Commit | Line | Data |
51a3b106 |
1 | package Method::Generate::Accessor; |
2 | |
3 | use strictures 1; |
b1eebd55 |
4 | use Moo::_Utils; |
5 | use base qw(Moo::Object); |
51a3b106 |
6 | use Sub::Quote; |
7 | use B 'perlstring'; |
daa05b62 |
8 | BEGIN { |
6e294299 |
9 | our $CAN_HAZ_XS = |
10 | _maybe_load_module('Class::XSAccessor') |
11 | && |
12 | (Class::XSAccessor->VERSION > 1.06) |
13 | ; |
daa05b62 |
14 | } |
51a3b106 |
15 | |
316917c9 |
16 | sub generate_method { |
6f68f022 |
17 | my ($self, $into, $name, $spec, $quote_opts) = @_; |
51a3b106 |
18 | die "Must have an is" unless my $is = $spec->{is}; |
dcae37d3 |
19 | if ($is eq 'ro') { |
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}; |
26 | $spec->{lazy} = 1; |
27 | $spec->{builder} ||= '_build_'.$name unless $spec->{default}; |
28 | } elsif ($is ne 'bare') { |
29 | die "Unknown is ${is}"; |
30 | } |
31 | my %methods; |
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 |
36 | ); |
37 | } else { |
38 | local $self->{captures} = {}; |
39 | $methods{$reader} = |
40 | quote_sub "${into}::${reader}" |
41 | => $self->_generate_get($name, $spec) |
42 | => $self->{captures} |
43 | ; |
44 | } |
45 | } |
46 | if (my $accessor = $spec->{accessor}) { |
47 | if ( |
48 | our $CAN_HAZ_XS |
49 | && $self->is_simple_get($name, $spec) |
50 | && $self->is_simple_set($name, $spec) |
51 | ) { |
52 | $methods{$accessor} = $self->_generate_xs( |
53 | accessors => $into, $accessor, $name |
54 | ); |
55 | } else { |
56 | local $self->{captures} = {}; |
57 | $methods{$accessor} = |
58 | quote_sub "${into}::${accessor}" |
59 | => $self->_generate_getset($name, $spec) |
60 | => $self->{captures} |
61 | ; |
62 | } |
63 | } |
64 | if (my $writer = $spec->{writer}) { |
65 | if ( |
66 | our $CAN_HAZ_XS |
67 | && $self->is_simple_set($name, $spec) |
68 | ) { |
69 | $methods{$writer} = $self->_generate_xs( |
70 | setters => $into, $writer, $name |
71 | ); |
51a3b106 |
72 | } else { |
dcae37d3 |
73 | local $self->{captures} = {}; |
74 | $methods{$writer} = |
75 | quote_sub "${into}::${writer}" |
76 | => $self->_generate_set($name, $spec) |
77 | => $self->{captures} |
78 | ; |
51a3b106 |
79 | } |
dcae37d3 |
80 | } |
8f333548 |
81 | if (my $pred = $spec->{predicate}) { |
dcae37d3 |
82 | $methods{$pred} = |
83 | quote_sub "${into}::${pred}" => |
84 | ' '.$self->_generate_simple_has('$_[0]', $name)."\n" |
85 | ; |
8f333548 |
86 | } |
87 | if (my $cl = $spec->{clearer}) { |
dcae37d3 |
88 | $methods{$cl} = |
89 | quote_sub "${into}::${cl}" => |
90 | " delete \$_[0]->{${\perlstring $name}}\n" |
91 | ; |
901efe1a |
92 | } |
dcae37d3 |
93 | \%methods; |
51a3b106 |
94 | } |
95 | |
3a9a65a4 |
96 | sub is_simple_attribute { |
97 | my ($self, $name, $spec) = @_; |
8f333548 |
98 | # clearer doesn't have to be listed because it doesn't |
99 | # affect whether defined/exists makes a difference |
901efe1a |
100 | !grep $spec->{$_}, |
8f333548 |
101 | qw(lazy default builder isa trigger predicate); |
3a9a65a4 |
102 | } |
103 | |
daa05b62 |
104 | sub is_simple_get { |
105 | my ($self, $name, $spec) = @_; |
901efe1a |
106 | !($spec->{lazy} and ($spec->{default} or $spec->{builder})); |
daa05b62 |
107 | } |
108 | |
109 | sub is_simple_set { |
110 | my ($self, $name, $spec) = @_; |
901efe1a |
111 | !grep $spec->{$_}, qw(isa trigger); |
daa05b62 |
112 | } |
113 | |
51a3b106 |
114 | sub _generate_get { |
46389f86 |
115 | my ($self, $name, $spec) = @_; |
116 | my $simple = $self->_generate_simple_get('$_[0]', $name); |
901efe1a |
117 | if ($self->is_simple_get($name, $spec)) { |
118 | $simple; |
119 | } else { |
120 | 'do { '.$self->_generate_use_default( |
121 | '$_[0]', $name, $spec, |
122 | $self->_generate_simple_has('$_[0]', $name), |
123 | ).'; '.$simple.' }'; |
124 | } |
46389f86 |
125 | } |
126 | |
127 | sub _generate_simple_has { |
128 | my ($self, $me, $name) = @_; |
129 | "exists ${me}->{${\perlstring $name}}"; |
130 | } |
131 | |
649ac264 |
132 | sub generate_get_default { |
133 | my $self = shift; |
134 | local $self->{captures} = {}; |
135 | my $code = $self->_generate_get_default(@_); |
901efe1a |
136 | ($code, $self->{captures}); |
649ac264 |
137 | } |
138 | |
139 | sub _generate_use_default { |
140 | my ($self, $me, $name, $spec, $test) = @_; |
46389f86 |
141 | $self->_generate_simple_set( |
649ac264 |
142 | $me, $name, $self->_generate_get_default($me, $name, $spec) |
46389f86 |
143 | ).' unless '.$test; |
a16d301e |
144 | } |
145 | |
649ac264 |
146 | sub _generate_get_default { |
147 | my ($self, $me, $name, $spec) = @_; |
148 | $spec->{default} |
149 | ? $self->_generate_call_code($name, 'default', $me, $spec->{default}) |
150 | : "${me}->${\$spec->{builder}}" |
151 | } |
152 | |
a16d301e |
153 | sub generate_simple_get { |
901efe1a |
154 | my ($self, @args) = @_; |
155 | $self->_generate_simple_get(@args); |
a16d301e |
156 | } |
157 | |
158 | sub _generate_simple_get { |
159 | my ($self, $me, $name) = @_; |
160 | my $name_str = perlstring $name; |
161 | "${me}->{${name_str}}"; |
51a3b106 |
162 | } |
163 | |
164 | sub _generate_set { |
dcae37d3 |
165 | my ($self, $name, $spec) = @_; |
166 | my $simple = $self->_generate_simple_set('$_[0]', $name, '$_[1]'); |
901efe1a |
167 | if ($self->is_simple_set($name, $spec)) { |
168 | $simple; |
6d377074 |
169 | } else { |
901efe1a |
170 | my ($trigger, $isa_check) = @{$spec}{qw(trigger isa)}; |
171 | my $code = "do {\n"; |
172 | if ($isa_check) { |
173 | $code .= |
174 | " ".$self->_generate_isa_check($name, '$_[1]', $isa_check).";\n"; |
175 | } |
176 | if ($trigger) { |
177 | my $fire = $self->_generate_trigger($name, '$_[0]', '$value', $trigger); |
178 | $code .= |
179 | " my \$value = ".$simple.";\n ".$fire.";\n" |
180 | ." \$value;\n"; |
181 | } else { |
182 | $code .= " ".$simple.";\n"; |
183 | } |
184 | $code .= " }"; |
185 | $code; |
a16d301e |
186 | } |
a16d301e |
187 | } |
901efe1a |
188 | |
a16d301e |
189 | sub generate_trigger { |
190 | my $self = shift; |
191 | local $self->{captures} = {}; |
192 | my $code = $self->_generate_trigger(@_); |
901efe1a |
193 | ($code, $self->{captures}); |
a16d301e |
194 | } |
195 | |
196 | sub _generate_trigger { |
197 | my ($self, $name, $obj, $value, $trigger) = @_; |
6d377074 |
198 | $self->_generate_call_code($name, 'trigger', "${obj}, ${value}", $trigger); |
199 | } |
200 | |
201 | sub generate_isa_check { |
901efe1a |
202 | my ($self, @args) = @_; |
6d377074 |
203 | local $self->{captures} = {}; |
901efe1a |
204 | my $code = $self->_generate_isa_check(@args); |
205 | ($code, $self->{captures}); |
6d377074 |
206 | } |
207 | |
208 | sub _generate_isa_check { |
209 | my ($self, $name, $value, $check) = @_; |
210 | $self->_generate_call_code($name, 'isa_check', $value, $check); |
211 | } |
212 | |
213 | sub _generate_call_code { |
214 | my ($self, $name, $type, $values, $sub) = @_; |
215 | if (my $quoted = quoted_from_sub($sub)) { |
625d6219 |
216 | my $code = $quoted->[1]; |
6d377074 |
217 | my $at_ = 'local @_ = ('.$values.');'; |
8c6626cf |
218 | if (my $captures = $quoted->[2]) { |
6d377074 |
219 | my $cap_name = qq{\$${type}_captures_for_${name}}; |
8c6626cf |
220 | $self->{captures}->{$cap_name} = \$captures; |
221 | return "do {\n".' '.$at_."\n" |
17a8e3f0 |
222 | .Sub::Quote::capture_unroll($cap_name, $captures, 6) |
223 | ." ${code}\n }"; |
8c6626cf |
224 | } |
901efe1a |
225 | 'do { local @_ = ('.$values.'); '.$code.' }'; |
226 | } else { |
227 | my $cap_name = qq{\$${type}_for_${name}}; |
228 | $self->{captures}->{$cap_name} = \$sub; |
229 | "${cap_name}->(${values})"; |
625d6219 |
230 | } |
a16d301e |
231 | } |
232 | |
3a9a65a4 |
233 | sub generate_populate_set { |
234 | my $self = shift; |
235 | local $self->{captures} = {}; |
236 | my $code = $self->_generate_populate_set(@_); |
901efe1a |
237 | ($code, $self->{captures}); |
3a9a65a4 |
238 | } |
239 | |
240 | sub _generate_populate_set { |
241 | my ($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); |
245 | my $get_value = |
246 | "(\n${get_indent} ${test}\n${get_indent} ? ${source}\n${get_indent} : " |
247 | .$self->_generate_get_default( |
248 | '$new', $_, $spec |
249 | ) |
250 | ."\n${get_indent})"; |
251 | ($spec->{isa} |
252 | ? " {\n my \$value = ".$get_value.";\n " |
5d349892 |
253 | .$self->_generate_isa_check( |
254 | $name, '$value', $spec->{isa} |
255 | ).";\n" |
256 | .' '.$self->_generate_simple_set($me, $name, '$value').";\n" |
257 | ." }\n" |
3a9a65a4 |
258 | : ' '.$self->_generate_simple_set($me, $name, $get_value).";\n" |
259 | ) |
260 | .($spec->{trigger} |
261 | ? ' ' |
5d349892 |
262 | .$self->_generate_trigger( |
263 | $name, $me, $self->_generate_simple_get($me, $name), |
264 | $spec->{trigger} |
265 | )." if ${test};\n" |
3a9a65a4 |
266 | : '' |
267 | ); |
268 | } else { |
269 | " if (${test}) {\n" |
270 | .($spec->{isa} |
271 | ? " " |
5d349892 |
272 | .$self->_generate_isa_check( |
273 | $name, $source, $spec->{isa} |
274 | ).";\n" |
3a9a65a4 |
275 | : "" |
276 | ) |
277 | ." ".$self->_generate_simple_set($me, $name, $source).";\n" |
278 | .($spec->{trigger} |
5d349892 |
279 | ? " " |
280 | .$self->_generate_trigger( |
281 | $name, $me, $self->_generate_simple_get($me, $name), |
282 | $spec->{trigger} |
283 | ).";\n" |
284 | : "" |
3a9a65a4 |
285 | ) |
286 | ." }\n"; |
287 | } |
288 | } |
289 | |
290 | sub generate_multi_set { |
291 | my ($self, $me, $to_set, $from) = @_; |
292 | "\@{${me}}{qw(${\join ' ', @$to_set})} = $from"; |
293 | } |
294 | |
649ac264 |
295 | sub generate_simple_set { |
296 | my $self = shift; |
297 | local $self->{captures} = {}; |
298 | my $code = $self->_generate_simple_set(@_); |
901efe1a |
299 | ($code, $self->{captures}); |
649ac264 |
300 | } |
301 | |
a16d301e |
302 | sub _generate_simple_set { |
46389f86 |
303 | my ($self, $me, $name, $value) = @_; |
a16d301e |
304 | my $name_str = perlstring $name; |
46389f86 |
305 | "${me}->{${name_str}} = ${value}"; |
51a3b106 |
306 | } |
307 | |
308 | sub _generate_getset { |
a16d301e |
309 | my ($self, $name, $spec) = @_; |
dcae37d3 |
310 | q{(@_ > 1}."\n ? ".$self->_generate_set($name, $spec) |
e6f2e914 |
311 | ."\n : ".$self->_generate_get($name)."\n )"; |
51a3b106 |
312 | } |
313 | |
daa05b62 |
314 | sub _generate_xs { |
dcae37d3 |
315 | my ($self, $type, $into, $name, $slot) = @_; |
daa05b62 |
316 | Class::XSAccessor->import( |
e6f2e914 |
317 | class => $into, |
dcae37d3 |
318 | $type => { $name => $slot } |
daa05b62 |
319 | ); |
901efe1a |
320 | $into->can($name); |
daa05b62 |
321 | } |
322 | |
51a3b106 |
323 | 1; |