+63) within Class::Load::BEGIN@9 which was called:
# once (7µs+63µs) by DateTime::TimeZone::Local::BEGIN@6 at line 9 # spent 71µs making 1 call to Class::Load::BEGIN@9
# spent 63µs making 1 call to base::import |
| 10 | 2 | 751µs | 2 | 6.65ms | # spent 6.59ms (1.28+5.31) within Class::Load::BEGIN@10 which was called:
# once (1.28ms+5.31ms) by DateTime::TimeZone::Local::BEGIN@6 at line 10 # spent 6.59ms making 1 call to Class::Load::BEGIN@10
# spent 58µs making 1 call to Sub::Install::__ANON__[Sub/Install.pm:270] |
| 11 | 3 | 44µs | 2 | 26µs | # spent 18µs (10+8) within Class::Load::BEGIN@11 which was called:
# once (10µs+8µs) by DateTime::TimeZone::Local::BEGIN@6 at line 11 # spent 18µs making 1 call to Class::Load::BEGIN@11
# spent 8µs making 1 call to UNIVERSAL::VERSION |
| 12 | 1 | 3µs | 1 | 22µs | # spent 39µs (10+30) within Class::Load::BEGIN@12 which was called:
# once (10µs+30µs) by DateTime::TimeZone::Local::BEGIN@6 at line 17 # spent 22µs making 1 call to Module::Runtime::import |
| 13 | check_module_name | ||||
| 14 | module_notional_filename | ||||
| 15 | require_module | ||||
| 16 | use_module | ||||
| 17 | 2 | 32µs | 2 | 46µs | ); # spent 39µs making 1 call to Class::Load::BEGIN@12
# spent 7µs making 1 call to UNIVERSAL::VERSION |
| 18 | 2 | 21µs | 2 | 59µs | # spent 33µs (7+26) within Class::Load::BEGIN@18 which was called:
# once (7µs+26µs) by DateTime::TimeZone::Local::BEGIN@6 at line 18 # spent 33µs making 1 call to Class::Load::BEGIN@18
# spent 26µs making 1 call to Exporter::import |
| 19 | 2 | 1.53ms | 2 | 10.7ms | # spent 10.5ms (1.86+8.63) within Class::Load::BEGIN@19 which was called:
# once (1.86ms+8.63ms) by DateTime::TimeZone::Local::BEGIN@6 at line 19 # spent 10.5ms making 1 call to Class::Load::BEGIN@19
# spent 226µs making 1 call to namespace::clean::import |
| 20 | |||||
| 21 | { | ||||
| 22 | 2 | 3µs | 1 | 16µs | my $loader = Module::Implementation::build_loader_sub( # spent 16µs making 1 call to Module::Implementation::build_loader_sub |
| 23 | implementations => [ 'XS', 'PP' ], | ||||
| 24 | symbols => ['is_class_loaded'], | ||||
| 25 | ); | ||||
| 26 | |||||
| 27 | 1 | 3µs | 1 | 1.09ms | $loader->(); # spent 1.09ms making 1 call to Module::Implementation::__ANON__[Module/Implementation.pm:52] |
| 28 | } | ||||
| 29 | |||||
| 30 | 1 | 900ns | our @EXPORT_OK = qw/load_class load_optional_class try_load_class is_class_loaded load_first_existing_class/; | ||
| 31 | 1 | 1µs | our %EXPORT_TAGS = ( | ||
| 32 | all => \@EXPORT_OK, | ||||
| 33 | ); | ||||
| 34 | |||||
| 35 | 1 | 100ns | our $ERROR; | ||
| 36 | |||||
| 37 | sub load_class { | ||||
| 38 | my $class = shift; | ||||
| 39 | my $options = shift; | ||||
| 40 | |||||
| 41 | my ($res, $e) = try_load_class($class, $options); | ||||
| 42 | return $class if $res; | ||||
| 43 | |||||
| 44 | _croak($e); | ||||
| 45 | } | ||||
| 46 | |||||
| 47 | sub load_first_existing_class { | ||||
| 48 | my $classes = Data::OptList::mkopt(\@_) | ||||
| 49 | or return; | ||||
| 50 | |||||
| 51 | foreach my $class (@{$classes}) { | ||||
| 52 | check_module_name($class->[0]); | ||||
| 53 | } | ||||
| 54 | |||||
| 55 | for my $class (@{$classes}) { | ||||
| 56 | my ($name, $options) = @{$class}; | ||||
| 57 | |||||
| 58 | # We need to be careful not to pass an undef $options to this sub, | ||||
| 59 | # since the XS version will blow up if that happens. | ||||
| 60 | return $name if is_class_loaded($name, ($options ? $options : ())); | ||||
| 61 | |||||
| 62 | my ($res, $e) = try_load_class($name, $options); | ||||
| 63 | |||||
| 64 | return $name if $res; | ||||
| 65 | |||||
| 66 | my $file = module_notional_filename($name); | ||||
| 67 | |||||
| 68 | next if $e =~ /^Can't locate \Q$file\E in \@INC/; | ||||
| 69 | next | ||||
| 70 | if $options | ||||
| 71 | && defined $options->{-version} | ||||
| 72 | && $e =~ _version_fail_re($name, $options->{-version}); | ||||
| 73 | |||||
| 74 | _croak("Couldn't load class ($name) because: $e"); | ||||
| 75 | } | ||||
| 76 | |||||
| 77 | my @list = map { | ||||
| 78 | $_->[0] | ||||
| 79 | . ( $_->[1] && defined $_->[1]{-version} | ||||
| 80 | ? " (version >= $_->[1]{-version})" | ||||
| 81 | : q{} ) | ||||
| 82 | } @{$classes}; | ||||
| 83 | |||||
| 84 | my $err | ||||
| 85 | .= q{Can't locate } | ||||
| 86 | . _or_list(@list) | ||||
| 87 | . " in \@INC (\@INC contains: @INC)."; | ||||
| 88 | _croak($err); | ||||
| 89 | } | ||||
| 90 | |||||
| 91 | sub _version_fail_re { | ||||
| 92 | my $name = shift; | ||||
| 93 | my $vers = shift; | ||||
| 94 | |||||
| 95 | return qr/\Q$name\E version \Q$vers\E required--this is only version/; | ||||
| 96 | } | ||||
| 97 | |||||
| 98 | sub _nonexistent_fail_re { | ||||
| 99 | my $name = shift; | ||||
| 100 | |||||
| 101 | my $file = module_notional_filename($name); | ||||
| 102 | return qr/Can't locate \Q$file\E in \@INC/; | ||||
| 103 | } | ||||
| 104 | |||||
| 105 | sub _or_list { | ||||
| 106 | return $_[0] if @_ == 1; | ||||
| 107 | |||||
| 108 | return join ' or ', @_ if @_ ==2; | ||||
| 109 | |||||
| 110 | my $last = pop; | ||||
| 111 | |||||
| 112 | my $list = join ', ', @_; | ||||
| 113 | $list .= ', or ' . $last; | ||||
| 114 | |||||
| 115 | return $list; | ||||
| 116 | } | ||||
| 117 | |||||
| 118 | sub load_optional_class { | ||||
| 119 | my $class = shift; | ||||
| 120 | my $options = shift; | ||||
| 121 | |||||
| 122 | check_module_name($class); | ||||
| 123 | |||||
| 124 | my ($res, $e) = try_load_class($class, $options); | ||||
| 125 | return 1 if $res; | ||||
| 126 | |||||
| 127 | return 0 | ||||
| 128 | if $options | ||||
| 129 | && defined $options->{-version} | ||||
| 130 | && $e =~ _version_fail_re($class, $options->{-version}); | ||||
| 131 | |||||
| 132 | return 0 | ||||
| 133 | if $e =~ _nonexistent_fail_re($class); | ||||
| 134 | |||||
| 135 | _croak($e); | ||||
| 136 | } | ||||
| 137 | |||||
| 138 | sub try_load_class { | ||||
| 139 | my $class = shift; | ||||
| 140 | my $options = shift; | ||||
| 141 | |||||
| 142 | check_module_name($class); | ||||
| 143 | |||||
| 144 | local $@; | ||||
| 145 | undef $ERROR; | ||||
| 146 | |||||
| 147 | if (is_class_loaded($class)) { | ||||
| 148 | # We need to check this here rather than in is_class_loaded() because | ||||
| 149 | # we want to return the error message for a failed version check, but | ||||
| 150 | # is_class_loaded just returns true/false. | ||||
| 151 | return 1 unless $options && defined $options->{-version}; | ||||
| 152 | return try { | ||||
| 153 | $class->VERSION($options->{-version}); | ||||
| 154 | 1; | ||||
| 155 | } | ||||
| 156 | catch { | ||||
| 157 | _error($_); | ||||
| 158 | }; | ||||
| 159 | } | ||||
| 160 | |||||
| 161 | my $file = module_notional_filename($class); | ||||
| 162 | # This says "our diagnostics of the package | ||||
| 163 | # say perl's INC status about the file being loaded are | ||||
| 164 | # wrong", so we delete it from %INC, so when we call require(), | ||||
| 165 | # perl will *actually* try reloading the file. | ||||
| 166 | # | ||||
| 167 | # If the file is already in %INC, it won't retry, | ||||
| 168 | # And on 5.8, it won't fail either! | ||||
| 169 | # | ||||
| 170 | # The extra benefit of this trick, is it helps even on | ||||
| 171 | # 5.10, as instead of dying with "Compilation failed", | ||||
| 172 | # it will die with the actual error, and that's a win-win. | ||||
| 173 | delete $INC{$file}; | ||||
| 174 | return try { | ||||
| 175 | local $SIG{__DIE__} = 'DEFAULT'; | ||||
| 176 | if ($options && defined $options->{-version}) { | ||||
| 177 | use_module($class, $options->{-version}); | ||||
| 178 | } | ||||
| 179 | else { | ||||
| 180 | require_module($class); | ||||
| 181 | } | ||||
| 182 | 1; | ||||
| 183 | } | ||||
| 184 | catch { | ||||
| 185 | _error($_); | ||||
| 186 | }; | ||||
| 187 | } | ||||
| 188 | |||||
| 189 | sub _error { | ||||
| 190 | my $e = shift; | ||||
| 191 | |||||
| 192 | $e =~ s/ at .+?Runtime\.pm line [0-9]+\.$//; | ||||
| 193 | chomp $e; | ||||
| 194 | |||||
| 195 | $ERROR = $e; | ||||
| 196 | return 0 unless wantarray; | ||||
| 197 | return 0, $ERROR; | ||||
| 198 | } | ||||
| 199 | |||||
| 200 | sub _croak { | ||||
| 201 | require Carp; | ||||
| 202 | local $Carp::CarpLevel = $Carp::CarpLevel + 2; | ||||
| 203 | Carp::croak(shift); | ||||
| 204 | } | ||||
| 205 | |||||
| 206 | 1 | 4µs | 1; | ||
| 207 | |||||
| 208 | 1 | 13µs | 1 | 246µs | __END__ # spent 246µs making 1 call to B::Hooks::EndOfScope::XS::__ANON__[B/Hooks/EndOfScope/XS.pm:26] |