# get symbol table reference
my $stash = do { no strict 'refs'; \%{"${target}::"} };
_install_tracked $target => has => sub {
- my ($name_proto, %spec) = @_;
- my $name_isref = ref $name_proto eq 'ARRAY';
- foreach my $name ($name_isref ? @$name_proto : $name_proto) {
- my $spec_ref = $name_isref ? +{%spec} : \%spec;
+ my $name_proto = shift;
+ my @name_proto = ref $name_proto eq 'ARRAY' ? @$name_proto : $name_proto;
+ if (@_ % 2 != 0) {
+ require Carp;
+ Carp::croak("Invalid options for " . join(', ', map "'$_'", @name_proto)
+ . " attribute(s): even number of arguments expected, got " . scalar @_)
+ }
+ my %spec = @_;
+ foreach my $name (@name_proto) {
+ my $spec_ref = @name_proto > 1 ? +{%spec} : \%spec;
($INFO{$target}{accessor_maker} ||= do {
require Method::Generate::Accessor;
Method::Generate::Accessor->new