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|
#####################################################################
#
# the Perl::Tidy::VerticalAligner::Alignment class holds information
# on a single column being aligned
#
#####################################################################
package Perl::Tidy::VerticalAligner::Alignment;
use strict;
use warnings;
{ #<<< A non-indenting brace
our $VERSION = '20220613';
BEGIN {
# Indexes for variables in $self.
# Do not combine with other BEGIN blocks (c101).
# _column_ # the current column number
# _saved_column_ # a place for temporary storage
my $i = 0;
use constant {
_column_ => $i++,
_saved_column_ => $i++,
};
}
sub new {
my ( $class, $rarg ) = @_;
my $self = bless [], $class;
$self->[_column_] = $rarg->{column};
$self->[_saved_column_] = $rarg->{saved_column};
return $self;
}
sub AUTOLOAD {
# Catch any undefined sub calls so that we are sure to get
# some diagnostic information. This sub should never be called
# except for a programming error.
our $AUTOLOAD;
return if ( $AUTOLOAD =~ /\bDESTROY$/ );
my ( $pkg, $fname, $lno ) = caller();
my $my_package = __PACKAGE__;
print STDERR <<EOM;
======================================================================
Error detected in package '$my_package', version $VERSION
Received unexpected AUTOLOAD call for sub '$AUTOLOAD'
Called from package: '$pkg'
Called from File '$fname' at line '$lno'
This error is probably due to a recent programming change
======================================================================
EOM
exit 1;
}
sub DESTROY {
# required to avoid call to AUTOLOAD in some versions of perl
}
sub get_column {
return $_[0]->[_column_];
}
sub increment_column {
$_[0]->[_column_] += $_[1];
return;
}
sub save_column {
$_[0]->[_saved_column_] = $_[0]->[_column_];
return;
}
sub restore_column {
$_[0]->[_column_] = $_[0]->[_saved_column_];
return;
}
} ## end of package VerticalAligner::Alignment
1;
|
