Commit | Line | Data |
51a3b106 |
1 | package Method::Generate::Accessor; |
2 | |
3 | use strictures 1; |
4 | use Class::Tiny::_Utils; |
5 | use base qw(Class::Tiny::Object); |
6 | use Sub::Quote; |
7 | use B 'perlstring'; |
daa05b62 |
8 | BEGIN { |
9 | our $CAN_HAZ_XS = ($^O ne 'Win32') |
10 | && _maybe_load_module('Class::XSAccessor') |
11 | && (Class::XSAccessor->VERSION > 1.06); |
12 | } |
51a3b106 |
13 | |
316917c9 |
14 | sub generate_method { |
6f68f022 |
15 | my ($self, $into, $name, $spec, $quote_opts) = @_; |
51a3b106 |
16 | die "Must have an is" unless my $is = $spec->{is}; |
a16d301e |
17 | local $self->{captures} = {}; |
daa05b62 |
18 | local $self->{into} = $into; # for XS gen |
51a3b106 |
19 | my $body = do { |
20 | if ($is eq 'ro') { |
46389f86 |
21 | $self->_generate_get($name, $spec) |
51a3b106 |
22 | } elsif ($is eq 'rw') { |
a16d301e |
23 | $self->_generate_getset($name, $spec) |
51a3b106 |
24 | } else { |
25 | die "Unknown is ${is}"; |
26 | } |
27 | }; |
8f333548 |
28 | if (my $pred = $spec->{predicate}) { |
29 | quote_sub "${into}::${pred}" => |
30 | ' '.$self->_generate_simple_has('$_[0]', $name)."\n" |
31 | ; |
32 | } |
33 | if (my $cl = $spec->{clearer}) { |
34 | quote_sub "${into}::${cl}" => |
35 | " delete \$_[0]->{${\perlstring $name}}\n" |
36 | ; |
37 | } |
daa05b62 |
38 | return $body if ref($body); # optimiferised |
6f68f022 |
39 | quote_sub |
40 | "${into}::${name}" => ' '.$body."\n", |
a16d301e |
41 | $self->{captures}, $quote_opts||{} |
6f68f022 |
42 | ; |
51a3b106 |
43 | } |
44 | |
3a9a65a4 |
45 | sub is_simple_attribute { |
46 | my ($self, $name, $spec) = @_; |
8f333548 |
47 | # clearer doesn't have to be listed because it doesn't |
48 | # affect whether defined/exists makes a difference |
49 | return !grep $spec->{$_}, |
50 | qw(lazy default builder isa trigger predicate); |
3a9a65a4 |
51 | } |
52 | |
daa05b62 |
53 | sub is_simple_get { |
54 | my ($self, $name, $spec) = @_; |
55 | return !($spec->{lazy} and ($spec->{default} or $spec->{builder})); |
56 | } |
57 | |
58 | sub is_simple_set { |
59 | my ($self, $name, $spec) = @_; |
60 | return !grep $spec->{$_}, qw(isa trigger); |
61 | } |
62 | |
51a3b106 |
63 | sub _generate_get { |
46389f86 |
64 | my ($self, $name, $spec) = @_; |
daa05b62 |
65 | if (our $CAN_HAZ_XS && $self->is_simple_get($name, $spec)) { |
66 | return $self->_generate_xs_get($name); |
67 | } |
46389f86 |
68 | my $simple = $self->_generate_simple_get('$_[0]', $name); |
69 | my ($lazy, $default, $builder) = @{$spec}{qw(lazy default builder)}; |
70 | return $simple unless $lazy and ($default or $builder); |
649ac264 |
71 | 'do { '.$self->_generate_use_default( |
72 | '$_[0]', $name, $spec, |
46389f86 |
73 | $self->_generate_simple_has('$_[0]', $name), |
74 | ).'; '.$simple.' }'; |
75 | } |
76 | |
77 | sub _generate_simple_has { |
78 | my ($self, $me, $name) = @_; |
79 | "exists ${me}->{${\perlstring $name}}"; |
80 | } |
81 | |
649ac264 |
82 | sub generate_get_default { |
83 | my $self = shift; |
84 | local $self->{captures} = {}; |
85 | my $code = $self->_generate_get_default(@_); |
86 | return ($code, $self->{captures}); |
87 | } |
88 | |
89 | sub _generate_use_default { |
90 | my ($self, $me, $name, $spec, $test) = @_; |
46389f86 |
91 | $self->_generate_simple_set( |
649ac264 |
92 | $me, $name, $self->_generate_get_default($me, $name, $spec) |
46389f86 |
93 | ).' unless '.$test; |
a16d301e |
94 | } |
95 | |
649ac264 |
96 | sub _generate_get_default { |
97 | my ($self, $me, $name, $spec) = @_; |
98 | $spec->{default} |
99 | ? $self->_generate_call_code($name, 'default', $me, $spec->{default}) |
100 | : "${me}->${\$spec->{builder}}" |
101 | } |
102 | |
a16d301e |
103 | sub generate_simple_get { |
104 | shift->_generate_simple_get(@_); |
105 | } |
106 | |
107 | sub _generate_simple_get { |
108 | my ($self, $me, $name) = @_; |
109 | my $name_str = perlstring $name; |
110 | "${me}->{${name_str}}"; |
51a3b106 |
111 | } |
112 | |
113 | sub _generate_set { |
a16d301e |
114 | my ($self, $name, $value, $spec) = @_; |
46389f86 |
115 | my $simple = $self->_generate_simple_set('$_[0]', $name, $value); |
6d377074 |
116 | my ($trigger, $isa_check) = @{$spec}{qw(trigger isa)}; |
117 | return $simple unless $trigger or $isa_check; |
118 | my $code = 'do {'; |
119 | if ($isa_check) { |
120 | $code .= ' '.$self->_generate_isa_check($name, '$_[1]', $isa_check).';'; |
121 | } |
122 | if ($trigger) { |
a16d301e |
123 | my $fire = $self->_generate_trigger($name, '$_[0]', '$value', $trigger); |
6d377074 |
124 | $code .= |
125 | ' my $value = '.$simple.'; '.$fire.'; ' |
126 | .'$value'; |
127 | } else { |
128 | $code .= ' '.$simple; |
a16d301e |
129 | } |
6d377074 |
130 | $code .= ' }'; |
131 | return $code; |
a16d301e |
132 | } |
133 | |
134 | sub generate_trigger { |
135 | my $self = shift; |
136 | local $self->{captures} = {}; |
137 | my $code = $self->_generate_trigger(@_); |
138 | return ($code, $self->{captures}); |
139 | } |
140 | |
141 | sub _generate_trigger { |
142 | my ($self, $name, $obj, $value, $trigger) = @_; |
6d377074 |
143 | $self->_generate_call_code($name, 'trigger', "${obj}, ${value}", $trigger); |
144 | } |
145 | |
146 | sub generate_isa_check { |
147 | my $self = shift; |
148 | local $self->{captures} = {}; |
149 | my $code = $self->_generate_isa_check(@_); |
150 | return ($code, $self->{captures}); |
151 | } |
152 | |
153 | sub _generate_isa_check { |
154 | my ($self, $name, $value, $check) = @_; |
155 | $self->_generate_call_code($name, 'isa_check', $value, $check); |
156 | } |
157 | |
158 | sub _generate_call_code { |
159 | my ($self, $name, $type, $values, $sub) = @_; |
160 | if (my $quoted = quoted_from_sub($sub)) { |
625d6219 |
161 | my $code = $quoted->[1]; |
6d377074 |
162 | my $at_ = 'local @_ = ('.$values.');'; |
8c6626cf |
163 | if (my $captures = $quoted->[2]) { |
6d377074 |
164 | my $cap_name = qq{\$${type}_captures_for_${name}}; |
8c6626cf |
165 | $self->{captures}->{$cap_name} = \$captures; |
166 | return "do {\n".' '.$at_."\n" |
17a8e3f0 |
167 | .Sub::Quote::capture_unroll($cap_name, $captures, 6) |
168 | ." ${code}\n }"; |
8c6626cf |
169 | } |
6d377074 |
170 | return 'do { local @_ = ('.$values.'); '.$code.' }'; |
625d6219 |
171 | } |
6d377074 |
172 | my $cap_name = qq{\$${type}_for_${name}}; |
173 | $self->{captures}->{$cap_name} = \$sub; |
174 | return "${cap_name}->(${values})"; |
a16d301e |
175 | } |
176 | |
3a9a65a4 |
177 | sub generate_populate_set { |
178 | my $self = shift; |
179 | local $self->{captures} = {}; |
180 | my $code = $self->_generate_populate_set(@_); |
181 | return ($code, $self->{captures}); |
182 | } |
183 | |
184 | sub _generate_populate_set { |
185 | my ($self, $me, $name, $spec, $source, $test) = @_; |
186 | if (!$spec->{lazy} and |
187 | ($spec->{default} or $spec->{builder})) { |
188 | my $get_indent = ' ' x ($spec->{isa} ? 6 : 4); |
189 | my $get_value = |
190 | "(\n${get_indent} ${test}\n${get_indent} ? ${source}\n${get_indent} : " |
191 | .$self->_generate_get_default( |
192 | '$new', $_, $spec |
193 | ) |
194 | ."\n${get_indent})"; |
195 | ($spec->{isa} |
196 | ? " {\n my \$value = ".$get_value.";\n " |
5d349892 |
197 | .$self->_generate_isa_check( |
198 | $name, '$value', $spec->{isa} |
199 | ).";\n" |
200 | .' '.$self->_generate_simple_set($me, $name, '$value').";\n" |
201 | ." }\n" |
3a9a65a4 |
202 | : ' '.$self->_generate_simple_set($me, $name, $get_value).";\n" |
203 | ) |
204 | .($spec->{trigger} |
205 | ? ' ' |
5d349892 |
206 | .$self->_generate_trigger( |
207 | $name, $me, $self->_generate_simple_get($me, $name), |
208 | $spec->{trigger} |
209 | )." if ${test};\n" |
3a9a65a4 |
210 | : '' |
211 | ); |
212 | } else { |
213 | " if (${test}) {\n" |
214 | .($spec->{isa} |
215 | ? " " |
5d349892 |
216 | .$self->_generate_isa_check( |
217 | $name, $source, $spec->{isa} |
218 | ).";\n" |
3a9a65a4 |
219 | : "" |
220 | ) |
221 | ." ".$self->_generate_simple_set($me, $name, $source).";\n" |
222 | .($spec->{trigger} |
5d349892 |
223 | ? " " |
224 | .$self->_generate_trigger( |
225 | $name, $me, $self->_generate_simple_get($me, $name), |
226 | $spec->{trigger} |
227 | ).";\n" |
228 | : "" |
3a9a65a4 |
229 | ) |
230 | ." }\n"; |
231 | } |
232 | } |
233 | |
234 | sub generate_multi_set { |
235 | my ($self, $me, $to_set, $from) = @_; |
236 | "\@{${me}}{qw(${\join ' ', @$to_set})} = $from"; |
237 | } |
238 | |
649ac264 |
239 | sub generate_simple_set { |
240 | my $self = shift; |
241 | local $self->{captures} = {}; |
242 | my $code = $self->_generate_simple_set(@_); |
243 | return ($code, $self->{captures}); |
244 | } |
245 | |
a16d301e |
246 | sub _generate_simple_set { |
46389f86 |
247 | my ($self, $me, $name, $value) = @_; |
a16d301e |
248 | my $name_str = perlstring $name; |
46389f86 |
249 | "${me}->{${name_str}} = ${value}"; |
51a3b106 |
250 | } |
251 | |
252 | sub _generate_getset { |
a16d301e |
253 | my ($self, $name, $spec) = @_; |
daa05b62 |
254 | if ( |
255 | our $CAN_HAZ_XS |
256 | && $self->is_simple_get($name, $spec) |
257 | && $self->is_simple_set($name, $spec) |
258 | ) { |
259 | return $self->_generate_xs_getset($name); |
260 | } |
a16d301e |
261 | q{(@_ > 1 ? }.$self->_generate_set($name, q{$_[1]}, $spec) |
262 | .' : '.$self->_generate_get($name).')'; |
51a3b106 |
263 | } |
264 | |
daa05b62 |
265 | sub _generate_xs_get { |
266 | shift->_generate_xs('getters', @_); |
267 | } |
268 | |
269 | sub _generate_xs_getset { |
270 | shift->_generate_xs('accessors', @_); |
271 | } |
272 | |
273 | sub _generate_xs { |
274 | my ($self, $type, $name) = @_; |
275 | no strict 'refs'; |
276 | Class::XSAccessor->import( |
277 | class => $self->{into}, |
278 | $type => { $name => $name } |
279 | ); |
280 | return $self->{into}->can($name); |
281 | } |
282 | |
51a3b106 |
283 | 1; |