. "$existing->{package_defined_in} and cannot be created again in $package_defined_in");
}
- $args{constraint} = delete($args{where}) if exists $args{where};
- $args{optimized} = delete $args{optimized_as} if exists $args{optimized_as};
+ $args{constraint} = delete($args{where}) if exists $args{where};
+ $args{optimized} = delete $args{optimized_as} if exists $args{optimized_as};
my $constraint;
if($mode eq 'subtype'){
- my $parent = exists($args{as}) ? delete($args{as}) : delete($args{name});
+ my $parent = delete($args{as})
+ or confess('A subtype cannot consist solely of a name, it must have a parent');
- $parent = find_or_create_isa_type_constraint($parent);
- $constraint = $parent->create_child_type(%args);
+ $constraint = find_or_create_isa_type_constraint($parent)->create_child_type(%args);
}
else{
$constraint = Mouse::Meta::TypeConstraint->new(%args);
}
sub coerce {
- my $name = shift;
+ my $type_name = shift;
- $name =~ s/\s+//g;
- confess "Cannot find type '$name', perhaps you forgot to load it."
- unless $TYPE{$name};
+ my $type = find_type_constraint($type_name)
+ or confess("Cannot find type '$type_name', perhaps you forgot to load it.");
- unless ($COERCE{$name}) {
- $COERCE{$name} = {};
- $COERCE_KEYS{$name} = [];
- }
-
- my $package_defined_in = caller;
-
- while (my($from, $action) = splice @_, 0, 2) {
- $from =~ s/\s+//g;
-
- confess "A coercion action already exists for '$from'"
- if $COERCE{$name}->{$from};
-
- my $type = find_or_parse_type_constraint($from, $package_defined_in);
- if (!$type) {
- confess "Could not find the type constraint ($from) to coerce from"
- }
-
- warn "# REGISTER COERCE $name, from $type\n" if _DEBUG;
-
- push @{ $COERCE_KEYS{$name} }, $type;
- $COERCE{$name}->{$from} = $action;
- }
+ $type->_add_type_coercions(@_);
return;
}
# this is an original method for Mouse
sub typecast_constraints {
- my($class, $pkg, $types, $value) = @_;
+ my($class, $pkg, $type, $value) = @_;
Carp::croak("wrong arguments count") unless @_ == 4;
- local $_;
- for my $type ($types->{type_constraints} ? @{$types->{type_constraints}} : $types ) {
- for my $coerce_type (@{ $COERCE_KEYS{$type}}) {
-
- if(_DEBUG){
- warn sprintf "# COERCE: from %s to %s for %s (%s)\n",
- $coerce_type, $type, defined($value) ? "'$value'" : 'undef',
- $coerce_type->check($value) ? "try" : "skip";
- }
-
- next if !$coerce_type->check($value);
-
- # try to coerce
- $_ = $value;
- my $coerced = $COERCE{$type}->{$coerce_type}->($value); # coerce
-
- if(_DEBUG){
- warn sprintf "# COERCE: got %s, which is%s %s\n",
- defined($coerced) ? $coerced : 'undef', $types->check($coerced) ? '' : ' not', $types;
- }
-
- # check with $types, not $constraint
- return $coerced if $types->check($coerced);
- }
- }
- return $value; # returns original $value
+ return $type->coerce($value);
}
sub enum {
=head1 METHODS
-=head2 optimized_constraints -> HashRef[CODE]
+=head2 C<< list_all_builtin_type_constraints -> (Names) >>
+
+Returns the names of builtin type constraints.
+
+=head2 C<< list_all_type_constraints -> (Names) >>
-Returns the simple type constraints that Mouse understands.
+Returns the names of all the type constraints.
=head1 FUNCTIONS