| Filename | /usr/share/perl/5.26/vars.pm | 
| Statements | Executed 20 statements in 1.45ms | 
| Calls | P | F | Exclusive Time | Inclusive Time | Subroutine | 
|---|---|---|---|---|---|
| 1 | 1 | 1 | 442µs | 620µs | vars::BEGIN@7 | 
| 1 | 1 | 1 | 62µs | 78µs | vars::import | 
| 1 | 1 | 1 | 30µs | 30µs | vars::BEGIN@3 | 
| 6 | 3 | 1 | 15µs | 15µs | vars::CORE:match (opcode) | 
| 1 | 1 | 1 | 13µs | 36µs | vars::BEGIN@8 | 
| Line | State ments | Time on line | Calls | Time in subs | Code | 
|---|---|---|---|---|---|
| 1 | package vars; | ||||
| 2 | |||||
| 3 | 2 | 114µs | 1 | 30µs | # spent 30µs within vars::BEGIN@3 which was called:
#    once (30µs+0s) by Config::BEGIN@11 at line 3 # spent    30µs making 1 call to vars::BEGIN@3 | 
| 4 | |||||
| 5 | 1 | 1µs | our $VERSION = '1.03'; | ||
| 6 | |||||
| 7 | 2 | 485µs | 2 | 797µs | # spent 620µs (442+177) within vars::BEGIN@7 which was called:
#    once (442µs+177µs) by Config::BEGIN@11 at line 7 # spent   620µs making 1 call to vars::BEGIN@7
# spent   177µs making 1 call to warnings::register::import | 
| 8 | 2 | 759µs | 2 | 60µs | # spent 36µs (13+24) within vars::BEGIN@8 which was called:
#    once (13µs+24µs) by Config::BEGIN@11 at line 8 # spent    36µs making 1 call to vars::BEGIN@8
# spent    24µs making 1 call to strict::import | 
| 9 | |||||
| 10 | # spent 78µs (62+15) within vars::import which was called:
#    once (62µs+15µs) by Config::BEGIN@11 at line 11 of Config.pm | ||||
| 11 | 1 | 2µs | my $callpack = caller; | ||
| 12 | 1 | 3µs | my (undef, @imports) = @_; | ||
| 13 | 1 | 500ns | my ($sym, $ch); | ||
| 14 | 1 | 7µs | foreach (@imports) { | ||
| 15 | 2 | 34µs | 2 | 10µs | if (($ch, $sym) = /^([\$\@\%\*\&])(.+)/) {         # spent    10µs making 2 calls to vars::CORE:match, avg 5µs/call | 
| 16 | 2 | 9µs | 2 | 3µs | if ($sym =~ /\W/) {             # spent     3µs making 2 calls to vars::CORE:match, avg 2µs/call | 
| 17 | # time for a more-detailed check-up | ||||
| 18 | if ($sym =~ /^\w+[[{].*[]}]$/) { | ||||
| 19 | require Carp; | ||||
| 20 | Carp::croak("Can't declare individual elements of hash or array"); | ||||
| 21 | } elsif (warnings::enabled() and length($sym) == 1 and $sym !~ tr/a-zA-Z//) { | ||||
| 22 | warnings::warn("No need to declare built-in vars"); | ||||
| 23 | } elsif (($^H &= strict::bits('vars'))) { | ||||
| 24 | require Carp; | ||||
| 25 | Carp::croak("'$_' is not a valid variable name under strict vars"); | ||||
| 26 | } | ||||
| 27 | } | ||||
| 28 | 2 | 9µs | 2 | 2µs | $sym = "${callpack}::$sym" unless $sym =~ /::/;             # spent     2µs making 2 calls to vars::CORE:match, avg 900ns/call | 
| 29 | *$sym = | ||||
| 30 | ( $ch eq "\$" ? \$$sym | ||||
| 31 | : $ch eq "\@" ? \@$sym | ||||
| 32 | : $ch eq "\%" ? \%$sym | ||||
| 33 | : $ch eq "\*" ? \*$sym | ||||
| 34 | : $ch eq "\&" ? \&$sym | ||||
| 35 | 2 | 15µs | : do { | ||
| 36 | require Carp; | ||||
| 37 | Carp::croak("'$_' is not a valid variable name"); | ||||
| 38 | }); | ||||
| 39 | } else { | ||||
| 40 | require Carp; | ||||
| 41 | Carp::croak("'$_' is not a valid variable name"); | ||||
| 42 | } | ||||
| 43 | } | ||||
| 44 | }; | ||||
| 45 | |||||
| 46 | 1 | 8µs | 1; | ||
| 47 | __END__ | ||||
| sub vars::CORE:match; # opcode |