+use lib '/Users/stevan/Projects/Moose/Moose/Class-MOP/branches/Class-MOP-tranformations/lib';
+
package Moose::Util::TypeConstraints;
use strict;
use Carp 'confess';
use Scalar::Util 'blessed';
+use B 'svref_2object';
+use Sub::Exporter;
-our $VERSION = '0.08';
+our $VERSION = '0.09';
use Moose::Meta::TypeConstraint;
use Moose::Meta::TypeCoercion;
-use Sub::Exporter -setup => {
- exports => [qw/
- type subtype as where message
- coerce from via
- enum
- find_type_constraint
- /],
- groups => {
- default => [':all']
+my @exports = qw/
+ type subtype as where message optimize_as
+ coerce from via
+ enum
+ find_type_constraint
+/;
+
+Sub::Exporter::setup_exporter({
+ exports => \@exports,
+ groups => { default => [':all'] }
+});
+
+sub unimport {
+ no strict 'refs';
+ my $class = caller();
+ # loop through the exports ...
+ foreach my $name (@exports) {
+ # if we find one ...
+ if (defined &{$class . '::' . $name}) {
+ my $keyword = \&{$class . '::' . $name};
+
+ # make sure it is from Moose
+ my $pkg_name = eval { svref_2object($keyword)->GV->STASH->NAME };
+ next if $@;
+ next if $pkg_name ne 'Moose::Util::TypeConstraints';
+
+ # and if it is from Moose then undef the slot
+ delete ${$class . '::'}{$name};
+ }
}
-};
+}
{
my %TYPES;
Data::Dumper::Dumper(\%TYPES);
}
- sub _create_type_constraint ($$$;$) {
- my ($name, $parent, $check, $message) = @_;
+ sub _create_type_constraint ($$$;$$) {
+ my $name = shift;
+ my $parent = shift;
+ my $check = shift;;
+
+ my ($message, $optimized);
+ for (@_) {
+ $message = $_->{message} if exists $_->{message};
+ $optimized = $_->{optimized} if exists $_->{optimized};
+ }
+
my $pkg_defined_in = scalar(caller(1));
($TYPES{$name}->[0] eq $pkg_defined_in)
|| confess "The type constraint '$name' has already been created "
parent => $parent,
constraint => $check,
message => $message,
+ optimized => $optimized,
);
$TYPES{$name} = [ $pkg_defined_in, $constraint ] if defined $name;
return $constraint;
_create_type_constraint($name, undef, $check);
}
-sub subtype ($$;$$) {
- unshift @_ => undef if scalar @_ <= 2;
+sub subtype ($$;$$$) {
+ unshift @_ => undef if scalar @_ <= 2;
goto &_create_type_constraint;
}
sub from ($) { $_[0] }
sub where (&) { $_[0] }
sub via (&) { $_[0] }
-sub message (&) { $_[0] }
+
+sub message (&) { +{ message => $_[0] } }
+sub optimize_as (&) { +{ optimized => $_[0] } }
sub enum ($;@) {
my ($type_name, @values) = @_;
subtype 'Undef' => as 'Item' => where { !defined($_) };
subtype 'Defined' => as 'Item' => where { defined($_) };
-subtype 'Bool' => as 'Item' => where { !defined($_) || $_ eq "" || "$_" eq '1' || "$_" eq '0' };
+subtype 'Bool'
+ => as 'Item'
+ => where { !defined($_) || $_ eq "" || "$_" eq '1' || "$_" eq '0' };
-subtype 'Value' => as 'Defined' => where { !ref($_) };
-subtype 'Ref' => as 'Defined' => where { ref($_) };
-
-subtype 'Str' => as 'Value' => where { 1 };
-
-subtype 'Num' => as 'Value' => where { Scalar::Util::looks_like_number($_) };
-subtype 'Int' => as 'Num' => where { "$_" =~ /^-?[0-9]+$/ };
-
-subtype 'ScalarRef' => as 'Ref' => where { ref($_) eq 'SCALAR' };
-subtype 'ArrayRef' => as 'Ref' => where { ref($_) eq 'ARRAY' };
-subtype 'HashRef' => as 'Ref' => where { ref($_) eq 'HASH' };
-subtype 'CodeRef' => as 'Ref' => where { ref($_) eq 'CODE' };
-subtype 'RegexpRef' => as 'Ref' => where { ref($_) eq 'Regexp' };
-subtype 'GlobRef' => as 'Ref' => where { ref($_) eq 'GLOB' };
+subtype 'Value'
+ => as 'Defined'
+ => where { !ref($_) }
+ => optimize_as { defined($_[0]) && !ref($_[0]) };
+
+subtype 'Ref'
+ => as 'Defined'
+ => where { ref($_) }
+ => optimize_as { ref($_[0]) };
+
+subtype 'Str'
+ => as 'Value'
+ => where { 1 }
+ => optimize_as { defined($_[0]) && !ref($_[0]) };
+
+subtype 'Num'
+ => as 'Value'
+ => where { Scalar::Util::looks_like_number($_) }
+ => optimize_as { !ref($_[0]) && Scalar::Util::looks_like_number($_[0]) };
+
+subtype 'Int'
+ => as 'Num'
+ => where { "$_" =~ /^-?[0-9]+$/ }
+ => optimize_as { defined($_[0]) && !ref($_[0]) && $_[0] =~ /^-?[0-9]+$/ };
+
+subtype 'ScalarRef' => as 'Ref' => where { ref($_) eq 'SCALAR' } => optimize_as { ref($_[0]) eq 'SCALAR' };
+subtype 'ArrayRef' => as 'Ref' => where { ref($_) eq 'ARRAY' } => optimize_as { ref($_[0]) eq 'ARRAY' };
+subtype 'HashRef' => as 'Ref' => where { ref($_) eq 'HASH' } => optimize_as { ref($_[0]) eq 'HASH' };
+subtype 'CodeRef' => as 'Ref' => where { ref($_) eq 'CODE' } => optimize_as { ref($_[0]) eq 'CODE' };
+subtype 'RegexpRef' => as 'Ref' => where { ref($_) eq 'Regexp' } => optimize_as { ref($_[0]) eq 'Regexp' };
+subtype 'GlobRef' => as 'Ref' => where { ref($_) eq 'GLOB' } => optimize_as { ref($_[0]) eq 'GLOB' };
+
+# NOTE:
+# scalar filehandles are GLOB refs,
+# but a GLOB ref is not always a filehandle
+subtype 'FileHandle'
+ => as 'GlobRef'
+ => where { Scalar::Util::openhandle($_) }
+ => optimize_as { ref($_[0]) eq 'GLOB' && Scalar::Util::openhandle($_[0]) };
# NOTE:
# blessed(qr/.../) returns true,.. how odd
-subtype 'Object' => as 'Ref' => where { blessed($_) && blessed($_) ne 'Regexp' };
+subtype 'Object'
+ => as 'Ref'
+ => where { blessed($_) && blessed($_) ne 'Regexp' }
+ => optimize_as { blessed($_[0]) && blessed($_[0]) ne 'Regexp' };
-subtype 'Role' => as 'Object' => where { $_->can('does') };
+subtype 'Role'
+ => as 'Object'
+ => where { $_->can('does') }
+ => optimize_as { blessed($_[0]) && $_[0]->can('does') };
1;
CodeRef
RegexpRef
GlobRef
+ FileHandle
Object
Role
This is just sugar for the type constraint construction syntax.
+=item B<optimize_as>
+
=back
=head2 Type Coercion Constructors
=back
+=head2 Namespace Management
+
+=over 4
+
+=item B<unimport>
+
+This will remove all the type constraint keywords from the
+calling class namespace.
+
+=back
+
=head1 BUGS
All complex software has bugs lurking in it, and this module is no
projects / gitmo/Moose.git / blobdiff