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package B::Hooks::EndOfScope::PP;
# ABSTRACT: Execute code after a scope finished compilation - PP implementation
use warnings;
use strict;
our $VERSION = '0.21';
use constant _PERL_VERSION => "$]";
BEGIN {
if (_PERL_VERSION =~ /^5\.009/) {
# CBA to figure out where %^H got broken and which H::U::HH is sane enough
die "By design B::Hooks::EndOfScope does not operate in pure-perl mode on perl 5.9.X\n"
}
elsif (_PERL_VERSION < '5.010') {
require B::Hooks::EndOfScope::PP::HintHash;
*on_scope_end = \&B::Hooks::EndOfScope::PP::HintHash::on_scope_end;
}
else {
require B::Hooks::EndOfScope::PP::FieldHash;
*on_scope_end = \&B::Hooks::EndOfScope::PP::FieldHash::on_scope_end;
}
}
use Sub::Exporter::Progressive 0.001006 -setup => {
exports => ['on_scope_end'],
groups => { default => ['on_scope_end'] },
};
sub __invoke_callback {
local $@;
eval { $_[0]->(); 1 } or do {
my $err = $@;
require Carp;
Carp::cluck( (join ' ',
'A scope-end callback raised an exception, which can not be propagated when',
'B::Hooks::EndOfScope operates in pure-perl mode. Your program will CONTINUE',
'EXECUTION AS IF NOTHING HAPPENED AFTER THIS WARNING. Below is the complete',
'exception text, followed by a stack-trace of the callback execution:',
) . "\n\n$err\n\r" );
sleep 1 if -t *STDERR; # maybe a bad idea...?
};
}
1;
__END__
=pod
=encoding UTF-8
=head1 NAME
B::Hooks::EndOfScope::PP - Execute code after a scope finished compilation - PP implementation
=head1 VERSION
version 0.21
=head1 DESCRIPTION
This is the pure-perl implementation of L<B::Hooks::EndOfScope> based only on
modules available as part of the perl core. Its leaner sibling
L<B::Hooks::EndOfScope::XS> will be automatically preferred if all
dependencies are available and C<$ENV{B_HOOKS_ENDOFSCOPE_IMPLEMENTATION}> is
not set to C<'PP'>.
=head1 FUNCTIONS
=head2 on_scope_end
on_scope_end { ... };
on_scope_end $code;
Registers C<$code> to be executed after the surrounding scope has been
compiled.
This is exported by default. See L<Sub::Exporter> on how to customize it.
=head1 SUPPORT
Bugs may be submitted through L<the RT bug tracker|https://rt.cpan.org/Public/Dist/Display.html?Name=B-Hooks-EndOfScope>
(or L<bug-B-Hooks-EndOfScope@rt.cpan.org|mailto:bug-B-Hooks-EndOfScope@rt.cpan.org>).
=head1 AUTHORS
=over 4
=item *
Florian Ragwitz <rafl@debian.org>
=item *
Peter Rabbitson <ribasushi@cpan.org>
=back
=head1 COPYRIGHT AND LICENCE
This software is copyright (c) 2008 by Florian Ragwitz.
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.
=cut
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