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package Specio::Library::Structured::Tuple;
use strict;
use warnings;
our $VERSION = '0.53';
use Carp qw( confess );
use List::Util 1.33 ();
use Scalar::Util qw( blessed );
use Specio::Library::Builtins;
use Specio::TypeChecks qw( does_role );
my $arrayref = t('ArrayRef');
sub parent {$arrayref}
## no critic (Subroutines::ProhibitUnusedPrivateSubroutines)
sub _inline {
$arrayref->inline_check( $_[1] );
}
sub _parameterization_args_builder {
shift;
my $args = shift;
my $saw_slurpy;
my $saw_optional;
for my $p ( @{$args} ) {
if ($saw_slurpy) {
confess
'A Tuple cannot have any parameters after a slurpy parameter';
}
if ( $saw_optional && blessed($p) ) {
confess
'A Tuple cannot have a non-optional parameter after an optional parameter';
}
my $type;
if ( blessed($p) ) {
$type = $p;
}
else {
if ( ref $p eq 'HASH' ) {
if ( $p->{optional} ) {
$saw_optional = 1;
$type = $p->{optional};
}
if ( $p->{slurpy} ) {
$saw_slurpy = 1;
$type = $p->{slurpy};
}
}
else {
confess
'Can only pass types, optional types, and slurpy types when defining a Tuple';
}
}
if ( $saw_optional && $saw_slurpy ) {
confess
'Cannot defined a slurpy Tuple with optional slots as well';
}
does_role( $type, 'Specio::Constraint::Role::Interface' )
or confess
'All parameters passed to ->parameterize must be objects which do the Specio::Constraint::Role::Interface role';
confess
'All parameters passed to ->parameterize must be inlinable constraints'
unless $type->can_be_inlined;
}
return ( of => $args );
}
sub _name_builder {
my $self = shift;
my $p = shift;
my @names;
for my $m ( @{ $p->{of} } ) {
## no critic (Subroutines::ProtectPrivateSubs)
if ( blessed($m) ) {
push @names, $self->_name_or_anon($m);
}
elsif ( $m->{optional} ) {
push @names, $self->_name_or_anon( $m->{optional} ) . '?';
}
elsif ( $m->{slurpy} ) {
push @names, $self->_name_or_anon( $m->{slurpy} ) . '...';
}
}
return 'Tuple[ ' . ( join ', ', @names ) . ' ]';
}
sub _structured_inline_generator {
shift;
my $val = shift;
my %args = @_;
my @of = @{ $args{of} };
my $slurpy;
$slurpy = ( pop @of )->{slurpy}
if !blessed( $of[-1] ) && $of[-1]->{slurpy};
my @code = sprintf( '( %s )', $arrayref->_inline_check($val) );
unless ($slurpy) {
my $min = 0;
my $max = 0;
for my $p (@of) {
# Unblessed values are optional.
if ( blessed($p) ) {
$min++;
$max++;
}
else {
$max++;
}
}
if ($min) {
push @code,
sprintf(
'( @{ %s } >= %d && @{ %s } <= %d )',
$val, $min, $val, $max
);
}
}
for my $i ( 0 .. $#of ) {
my $p = $of[$i];
my $access = sprintf( '%s->[%d]', $val, $i );
if ( !blessed($p) ) {
my $type = $p->{optional};
push @code,
sprintf(
'( @{%s} >= %d ? ( %s ) : 1 )', $val, $i + 1,
$type->_inline_check($access)
);
}
else {
push @code,
sprintf( '( %s )', $p->_inline_check($access) );
}
}
if ($slurpy) {
my $non_slurpy = scalar @of;
my $check
= '( @{%s} > %d ? ( List::Util::all { %s } @{%s}[%d .. $#{%s}] ) : 1 )';
push @code,
sprintf(
$check,
$val, $non_slurpy, $slurpy->_inline_check('$_'),
$val, $non_slurpy, $val,
);
}
return '( ' . ( join ' && ', @code ) . ' )';
}
1;
# ABSTRACT: Guts of Tuple structured type
__END__
=pod
=encoding UTF-8
=head1 NAME
Specio::Library::Structured::Tuple - Guts of Tuple structured type
=head1 VERSION
version 0.53
=head1 DESCRIPTION
There are no user facing parts here.
=for Pod::Coverage .*
=head1 SUPPORT
Bugs may be submitted at L<https://github.com/houseabsolute/Specio/issues>.
=head1 SOURCE
The source code repository for Specio can be found at L<https://github.com/houseabsolute/Specio>.
=head1 AUTHOR
Dave Rolsky <autarch@urth.org>
=head1 COPYRIGHT AND LICENSE
This software is Copyright (c) 2012 - 2025 by Dave Rolsky.
This is free software, licensed under:
The Artistic License 2.0 (GPL Compatible)
The full text of the license can be found in the
F<LICENSE> file included with this distribution.
=cut
|
