File Coverage

blib/lib/Pg/SQL/PrettyPrinter/Node/RangeTableSample.pm

Criterion	Covered	Total	%
statement	62	62	100.0
branch	3	4	75.0
condition			n/a
subroutine	16	16	100.0
pod	2	2	100.0
total	83	84	98.8

package Pg::SQL::PrettyPrinter::Node::RangeTableSample;

# UTF8 boilerplace, per http://stackoverflow.com/questions/6162484/why-does-modern-perl-avoid-utf-8-by-default/
use v5.26;
use strict;
use warnings;
use warnings qw( FATAL utf8 );
use utf8;
use open qw( :std :utf8 );
use Unicode::Normalize qw( NFC );
use Unicode::Collate;
use Encode qw( decode );

if ( grep /\P{ASCII}/ => @ARGV ) {
    @ARGV = map { decode( 'UTF-8', $_ ) } @ARGV;
}

# If there is __DATA__,then uncomment next line:
# binmode( DATA, ':encoding(UTF-8)' );
# UTF8 boilerplace, per http://stackoverflow.com/questions/6162484/why-does-modern-perl-avoid-utf-8-by-default/

# Useful common code
use autodie;
use Carp         qw( carp croak confess cluck );
use English      qw( -no_match_vars );
use Data::Dumper qw( Dumper );

# give a full stack dump on any untrapped exceptions
local $SIG{ __DIE__ } = sub {
    confess "Uncaught exception: @_" unless $^S;
};

# now promote run-time warnings into stackdumped exceptions
#   *unless* we're in an try block, in which
#   case just generate a clucking stackdump instead
local $SIG{ __WARN__ } = sub {
    if   ( $^S ) { cluck "Trapped warning: @_" }
    else         { confess "Deadly warning: @_" }
};

# Useful common code

use parent qw( Pg::SQL::PrettyPrinter::Node );

sub new {
    my $class = shift;
    my $self  = $class->SUPER::new( @_ );
    bless $self, $class;

    croak( 'More than one method in tablesample: ' . Dumper( $self ) ) if 1 < scalar @{ $self->{ 'method' } };
    $self->objectify( qw( relation args method repeatable ) );

    return $self;
}

sub as_text {
    my $self     = shift;
    my @elements = ();
    push @elements, $self->{ 'relation' }->as_text;
    push @elements, 'TABLESAMPLE';
    push @elements, $self->{ 'method' }->[ 0 ]->as_ident;

    # Uppercase one of two pg-provided sampling methods
    $elements[ -1 ] =~ s/\A(system|bernoulli)\z/\U$1/;

    push @elements, '(';
    push @elements, map { $_->as_text } @{ $self->{ 'args' } };
    push @elements, ')';
    if ( exists $self->{ 'repeatable' } ) {
        push @elements, 'REPEATABLE', '(', $self->{ 'repeatable' }->as_text, ')';
    }
    return join( ' ', @elements );
}

1;

# vim: set ft=perl: