use constant DECLARE_NONE => 4;
use constant DECLARE_PACKAGE => 8+1; # name implicit
-use vars qw(%declarators %declarator_handlers);
+use vars qw(%declarators %declarator_handlers @ISA);
use base qw(DynaLoader);
use Scalar::Util 'set_prototype';
bootstrap Devel::Declare;
+@ISA = ();
+
sub import {
my ($class, %args) = @_;
my $target = caller;
sub done_declare {
no strict 'refs';
- my $name = pop(@{$temp_name||[]});
+ my $name = shift(@{$temp_name||[]});
die "done_declare called with no temp_name stack" unless defined($name);
- my $saved = pop(@$temp_save);
+ my $saved = shift(@$temp_save);
$name =~ s/(.*):://;
my $temp_pack = $1;
delete ${"${temp_pack}::"}{$name};
package ${pack};
my \$body;
sub ${name} (${proto}) :lvalue {\n"
- .'$body->(@_);
+ .'my $ret = $body->(@_);
+ return $ret;
};
sub { ($body) = @_; };';
}
sub setup_declarators {
my ($class, $pack, $to_setup) = @_;
- die "${class}->setup_declarator(\$pack, \\\%to_setup)"
- unless defined($pack) && ref($to_setup eq 'HASH');
+ die "${class}->setup_declarators(\$pack, \\\%to_setup)"
+ unless defined($pack) && ref($to_setup) eq 'HASH';
+ my %setup_for_args;
foreach my $name (keys %$to_setup) {
my $info = $to_setup->{$name};
my $flags = $info->{flags} || DECLARE_NAME;
my $sub_proto = $proto;
# make all args optional to enable lvalue for DECLARE_NONE
$sub_proto =~ s/;//; $sub_proto = ';'.$sub_proto;
- my $installer = $class->build_sub_installer($pack, $name, $proto);
- # XXX UNCLEAN
+ #my $installer = $class->build_sub_installer($pack, $name, $proto);
+ my $installer = $class->build_sub_installer($pack, $name, '@');
+ my $proto_maker = eval q!
+ sub {
+ my $body = shift;
+ sub (!.$sub_proto.q!) {
+ $body->(@_);
+ };
+ };
+ !;
+ $installer->(sub :lvalue {
+ if (@_) { warn @_;
+ $run->(undef, undef, @_);
+ }
+ return my $sv;
+ });
+ $setup_for_args{$name} = [
+ $flags,
+ sub {
+ my ($usepack, $use, $inpack, $name, $proto) = @_;
+ my $extra_code = $compile->($name, $proto);
+ my $main_handler = $proto_maker->(sub {
+ $run->($name, $proto, @_);
+ });
+ my ($name_h, $XX);
+ if (defined $proto) {
+ $name_h = sub :lvalue { return my $sv; };
+ $XX = $main_handler;
+ } else {
+ $name_h = $main_handler;
+ }
+ return ($name_h, $XX, $extra_code);
+ }
+ ];
}
+ $class->setup_for($pack, \%setup_for_args);
+}
+
+sub install_declarator {
+ my ($class, $target_pack, $target_name, $flags, $filter, $handler) = @_;
+ $class->setup_declarators($target_pack, {
+ $target_name => {
+ flags => $flags,
+ compile => $filter,
+ run => $handler,
+ }
+ });
}
=head1 NAME
--- /dev/null
+use Devel::Declare;
+
+BEGIN {
+
+ Devel::Declare->install_declarator(
+ 'DeclareTest', 'method', DECLARE_PACKAGE | DECLARE_PROTO,
+ sub {
+ my ($name, $proto) = @_;
+ return 'my $self = shift;' unless defined $proto && $proto ne '@_';
+ return 'my ($self'.(length $proto ? ", ${proto}" : "").') = @_;';
+ },
+ sub {
+ my ($name, $proto, $sub) = @_;
+ if (defined $name && length $name) {
+ unless ($name =~ /::/) {
+ $name = "DeclareTest::${name}";
+ }
+ no strict 'refs';
+ *{$name} = $sub;
+ }
+ return $sub;
+ }
+ );
+
+}
+
+my ($test_method1, $test_method2);
+
+{
+ package DeclareTest;
+
+ method new {
+ my $class = ref $self || $self;
+ return bless({ @_ }, $class);
+ };
+
+ method foo ($foo) {
+ return (ref $self).': Foo: '.$foo;
+ };
+
+ method upgrade () {
+ bless($self, 'DeclareTest2');
+ };
+
+ method DeclareTest2::bar () {
+ return 'DeclareTest2: bar';
+ };
+
+ $test_method1 = method (@_) {
+ return join(', ', $self->{attr}, $_[1]);
+ };
+
+ $test_method2 = method ($what) {
+ return join(', ', ref $self, $what);
+ };
+
+}
+
+use Test::More 'no_plan';
+
+my $o = DeclareTest->new(attr => "value");
+
+isa_ok($o, 'DeclareTest');
+
+is($o->{attr}, 'value', '@_ args ok');
+
+is($o->foo('yay'), 'DeclareTest: Foo: yay', 'method with argument ok');
+
+$o->upgrade;
+
+isa_ok($o, 'DeclareTest2');
+
+is($o->bar, 'DeclareTest2: bar', 'absolute method declaration ok');
+
+is($o->$test_method1('no', 'yes'), 'value, yes', 'anon method with @_ ok');
+
+is($o->$test_method2('this'), 'DeclareTest2, this', 'anon method with proto ok');