| Filename | /home/s1/perl5/perlbrew/perls/perl-5.22.1/lib/site_perl/5.22.1/base.pm |
| Statements | Executed 113 statements in 1.17ms |
| Calls | P | F | Exclusive Time |
Inclusive Time |
Subroutine |
|---|---|---|---|---|---|
| 3 | 3 | 1 | 135µs | 192µs | base::import |
| 3 | 1 | 1 | 23µs | 33µs | base::__ANON__[:72] |
| 1 | 1 | 1 | 19µs | 19µs | DateTime::Infinite::BEGIN@1 |
| 3 | 1 | 1 | 10µs | 10µs | base::has_fields |
| 3 | 1 | 1 | 7µs | 7µs | base::CORE:subst (opcode) |
| 1 | 1 | 1 | 6µs | 29µs | base::BEGIN@5 |
| 3 | 1 | 1 | 6µs | 6µs | base::has_attr |
| 1 | 1 | 1 | 6µs | 18µs | base::BEGIN@4 |
| 3 | 1 | 1 | 2µs | 2µs | base::CORE:match (opcode) |
| 0 | 0 | 0 | 0s | 0s | base::__ANON__[:49] |
| 0 | 0 | 0 | 0s | 0s | base::__ANON__[:56] |
| 0 | 0 | 0 | 0s | 0s | base::__ANON__[:64] |
| 0 | 0 | 0 | 0s | 0s | base::get_attr |
| 0 | 0 | 0 | 0s | 0s | base::inherit_fields |
| Line | State ments |
Time on line |
Calls | Time in subs |
Code |
|---|---|---|---|---|---|
| 1 | 2 | 47µs | 1 | 19µs | # spent 19µs within DateTime::Infinite::BEGIN@1 which was called:
# once (19µs+0s) by DateTime::Infinite::BEGIN@11 at line 1 # spent 19µs making 1 call to DateTime::Infinite::BEGIN@1 |
| 2 | package base; | ||||
| 3 | |||||
| 4 | 2 | 29µs | 2 | 29µs | # spent 18µs (6+12) within base::BEGIN@4 which was called:
# once (6µs+12µs) by DateTime::Infinite::BEGIN@11 at line 4 # spent 18µs making 1 call to base::BEGIN@4
# spent 12µs making 1 call to strict::import |
| 5 | 2 | 878µs | 2 | 52µs | # spent 29µs (6+23) within base::BEGIN@5 which was called:
# once (6µs+23µs) by DateTime::Infinite::BEGIN@11 at line 5 # spent 29µs making 1 call to base::BEGIN@5
# spent 23µs making 1 call to vars::import |
| 6 | 1 | 800ns | $VERSION = '2.23'; | ||
| 7 | 1 | 2µs | $VERSION =~ tr/_//d; | ||
| 8 | |||||
| 9 | # constant.pm is slow | ||||
| 10 | sub SUCCESS () { 1 } | ||||
| 11 | |||||
| 12 | sub PUBLIC () { 2**0 } | ||||
| 13 | sub PRIVATE () { 2**1 } | ||||
| 14 | sub INHERITED () { 2**2 } | ||||
| 15 | sub PROTECTED () { 2**3 } | ||||
| 16 | |||||
| 17 | |||||
| 18 | 1 | 1µs | my $Fattr = \%fields::attr; | ||
| 19 | |||||
| 20 | # spent 10µs within base::has_fields which was called 3 times, avg 3µs/call:
# 3 times (10µs+0s) by base::import at line 127, avg 3µs/call | ||||
| 21 | 3 | 2µs | my($base) = shift; | ||
| 22 | 3 | 3µs | my $fglob = ${"$base\::"}{FIELDS}; | ||
| 23 | 3 | 7µs | return( ($fglob && 'GLOB' eq ref($fglob) && *$fglob{HASH}) ? 1 : 0 ); | ||
| 24 | } | ||||
| 25 | |||||
| 26 | # spent 6µs within base::has_attr which was called 3 times, avg 2µs/call:
# 3 times (6µs+0s) by base::import at line 127, avg 2µs/call | ||||
| 27 | 3 | 1µs | my($proto) = shift; | ||
| 28 | 3 | 1µs | my($class) = ref $proto || $proto; | ||
| 29 | 3 | 7µs | return exists $Fattr->{$class}; | ||
| 30 | } | ||||
| 31 | |||||
| 32 | sub get_attr { | ||||
| 33 | $Fattr->{$_[0]} = [1] unless $Fattr->{$_[0]}; | ||||
| 34 | return $Fattr->{$_[0]}; | ||||
| 35 | } | ||||
| 36 | |||||
| 37 | 1 | 2µs | if ($] < 5.009) { | ||
| 38 | *get_fields = sub { | ||||
| 39 | # Shut up a possible typo warning. | ||||
| 40 | () = \%{$_[0].'::FIELDS'}; | ||||
| 41 | my $f = \%{$_[0].'::FIELDS'}; | ||||
| 42 | |||||
| 43 | # should be centralized in fields? perhaps | ||||
| 44 | # fields::mk_FIELDS_be_OK. Peh. As long as %{ $package . '::FIELDS' } | ||||
| 45 | # is used here anyway, it doesn't matter. | ||||
| 46 | bless $f, 'pseudohash' if (ref($f) ne 'pseudohash'); | ||||
| 47 | |||||
| 48 | return $f; | ||||
| 49 | } | ||||
| 50 | } | ||||
| 51 | else { | ||||
| 52 | *get_fields = sub { | ||||
| 53 | # Shut up a possible typo warning. | ||||
| 54 | () = \%{$_[0].'::FIELDS'}; | ||||
| 55 | return \%{$_[0].'::FIELDS'}; | ||||
| 56 | } | ||||
| 57 | 1 | 5µs | } | ||
| 58 | |||||
| 59 | 1 | 200ns | if ($] < 5.008) { | ||
| 60 | *_module_to_filename = sub { | ||||
| 61 | (my $fn = $_[0]) =~ s!::!/!g; | ||||
| 62 | $fn .= '.pm'; | ||||
| 63 | return $fn; | ||||
| 64 | } | ||||
| 65 | } | ||||
| 66 | else { | ||||
| 67 | # spent 33µs (23+10) within base::__ANON__[/home/s1/perl5/perlbrew/perls/perl-5.22.1/lib/site_perl/5.22.1/base.pm:72] which was called 3 times, avg 11µs/call:
# 3 times (23µs+10µs) by base::import at line 99, avg 11µs/call | ||||
| 68 | 3 | 17µs | 3 | 7µs | (my $fn = $_[0]) =~ s!::!/!g; # spent 7µs making 3 calls to base::CORE:subst, avg 2µs/call |
| 69 | 3 | 2µs | $fn .= '.pm'; | ||
| 70 | 3 | 10µs | 3 | 3µs | utf8::encode($fn); # spent 3µs making 3 calls to utf8::encode, avg 1µs/call |
| 71 | 3 | 8µs | return $fn; | ||
| 72 | } | ||||
| 73 | 1 | 1µs | } | ||
| 74 | |||||
| 75 | |||||
| 76 | # spent 192µs (135+56) within base::import which was called 3 times, avg 64µs/call:
# once (70µs+28µs) by DateTime::Infinite::BEGIN@11 at line 11 of DateTime/Infinite.pm
# once (37µs+15µs) by DateTime::Infinite::Future::BEGIN@75 at line 75 of DateTime/Infinite.pm
# once (29µs+13µs) by DateTime::Infinite::Past::BEGIN@100 at line 100 of DateTime/Infinite.pm | ||||
| 77 | 3 | 2µs | my $class = shift; | ||
| 78 | |||||
| 79 | 3 | 2µs | return SUCCESS unless @_; | ||
| 80 | |||||
| 81 | # List of base classes from which we will inherit %FIELDS. | ||||
| 82 | 3 | 500ns | my $fields_base; | ||
| 83 | |||||
| 84 | 3 | 2µs | my $inheritor = caller(0); | ||
| 85 | |||||
| 86 | 3 | 600ns | my @bases; | ||
| 87 | 3 | 2µs | foreach my $base (@_) { | ||
| 88 | 3 | 1µs | if ( $inheritor eq $base ) { | ||
| 89 | warn "Class '$inheritor' tried to inherit from itself\n"; | ||||
| 90 | } | ||||
| 91 | |||||
| 92 | 3 | 33µs | 3 | 6µs | next if grep $_->isa($base), ($inheritor, @bases); # spent 6µs making 3 calls to UNIVERSAL::isa, avg 2µs/call |
| 93 | |||||
| 94 | # Following blocks help isolate $SIG{__DIE__} changes | ||||
| 95 | { | ||||
| 96 | 6 | 1µs | my $sigdie; | ||
| 97 | { | ||||
| 98 | 6 | 6µs | local $SIG{__DIE__}; | ||
| 99 | 3 | 4µs | 3 | 33µs | my $fn = _module_to_filename($base); # spent 33µs making 3 calls to base::__ANON__[base.pm:72], avg 11µs/call |
| 100 | 6 | 4µs | eval { require $fn }; | ||
| 101 | # Only ignore "Can't locate" errors from our eval require. | ||||
| 102 | # Other fatal errors (syntax etc) must be reported. | ||||
| 103 | # | ||||
| 104 | # changing the check here is fragile - if the check | ||||
| 105 | # here isn't catching every error you want, you should | ||||
| 106 | # probably be using parent.pm, which doesn't try to | ||||
| 107 | # guess whether require is needed or failed, | ||||
| 108 | # see [perl #118561] | ||||
| 109 | 3 | 12µs | 3 | 2µs | die if $@ && $@ !~ /^Can't locate \Q$fn\E .*? at .* line [0-9]+(?:, <[^>]*> (?:line|chunk) [0-9]+)?\.\n\z/s # spent 2µs making 3 calls to base::CORE:match, avg 567ns/call |
| 110 | || $@ =~ /Compilation failed in require at .* line [0-9]+(?:, <[^>]*> (?:line|chunk) [0-9]+)?\.\n\z/; | ||||
| 111 | 3 | 9µs | unless (%{"$base\::"}) { | ||
| 112 | require Carp; | ||||
| 113 | local $" = " "; | ||||
| 114 | Carp::croak(<<ERROR); | ||||
| 115 | Base class package "$base" is empty. | ||||
| 116 | (Perhaps you need to 'use' the module which defines that package first, | ||||
| 117 | or make that module available in \@INC (\@INC contains: @INC). | ||||
| 118 | ERROR | ||||
| 119 | } | ||||
| 120 | 3 | 11µs | $sigdie = $SIG{__DIE__} || undef; | ||
| 121 | } | ||||
| 122 | # Make sure a global $SIG{__DIE__} makes it out of the localization. | ||||
| 123 | 3 | 800ns | $SIG{__DIE__} = $sigdie if defined $sigdie; | ||
| 124 | } | ||||
| 125 | 3 | 2µs | push @bases, $base; | ||
| 126 | |||||
| 127 | 3 | 8µs | 6 | 16µs | if ( has_fields($base) || has_attr($base) ) { # spent 10µs making 3 calls to base::has_fields, avg 3µs/call
# spent 6µs making 3 calls to base::has_attr, avg 2µs/call |
| 128 | # No multiple fields inheritance *suck* | ||||
| 129 | if ($fields_base) { | ||||
| 130 | require Carp; | ||||
| 131 | Carp::croak("Can't multiply inherit fields"); | ||||
| 132 | } else { | ||||
| 133 | $fields_base = $base; | ||||
| 134 | } | ||||
| 135 | } | ||||
| 136 | } | ||||
| 137 | # Save this until the end so it's all or nothing if the above loop croaks. | ||||
| 138 | 3 | 27µs | push @{"$inheritor\::ISA"}, @bases; | ||
| 139 | |||||
| 140 | 3 | 10µs | if( defined $fields_base ) { | ||
| 141 | inherit_fields($inheritor, $fields_base); | ||||
| 142 | } | ||||
| 143 | } | ||||
| 144 | |||||
| 145 | |||||
| 146 | sub inherit_fields { | ||||
| 147 | my($derived, $base) = @_; | ||||
| 148 | |||||
| 149 | return SUCCESS unless $base; | ||||
| 150 | |||||
| 151 | my $battr = get_attr($base); | ||||
| 152 | my $dattr = get_attr($derived); | ||||
| 153 | my $dfields = get_fields($derived); | ||||
| 154 | my $bfields = get_fields($base); | ||||
| 155 | |||||
| 156 | $dattr->[0] = @$battr; | ||||
| 157 | |||||
| 158 | if( keys %$dfields ) { | ||||
| 159 | warn <<"END"; | ||||
| 160 | $derived is inheriting from $base but already has its own fields! | ||||
| 161 | This will cause problems. Be sure you use base BEFORE declaring fields. | ||||
| 162 | END | ||||
| 163 | |||||
| 164 | } | ||||
| 165 | |||||
| 166 | # Iterate through the base's fields adding all the non-private | ||||
| 167 | # ones to the derived class. Hang on to the original attribute | ||||
| 168 | # (Public, Private, etc...) and add Inherited. | ||||
| 169 | # This is all too complicated to do efficiently with add_fields(). | ||||
| 170 | while (my($k,$v) = each %$bfields) { | ||||
| 171 | my $fno; | ||||
| 172 | if ($fno = $dfields->{$k} and $fno != $v) { | ||||
| 173 | require Carp; | ||||
| 174 | Carp::croak ("Inherited fields can't override existing fields"); | ||||
| 175 | } | ||||
| 176 | |||||
| 177 | if( $battr->[$v] & PRIVATE ) { | ||||
| 178 | $dattr->[$v] = PRIVATE | INHERITED; | ||||
| 179 | } | ||||
| 180 | else { | ||||
| 181 | $dattr->[$v] = INHERITED | $battr->[$v]; | ||||
| 182 | $dfields->{$k} = $v; | ||||
| 183 | } | ||||
| 184 | } | ||||
| 185 | |||||
| 186 | foreach my $idx (1..$#{$battr}) { | ||||
| 187 | next if defined $dattr->[$idx]; | ||||
| 188 | $dattr->[$idx] = $battr->[$idx] & INHERITED; | ||||
| 189 | } | ||||
| 190 | } | ||||
| 191 | |||||
| 192 | |||||
| 193 | 1 | 6µs | 1; | ||
| 194 | |||||
| 195 | __END__ | ||||
# spent 2µs within base::CORE:match which was called 3 times, avg 567ns/call:
# 3 times (2µs+0s) by base::import at line 109, avg 567ns/call | |||||
# spent 7µs within base::CORE:subst which was called 3 times, avg 2µs/call:
# 3 times (7µs+0s) by base::__ANON__[/home/s1/perl5/perlbrew/perls/perl-5.22.1/lib/site_perl/5.22.1/base.pm:72] at line 68, avg 2µs/call |