2 package Mouse::TypeRegistry;
7 use Mouse::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";
95 my $stuff = $conf{where} || optimized_constraints()->{$as};
97 $SUBTYPE->{$name} = $stuff;
101 my($name, %conf) = @_;
103 Carp::croak "Cannot find type '$name', perhaps you forgot to load it."
104 unless optimized_constraints()->{$name};
106 my $subtypes = optimized_constraints();
107 $COERCE->{$name} ||= {};
108 while (my($type, $code) = each %conf) {
109 Carp::croak "A coercion action already exists for '$type'"
110 if $COERCE->{$name}->{$type};
112 Carp::croak "Could not find the type constraint ($type) to coerce from"
113 unless $subtypes->{$type};
115 $COERCE->{$name}->{$type} = $code;
121 my($name, $conf) = @_;
122 my $class = $conf->{class};
124 $name => where => sub {
125 defined $_ && ref($_) eq $class;
131 my($name, $conf) = @_;
132 my $role = $conf->{role};
134 $name => where => sub {
135 return unless defined $_ && ref($_) && $_->isa('Mouse::Object');
136 $_->meta->does_role($role);
141 sub typecast_constraints {
142 my($class, $pkg, $type_constraint, $types, $value) = @_;
143 my $optimized_constraints = optimized_constraints();
145 for my $type (ref($types) eq 'ARRAY' ? @{ $types } : ( $types )) {
146 next unless $COERCE->{$type};
148 for my $coerce_type (keys %{ $COERCE->{$type} }) {
150 if ($optimized_constraints->{$coerce_type}->()) {
152 local $_ = $COERCE->{$type}->{$coerce_type}->();
153 return $_ if $type_constraint->();
166 Mouse::TypeRegistry - simple type constraints
170 =head2 optimized_constraints -> HashRef[CODE]
172 Returns the simple type constraints that Mouse understands.