1 |
package Frey::Web; |
2 |
use Moose::Role; |
3 |
|
4 |
with 'Frey::Session'; |
5 |
|
6 |
use Frey::Types; |
7 |
|
8 |
#use Continuity::Widget::DomNode; |
9 |
use Data::Dump qw/dump/; |
10 |
use Carp qw/confess cluck carp/; |
11 |
use File::Slurp; |
12 |
|
13 |
use Frey::Bookmarklet; |
14 |
use Frey::ClassBrowser; |
15 |
use Frey::INC; |
16 |
|
17 |
use Frey::SVK; |
18 |
|
19 |
use Text::Tabs; # expand, unexpand |
20 |
|
21 |
our @head; |
22 |
sub head { @head } |
23 |
|
24 |
has 'request_url' => ( |
25 |
is => 'rw', |
26 |
isa => 'Uri', coerce => 1, |
27 |
required => 1, |
28 |
default => sub { |
29 |
carp "undefined request_url"; |
30 |
'/'; |
31 |
}, |
32 |
); |
33 |
|
34 |
has 'title' => ( |
35 |
is => 'rw', |
36 |
isa => 'Str', |
37 |
lazy => 1, |
38 |
default => sub { |
39 |
my ($self) = @_; |
40 |
ref($self); |
41 |
}, |
42 |
); |
43 |
|
44 |
has 'content_type' => ( |
45 |
is => 'rw', |
46 |
isa => 'Str', |
47 |
default => 'text/html', |
48 |
documentation => 'Content-type header', |
49 |
); |
50 |
|
51 |
has 'dump_max_bytes' => ( |
52 |
is => 'rw', |
53 |
isa => 'Int', |
54 |
default => 4096, |
55 |
documentation => 'maximum dump size sent to browser before truncation', |
56 |
); |
57 |
|
58 |
has 'inline_smaller_than' => ( |
59 |
is => 'rw', |
60 |
isa => 'Int', |
61 |
default => 10240, |
62 |
documentation => 'inline JavaScript and CSS to reduce round-trips', |
63 |
); |
64 |
|
65 |
has 'html_dump_width' => ( |
66 |
documentation => 'crop longer lines in dumps', |
67 |
is => 'rw', |
68 |
isa => 'Int', |
69 |
# required => 1, # FIXME we can't have required fields with defaults because Frey::Action isn't smart enough and asks for them |
70 |
default => 250, |
71 |
); |
72 |
|
73 |
my %escape = ('<'=>'<', '>'=>'>', '&'=>'&', '"'=>'"'); |
74 |
my $escape_re = join '|' => keys %escape; |
75 |
|
76 |
sub html_escape { |
77 |
my ( $self, $html ) = @_; |
78 |
$html =~ s/($escape_re)/$escape{$1}/g; |
79 |
return $html; |
80 |
} |
81 |
|
82 |
sub html_dump { |
83 |
my ( $self, $dump ) = @_; |
84 |
$dump = dump( $dump ) if ref($dump); |
85 |
my $width = $self->html_dump_width; |
86 |
$dump =~ s{(\n[^\n]{$width})([^\n]+?)([^\n]{5})}{\n$1...$3}gs; |
87 |
$dump = $self->html_escape( $dump ); |
88 |
$dump =~ s{\Q...\E}{…}gs; |
89 |
# $dump =~ $self->html_links( $dump ); # FIXME include this |
90 |
return "<code>$dump</code>"; |
91 |
} |
92 |
|
93 |
sub popup { my $self = shift; $self->popup_dropdown('popup', @_); } |
94 |
sub dropdown { my $self = shift; $self->popup_dropdown('dropdown', @_); } |
95 |
|
96 |
our $re_html = qr{<(?:!--.+?--|(\w+).+?/\1|[^>]+/)>}s; # relaxed html check for one semi-valid tag |
97 |
|
98 |
sub popup_dropdown { |
99 |
my ( $self, $type, $name, $content, $full ) = @_; |
100 |
|
101 |
$content = $self->html_dump($content) if ref $content; |
102 |
|
103 |
$content = qq|<span>$content</span>| unless $content =~ m{^\s*<(span|a|code).+?/\1>\s*}; |
104 |
|
105 |
$content =~ s{<span>(<code>[^<]+</code>)</span>}{$1} && $self->TODO("code wrapped in span"); |
106 |
|
107 |
warn "## $type [$name] = ", length( $content ), " bytes"; # if $self->debug; # FIXME |
108 |
|
109 |
if ( $name =~ m{::} && $name !~ $re_html ) { |
110 |
return qq|<a class="frey-$type" target="$name" href="/$name">$name $content</a>\n|; |
111 |
} elsif ( $name =~ s{^\s*(<a)\s+}{$1 class="frey-$type"} ) { |
112 |
return qq|$name $content\n|; |
113 |
} else { |
114 |
return qq|<span class="frey-$type">$name $content</span>\n|; |
115 |
} |
116 |
} |
117 |
|
118 |
sub _inline_path { |
119 |
my ( $self, $path ) = @_; |
120 |
-s $path < $self->inline_smaller_than; |
121 |
} |
122 |
|
123 |
sub _head_html { |
124 |
my $self = shift; |
125 |
my $out = ''; |
126 |
foreach my $path ( @head ) { |
127 |
$path =~ s!^/!!; |
128 |
if ( $path =~ m/\.js$/ ) { |
129 |
$out .= $self->_inline_path( $path ) ? |
130 |
qq|<script type="text/javascript">\n/* inline $path */\n\n| . read_file($path) . qq|\n</script>| : |
131 |
qq|<script type="text/javascript" src="/$path"></script>|; |
132 |
} elsif ( $path =~ m/\.css$/ ) { |
133 |
$out .= $self->_inline_path( $path ) ? |
134 |
qq|<style type="text/css">\n/* inline $path */\n\n| . read_file( $path ) . qq|\n</style>| : |
135 |
qq|<link type="text/css" rel="stylesheet" href="/$path" media="screen">|; |
136 |
} elsif ( $path =~ m{<.+>}s ) { |
137 |
$out .= $path; |
138 |
} else { |
139 |
confess "don't know how to render $path"; |
140 |
} |
141 |
$out .= "\n"; |
142 |
} |
143 |
return $out; |
144 |
} |
145 |
|
146 |
=head2 add_head |
147 |
|
148 |
$o->add_head( 'path/to/external.js' ); |
149 |
|
150 |
my $size = $o->add_head( 'path/to/external.css' ); |
151 |
|
152 |
$o->add_head( '<!-- html content -->' ); |
153 |
|
154 |
=cut |
155 |
|
156 |
sub add_head { |
157 |
my ( $self, $path ) = @_; |
158 |
return if ! defined $path || $path eq ''; |
159 |
$path =~ s!^/!!; |
160 |
|
161 |
if ( $path =~ $re_html ) { |
162 |
push @head, $path; |
163 |
} elsif ( -e $path ) { |
164 |
if ( $path =~ m/\.(?:js|css)$/ ) { |
165 |
push @head, $path; |
166 |
} else { |
167 |
confess "can't add_head( $path ) it's not js or css"; |
168 |
} |
169 |
return -s $path; |
170 |
} else { |
171 |
confess "can't find $path: $!"; |
172 |
} |
173 |
|
174 |
} |
175 |
|
176 |
sub add_css { |
177 |
my ($self,$css) = @_; |
178 |
my ( $package, $path, $line ) = caller; |
179 |
$self->add_head( qq| |
180 |
<style type="text/css"> |
181 |
/* via $package at $path line $line */ |
182 |
$css |
183 |
</style> |
184 |
| ); |
185 |
} |
186 |
|
187 |
our $reload_counter = 0; |
188 |
|
189 |
|
190 |
=head2 page |
191 |
|
192 |
$self->page( |
193 |
title => 'page title', |
194 |
head => '<!-- optional head markup -->', |
195 |
body => '<b>Page Body</b>', |
196 |
); |
197 |
|
198 |
=cut |
199 |
|
200 |
our @status; |
201 |
sub status { @status }; |
202 |
|
203 |
our $icon_html; |
204 |
|
205 |
sub page { |
206 |
my $self = shift; |
207 |
my $a = {@_}; |
208 |
|
209 |
warn "## page ",dump($a); |
210 |
|
211 |
$reload_counter++; |
212 |
|
213 |
my $status_line = ''; |
214 |
|
215 |
foreach my $part ( @status ) { |
216 |
foreach my $name ( keys %$part ) { |
217 |
$status_line .= $self->popup( $name, $part->{$name} ); |
218 |
} |
219 |
} |
220 |
|
221 |
my $url = $self->request_url; |
222 |
$url =~ s{\?reload=\d+}{}; |
223 |
|
224 |
my $body = $a->{body}; |
225 |
if ( ! $body ) { |
226 |
my $run = $a->{run} || 'as_markup'; |
227 |
warn "# no body, invoke $self->$run on ", ref($self); |
228 |
eval { |
229 |
$body = $self->$run; |
230 |
}; |
231 |
$body = $self->error( $@, '' ) if $@; |
232 |
} |
233 |
if ( $self->content_type !~ m{html} ) { |
234 |
warn "# return only $self body ", $self->content_type; |
235 |
return $body |
236 |
} elsif ( ! defined $body ) { |
237 |
warn "# no body"; |
238 |
$body = '<!-- no body -->'; |
239 |
} |
240 |
|
241 |
$status_line .= $self->warnings_html; |
242 |
|
243 |
my ($exit,$description) = ('exit','stop server'); |
244 |
($exit,$description) = ('restart','restart server') |
245 |
if $ENV{FREY_RESTART}; # tune labels on exit link |
246 |
|
247 |
my $right = |
248 |
qq| |
249 |
<span class="right"> |
250 |
<a title="reload $url" href="/reload$url">reload</a> |
251 |
<a title="$description" href="/exit$url" target="exit">$exit</a> |
252 |
</span> |
253 |
|; |
254 |
|
255 |
my $svk = Frey::SVK->new; |
256 |
my $info = $svk->info; |
257 |
my $revision = $svk->info->{Revision} || ''; |
258 |
$revision = $1 if $info->{'Mirrored From'} =~ m{Rev\.\s+(\d+)}; |
259 |
|
260 |
$self->add_icon unless $icon_html; |
261 |
|
262 |
my $html = join("\n", |
263 |
qq|<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN"><html><head>|, |
264 |
$self->_head_html, |
265 |
'<title>' . ( $self->title || $a->{title} || ref($self) ) . '</title>', |
266 |
'<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">', |
267 |
( $icon_html || '<!-- no icon -->' ), |
268 |
( $a->{head} || '' ), |
269 |
qq| |
270 |
</head><body> |
271 |
$body |
272 |
<div class="frey-status-line"> |
273 |
<a href="/">Frey</a> $Frey::VERSION $revision |
274 |
$status_line |
275 |
$right |
276 |
</div> |
277 |
</body></html> |
278 |
|, |
279 |
); |
280 |
|
281 |
warn "## >>> page ",length($html), " bytes\n" if $self->debug; |
282 |
|
283 |
return $html; |
284 |
} |
285 |
|
286 |
=head2 editor |
287 |
|
288 |
Create HTML editor link with optional line and title |
289 |
|
290 |
my $html = $self->editor( $class, $line, $title ); |
291 |
|
292 |
=cut |
293 |
|
294 |
sub editor { |
295 |
my ( $self, $class, $line, $title ) = @_; |
296 |
confess "need class" unless $class; |
297 |
if ( ! defined $title ) { |
298 |
$title = "edit $class"; |
299 |
$title .= " line $line" if $line; |
300 |
} |
301 |
$line ||= 1; |
302 |
qq|<a target="editor" href="/editor+$class+$line"| . |
303 |
( $title ? qq| title="$title"| : '' ) . |
304 |
qq|>$class</a>|; |
305 |
} |
306 |
|
307 |
=head2 html_links |
308 |
|
309 |
Create HTML links to editor for perl error message |
310 |
|
311 |
my $html = $self->html_links( $error ) |
312 |
|
313 |
=cut |
314 |
|
315 |
sub html_links { |
316 |
my ( $self, $error ) = @_; |
317 |
|
318 |
$error = $self->strip_full_path( $error ); |
319 |
|
320 |
# $error =~ s[(bless\({\s+.+?\s+},\s+)("[^"]+")(\) at)][<span class="frey-dropdown">$1<code>$2</code>$3</span>]gs; # FIXME insert bless hiding back |
321 |
|
322 |
# perl's backtrace |
323 |
$error =~ s{at\s+(\S+)\s+line\s+(\d+)} |
324 |
{at <a target="editor" href="/editor+$1+$2" title="vi $1 +$2">$1</a> line $2}gsm; |
325 |
|
326 |
$error =~ s{(via (?:package)\s+"?)([\w:]+)("?)} |
327 |
{$1<a target="$2" href="/$2" title="introspect $2">$2</a>$3}gsm |
328 |
|| # or anything that looks like "Class::Name" |
329 |
$error =~ s{"(\w+(?:::\w+)+)"} |
330 |
{"<a target="$1" href="/$1" title="introspect $1">$1</a>"}gsm; |
331 |
|
332 |
# method error messages |
333 |
# FIXME replace with link to Frey::Introspect data |
334 |
$error =~ s{(method ")(\w+)(" via)} |
335 |
{$1<a target="$2" href="/Frey::Shell::Grep/as_markup?pattern=$2" title="grep $2">$2</a>$3}gsm; |
336 |
|
337 |
# link paths to editor |
338 |
$error =~ s{((?:lib|t)/[\S]+)\s+(\d+\s+bytes)} |
339 |
{<a target="editor" href="/editor+$1+1" title="vi $1 [$2]">$1</a>}gsm; |
340 |
|
341 |
$error =~ s{(class ")([\w:]+)(")} |
342 |
{$1<a target="$2" href="/$2" title="introspect $2">$2</a>$3}gsm; |
343 |
|
344 |
return $error; |
345 |
} |
346 |
|
347 |
=head2 error |
348 |
|
349 |
This method will return error to browser and backtrace unless |
350 |
error message ends with LF C<\n> just like L<warn> |
351 |
|
352 |
=cut |
353 |
|
354 |
sub error { |
355 |
my $self = shift; |
356 |
my $error = join(" ", @_); |
357 |
|
358 |
my $fatal = ''; |
359 |
|
360 |
if ( $error !~ m{\n$} ) { |
361 |
if ( my @backtrace = $self->backtrace ) { |
362 |
$error .= "\n\t" . join( "\n\t", @backtrace ); |
363 |
$fatal = qq| frey-fatal|; |
364 |
} |
365 |
} |
366 |
|
367 |
warn "ERROR: $error\n"; |
368 |
return |
369 |
qq|<pre class="frey-error$fatal">| |
370 |
. $self->html_links( $error ) . |
371 |
qq|</pre>| |
372 |
; |
373 |
} |
374 |
|
375 |
=head1 Status line |
376 |
|
377 |
=head2 add_status |
378 |
|
379 |
$self->add_status( { name => { some => 'data' } } ); |
380 |
|
381 |
$self->add_status( "append to last status popup" ); |
382 |
|
383 |
=cut |
384 |
|
385 |
sub add_status { |
386 |
my ( $self, $data ) = @_; |
387 |
push @status, { 'X' => [ $self->backtrace ] }; |
388 |
if ( ref($data) ) { |
389 |
push @status, $data; |
390 |
} else { |
391 |
if ( defined $status[ $#status ] ) { |
392 |
$status[ $#status ]->{ '+' } = $data; |
393 |
} else { |
394 |
push @status, { '+' => $data }; |
395 |
} |
396 |
} |
397 |
} |
398 |
|
399 |
=head2 clean_status |
400 |
|
401 |
Called at beginning of each request |
402 |
|
403 |
$self->clean_status; |
404 |
|
405 |
=cut |
406 |
|
407 |
sub clean_status { |
408 |
my ($self) = shift; |
409 |
@head = ( 'static/frey.css' ); |
410 |
@status = ( |
411 |
{ 'ClassBrowser' => Frey::ClassBrowser->new( usage_on_top => 0 )->as_markup }, |
412 |
{ 'Bookmarklets' => Frey::Bookmarklet->new->as_markup }, |
413 |
{ 'INC' => Frey::INC->new->as_markup }, |
414 |
); |
415 |
$icon_html = ''; |
416 |
} |
417 |
|
418 |
=head2 status_parts |
419 |
|
420 |
Dump all status line parts |
421 |
|
422 |
$self->status_parts |
423 |
|
424 |
=cut |
425 |
|
426 |
sub status_parts { |
427 |
warn "## status parts ", dump( map { keys %$_ } @status ); |
428 |
} |
429 |
|
430 |
=for debug |
431 |
|
432 |
sub DEMOLISH { |
433 |
my ( $self ) = @_; |
434 |
warn "## $self DEMOLISH status ", $#status + 1, " elements ", dump( map { keys %$_ } @status ) if @status; |
435 |
} |
436 |
|
437 |
=cut |
438 |
|
439 |
=head2 add_icon |
440 |
|
441 |
Frey::Foo->add_icon; # /static/icons/Frey/Foo.png |
442 |
Frey::Foo->add_icon('warning'); # /static/icons/Frey/Foo/warning.png |
443 |
|
444 |
=cut |
445 |
|
446 |
sub icon_path { |
447 |
my ($self,$class,$variant) = @_; |
448 |
my $icon = $class; |
449 |
$icon =~ s{::}{/}g; |
450 |
$icon .= "/$variant" if $variant; |
451 |
my $path = 'static/icons/' . $icon . '.png'; |
452 |
if ( -e $path ) { |
453 |
warn "# $class from $self icon_path $path" if $self->debug; |
454 |
return $path; |
455 |
} else { |
456 |
$self->TODO( "add $path icon for $class" ); |
457 |
return undef; |
458 |
} |
459 |
} |
460 |
|
461 |
sub add_icon { |
462 |
my ($self,$variant) = @_; |
463 |
|
464 |
my $class = ref($self); |
465 |
$class = $self->class if $self->can('class'); |
466 |
my $icon_path = $self->icon_path( $class, $variant ) || return; |
467 |
|
468 |
$icon_html .= qq|<link rel="icon" type="image/png" href="/$icon_path">|; |
469 |
warn "# using icon $icon_path"; |
470 |
|
471 |
=for later |
472 |
|
473 |
# FIXME http://en.wikipedia.org/wiki/Favicon suggest just rel="icon" but that doesn't seem to work! |
474 |
my $ico_path = $icon_path; |
475 |
$ico_path =~ s{png$}{ico}; |
476 |
if ( ! -e $ico_path ) { |
477 |
system "convert $icon_path $ico_path"; |
478 |
warn "# convert $icon_path $ico_path : $@"; |
479 |
} |
480 |
$icon_html .= qq|<link rel="shortcut icon" type="image/x-icon" href="/$ico_path">| if -e $ico_path; |
481 |
|
482 |
=cut |
483 |
|
484 |
} |
485 |
|
486 |
my $warn_colors = { |
487 |
'#' => '#444', |
488 |
'##' => '#888', |
489 |
}; |
490 |
|
491 |
my $multiline_markers = { |
492 |
'(' => ')', |
493 |
'{' => '}', |
494 |
'[' => ']', |
495 |
'"' => '"', |
496 |
}; |
497 |
|
498 |
=for later |
499 |
|
500 |
my $multiline_re = '[\\' . join('\\', keys %$multiline_markers ) . ']'; |
501 |
warn "## multiline markers ", dump( $multiline_markers ), " -> $multiline_re"; |
502 |
|
503 |
=cut |
504 |
|
505 |
sub log_path { |
506 |
$Frey::Bootstrap::log_path || die "no log_path?"; |
507 |
} |
508 |
|
509 |
our $pwd = `pwd`; |
510 |
chomp $pwd; |
511 |
|
512 |
sub strip_full_path { |
513 |
my ($self, $msg) = @_; |
514 |
# Mojo seems to expand warn messages to full path which is annoying |
515 |
$msg =~ s{/[^/]+/\.\./}{/}gs; |
516 |
$msg =~ s{$pwd/*}{}gs; |
517 |
return $msg; |
518 |
} |
519 |
|
520 |
our $last_log_pos = 0; |
521 |
our $last_log_line = 0; |
522 |
|
523 |
sub warnings_html { |
524 |
my ($self,$level) = shift; |
525 |
$level ||= $self->debug, |
526 |
my $path = $self->log_path; |
527 |
|
528 |
my $max = 30; |
529 |
my $pos = 0; |
530 |
my @warnings = ( '' x $max ); # XXX circualar buffer for 50 lines |
531 |
my $line = $last_log_line; |
532 |
my $multiline_end; |
533 |
|
534 |
# XXX do we really want to do this every time? |
535 |
my $css = qq|/* short css classes for levels */\n|; |
536 |
my $level_to_class; |
537 |
foreach ( keys %$warn_colors ) { |
538 |
my $l = length($_); |
539 |
my $class = 'l' . $l; |
540 |
$css .= qq|.$class { color: $warn_colors->{$_} }\n|; |
541 |
$level_to_class->{ $_ } = $class; |
542 |
} |
543 |
$self->add_css( $css ); |
544 |
|
545 |
open(my $log, '<', $path) || die "can't open $path: $!"; |
546 |
seek($log, $last_log_pos, 0) || warn "can't seek: $!"; |
547 |
while(<$log>) { |
548 |
chomp; |
549 |
$line++; |
550 |
|
551 |
next if m{^\s+(Mojo|Class::MOP|Moose)::}; |
552 |
|
553 |
my $style = ''; |
554 |
|
555 |
=for filter |
556 |
|
557 |
if ( $multiline_end ) { |
558 |
if ( m{^\Q$multiline_end\E} || m{^\s.+\Q$multiline_end\E;$} ) { |
559 |
# warn "## $line end of $multiline_end in '$_'\n"; |
560 |
undef $multiline_end; |
561 |
} else { |
562 |
# warn "## $line skipped\n"; |
563 |
} |
564 |
} elsif ( m{^(#*)\s+} ) { |
565 |
my $l = $1 ? length($1) : 0; |
566 |
if ( $l > $level ) { |
567 |
undef $multiline_end; |
568 |
$multiline_end = $multiline_markers->{$1} if m{($multiline_re)$}; |
569 |
# warn "## $line start $1 .. $multiline_end level $l > $level for '$_'\n" if $multiline_end; |
570 |
next; |
571 |
} |
572 |
|
573 |
=cut |
574 |
if ( m{^(#*)} ) { |
575 |
|
576 |
my $level = $1; |
577 |
my $msg = $self->strip_full_path( $_ ); |
578 |
|
579 |
my $spacer = ' '; |
580 |
my $real_msg = expand( $msg ); |
581 |
if ( length($real_msg) > $self->html_dump_width ) { |
582 |
|
583 |
$real_msg = substr( $msg, 0, $self->html_dump_width ); |
584 |
$msg = unexpand( $real_msg ); |
585 |
$spacer = '…' |
586 |
} |
587 |
|
588 |
$msg = $self->html_escape( $msg ); |
589 |
|
590 |
if ( my $class = $level_to_class->{ $level } ) { |
591 |
$msg = qq|<span class="$class">$msg</span>|; |
592 |
} |
593 |
|
594 |
#$msg .= $spacer . qq|<a target="editor" href="/editor+$path+$line" style="float: right;">$line</a>\n|; |
595 |
$msg = qq|<a target="editor" href="/editor+$path+$line" style="float: right;">$line</a>$msg| |
596 |
. ( $spacer ? $spacer : '' ) |
597 |
. "\n"; # XXX <pre> needs this |
598 |
|
599 |
$warnings[ $pos++ % $max ] = $msg; |
600 |
} |
601 |
} |
602 |
$last_log_pos = tell($log); |
603 |
$last_log_line = $line; |
604 |
warn "log has $line lines tell position $last_log_pos"; |
605 |
close($log) || die "can't close $path: $!"; |
606 |
|
607 |
my $size = -s $path; |
608 |
|
609 |
my $warnings = join("", |
610 |
map { $warnings[ ( $pos + $_ ) % $max ] || '' } 0 .. ( $max - 1 ) |
611 |
); |
612 |
|
613 |
my $s = length($warnings); |
614 |
|
615 |
return |
616 |
# need to wrap editor link into span so we can have links in warnings |
617 |
qq|<span class="frey-popup"><a target="editor" href="/editor+$path+$line" title="$path \| $size -> $s bytes \| $line -> $pos lines \| level $level">warn</a><code>| |
618 |
. $self->html_links( $warnings ) |
619 |
. qq|</code></span>| |
620 |
; |
621 |
} |
622 |
|
623 |
|
624 |
=head2 backtrace |
625 |
|
626 |
Show backtrace with links to editor |
627 |
|
628 |
my @backtrace = $self->backtrace; |
629 |
|
630 |
=cut |
631 |
|
632 |
sub backtrace { |
633 |
my ($self) = @_; |
634 |
|
635 |
my @backtrace; |
636 |
foreach ( 0 .. 5 ) { |
637 |
my ( |
638 |
$package,$path,$line |
639 |
# subroutine hasargs |
640 |
# wantarray evaltext is_require |
641 |
# hints bitmask hinthash |
642 |
) = caller($_) or last; |
643 |
|
644 |
push @backtrace, |
645 |
qq|via "$package" at $path line $line|; |
646 |
} |
647 |
#warn "# backtrace: ", dump( @backtrace ) if @backtrace; |
648 |
return @backtrace; |
649 |
} |
650 |
|
651 |
1; |