use Mouse::Util qw(:meta); # enables strict and warnings
use overload
- 'bool' => sub { 1 }, # always true
-
+ 'bool' => sub (){ 1 }, # always true
'""' => sub { $_[0]->name }, # stringify to tc name
-
'|' => sub { # or-combination
require Mouse::Util::TypeConstraints;
return Mouse::Util::TypeConstraints::find_or_parse_type_constraint(
my $check = delete $args{optimized};
- if($args{_compiled_type_constraint}){
- Carp::cluck("'_compiled_type_constraint' has been deprecated, use 'optimized' instead")
- if Mouse::Util::_MOUSE_VERBOSE;
-
- $check = $args{_compiled_type_constraint};
- }
-
if($check){
$args{hand_optimized_type_constraint} = $check;
$args{compiled_type_constraint} = $check;
Carp::confess("Constraint for $args{name} is not a CODE reference");
}
- $args{package_defined_in} ||= caller;
-
my $self = bless \%args, $class;
$self->compile_type_constraint() if !$self->{hand_optimized_type_constraint};
- if($self->{type_constraints}){ # Union
- my @coercions;
- foreach my $type(@{$self->{type_constraints}}){
- if($type->has_coercion){
- push @coercions, $type;
- }
- }
- if(@coercions){
- $self->{_compiled_type_coercion} = sub {
- my($thing) = @_;
- foreach my $type(@coercions){
- my $value = $type->coerce($thing);
- return $value if $self->check($value);
- }
- return $thing;
- };
- }
- }
-
+ $self->_compile_union_type_coercion() if $self->{type_constraints};
return $self;
}
sub create_child_type{
my $self = shift;
- # XXX: FIXME
return ref($self)->new(
# a child inherits its parent's attributes
%{$self},
);
}
+sub name;
+sub parent;
+sub message;
+sub has_coercion;
+
+sub type_parameter;
+sub __is_parameterized;
+
+sub _compiled_type_constraint;
+sub _compiled_type_coercion;
+
+sub compile_type_constraint;
+
sub _add_type_coercions{
my $self = shift;
- my $coercions = ($self->{_coercion_map} ||= []);
+ my $coercions = ($self->{coercion_map} ||= []);
my %has = map{ $_->[0] => undef } @{$coercions};
for(my $i = 0; $i < @_; $i++){
Carp::confess("Cannot add additional type coercions to Union types");
}
else{
+ $self->_compile_type_coercion();
+ }
+ return;
+}
+
+sub _compile_type_coercion {
+ my($self) = @_;
+
+ my @coercions = @{$self->{coercion_map}};
+
+ $self->{_compiled_type_coercion} = sub {
+ my($thing) = @_;
+ foreach my $pair (@coercions) {
+ #my ($constraint, $converter) = @$pair;
+ if ($pair->[0]->check($thing)) {
+ local $_ = $thing;
+ return $pair->[1]->($thing);
+ }
+ }
+ return $thing;
+ };
+ return;
+}
+
+sub _compile_union_type_coercion {
+ my($self) = @_;
+
+ my @coercions;
+ foreach my $type(@{$self->{type_constraints}}){
+ if($type->has_coercion){
+ push @coercions, $type;
+ }
+ }
+ if(@coercions){
$self->{_compiled_type_coercion} = sub {
- my($thing) = @_;\r
- foreach my $pair (@{$coercions}) {\r
- #my ($constraint, $converter) = @$pair;\r
- if ($pair->[0]->check($thing)) {\r
- local $_ = $thing;
- return $pair->[1]->($thing);
- }\r
- }\r
- return $thing;\r
+ my($thing) = @_;
+ foreach my $type(@coercions){
+ my $value = $type->coerce($thing);
+ return $value if $self->check($value);
+ }
+ return $thing;
};
}
return;
sub coerce {
my $self = shift;
+ my $coercion = $self->_compiled_type_coercion;
+ if(!$coercion){
+ Carp::confess("Cannot coerce without a type coercion");
+ }
+
return $_[0] if $self->_compiled_type_constraint->(@_);
- my $coercion = $self->_compiled_type_coercion;
- return $coercion ? $coercion->(@_) : $_[0];
+ return $coercion->(@_);
}
sub get_message {
|| Carp::confess("The $name constraint cannot be used, because $param doesn't subtype from a parameterizable type");
return Mouse::Meta::TypeConstraint->new(
- name => $name,
- parent => $self,
- parameter => $param,
- constraint => $generator->($param), # must be 'constraint', not 'optimized'
-
- type => 'Parameterized',
+ name => $name,
+ parent => $self,
+ type_parameter => $param,
+ constraint => $generator->($param), # must be 'constraint', not 'optimized'
);
}
+sub assert_valid {
+ my ($self, $value) = @_;
+
+ if(!$self->_compiled_type_constraint->($value)){
+ Carp::confess($self->get_message($value));
+ }
+ return 1;
+}
+
1;
__END__
=head1 VERSION
-This document describes Mouse version 0.40_08
+This document describes Mouse version 0.50_07
=head1 DESCRIPTION