| Filename | /home/ss5/perl5/perlbrew/perls/tapper-perl/lib/5.16.3/overload.pm |
| Statements | Executed 128 statements in 951µs |
| Calls | P | F | Exclusive Time |
Inclusive Time |
Subroutine |
|---|---|---|---|---|---|
| 1 | 1 | 1 | 402µs | 464µs | overload::BEGIN@85 |
| 5 | 1 | 1 | 144µs | 146µs | overload::OVERLOAD |
| 5 | 5 | 5 | 53µs | 198µs | overload::import |
| 1 | 1 | 1 | 12µs | 19µs | overload::BEGIN@116 |
| 1 | 1 | 1 | 11µs | 107µs | overload::BEGIN@146 |
| 1 | 1 | 1 | 1µs | 1µs | overload::CORE:match (opcode) |
| 0 | 0 | 0 | 0s | 0s | overload::AddrRef |
| 0 | 0 | 0 | 0s | 0s | overload::Method |
| 0 | 0 | 0 | 0s | 0s | overload::Overloaded |
| 0 | 0 | 0 | 0s | 0s | overload::OverloadedStringify |
| 0 | 0 | 0 | 0s | 0s | overload::constant |
| 0 | 0 | 0 | 0s | 0s | overload::mycan |
| 0 | 0 | 0 | 0s | 0s | overload::nil |
| 0 | 0 | 0 | 0s | 0s | overload::ov_method |
| 0 | 0 | 0 | 0s | 0s | overload::remove_constant |
| 0 | 0 | 0 | 0s | 0s | overload::unimport |
| Line | State ments |
Time on line |
Calls | Time in subs |
Code |
|---|---|---|---|---|---|
| 1 | package overload; | ||||
| 2 | |||||
| 3 | 1 | 600ns | our $VERSION = '1.18'; | ||
| 4 | |||||
| 5 | 1 | 9µs | %ops = ( | ||
| 6 | with_assign => "+ - * / % ** << >> x .", | ||||
| 7 | assign => "+= -= *= /= %= **= <<= >>= x= .=", | ||||
| 8 | num_comparison => "< <= > >= == !=", | ||||
| 9 | '3way_comparison' => "<=> cmp", | ||||
| 10 | str_comparison => "lt le gt ge eq ne", | ||||
| 11 | binary => '& &= | |= ^ ^=', | ||||
| 12 | unary => "neg ! ~", | ||||
| 13 | mutators => '++ --', | ||||
| 14 | func => "atan2 cos sin exp abs log sqrt int", | ||||
| 15 | conversion => 'bool "" 0+ qr', | ||||
| 16 | iterators => '<>', | ||||
| 17 | filetest => "-X", | ||||
| 18 | dereferencing => '${} @{} %{} &{} *{}', | ||||
| 19 | matching => '~~', | ||||
| 20 | special => 'nomethod fallback =', | ||||
| 21 | ); | ||||
| 22 | |||||
| 23 | 1 | 300ns | my %ops_seen; | ||
| 24 | 1 | 4µs | for $category (keys %ops) { | ||
| 25 | 15 | 68µs | $ops_seen{$_}++ for (split /\s+/, $ops{$category}); | ||
| 26 | } | ||||
| 27 | |||||
| 28 | sub nil {} | ||||
| 29 | |||||
| 30 | # spent 146µs (144+1) within overload::OVERLOAD which was called 5 times, avg 29µs/call:
# 5 times (144µs+1µs) by overload::import at line 59, avg 29µs/call | ||||
| 31 | 5 | 2µs | $package = shift; | ||
| 32 | 5 | 12µs | my %arg = @_; | ||
| 33 | 5 | 2µs | my ($sub, $fb); | ||
| 34 | 5 | 25µs | $ {$package . "::OVERLOAD"}{dummy}++; # Register with magic by touching. | ||
| 35 | 5 | 10µs | $fb = ${$package . "::()"}; # preserve old fallback value RT#68196 | ||
| 36 | 5 | 12µs | *{$package . "::()"} = \&nil; # Make it findable via fetchmethod. | ||
| 37 | 5 | 11µs | for (keys %arg) { | ||
| 38 | 11 | 12µs | if ($_ eq 'fallback') { | ||
| 39 | $fb = $arg{$_}; | ||||
| 40 | } else { | ||||
| 41 | 8 | 5µs | warnings::warnif("overload arg '$_' is invalid") | ||
| 42 | unless $ops_seen{$_}; | ||||
| 43 | 8 | 4µs | $sub = $arg{$_}; | ||
| 44 | 8 | 12µs | 1 | 1µs | if (not ref $sub and $sub !~ /::/) { # spent 1µs making 1 call to overload::CORE:match |
| 45 | 1 | 3µs | $ {$package . "::(" . $_} = $sub; | ||
| 46 | 1 | 900ns | $sub = \&nil; | ||
| 47 | } | ||||
| 48 | #print STDERR "Setting '$ {'package'}::\cO$_' to \\&'$sub'.\n"; | ||||
| 49 | 8 | 20µs | *{$package . "::(" . $_} = \&{ $sub }; | ||
| 50 | } | ||||
| 51 | } | ||||
| 52 | 5 | 29µs | ${$package . "::()"} = $fb; # Make it findable too (fallback only). | ||
| 53 | } | ||||
| 54 | |||||
| 55 | # spent 198µs (53+146) within overload::import which was called 5 times, avg 40µs/call:
# once (8µs+39µs) by Exception::Class::Base::BEGIN@35 at line 35 of Exception/Class/Base.pm
# once (11µs+33µs) by Test::Deep::Cmp::BEGIN@7 at line 7 of Test/Deep/Cmp.pm
# once (12µs+27µs) by Devel::StackTrace::BEGIN@16 at line 16 of Devel/StackTrace.pm
# once (12µs+25µs) by Text::Balanced::ErrorMsg::BEGIN@1021 at line 1021 of Text/Balanced.pm
# once (9µs+21µs) by Data::DPath::Path::BEGIN@1.9 at line 1 of (eval 37)[lib/Data/DPath/Path.pm:55] | ||||
| 56 | 5 | 9µs | $package = (caller())[0]; | ||
| 57 | # *{$package . "::OVERLOAD"} = \&OVERLOAD; | ||||
| 58 | 5 | 2µs | shift; | ||
| 59 | 5 | 38µs | 5 | 146µs | $package->overload::OVERLOAD(@_); # spent 146µs making 5 calls to overload::OVERLOAD, avg 29µs/call |
| 60 | } | ||||
| 61 | |||||
| 62 | sub unimport { | ||||
| 63 | $package = (caller())[0]; | ||||
| 64 | ${$package . "::OVERLOAD"}{dummy}++; # Upgrade the table | ||||
| 65 | shift; | ||||
| 66 | for (@_) { | ||||
| 67 | if ($_ eq 'fallback') { | ||||
| 68 | undef $ {$package . "::()"}; | ||||
| 69 | } else { | ||||
| 70 | delete $ {$package . "::"}{"(" . $_}; | ||||
| 71 | } | ||||
| 72 | } | ||||
| 73 | } | ||||
| 74 | |||||
| 75 | sub Overloaded { | ||||
| 76 | my $package = shift; | ||||
| 77 | $package = ref $package if ref $package; | ||||
| 78 | mycan ($package, '()'); | ||||
| 79 | } | ||||
| 80 | |||||
| 81 | sub ov_method { | ||||
| 82 | my $globref = shift; | ||||
| 83 | return undef unless $globref; | ||||
| 84 | my $sub = \&{*$globref}; | ||||
| 85 | 2 | 263µs | 2 | 476µs | # spent 464µs (402+62) within overload::BEGIN@85 which was called:
# once (402µs+62µs) by main::BEGIN@7 at line 85 # spent 464µs making 1 call to overload::BEGIN@85
# spent 12µs making 1 call to overloading::unimport |
| 86 | return $sub if !ref $sub or $sub != \&nil; | ||||
| 87 | return shift->can($ {*$globref}); | ||||
| 88 | } | ||||
| 89 | |||||
| 90 | sub OverloadedStringify { | ||||
| 91 | my $package = shift; | ||||
| 92 | $package = ref $package if ref $package; | ||||
| 93 | #$package->can('(""') | ||||
| 94 | ov_method mycan($package, '(""'), $package | ||||
| 95 | or ov_method mycan($package, '(0+'), $package | ||||
| 96 | or ov_method mycan($package, '(bool'), $package | ||||
| 97 | or ov_method mycan($package, '(nomethod'), $package; | ||||
| 98 | } | ||||
| 99 | |||||
| 100 | sub Method { | ||||
| 101 | my $package = shift; | ||||
| 102 | if(ref $package) { | ||||
| 103 | local $@; | ||||
| 104 | local $!; | ||||
| 105 | require Scalar::Util; | ||||
| 106 | $package = Scalar::Util::blessed($package); | ||||
| 107 | return undef if !defined $package; | ||||
| 108 | } | ||||
| 109 | #my $meth = $package->can('(' . shift); | ||||
| 110 | ov_method mycan($package, '(' . shift), $package; | ||||
| 111 | #return $meth if $meth ne \&nil; | ||||
| 112 | #return $ {*{$meth}}; | ||||
| 113 | } | ||||
| 114 | |||||
| 115 | sub AddrRef { | ||||
| 116 | 2 | 158µs | 2 | 27µs | # spent 19µs (12+8) within overload::BEGIN@116 which was called:
# once (12µs+8µs) by main::BEGIN@7 at line 116 # spent 19µs making 1 call to overload::BEGIN@116
# spent 8µs making 1 call to overloading::unimport |
| 117 | "$_[0]"; | ||||
| 118 | } | ||||
| 119 | |||||
| 120 | 1 | 2µs | *StrVal = *AddrRef; | ||
| 121 | |||||
| 122 | sub mycan { # Real can would leave stubs. | ||||
| 123 | my ($package, $meth) = @_; | ||||
| 124 | |||||
| 125 | local $@; | ||||
| 126 | local $!; | ||||
| 127 | require mro; | ||||
| 128 | |||||
| 129 | my $mro = mro::get_linear_isa($package); | ||||
| 130 | foreach my $p (@$mro) { | ||||
| 131 | my $fqmeth = $p . q{::} . $meth; | ||||
| 132 | return \*{$fqmeth} if defined &{$fqmeth}; | ||||
| 133 | } | ||||
| 134 | |||||
| 135 | return undef; | ||||
| 136 | } | ||||
| 137 | |||||
| 138 | 1 | 2µs | %constants = ( | ||
| 139 | 'integer' => 0x1000, # HINT_NEW_INTEGER | ||||
| 140 | 'float' => 0x2000, # HINT_NEW_FLOAT | ||||
| 141 | 'binary' => 0x4000, # HINT_NEW_BINARY | ||||
| 142 | 'q' => 0x8000, # HINT_NEW_STRING | ||||
| 143 | 'qr' => 0x10000, # HINT_NEW_RE | ||||
| 144 | ); | ||||
| 145 | |||||
| 146 | 2 | 225µs | 2 | 203µs | # spent 107µs (11+96) within overload::BEGIN@146 which was called:
# once (11µs+96µs) by main::BEGIN@7 at line 146 # spent 107µs making 1 call to overload::BEGIN@146
# spent 96µs making 1 call to warnings::register::import |
| 147 | sub constant { | ||||
| 148 | # Arguments: what, sub | ||||
| 149 | while (@_) { | ||||
| 150 | if (@_ == 1) { | ||||
| 151 | warnings::warnif ("Odd number of arguments for overload::constant"); | ||||
| 152 | last; | ||||
| 153 | } | ||||
| 154 | elsif (!exists $constants {$_ [0]}) { | ||||
| 155 | warnings::warnif ("'$_[0]' is not an overloadable type"); | ||||
| 156 | } | ||||
| 157 | elsif (!ref $_ [1] || "$_[1]" !~ /(^|=)CODE\(0x[0-9a-f]+\)$/) { | ||||
| 158 | # Can't use C<ref $_[1] eq "CODE"> above as code references can be | ||||
| 159 | # blessed, and C<ref> would return the package the ref is blessed into. | ||||
| 160 | if (warnings::enabled) { | ||||
| 161 | $_ [1] = "undef" unless defined $_ [1]; | ||||
| 162 | warnings::warn ("'$_[1]' is not a code reference"); | ||||
| 163 | } | ||||
| 164 | } | ||||
| 165 | else { | ||||
| 166 | $^H{$_[0]} = $_[1]; | ||||
| 167 | $^H |= $constants{$_[0]}; | ||||
| 168 | } | ||||
| 169 | shift, shift; | ||||
| 170 | } | ||||
| 171 | } | ||||
| 172 | |||||
| 173 | sub remove_constant { | ||||
| 174 | # Arguments: what, sub | ||||
| 175 | while (@_) { | ||||
| 176 | delete $^H{$_[0]}; | ||||
| 177 | $^H &= ~ $constants{$_[0]}; | ||||
| 178 | shift, shift; | ||||
| 179 | } | ||||
| 180 | } | ||||
| 181 | |||||
| 182 | 1 | 12µs | 1; | ||
| 183 | |||||
| 184 | __END__ | ||||
# spent 1µs within overload::CORE:match which was called:
# once (1µs+0s) by overload::OVERLOAD at line 44 |