use warnings;
use Scalar::Util qw(blessed);
-sub _install_accessor{
- my (undef, $attribute, $method_name, $class, $type) = @_;
+sub _generate_accessor{
+ my (undef, $attribute, $class, $type) = @_;
my $name = $attribute->name;
my $default = $attribute->default;
my $accessor =
'#line ' . __LINE__ . ' "' . __FILE__ . "\"\n" .
"sub {\n";
+
if ($type eq 'accessor' || $type eq 'writer') {
if($type eq 'accessor'){
$accessor .=
else{ # writer
$accessor .=
'#line ' . __LINE__ . ' "' . __FILE__ . "\"\n" .
- 'if(@_ < 2){ Carp::confess("Not enough arguments for writer '.$method_name.'") }'.
+ 'if(@_ < 2){ Carp::confess("Not enough arguments for the writer of '.$name.'") }'.
'{' . "\n";
}
$accessor .= 'return '.$self.'->{'.$key."};\n}";
#print $accessor, "\n";
- my $code = eval $accessor;
- $attribute->throw_error($@) if $@;
-
- $class->add_method($method_name => $code);
- return;
+ my $code;
+ my $e = do{
+ local $@;
+ $code = eval $accessor;
+ $@;
+ };
+ die $e if $e;
+
+ return $code;
}
-sub _install_reader{
+sub _generate_reader{
my $class = shift;
- $class->_install_accessor(@_, 'reader');
- return;
+ return $class->_generate_accessor(@_, 'reader');
}
-sub _install_writer{
+sub _generate_writer{
my $class = shift;
- $class->_install_accessor(@_, 'writer');
- return;
+ return $class->_generate_accessor(@_, 'writer');
}
-sub _install_predicate {
- my (undef, $attribute, $method_name, $class) = @_;
+sub _generate_predicate {
+ my (undef, $attribute, $class) = @_;
my $slot = $attribute->name;
-
- $class->add_method($method_name => sub{
+ return sub{
return exists $_[0]->{$slot};
- });
- return;
+ };
}
-sub _install_clearer {
- my (undef, $attribute, $method_name, $class) = @_;
+sub _generate_clearer {
+ my (undef, $attribute, $class) = @_;
my $slot = $attribute->name;
- $class->add_method($method_name => sub{
+ return sub{
delete $_[0]->{$slot};
- });
- return;
+ };
}
-sub _install_handles {
- my (undef, $attribute, $handles, $class) = @_;
-
- my $reader = $attribute->reader || $attribute->accessor
- or $class->throw_error("You must pass a reader method for '".$attribute->name."'");
-
- my %handles = $attribute->_canonicalize_handles($handles);
-
- foreach my $handle_name (keys %handles) {
- my $method_to_call = $handles{$handle_name};
-
- my $code = sub {
- my $instance = shift;
- my $proxy = $instance->$reader();
-
- my $error = !defined($proxy) ? ' is not defined'
- : ref($proxy) && !blessed($proxy) ? qq{ is not an object (got '$proxy')}
- : undef;
- if ($error) {
- $instance->meta->throw_error(
- "Cannot delegate $handle_name to $method_to_call because "
- . "the value of "
- . $attribute->name
- . $error
- );
- }
- $proxy->$method_to_call(@_);
- };
- $class->add_method($handle_name => $code);
- }
- return;
+sub _generate_delegation{
+ my (undef, $attribute, $class, $reader, $handle_name, $method_to_call) = @_;
+
+ return sub {
+ my $instance = shift;
+ my $proxy = $instance->$reader();
+
+ my $error = !defined($proxy) ? ' is not defined'
+ : ref($proxy) && !blessed($proxy) ? qq{ is not an object (got '$proxy')}
+ : undef;
+ if ($error) {
+ $instance->meta->throw_error(
+ "Cannot delegate $handle_name to $method_to_call because "
+ . "the value of "
+ . $attribute->name
+ . $error
+ );
+ }
+ $proxy->$method_to_call(@_);
+ };
}