1 package Method::Generate::Accessor;
4 use Class::Tiny::_Utils;
5 use base qw(Class::Tiny::Object);
10 my ($self, $into, $name, $spec, $quote_opts) = @_;
11 die "Must have an is" unless my $is = $spec->{is};
12 local $self->{captures} = {};
15 $self->_generate_get($name, $spec)
16 } elsif ($is eq 'rw') {
17 $self->_generate_getset($name, $spec)
19 die "Unknown is ${is}";
23 "${into}::${name}" => ' '.$body."\n",
24 $self->{captures}, $quote_opts||{}
29 my ($self, $name, $spec) = @_;
30 my $simple = $self->_generate_simple_get('$_[0]', $name);
31 my ($lazy, $default, $builder) = @{$spec}{qw(lazy default builder)};
32 return $simple unless $lazy and ($default or $builder);
33 'do { '.$self->_generate_use_default(
34 '$_[0]', $name, $spec,
35 $self->_generate_simple_has('$_[0]', $name),
39 sub _generate_simple_has {
40 my ($self, $me, $name) = @_;
41 "exists ${me}->{${\perlstring $name}}";
44 sub generate_get_default {
46 local $self->{captures} = {};
47 my $code = $self->_generate_get_default(@_);
48 return ($code, $self->{captures});
51 sub _generate_use_default {
52 my ($self, $me, $name, $spec, $test) = @_;
53 $self->_generate_simple_set(
54 $me, $name, $self->_generate_get_default($me, $name, $spec)
58 sub _generate_get_default {
59 my ($self, $me, $name, $spec) = @_;
61 ? $self->_generate_call_code($name, 'default', $me, $spec->{default})
62 : "${me}->${\$spec->{builder}}"
65 sub generate_simple_get {
66 shift->_generate_simple_get(@_);
69 sub _generate_simple_get {
70 my ($self, $me, $name) = @_;
71 my $name_str = perlstring $name;
72 "${me}->{${name_str}}";
76 my ($self, $name, $value, $spec) = @_;
77 my $simple = $self->_generate_simple_set('$_[0]', $name, $value);
78 my ($trigger, $isa_check) = @{$spec}{qw(trigger isa)};
79 return $simple unless $trigger or $isa_check;
82 $code .= ' '.$self->_generate_isa_check($name, '$_[1]', $isa_check).';';
85 my $fire = $self->_generate_trigger($name, '$_[0]', '$value', $trigger);
87 ' my $value = '.$simple.'; '.$fire.'; '
96 sub generate_trigger {
98 local $self->{captures} = {};
99 my $code = $self->_generate_trigger(@_);
100 return ($code, $self->{captures});
103 sub _generate_trigger {
104 my ($self, $name, $obj, $value, $trigger) = @_;
105 $self->_generate_call_code($name, 'trigger', "${obj}, ${value}", $trigger);
108 sub generate_isa_check {
110 local $self->{captures} = {};
111 my $code = $self->_generate_isa_check(@_);
112 return ($code, $self->{captures});
115 sub _generate_isa_check {
116 my ($self, $name, $value, $check) = @_;
117 $self->_generate_call_code($name, 'isa_check', $value, $check);
120 sub _generate_call_code {
121 my ($self, $name, $type, $values, $sub) = @_;
122 if (my $quoted = quoted_from_sub($sub)) {
123 my $code = $quoted->[1];
124 my $at_ = 'local @_ = ('.$values.');';
125 if (my $captures = $quoted->[2]) {
126 my $cap_name = qq{\$${type}_captures_for_${name}};
127 $self->{captures}->{$cap_name} = \$captures;
128 return "do {\n".' '.$at_."\n"
129 .Sub::Quote::capture_unroll($cap_name, $captures, 6)
132 return 'do { local @_ = ('.$values.'); '.$code.' }';
134 my $cap_name = qq{\$${type}_for_${name}};
135 $self->{captures}->{$cap_name} = \$sub;
136 return "${cap_name}->(${values})";
139 sub generate_simple_set {
141 local $self->{captures} = {};
142 my $code = $self->_generate_simple_set(@_);
143 return ($code, $self->{captures});
146 sub _generate_simple_set {
147 my ($self, $me, $name, $value) = @_;
148 my $name_str = perlstring $name;
149 "${me}->{${name_str}} = ${value}";
152 sub _generate_getset {
153 my ($self, $name, $spec) = @_;
154 q{(@_ > 1 ? }.$self->_generate_set($name, q{$_[1]}, $spec)
155 .' : '.$self->_generate_get($name).')';