Filename | /usr/share/perl5/overload.pm |
Statements | Executed 208 statements in 1.61ms |
Calls | P | F | Exclusive Time |
Inclusive Time |
Subroutine |
---|---|---|---|---|---|
1 | 1 | 1 | 602µs | 657µs | BEGIN@85 | overload::
5 | 1 | 1 | 187µs | 187µs | OVERLOAD | overload::
5 | 5 | 4 | 80µs | 268µs | import | overload::
55 | 1 | 1 | 70µs | 70µs | AddrRef | overload::
1 | 1 | 1 | 17µs | 29µs | BEGIN@116 | overload::
1 | 1 | 1 | 16µs | 139µs | BEGIN@146 | overload::
0 | 0 | 0 | 0s | 0s | Method | overload::
0 | 0 | 0 | 0s | 0s | Overloaded | overload::
0 | 0 | 0 | 0s | 0s | OverloadedStringify | overload::
0 | 0 | 0 | 0s | 0s | constant | overload::
0 | 0 | 0 | 0s | 0s | mycan | overload::
0 | 0 | 0 | 0s | 0s | nil | overload::
0 | 0 | 0 | 0s | 0s | ov_method | overload::
0 | 0 | 0 | 0s | 0s | remove_constant | overload::
0 | 0 | 0 | 0s | 0s | unimport | overload::
Line | State ments |
Time on line |
Calls | Time in subs |
Code |
---|---|---|---|---|---|
1 | package overload; | ||||
2 | |||||
3 | 1 | 900ns | our $VERSION = '1.18'; | ||
4 | |||||
5 | 1 | 10µs | %ops = ( | ||
6 | with_assign => "+ - * / % ** << >> x .", | ||||
7 | assign => "+= -= *= /= %= **= <<= >>= x= .=", | ||||
8 | num_comparison => "< <= > >= == !=", | ||||
9 | '3way_comparison' => "<=> cmp", | ||||
10 | str_comparison => "lt le gt ge eq ne", | ||||
11 | binary => '& &= | |= ^ ^=', | ||||
12 | unary => "neg ! ~", | ||||
13 | mutators => '++ --', | ||||
14 | func => "atan2 cos sin exp abs log sqrt int", | ||||
15 | conversion => 'bool "" 0+ qr', | ||||
16 | iterators => '<>', | ||||
17 | filetest => "-X", | ||||
18 | dereferencing => '${} @{} %{} &{} *{}', | ||||
19 | matching => '~~', | ||||
20 | special => 'nomethod fallback =', | ||||
21 | ); | ||||
22 | |||||
23 | 1 | 300ns | my %ops_seen; | ||
24 | 1 | 6µs | for $category (keys %ops) { | ||
25 | 15 | 100µs | $ops_seen{$_}++ for (split /\s+/, $ops{$category}); | ||
26 | } | ||||
27 | |||||
28 | sub nil {} | ||||
29 | |||||
30 | # spent 187µs within overload::OVERLOAD which was called 5 times, avg 37µs/call:
# 5 times (187µs+0s) by overload::import at line 59, avg 37µs/call | ||||
31 | 5 | 2µs | $package = shift; | ||
32 | 5 | 15µs | my %arg = @_; | ||
33 | 5 | 2µs | my ($sub, $fb); | ||
34 | 5 | 27µs | $ {$package . "::OVERLOAD"}{dummy}++; # Register with magic by touching. | ||
35 | 5 | 14µs | $fb = ${$package . "::()"}; # preserve old fallback value RT#68196 | ||
36 | 5 | 12µs | *{$package . "::()"} = \&nil; # Make it findable via fetchmethod. | ||
37 | 5 | 12µs | for (keys %arg) { | ||
38 | 16 | 17µs | if ($_ eq 'fallback') { | ||
39 | $fb = $arg{$_}; | ||||
40 | } else { | ||||
41 | 11 | 5µs | warnings::warnif("overload arg '$_' is invalid") | ||
42 | unless $ops_seen{$_}; | ||||
43 | 11 | 5µs | $sub = $arg{$_}; | ||
44 | 11 | 12µs | if (not ref $sub and $sub !~ /::/) { | ||
45 | 5 | 11µs | $ {$package . "::(" . $_} = $sub; | ||
46 | 5 | 4µs | $sub = \&nil; | ||
47 | } | ||||
48 | #print STDERR "Setting '$ {'package'}::\cO$_' to \\&'$sub'.\n"; | ||||
49 | 11 | 33µs | *{$package . "::(" . $_} = \&{ $sub }; | ||
50 | } | ||||
51 | } | ||||
52 | 5 | 47µs | ${$package . "::()"} = $fb; # Make it findable too (fallback only). | ||
53 | } | ||||
54 | |||||
55 | # spent 268µs (80+187) within overload::import which was called 5 times, avg 54µs/call:
# once (26µs+43µs) by Fh::BEGIN@3833 at line 3833 of CGI.pm
# once (17µs+48µs) by Error::BEGIN@20 at line 24 of Error.pm
# once (16µs+34µs) by CGI::Cookie::BEGIN@22 at line 22 of CGI/Cookie.pm
# once (11µs+31µs) by File::Temp::BEGIN@32 at line 32 of File/Temp.pm
# once (10µs+31µs) by File::Temp::Dir::BEGIN@1575 at line 1575 of File/Temp.pm | ||||
56 | 5 | 18µs | $package = (caller())[0]; | ||
57 | # *{$package . "::OVERLOAD"} = \&OVERLOAD; | ||||
58 | 5 | 2µs | shift; | ||
59 | 5 | 38µs | 5 | 187µs | $package->overload::OVERLOAD(@_); # spent 187µs making 5 calls to overload::OVERLOAD, avg 37µs/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 | 453µs | 2 | 672µs | # spent 657µs (602+55) within overload::BEGIN@85 which was called:
# once (602µs+55µs) by Error::BEGIN@20 at line 85 # spent 657µs making 1 call to overload::BEGIN@85
# spent 16µs 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 $ {*{$meth}}; | ||||
113 | } | ||||
114 | |||||
115 | # spent 70µs within overload::AddrRef which was called 55 times, avg 1µs/call:
# 55 times (70µs+0s) by Carp::format_arg at line 183 of Carp.pm, avg 1µs/call | ||||
116 | 2 | 257µs | 2 | 42µs | # spent 29µs (17+13) within overload::BEGIN@116 which was called:
# once (17µs+13µs) by Error::BEGIN@20 at line 116 # spent 29µs making 1 call to overload::BEGIN@116
# spent 12µs making 1 call to overloading::unimport |
117 | 55 | 115µs | "$_[0]"; | ||
118 | } | ||||
119 | |||||
120 | 1 | 3µs | *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 | 3µs | %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 | 365µs | 2 | 262µs | # spent 139µs (16+123) within overload::BEGIN@146 which was called:
# once (16µs+123µs) by Error::BEGIN@20 at line 146 # spent 139µs making 1 call to overload::BEGIN@146
# spent 123µs 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 | 17µs | 1; | ||
183 | |||||
184 | __END__ |