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package Perl::Critic::Policy::BuiltinFunctions::RequireBlockMap;
use 5.010001;
use strict;
use warnings;
use Readonly;
use Perl::Critic::Utils qw{ :severities :classification :ppi };
use parent 'Perl::Critic::Policy';
our $VERSION = '1.156';
#-----------------------------------------------------------------------------
Readonly::Scalar my $DESC => q{Expression form of "map"};
Readonly::Scalar my $EXPL => [ 169 ];
#-----------------------------------------------------------------------------
sub supported_parameters { return () }
sub default_severity { return $SEVERITY_HIGH }
sub default_themes { return qw( core bugs pbp ) }
sub applies_to { return 'PPI::Token::Word' }
#-----------------------------------------------------------------------------
sub violates {
my ( $self, $elem, undef ) = @_;
return if $elem ne 'map';
return if ! is_function_call($elem);
my $arg = first_arg($elem);
return if !$arg;
return if $arg->isa('PPI::Structure::Block');
return $self->violation( $DESC, $EXPL, $elem );
}
1;
__END__
#-----------------------------------------------------------------------------
=pod
=head1 NAME
Perl::Critic::Policy::BuiltinFunctions::RequireBlockMap - Write C<map { /$pattern/ } @list> instead of C<map /$pattern/, @list>.
=head1 AFFILIATION
This Policy is part of the core L<Perl::Critic|Perl::Critic>
distribution.
=head1 DESCRIPTION
The expression forms of C<grep> and C<map> are awkward and hard to
read. Use the block forms instead.
@matches = grep /pattern/, @list; #not ok
@matches = grep { /pattern/ } @list; #ok
@mapped = map transform($_), @list; #not ok
@mapped = map { transform($_) } @list; #ok
=head1 CONFIGURATION
This Policy is not configurable except for the standard options.
=head1 SEE ALSO
L<Perl::Critic::Policy::BuiltinFunctions::ProhibitStringyEval|Perl::Critic::Policy::BuiltinFunctions::ProhibitStringyEval>
L<Perl::Critic::Policy::BuiltinFunctions::RequireBlockGrep|Perl::Critic::Policy::BuiltinFunctions::RequireBlockGrep>
=head1 AUTHOR
Jeffrey Ryan Thalhammer <jeff@imaginative-software.com>
=head1 COPYRIGHT
Copyright (c) 2005-2013 Imaginative Software Systems. All rights reserved.
This program is free software; you can redistribute it and/or modify
it under the same terms as Perl itself. The full text of this license
can be found in the LICENSE file included with this module.
=cut
# Local Variables:
# mode: cperl
# cperl-indent-level: 4
# fill-column: 78
# indent-tabs-mode: nil
# c-indentation-style: bsd
# End:
# ex: set ts=8 sts=4 sw=4 tw=78 ft=perl expandtab shiftround :
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