use warnings;
use Carp ();
-use Mouse::Util qw/blessed looks_like_number openhandle/;
+use Scalar::Util qw/blessed looks_like_number openhandle/;
-my $SUBTYPE = +{};
-my $COERCE = +{};
+my %SUBTYPE;
+my %COERCE;
+my %COERCE_KEYS;
#find_type_constraint register_type_constraint
sub import {
my $optimized_constraints_base;
{
no warnings 'uninitialized';
- $optimized_constraints = $optimized_constraints_base = {
+ %SUBTYPE = (
Any => sub { 1 },
Item => sub { 1 },
Bool => sub {
},
Object => sub { blessed($_) && blessed($_) ne 'Regexp' },
- };
+ );
+
+ sub optimized_constraints { \%SUBTYPE }
+ my @SUBTYPE_KEYS = keys %SUBTYPE;
+ sub list_all_builtin_type_constraints { @SUBTYPE_KEYS }
}
+
sub _subtype {
my $pkg = caller(0);
my($name, %conf) = @_;
- if (my $type = $SUBTYPE->{$name}) {
+ if (my $type = $SUBTYPE{$name}) {
Carp::croak "The type constraint '$name' has already been created, cannot be created again in $pkg";
};
my $as = $conf{as};
- my $stuff = $conf{where} || optimized_constraints()->{$as};
+ my $stuff = $conf{where} || $SUBTYPE{$as};
- $SUBTYPE->{$name} = $stuff;
- $optimized_constraints = +{ %{ $SUBTYPE }, %{ $optimized_constraints_base } };
+ $SUBTYPE{$name} = $stuff;
}
sub _coerce {
my($name, %conf) = @_;
Carp::croak "Cannot find type '$name', perhaps you forgot to load it."
- unless optimized_constraints()->{$name};
+ unless $SUBTYPE{$name};
- my $subtypes = optimized_constraints();
- $COERCE->{$name} ||= {};
+ unless ($COERCE{$name}) {
+ $COERCE{$name} = {};
+ $COERCE_KEYS{$name} = [];
+ }
while (my($type, $code) = each %conf) {
Carp::croak "A coercion action already exists for '$type'"
- if $COERCE->{$name}->{$type};
+ if $COERCE{$name}->{$type};
Carp::croak "Could not find the type constraint ($type) to coerce from"
- unless $subtypes->{$type};
+ unless $SUBTYPE{$type};
- $COERCE->{$name}->{$type} = $code;
+ push @{ $COERCE_KEYS{$name} }, $type;
+ $COERCE{$name}->{$type} = $code;
}
}
}
sub typecast_constraints {
- my($class, $pkg, $type, $value) = @_;
- return $value unless $COERCE->{$type};
-
- my $optimized_constraints = optimized_constraints();
- for my $coerce_type (keys %{ $COERCE->{$type} }) {
- local $_ = $value;
- if ($optimized_constraints->{$coerce_type}->()) {
- local $_ = $value;
- return $COERCE->{$type}->{$coerce_type}->();
+ my($class, $pkg, $type_constraint, $types, $value) = @_;
+
+ local $_;
+ for my $type (ref($types) eq 'ARRAY' ? @{ $types } : ( $types )) {
+ next unless $COERCE{$type};
+ for my $coerce_type (@{ $COERCE_KEYS{$type}}) {
+ $_ = $value;
+ next unless $SUBTYPE{$coerce_type}->();
+ $_ = $value;
+ $_ = $COERCE{$type}->{$coerce_type}->();
+ return $_ if $type_constraint->();
}
}
-
return $value;
}
-sub optimized_constraints { $optimized_constraints }
-{
- my @optimized_constraints_keys = keys %{ $optimized_constraints };
- sub list_all_builtin_type_constraints { @optimized_constraints_keys }
-}
-
1;
__END__