1 package Mouse::TypeRegistry;
6 use Scalar::Util qw/blessed looks_like_number openhandle/;
12 #find_type_constraint register_type_constraint
16 my $caller = $args{callee} || caller(0);
19 *{"$caller\::as"} = \&_as;
20 *{"$caller\::where"} = \&_where;
21 *{"$caller\::message"} = \&_message;
22 *{"$caller\::from"} = \&_from;
23 *{"$caller\::via"} = \&_via;
24 *{"$caller\::subtype"} = \&_subtype;
25 *{"$caller\::coerce"} = \&_coerce;
26 *{"$caller\::class_type"} = \&_class_type;
27 *{"$caller\::role_type"} = \&_role_type;
46 my $optimized_constraints;
47 my $optimized_constraints_base;
49 no warnings 'uninitialized';
54 !defined($_) || $_ eq "" || "$_" eq '1' || "$_" eq '0'
56 Undef => sub { !defined($_) },
57 Defined => sub { defined($_) },
58 Value => sub { defined($_) && !ref($_) },
59 Num => sub { !ref($_) && looks_like_number($_) },
60 Int => sub { defined($_) && !ref($_) && /^-?[0-9]+$/ },
61 Str => sub { defined($_) && !ref($_) },
62 ClassName => sub { Mouse::is_class_loaded($_) },
63 Ref => sub { ref($_) },
65 ScalarRef => sub { ref($_) eq 'SCALAR' },
66 ArrayRef => sub { ref($_) eq 'ARRAY' },
67 HashRef => sub { ref($_) eq 'HASH' },
68 CodeRef => sub { ref($_) eq 'CODE' },
69 RegexpRef => sub { ref($_) eq 'Regexp' },
70 GlobRef => sub { ref($_) eq 'GLOB' },
77 && $_->isa("IO::Handle")
80 Object => sub { blessed($_) && blessed($_) ne 'Regexp' },
83 sub optimized_constraints { \%SUBTYPE }
84 my @SUBTYPE_KEYS = keys %SUBTYPE;
85 sub list_all_builtin_type_constraints { @SUBTYPE_KEYS }
90 my($name, %conf) = @_;
91 if (my $type = $SUBTYPE{$name}) {
92 Carp::croak "The type constraint '$name' has already been created, cannot be created again in $pkg";
94 my $stuff = $conf{where} || do { $SUBTYPE{delete $conf{as} || 'Any' } };
95 my $as = $conf{as} || '';
96 if ($as = $SUBTYPE{$as}) {
97 $SUBTYPE{$name} = sub { $as->($_) && $stuff->($_) };
99 $SUBTYPE{$name} = $stuff;
104 my($name, %conf) = @_;
106 Carp::croak "Cannot find type '$name', perhaps you forgot to load it."
107 unless $SUBTYPE{$name};
109 unless ($COERCE{$name}) {
111 $COERCE_KEYS{$name} = [];
113 while (my($type, $code) = each %conf) {
114 Carp::croak "A coercion action already exists for '$type'"
115 if $COERCE{$name}->{$type};
117 Carp::croak "Could not find the type constraint ($type) to coerce from"
118 unless $SUBTYPE{$type};
120 push @{ $COERCE_KEYS{$name} }, $type;
121 $COERCE{$name}->{$type} = $code;
127 my($name, $conf) = @_;
128 my $class = $conf->{class};
129 Mouse::load_class($class);
131 $name => where => sub {
132 defined $_ && ref($_) eq $class;
138 my($name, $conf) = @_;
139 my $role = $conf->{role};
141 $name => where => sub {
142 return unless defined $_ && ref($_) && $_->isa('Mouse::Object');
143 $_->meta->does_role($role);
148 sub typecast_constraints {
149 my($class, $pkg, $type_constraint, $types, $value) = @_;
152 for my $type (ref($types) eq 'ARRAY' ? @{ $types } : ( $types )) {
153 next unless $COERCE{$type};
154 for my $coerce_type (@{ $COERCE_KEYS{$type}}) {
156 next unless $SUBTYPE{$coerce_type}->();
158 $_ = $COERCE{$type}->{$coerce_type}->();
159 return $_ if $type_constraint->();
171 Mouse::TypeRegistry - simple type constraints
175 =head2 optimized_constraints -> HashRef[CODE]
177 Returns the simple type constraints that Mouse understands.