package Moose::Exception::ParameterIsNotSubtypeOfParent; BEGIN { $Moose::Exception::ParameterIsNotSubtypeOfParent::AUTHORITY = 'cpan:STEVAN'; } $Moose::Exception::ParameterIsNotSubtypeOfParent::VERSION = '2.1204'; use Moose; extends 'Moose::Exception'; with 'Moose::Exception::Role::TypeConstraint'; has 'type_parameter' => ( is => 'ro', isa => 'Str', required => 1 ); sub _build_message { my $self = shift; my $type_parameter = $self->type_parameter; my $parent = $self->type->parent->type_parameter; return "$type_parameter is not a subtype of $parent"; } 1;