1 files changed, 45 insertions, 0 deletions
diff --git a/lib/Bot/Games/Meta/Role/Attribute/Command.pm b/lib/Bot/Games/Meta/Role/Attribute/Command.pm
new file mode 100644
index 0000000..bf3ea50
--- /dev/null
+++ b/lib/Bot/Games/Meta/Role/Attribute/Command.pm
@@ -0,0 +1,45 @@
+package Bot::Games::Meta::Role::Attribute::Command;
+use Moose::Role;
+
+has command => (
+    is      => 'rw',
+    isa     => 'Bool',
+    default => 0,
+);
+
+has needs_init => (
+    is      => 'rw',
+    isa     => 'Bool',
+    default => 1,
+);
+
+before _process_options => sub {
+    my $self = shift;
+    my ($name, $options) = @_;
+    warn "needs_init is useless for attributes without command"
+        if exists($options->{needs_init}) && !$options->{command};
+};
+
+around accessor_metaclass => sub {
+    my $orig = shift;
+    my $self = shift;
+    my $metaclass = $self->$orig(@_);
+    return $metaclass unless $self->command;
+    return Moose::Meta::Class->create_anon_class(
+        superclasses => [$metaclass],
+        roles        => ['Bot::Games::Meta::Role::Method::Command'],
+        cache        => 1,
+    )->name;
+};
+
+after install_accessors => sub {
+    my $self = shift;
+    return unless $self->command;
+    my $method_meta = $self->get_read_method_ref;
+    $method_meta->pass_args(0);
+    $method_meta->needs_init($self->needs_init);
+};
+
+no Moose::Role;
+
+1;