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ahitrov@rambler.ru |
############################################################################## |
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# Перегрузка builtin функций 'warn' и 'die'. |
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# Использование: |
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# use Contenido::Errors qw(die warn); |
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# При включенной опции STACK_TRACE = YES ($state->{stack_trace} в config.mk |
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# инсталляции дополняет выводимые сообщения трейсом по компонентам и модулям. |
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############################################################################## |
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package Contenido::Errors; |
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use strict; |
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use warnings 'all'; |
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use base qw(Exporter); |
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use vars qw(@EXPORT_OK); |
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use Contenido::Globals; |
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@EXPORT_OK = qw(&debug &die &warn); |
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my %skip_pack = map {$_=>1} qw( |
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HTML::Mason::ApacheHandler |
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HTML::Mason::Component |
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HTML::Mason::Request |
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HTML::Mason::Request::ApacheHandler |
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); |
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my %skip_file = map {$_=>1} qw( |
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/dev/null |
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); |
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sub debug { |
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return unless $DEBUG; |
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warn("DEBUG: ".join("\n", @_)); |
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} |
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sub warn { |
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my $msg = (@_ ? join("\n", @_) : 'Warning: something\'s wrong').&native(@_); |
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$msg .= &trace if $state->{stack_trace}; |
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CORE::warn $msg; |
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} |
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sub die { |
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my $msg = (@_ ? join("\n", @_) : 'Died').&native(@_); |
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$msg .= &trace if $state->{stack_trace}; |
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CORE::die $msg; |
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} |
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sub native { |
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return '' if ($_[-1]||'')=~/\n$/; |
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my @info = caller(1); |
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" at ".$info[1]." line ".$info[2].", in PID $$, ".(localtime(time))."\n"; |
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} |
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sub trace { |
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my (@stack, @info, $level); |
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while (@info = caller(++$level)) { |
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next if $skip_pack{$info[0]} || $skip_file{$info[1]}; |
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push @stack, sprintf(' line: %6d file: %s', $info[2], $info[1]); |
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} |
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@stack ? "Stack trace:\n".join("\n", @stack)."\n" : ''; |
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} |
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1; |