1 package Method::Generate::Constructor;
5 use base qw(Class::Tiny::Object);
9 sub register_attribute_specs {
10 my ($self, %spec) = @_;
11 @{$self->{attribute_specs}||={}}{keys %spec} = values %spec;
15 sub all_attribute_specs {
16 $_[0]->{attribute_specs}
19 sub accessor_generator {
20 $_[0]->{accessor_generator}
25 my $package = $self->{package};
26 defer_sub "${package}::new" => sub {
27 unquote_sub $self->generate_method(
28 $package, 'new', $self->{attribute_specs}, { no_install => 1 }
35 my ($self, $into, $name, $spec, $quote_opts) = @_;
36 foreach my $no_init (grep !exists($spec->{$_}{init_arg}), keys %$spec) {
37 $spec->{$no_init}{init_arg} = $no_init;
39 local $self->{captures} = {};
40 my $body = ' my $class = shift;'."\n";
41 $body .= $self->_generate_args;
42 $body .= $self->_check_required($spec);
43 $body .= $self->_check_isa($spec);
44 $body .= ' my $new = bless({}, $class);'."\n";
45 $body .= $self->_assign_new($spec);
46 $body .= $self->_fire_triggers($spec);
47 $body .= ' return $new;'."\n";
49 "${into}::${name}" => $body,
50 $self->{captures}, $quote_opts||{}
56 q{ my $args = ref($_[0]) eq 'HASH' ? $_[0] : { @_ };}."\n";
60 my ($self, $spec) = @_;
61 my (@init, @slots, %test);
62 NAME: foreach my $name (sort keys %$spec) {
63 my $attr_spec = $spec->{$name};
64 next NAME unless defined(my $i = $attr_spec->{init_arg});
65 if ($attr_spec->{lazy}) {
72 return '' unless @init;
75 ? ' @{$new}{qw('.join(' ',@slots).')}'
76 .' = @{$args}{qw('.join(' ',@init).')};'."\n"
79 my $arg_key = perlstring($test{$_});
80 " \$new->{${\perlstring($_)}} = \$args->{$arg_key}\n"
81 ." if exists \$args->{$arg_key};\n"
86 my ($self, $spec) = @_;
88 map $spec->{$_}{init_arg},
89 grep $spec->{$_}{required},
91 return '' unless @required_init;
92 ' if (my @missing = grep !exists $args->{$_}, qw('
93 .join(' ',@required_init).')) {'."\n"
94 .q{ die "Missing required arguments: ".join(', ', sort @missing);}."\n"
99 my ($self, $spec) = @_;
100 my $acc = $self->accessor_generator;
101 my $captures = $self->{captures};
103 foreach my $name (sort keys %$spec) {
104 my ($init, $isa) = @{$spec->{$name}}{qw(init_arg isa)};
105 next unless $init and $isa;
106 my $init_str = perlstring($init);
107 my ($code, $add_captures) = $acc->generate_isa_check(
108 $name, "\$args->{${init_str}}", $isa
110 @{$captures}{keys %$add_captures} = values %$add_captures;
111 $check .= " ${code} if exists \$args->{${init_str}};\n";
117 my ($self, $spec) = @_;
118 my $acc = $self->accessor_generator;
119 my $captures = $self->{captures};
121 foreach my $name (sort keys %$spec) {
122 my ($init, $trigger) = @{$spec->{$name}}{qw(init_arg trigger)};
123 next unless $init && $trigger;
124 my ($code, $add_captures) = $acc->generate_trigger(
125 $name, '$new', $acc->generate_simple_get('$new', $name), $trigger
127 @{$captures}{keys %$add_captures} = values %$add_captures;
128 $fire .= " ${code} if exists \$args->{${\perlstring $init}};\n";