package ## Hide from PAUSE
- MooseX::Meta::TypeConstraint::Dependent;
+ MooseX::Dependent::Meta::TypeConstraint::Dependent;
use Moose;
use Moose::Util::TypeConstraints ();
-use MooseX::Meta::TypeCoercion::Dependent;
-use Devel::PartialDump;
extends 'Moose::Meta::TypeConstraint';
=head1 NAME
-MooseX::Meta::TypeConstraint::Dependent - Metaclass for Dependent type constraints.
+MooseX::Dependent::Meta::TypeConstraint::Dependent - Metaclass for Dependent type constraints.
=head1 DESCRIPTION
-see L<MooseX::Types::Dependent> for examples and details of how to use dependent
+see L<MooseX::Dependent> for examples and details of how to use dependent
types. This class is a subclass of L<Moose::Meta::TypeConstraint> which
provides the gut functionality to enable dependent type constraints.
This class defines the following attributes.
-=head2 dependent_type_constraint
+=head2 parent_type_constraint
-The type constraint whose validity is being made dependent on a value that is a
-L</constraining_type_constraint>
+The type constraint whose validity is being made dependent.
=cut
-has 'dependent_type_constraint' => (
+has 'parent_type_constraint' => (
is=>'ro',
isa=>'Object',
- predicate=>'has_dependent_type_constraint',
- handles=>{
- check_dependent=>'check',
- get_message_dependent=>'get_message',
+ predicate=>'has_parent_type_constraint',
+ default=> sub {
+ Moose::Util::TypeConstraints::find_type_constraint("Any");
},
+ required=>1,
);
-=head2 constraining_type_constraint
+=head2 constraining_value_type_constraint
This is a type constraint which defines what kind of value is allowed to be the
-constraining value of the depending type.
+constraining value of the dependent type.
=cut
-has 'constraining_type_constraint' => (
+has 'constraining_value_type_constraint' => (
is=>'ro',
isa=>'Object',
- predicate=>'has_constraining_type_constraint',
- handles=>{
- check_constraining=>'check',
- get_message_constraining=>'get_message',
+ predicate=>'has_constraining_value_type_constraint',
+ default=> sub {
+ Moose::Util::TypeConstraints::find_type_constraint("Any");
},
+ required=>1,
);
-=head2 comparison_callback
-
-This is a callback which returns a boolean value. It get's passed the value
-L</constraining_type_constraint> validates as well as the check value.
-
-This callback is executed in addition to anything you put into a 'where' clause.
-However, the 'where' clause only get's the check value.
+=head2 constrainting_value
-Exercise some sanity, this should be limited to actual comparision operations,
-not as a sneaky way to mess with the constraining value.
-
-This should return a Bool, suitable for ->check (That is true for valid, false
-for fail).
+This is the actual value that constraints the L</parent_type_constraint>
=cut
-has 'comparison_callback' => (
- is=>'ro',
- isa=>'CodeRef',
- predicate=>'has_comparison_callback',
+has 'constraining_value' => (
+ reader=>'constraining_value',
+ writer=>'_set_constraining_value',
+ predicate=>'has_constraining_value',
);
=head2 constraint_generator
A subref or closure that contains the way we validate incoming values against
a set of type constraints.
-=cut
has 'constraint_generator' => (
is=>'ro',
This class defines the following methods.
-=head2 new
-
-Initialization stuff.
-
-=cut
-
-around 'new' => sub {
- my ($new, $class, @args) = @_;
- my $self = $class->$new(@args);
- $self->coercion(MooseX::Meta::TypeCoercion::Dependent->new(
- type_constraint => $self,
- ));
- return $self;
-};
-
=head2 validate
We intercept validate in order to custom process the message.
-=cut
-
override 'validate' => sub {
my ($self, @args) = @_;
my $compiled_type_constraint = $self->_compiled_type_constraint;
Given some type constraints, use them to generate validation rules for an ref
of values (to be passed at check time)
-=cut
sub generate_constraint_for {
my ($self, $callback) = @_;
sub parameterize {
my ($self, $dependent_tc, $callback, $constraining_tc) = @_;
+
+ die 'something';
+
my $class = ref $self;
my $name = $self->_generate_subtype_name($dependent_tc, $callback, $constraining_tc);
my $constraint_generator = $self->__infer_constraint_generator;
=cut
sub _generate_subtype_name {
- my ($self, $dependent_tc, $callback, $constraining_tc) = @_;
+ my ($self, $parent_tc, $constraining_tc) = @_;
return sprintf(
- "%s_depends_on_%s_via_%s",
- $dependent_tc, $constraining_tc, $callback,
+ "%s_depends_on_%s",
+ $parent_tc, $constraining_tc,
);
}
my $tc = shift @_;
my $merged_tc = [
@$tc,
- $self->comparison_callback,
- $self->constraining_type_constraint,
];
$self->constraint->($merged_tc, @_);
my ($create_child_type, $self, %opts) = @_;
return $self->$create_child_type(
%opts,
- constraint_generator => $self->__infer_constraint_generator,
+ #constraint_generator => $self->__infer_constraint_generator,
);
};
Override the base class behavior.
-=cut
-
sub equals {
my ( $self, $type_or_name ) = @_;
my $other = Moose::Util::TypeConstraints::find_type_constraint("$type_or_name");
Give you a better peek into what's causing the error.
-=cut
-
around 'get_message' => sub {
my ($get_message, $self, $value) = @_;
return $self->$get_message($value);
};
+=head2 _throw_error ($error)
+
+Given a string, delegate to the Moose exception object
+
+=cut
+
+sub _throw_error {
+ my $self = shift @_;
+ my $err = defined $_[0] ? $_[0] : 'Exception Thrown without Message';
+ require Moose; Moose->throw_error($err);
+}
+
=head1 SEE ALSO
The following modules or resources may be of interest.
projects / gitmo/MooseX-Dependent.git / blobdiff