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'; |
8 | |
316917c9 |
9 | sub generate_method { |
6f68f022 |
10 | my ($self, $into, $name, $spec, $quote_opts) = @_; |
51a3b106 |
11 | die "Must have an is" unless my $is = $spec->{is}; |
a16d301e |
12 | local $self->{captures} = {}; |
51a3b106 |
13 | my $body = do { |
14 | if ($is eq 'ro') { |
46389f86 |
15 | $self->_generate_get($name, $spec) |
51a3b106 |
16 | } elsif ($is eq 'rw') { |
a16d301e |
17 | $self->_generate_getset($name, $spec) |
51a3b106 |
18 | } else { |
19 | die "Unknown is ${is}"; |
20 | } |
21 | }; |
8f333548 |
22 | if (my $pred = $spec->{predicate}) { |
23 | quote_sub "${into}::${pred}" => |
24 | ' '.$self->_generate_simple_has('$_[0]', $name)."\n" |
25 | ; |
26 | } |
27 | if (my $cl = $spec->{clearer}) { |
28 | quote_sub "${into}::${cl}" => |
29 | " delete \$_[0]->{${\perlstring $name}}\n" |
30 | ; |
31 | } |
6f68f022 |
32 | quote_sub |
33 | "${into}::${name}" => ' '.$body."\n", |
a16d301e |
34 | $self->{captures}, $quote_opts||{} |
6f68f022 |
35 | ; |
51a3b106 |
36 | } |
37 | |
3a9a65a4 |
38 | sub is_simple_attribute { |
39 | my ($self, $name, $spec) = @_; |
8f333548 |
40 | # clearer doesn't have to be listed because it doesn't |
41 | # affect whether defined/exists makes a difference |
42 | return !grep $spec->{$_}, |
43 | qw(lazy default builder isa trigger predicate); |
3a9a65a4 |
44 | } |
45 | |
51a3b106 |
46 | sub _generate_get { |
46389f86 |
47 | my ($self, $name, $spec) = @_; |
48 | my $simple = $self->_generate_simple_get('$_[0]', $name); |
49 | my ($lazy, $default, $builder) = @{$spec}{qw(lazy default builder)}; |
50 | return $simple unless $lazy and ($default or $builder); |
649ac264 |
51 | 'do { '.$self->_generate_use_default( |
52 | '$_[0]', $name, $spec, |
46389f86 |
53 | $self->_generate_simple_has('$_[0]', $name), |
54 | ).'; '.$simple.' }'; |
55 | } |
56 | |
57 | sub _generate_simple_has { |
58 | my ($self, $me, $name) = @_; |
59 | "exists ${me}->{${\perlstring $name}}"; |
60 | } |
61 | |
649ac264 |
62 | sub generate_get_default { |
63 | my $self = shift; |
64 | local $self->{captures} = {}; |
65 | my $code = $self->_generate_get_default(@_); |
66 | return ($code, $self->{captures}); |
67 | } |
68 | |
69 | sub _generate_use_default { |
70 | my ($self, $me, $name, $spec, $test) = @_; |
46389f86 |
71 | $self->_generate_simple_set( |
649ac264 |
72 | $me, $name, $self->_generate_get_default($me, $name, $spec) |
46389f86 |
73 | ).' unless '.$test; |
a16d301e |
74 | } |
75 | |
649ac264 |
76 | sub _generate_get_default { |
77 | my ($self, $me, $name, $spec) = @_; |
78 | $spec->{default} |
79 | ? $self->_generate_call_code($name, 'default', $me, $spec->{default}) |
80 | : "${me}->${\$spec->{builder}}" |
81 | } |
82 | |
a16d301e |
83 | sub generate_simple_get { |
84 | shift->_generate_simple_get(@_); |
85 | } |
86 | |
87 | sub _generate_simple_get { |
88 | my ($self, $me, $name) = @_; |
89 | my $name_str = perlstring $name; |
90 | "${me}->{${name_str}}"; |
51a3b106 |
91 | } |
92 | |
93 | sub _generate_set { |
a16d301e |
94 | my ($self, $name, $value, $spec) = @_; |
46389f86 |
95 | my $simple = $self->_generate_simple_set('$_[0]', $name, $value); |
6d377074 |
96 | my ($trigger, $isa_check) = @{$spec}{qw(trigger isa)}; |
97 | return $simple unless $trigger or $isa_check; |
98 | my $code = 'do {'; |
99 | if ($isa_check) { |
100 | $code .= ' '.$self->_generate_isa_check($name, '$_[1]', $isa_check).';'; |
101 | } |
102 | if ($trigger) { |
a16d301e |
103 | my $fire = $self->_generate_trigger($name, '$_[0]', '$value', $trigger); |
6d377074 |
104 | $code .= |
105 | ' my $value = '.$simple.'; '.$fire.'; ' |
106 | .'$value'; |
107 | } else { |
108 | $code .= ' '.$simple; |
a16d301e |
109 | } |
6d377074 |
110 | $code .= ' }'; |
111 | return $code; |
a16d301e |
112 | } |
113 | |
114 | sub generate_trigger { |
115 | my $self = shift; |
116 | local $self->{captures} = {}; |
117 | my $code = $self->_generate_trigger(@_); |
118 | return ($code, $self->{captures}); |
119 | } |
120 | |
121 | sub _generate_trigger { |
122 | my ($self, $name, $obj, $value, $trigger) = @_; |
6d377074 |
123 | $self->_generate_call_code($name, 'trigger', "${obj}, ${value}", $trigger); |
124 | } |
125 | |
126 | sub generate_isa_check { |
127 | my $self = shift; |
128 | local $self->{captures} = {}; |
129 | my $code = $self->_generate_isa_check(@_); |
130 | return ($code, $self->{captures}); |
131 | } |
132 | |
133 | sub _generate_isa_check { |
134 | my ($self, $name, $value, $check) = @_; |
135 | $self->_generate_call_code($name, 'isa_check', $value, $check); |
136 | } |
137 | |
138 | sub _generate_call_code { |
139 | my ($self, $name, $type, $values, $sub) = @_; |
140 | if (my $quoted = quoted_from_sub($sub)) { |
625d6219 |
141 | my $code = $quoted->[1]; |
6d377074 |
142 | my $at_ = 'local @_ = ('.$values.');'; |
8c6626cf |
143 | if (my $captures = $quoted->[2]) { |
6d377074 |
144 | my $cap_name = qq{\$${type}_captures_for_${name}}; |
8c6626cf |
145 | $self->{captures}->{$cap_name} = \$captures; |
146 | return "do {\n".' '.$at_."\n" |
17a8e3f0 |
147 | .Sub::Quote::capture_unroll($cap_name, $captures, 6) |
148 | ." ${code}\n }"; |
8c6626cf |
149 | } |
6d377074 |
150 | return 'do { local @_ = ('.$values.'); '.$code.' }'; |
625d6219 |
151 | } |
6d377074 |
152 | my $cap_name = qq{\$${type}_for_${name}}; |
153 | $self->{captures}->{$cap_name} = \$sub; |
154 | return "${cap_name}->(${values})"; |
a16d301e |
155 | } |
156 | |
3a9a65a4 |
157 | sub generate_populate_set { |
158 | my $self = shift; |
159 | local $self->{captures} = {}; |
160 | my $code = $self->_generate_populate_set(@_); |
161 | return ($code, $self->{captures}); |
162 | } |
163 | |
164 | sub _generate_populate_set { |
165 | my ($self, $me, $name, $spec, $source, $test) = @_; |
166 | if (!$spec->{lazy} and |
167 | ($spec->{default} or $spec->{builder})) { |
168 | my $get_indent = ' ' x ($spec->{isa} ? 6 : 4); |
169 | my $get_value = |
170 | "(\n${get_indent} ${test}\n${get_indent} ? ${source}\n${get_indent} : " |
171 | .$self->_generate_get_default( |
172 | '$new', $_, $spec |
173 | ) |
174 | ."\n${get_indent})"; |
175 | ($spec->{isa} |
176 | ? " {\n my \$value = ".$get_value.";\n " |
177 | .$self->_generate_isa_check( |
178 | $name, '$value', $spec->{isa} |
179 | ).";\n" |
180 | .' '.$self->_generate_simple_set($me, $name, '$value').";\n" |
181 | ." }\n" |
182 | : ' '.$self->_generate_simple_set($me, $name, $get_value).";\n" |
183 | ) |
184 | .($spec->{trigger} |
185 | ? ' ' |
186 | .$self->_generate_trigger( |
187 | $name, $me, $self->_generate_simple_get($me, $name), |
188 | $spec->{trigger} |
189 | )." if ${test};\n" |
190 | : '' |
191 | ); |
192 | } else { |
193 | " if (${test}) {\n" |
194 | .($spec->{isa} |
195 | ? " " |
196 | .$self->_generate_isa_check( |
197 | $name, $source, $spec->{isa} |
198 | ).";\n" |
199 | : "" |
200 | ) |
201 | ." ".$self->_generate_simple_set($me, $name, $source).";\n" |
202 | .($spec->{trigger} |
203 | ? " " |
204 | .$self->_generate_trigger( |
205 | $name, $me, $self->_generate_simple_get($me, $name), |
206 | $spec->{trigger} |
207 | ).";\n" |
208 | : "" |
209 | ) |
210 | ." }\n"; |
211 | } |
212 | } |
213 | |
214 | sub generate_multi_set { |
215 | my ($self, $me, $to_set, $from) = @_; |
216 | "\@{${me}}{qw(${\join ' ', @$to_set})} = $from"; |
217 | } |
218 | |
649ac264 |
219 | sub generate_simple_set { |
220 | my $self = shift; |
221 | local $self->{captures} = {}; |
222 | my $code = $self->_generate_simple_set(@_); |
223 | return ($code, $self->{captures}); |
224 | } |
225 | |
a16d301e |
226 | sub _generate_simple_set { |
46389f86 |
227 | my ($self, $me, $name, $value) = @_; |
a16d301e |
228 | my $name_str = perlstring $name; |
46389f86 |
229 | "${me}->{${name_str}} = ${value}"; |
51a3b106 |
230 | } |
231 | |
232 | sub _generate_getset { |
a16d301e |
233 | my ($self, $name, $spec) = @_; |
234 | q{(@_ > 1 ? }.$self->_generate_set($name, q{$_[1]}, $spec) |
235 | .' : '.$self->_generate_get($name).')'; |
51a3b106 |
236 | } |
237 | |
238 | 1; |