package ## Hide from PAUSE
MooseX::Meta::TypeConstraint::Structured;
+# ABSTRACT: MooseX::Meta::TypeConstraint::Structured - Structured type constraints.
use Moose;
use Devel::PartialDump;
use MooseX::Meta::TypeCoercion::Structured;
extends 'Moose::Meta::TypeConstraint';
-=head1 NAME
-
-MooseX::Meta::TypeConstraint::Structured - Structured type constraints.
=head1 DESCRIPTION
an Int and then a Str" and that this could be done so with a declaration like:
Tuple[Int,Int,Str]; ## Example syntax
-
+
So a structure is a list of Type constraints (the "Int,Int,Str" in the above
example) which are intended to function together.
-=head1 ATTRIBUTES
-
-This class defines the following attributes.
-
-=head2 type_constraints
+=attr type_constraints
A list of L<Moose::Meta::TypeConstraint> objects.
predicate=>'has_type_constraints',
);
-=head2 constraint_generator
+=attr constraint_generator
A subref or closure that contains the way we validate incoming values against
a set of type constraints.
builder => '_build_coercion',
);
-=head1 METHODS
-
-This class defines the following methods.
-
-=head2 new
-
-Initialization stuff.
-
-=cut
-
sub _build_coercion {
my ($self) = @_;
return MooseX::Meta::TypeCoercion::Structured->new(
);
}
-=head2 validate
+=method validate
Messing with validate so that we can support niced error messages.
+
=cut
override 'validate' => sub {
}
};
-=head2 generate_constraint_for ($type_constraints)
+=method generate_constraint_for ($type_constraints)
Given some type constraints, use them to generate validation rules for an ref
of values (to be passed at check time)
};
}
-=head2 parameterize (@type_constraints)
+=method parameterize (@type_constraints)
Given a ref of type constraints, create a structured type.
=cut
sub parameterize {
-
my ($self, @type_constraints) = @_;
my $class = ref $self;
my $name = $self->name .'['. join(',', map {"$_"} @type_constraints) .']';
);
}
-=head2 __infer_constraint_generator
+=method __infer_constraint_generator
This returns a CODEREF which generates a suitable constraint generator. Not
user servicable, you'll never call this directly.
## I'm not sure about this stuff but everything seems to work
my $tc = shift @_;
my $merged_tc = [@$tc, @{$self->parent->type_constraints}];
- $self->constraint->($merged_tc, @_);
+ $self->constraint->($merged_tc, @_);
};
- }
+ }
}
-=head2 compile_type_constraint
+=method compile_type_constraint
hook into compile_type_constraint so we can set the correct validation rules.
around 'compile_type_constraint' => sub {
my ($compile_type_constraint, $self, @args) = @_;
-
+
if($self->has_type_constraints) {
my $type_constraints = $self->type_constraints;
my $constraint = $self->generate_constraint_for($type_constraints);
- $self->_set_constraint($constraint);
+ $self->_set_constraint($constraint);
}
return $self->$compile_type_constraint(@args);
};
-=head2 create_child_type
+=method create_child_type
modifier to make sure we get the constraint_generator
);
};
-=head2 is_a_type_of
+=method is_a_type_of
-=head2 is_subtype_of
+=method is_subtype_of
-=head2 equals
+=method equals
Override the base class behavior.
my $other = Moose::Util::TypeConstraints::find_type_constraint($type_or_name);
return unless $other->isa(__PACKAGE__);
-
+
return (
$self->parent->equals($other->parent)
and
}
}
-=head2 type_constraints_equals
+=method type_constraints_equals
Checks to see if the internal type constraints are equal.
while(@self_type_constraints) {
my $self_type_constraint = shift @self_type_constraints;
my $other_type_constraint = shift @other_type_constraints;
-
+
$_ = Moose::Util::TypeConstraints::find_or_create_isa_type_constraint($_)
for $self_type_constraint, $other_type_constraint;
my $result = $self_type_constraint->$op($other_type_constraint);
return unless $result;
}
-
+
return 1; ##If we get this far, everything is good.
}
while(@self_type_constraints) {
my $self_type_constraint = shift @self_type_constraints;
my $other_type_constraint = shift @other_type_constraints;
-
+
$_ = Moose::Util::TypeConstraints::find_or_create_isa_type_constraint($_)
for $self_type_constraint, $other_type_constraint;
-
+
return 1 if $self_type_constraint->$op($other_type_constraint);
}
return 0;
}
-=head2 get_message
+=method get_message
Give you a better peek into what's causing the error. For now we stringify the
incoming deep value with L<Devel::PartialDump> and pass that on to either your
L<Moose>, L<Moose::Meta::TypeConstraint>
-=head1 AUTHOR
-
-John Napiorkowski, C<< <jjnapiork@cpan.org> >>
-
-=head1 COPYRIGHT & LICENSE
-
-This program is free software; you can redistribute it and/or modify
-it under the same terms as Perl itself.
-
=cut
__PACKAGE__->meta->make_immutable(inline_constructor => 0);
projects / gitmo/MooseX-Types-Structured.git / blobdiff