1 package Method::Generate::Accessor;
5 use base qw(Moo::Object);
10 _maybe_load_module('Class::XSAccessor')
12 (Class::XSAccessor->VERSION > 1.06)
17 my ($self, $into, $name, $spec, $quote_opts) = @_;
18 die "Must have an is" unless my $is = $spec->{is};
19 local $self->{captures} = {};
22 if (our $CAN_HAZ_XS && $self->is_simple_get($name, $spec)) {
23 $self->_generate_xs_get($into, $name);
25 $self->_generate_get($name, $spec)
27 } elsif ($is eq 'rw') {
30 && $self->is_simple_get($name, $spec)
31 && $self->is_simple_set($name, $spec)
33 $self->_generate_xs_getset($into, $name);
35 $self->_generate_getset($name, $spec)
38 die "Unknown is ${is}";
41 if (my $pred = $spec->{predicate}) {
42 quote_sub "${into}::${pred}" =>
43 ' '.$self->_generate_simple_has('$_[0]', $name)."\n"
46 if (my $cl = $spec->{clearer}) {
47 quote_sub "${into}::${cl}" =>
48 " delete \$_[0]->{${\perlstring $name}}\n"
55 "${into}::${name}" => ' '.$body."\n",
56 $self->{captures}, $quote_opts||{}
61 sub is_simple_attribute {
62 my ($self, $name, $spec) = @_;
63 # clearer doesn't have to be listed because it doesn't
64 # affect whether defined/exists makes a difference
66 qw(lazy default builder isa trigger predicate);
70 my ($self, $name, $spec) = @_;
71 !($spec->{lazy} and ($spec->{default} or $spec->{builder}));
75 my ($self, $name, $spec) = @_;
76 !grep $spec->{$_}, qw(isa trigger);
80 my ($self, $name, $spec) = @_;
81 my $simple = $self->_generate_simple_get('$_[0]', $name);
82 if ($self->is_simple_get($name, $spec)) {
85 'do { '.$self->_generate_use_default(
86 '$_[0]', $name, $spec,
87 $self->_generate_simple_has('$_[0]', $name),
92 sub _generate_simple_has {
93 my ($self, $me, $name) = @_;
94 "exists ${me}->{${\perlstring $name}}";
97 sub generate_get_default {
99 local $self->{captures} = {};
100 my $code = $self->_generate_get_default(@_);
101 ($code, $self->{captures});
104 sub _generate_use_default {
105 my ($self, $me, $name, $spec, $test) = @_;
106 $self->_generate_simple_set(
107 $me, $name, $self->_generate_get_default($me, $name, $spec)
111 sub _generate_get_default {
112 my ($self, $me, $name, $spec) = @_;
114 ? $self->_generate_call_code($name, 'default', $me, $spec->{default})
115 : "${me}->${\$spec->{builder}}"
118 sub generate_simple_get {
119 my ($self, @args) = @_;
120 $self->_generate_simple_get(@args);
123 sub _generate_simple_get {
124 my ($self, $me, $name) = @_;
125 my $name_str = perlstring $name;
126 "${me}->{${name_str}}";
130 my ($self, $name, $value, $spec) = @_;
131 my $simple = $self->_generate_simple_set('$_[0]', $name, $value);
132 if ($self->is_simple_set($name, $spec)) {
135 my ($trigger, $isa_check) = @{$spec}{qw(trigger isa)};
139 " ".$self->_generate_isa_check($name, '$_[1]', $isa_check).";\n";
142 my $fire = $self->_generate_trigger($name, '$_[0]', '$value', $trigger);
144 " my \$value = ".$simple.";\n ".$fire.";\n"
147 $code .= " ".$simple.";\n";
154 sub generate_trigger {
156 local $self->{captures} = {};
157 my $code = $self->_generate_trigger(@_);
158 ($code, $self->{captures});
161 sub _generate_trigger {
162 my ($self, $name, $obj, $value, $trigger) = @_;
163 $self->_generate_call_code($name, 'trigger', "${obj}, ${value}", $trigger);
166 sub generate_isa_check {
167 my ($self, @args) = @_;
168 local $self->{captures} = {};
169 my $code = $self->_generate_isa_check(@args);
170 ($code, $self->{captures});
173 sub _generate_isa_check {
174 my ($self, $name, $value, $check) = @_;
175 $self->_generate_call_code($name, 'isa_check', $value, $check);
178 sub _generate_call_code {
179 my ($self, $name, $type, $values, $sub) = @_;
180 if (my $quoted = quoted_from_sub($sub)) {
181 my $code = $quoted->[1];
182 my $at_ = 'local @_ = ('.$values.');';
183 if (my $captures = $quoted->[2]) {
184 my $cap_name = qq{\$${type}_captures_for_${name}};
185 $self->{captures}->{$cap_name} = \$captures;
186 return "do {\n".' '.$at_."\n"
187 .Sub::Quote::capture_unroll($cap_name, $captures, 6)
190 'do { local @_ = ('.$values.'); '.$code.' }';
192 my $cap_name = qq{\$${type}_for_${name}};
193 $self->{captures}->{$cap_name} = \$sub;
194 "${cap_name}->(${values})";
198 sub generate_populate_set {
200 local $self->{captures} = {};
201 my $code = $self->_generate_populate_set(@_);
202 ($code, $self->{captures});
205 sub _generate_populate_set {
206 my ($self, $me, $name, $spec, $source, $test) = @_;
207 if (!$spec->{lazy} and
208 ($spec->{default} or $spec->{builder})) {
209 my $get_indent = ' ' x ($spec->{isa} ? 6 : 4);
211 "(\n${get_indent} ${test}\n${get_indent} ? ${source}\n${get_indent} : "
212 .$self->_generate_get_default(
217 ? " {\n my \$value = ".$get_value.";\n "
218 .$self->_generate_isa_check(
219 $name, '$value', $spec->{isa}
221 .' '.$self->_generate_simple_set($me, $name, '$value').";\n"
223 : ' '.$self->_generate_simple_set($me, $name, $get_value).";\n"
227 .$self->_generate_trigger(
228 $name, $me, $self->_generate_simple_get($me, $name),
237 .$self->_generate_isa_check(
238 $name, $source, $spec->{isa}
242 ." ".$self->_generate_simple_set($me, $name, $source).";\n"
245 .$self->_generate_trigger(
246 $name, $me, $self->_generate_simple_get($me, $name),
255 sub generate_multi_set {
256 my ($self, $me, $to_set, $from) = @_;
257 "\@{${me}}{qw(${\join ' ', @$to_set})} = $from";
260 sub generate_simple_set {
262 local $self->{captures} = {};
263 my $code = $self->_generate_simple_set(@_);
264 ($code, $self->{captures});
267 sub _generate_simple_set {
268 my ($self, $me, $name, $value) = @_;
269 my $name_str = perlstring $name;
270 "${me}->{${name_str}} = ${value}";
273 sub _generate_getset {
274 my ($self, $name, $spec) = @_;
275 q{(@_ > 1}."\n ? ".$self->_generate_set($name, q{$_[1]}, $spec)
276 ."\n : ".$self->_generate_get($name)."\n )";
279 sub _generate_xs_get {
280 shift->_generate_xs('getters', @_);
283 sub _generate_xs_getset {
284 shift->_generate_xs('accessors', @_);
288 my ($self, $type, $into, $name) = @_;
290 Class::XSAccessor->import(
292 $type => { $name => $name }