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            } else {
                push @args, $_[$ii];
            }
        }
        Test::More->import(import => \@test_more_exports, @args)
            if @args;
     }
    
    _strict_warnings();
    goto &Spiffy::import;
}

# Wrap Test::Builder::plan
my $plan_code = \&Test::Builder::plan;
my $Have_Plan = 0;
{
    no warnings 'redefine';
    *Test::Builder::plan = sub {
        $Have_Plan = 1;
        goto &$plan_code;
    };
}

my $DIED = 0;
$SIG{__DIE__} = sub { $DIED = 1; die @_ };

sub block_class  { $self->find_class('Block') }
sub filter_class { $self->find_class('Filter') }

sub find_class {
    my $suffix = shift;
    my $class = ref($self) . "::$suffix";
    return $class if $class->can('new');
    $class = __PACKAGE__ . "::$suffix";
    return $class if $class->can('new');
    eval "require $class";
    return $class if $class->can('new');
    die "Can't find a class for $suffix";
}

sub check_late {
    if ($self->{block_list}) {
        my $caller = (caller(1))[3];
        $caller =~ s/.*:://;
        croak "Too late to call $caller()"
    }
}

sub find_my_self() {
    my $self = ref($_[0]) eq $default_class
    ? splice(@_, 0, 1)
    : default_object();
    return $self, @_;
}

sub blocks() {
    (my ($self), @_) = find_my_self(@_);

    croak "Invalid arguments passed to 'blocks'"
      if @_ > 1;
    croak sprintf("'%s' is invalid argument to blocks()", shift(@_))
      if @_ && $_[0] !~ /^[a-zA-Z]\w*$/;

    my $blocks = $self->block_list;
    
    my $section_name = shift || '';
    my @blocks = $section_name
    ? (grep { exists $_->{$section_name} } @$blocks)
    : (@$blocks);

    return scalar(@blocks) unless wantarray;
    
    return (@blocks) if $self->_filters_delay;

    for my $block (@blocks) {
        $block->run_filters
          unless $block->is_filtered;
    }

    return (@blocks);
}

sub next_block() {
    (my ($self), @_) = find_my_self(@_);
    my $list = $self->_next_list;
    if (@$list == 0) {
        $list = [@{$self->block_list}, undef];
        $self->_next_list($list);
    }
    my $block = shift @$list;
    if (defined $block and not $block->is_filtered) {
        $block->run_filters;
    }
    return $block;
}

sub first_block() {
    (my ($self), @_) = find_my_self(@_);
    $self->_next_list([]);
    $self->next_block;
}

sub filters_delay() {
    (my ($self), @_) = find_my_self(@_);
    $self->_filters_delay(defined $_[0] ? shift : 1);
}

sub no_diag_on_only() {
    (my ($self), @_) = find_my_self(@_);
    $self->_no_diag_on_only(defined $_[0] ? shift : 1);
}

sub delimiters() {
    (my ($self), @_) = find_my_self(@_);
    $self->check_late;
    my ($block_delimiter, $data_delimiter) = @_;
    $block_delimiter ||= $self->block_delim_default;
    $data_delimiter ||= $self->data_delim_default;
    $self->block_delim($block_delimiter);
    $self->data_delim($data_delimiter);
    return $self;