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};
20 $spec->{reader} = $name unless exists $spec->{reader};
21 } elsif ($is eq 'rw') {
22 $spec->{accessor} = $name unless exists $spec->{accessor};
23 } elsif ($is eq 'lazy') {
24 $spec->{init_arg} = undef unless exists $spec->{init_arg};
25 $spec->{reader} = $name unless exists $spec->{reader};
27 $spec->{builder} ||= '_build_'.$name unless $spec->{default};
28 } elsif ($is ne 'bare') {
29 die "Unknown is ${is}";
32 if (my $reader = $spec->{reader}) {
33 if (our $CAN_HAZ_XS && $self->is_simple_get($name, $spec)) {
34 $methods{$reader} = $self->_generate_xs(
35 getters => $into, $reader, $name
38 local $self->{captures} = {};
40 quote_sub "${into}::${reader}"
41 => $self->_generate_get($name, $spec)
46 if (my $accessor = $spec->{accessor}) {
49 && $self->is_simple_get($name, $spec)
50 && $self->is_simple_set($name, $spec)
52 $methods{$accessor} = $self->_generate_xs(
53 accessors => $into, $accessor, $name
56 local $self->{captures} = {};
58 quote_sub "${into}::${accessor}"
59 => $self->_generate_getset($name, $spec)
64 if (my $writer = $spec->{writer}) {
67 && $self->is_simple_set($name, $spec)
69 $methods{$writer} = $self->_generate_xs(
70 setters => $into, $writer, $name
73 local $self->{captures} = {};
75 quote_sub "${into}::${writer}"
76 => $self->_generate_set($name, $spec)
81 if (my $pred = $spec->{predicate}) {
83 quote_sub "${into}::${pred}" =>
84 ' '.$self->_generate_simple_has('$_[0]', $name)."\n"
87 if (my $cl = $spec->{clearer}) {
89 quote_sub "${into}::${cl}" =>
90 " delete \$_[0]->{${\perlstring $name}}\n"
96 sub is_simple_attribute {
97 my ($self, $name, $spec) = @_;
98 # clearer doesn't have to be listed because it doesn't
99 # affect whether defined/exists makes a difference
101 qw(lazy default builder isa trigger predicate);
105 my ($self, $name, $spec) = @_;
106 !($spec->{lazy} and ($spec->{default} or $spec->{builder}));
110 my ($self, $name, $spec) = @_;
111 !grep $spec->{$_}, qw(isa trigger);
115 my ($self, $name, $spec) = @_;
116 my $simple = $self->_generate_simple_get('$_[0]', $name);
117 if ($self->is_simple_get($name, $spec)) {
120 'do { '.$self->_generate_use_default(
121 '$_[0]', $name, $spec,
122 $self->_generate_simple_has('$_[0]', $name),
127 sub _generate_simple_has {
128 my ($self, $me, $name) = @_;
129 "exists ${me}->{${\perlstring $name}}";
132 sub generate_get_default {
134 local $self->{captures} = {};
135 my $code = $self->_generate_get_default(@_);
136 ($code, $self->{captures});
139 sub _generate_use_default {
140 my ($self, $me, $name, $spec, $test) = @_;
141 $self->_generate_simple_set(
142 $me, $name, $self->_generate_get_default($me, $name, $spec)
146 sub _generate_get_default {
147 my ($self, $me, $name, $spec) = @_;
149 ? $self->_generate_call_code($name, 'default', $me, $spec->{default})
150 : "${me}->${\$spec->{builder}}"
153 sub generate_simple_get {
154 my ($self, @args) = @_;
155 $self->_generate_simple_get(@args);
158 sub _generate_simple_get {
159 my ($self, $me, $name) = @_;
160 my $name_str = perlstring $name;
161 "${me}->{${name_str}}";
165 my ($self, $name, $spec) = @_;
166 my $simple = $self->_generate_simple_set('$_[0]', $name, '$_[1]');
167 if ($self->is_simple_set($name, $spec)) {
170 my ($trigger, $isa_check) = @{$spec}{qw(trigger isa)};
174 " ".$self->_generate_isa_check($name, '$_[1]', $isa_check).";\n";
177 my $fire = $self->_generate_trigger($name, '$_[0]', '$value', $trigger);
179 " my \$value = ".$simple.";\n ".$fire.";\n"
182 $code .= " ".$simple.";\n";
189 sub generate_trigger {
191 local $self->{captures} = {};
192 my $code = $self->_generate_trigger(@_);
193 ($code, $self->{captures});
196 sub _generate_trigger {
197 my ($self, $name, $obj, $value, $trigger) = @_;
198 $self->_generate_call_code($name, 'trigger', "${obj}, ${value}", $trigger);
201 sub generate_isa_check {
202 my ($self, @args) = @_;
203 local $self->{captures} = {};
204 my $code = $self->_generate_isa_check(@args);
205 ($code, $self->{captures});
208 sub _generate_isa_check {
209 my ($self, $name, $value, $check) = @_;
210 $self->_generate_call_code($name, 'isa_check', $value, $check);
213 sub _generate_call_code {
214 my ($self, $name, $type, $values, $sub) = @_;
215 if (my $quoted = quoted_from_sub($sub)) {
216 my $code = $quoted->[1];
217 my $at_ = 'local @_ = ('.$values.');';
218 if (my $captures = $quoted->[2]) {
219 my $cap_name = qq{\$${type}_captures_for_${name}};
220 $self->{captures}->{$cap_name} = \$captures;
221 return "do {\n".' '.$at_."\n"
222 .Sub::Quote::capture_unroll($cap_name, $captures, 6)
225 'do { local @_ = ('.$values.'); '.$code.' }';
227 my $cap_name = qq{\$${type}_for_${name}};
228 $self->{captures}->{$cap_name} = \$sub;
229 "${cap_name}->(${values})";
233 sub generate_populate_set {
235 local $self->{captures} = {};
236 my $code = $self->_generate_populate_set(@_);
237 ($code, $self->{captures});
240 sub _generate_populate_set {
241 my ($self, $me, $name, $spec, $source, $test) = @_;
242 if (!$spec->{lazy} and
243 ($spec->{default} or $spec->{builder})) {
244 my $get_indent = ' ' x ($spec->{isa} ? 6 : 4);
246 "(\n${get_indent} ${test}\n${get_indent} ? ${source}\n${get_indent} : "
247 .$self->_generate_get_default(
252 ? " {\n my \$value = ".$get_value.";\n "
253 .$self->_generate_isa_check(
254 $name, '$value', $spec->{isa}
256 .' '.$self->_generate_simple_set($me, $name, '$value').";\n"
258 : ' '.$self->_generate_simple_set($me, $name, $get_value).";\n"
262 .$self->_generate_trigger(
263 $name, $me, $self->_generate_simple_get($me, $name),
272 .$self->_generate_isa_check(
273 $name, $source, $spec->{isa}
277 ." ".$self->_generate_simple_set($me, $name, $source).";\n"
280 .$self->_generate_trigger(
281 $name, $me, $self->_generate_simple_get($me, $name),
290 sub generate_multi_set {
291 my ($self, $me, $to_set, $from) = @_;
292 "\@{${me}}{qw(${\join ' ', @$to_set})} = $from";
295 sub generate_simple_set {
297 local $self->{captures} = {};
298 my $code = $self->_generate_simple_set(@_);
299 ($code, $self->{captures});
302 sub _generate_simple_set {
303 my ($self, $me, $name, $value) = @_;
304 my $name_str = perlstring $name;
305 "${me}->{${name_str}} = ${value}";
308 sub _generate_getset {
309 my ($self, $name, $spec) = @_;
310 q{(@_ > 1}."\n ? ".$self->_generate_set($name, $spec)
311 ."\n : ".$self->_generate_get($name)."\n )";
315 my ($self, $type, $into, $name, $slot) = @_;
316 Class::XSAccessor->import(
318 $type => { $name => $slot }