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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 | |
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9 | sub generate_method { |
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10 | my ($self, $into, $name, $spec, $quote_opts) = @_; |
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11 | die "Must have an is" unless my $is = $spec->{is}; |
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12 | local $self->{captures} = {}; |
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13 | my $body = do { |
14 | if ($is eq 'ro') { |
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15 | $self->_generate_get($name, $spec) |
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16 | } elsif ($is eq 'rw') { |
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17 | $self->_generate_getset($name, $spec) |
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18 | } else { |
19 | die "Unknown is ${is}"; |
20 | } |
21 | }; |
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22 | quote_sub |
23 | "${into}::${name}" => ' '.$body."\n", |
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24 | $self->{captures}, $quote_opts||{} |
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25 | ; |
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26 | } |
27 | |
28 | sub _generate_get { |
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29 | my ($self, $name, $spec) = @_; |
30 | my $simple = $self->_generate_simple_get('$_[0]', $name); |
31 | my ($lazy, $default, $builder) = @{$spec}{qw(lazy default builder)}; |
32 | return $simple unless $lazy and ($default or $builder); |
33 | 'do { '.$self->_generate_default( |
34 | '$_[0]', $name, $default, $builder, |
35 | $self->_generate_simple_has('$_[0]', $name), |
36 | ).'; '.$simple.' }'; |
37 | } |
38 | |
39 | sub _generate_simple_has { |
40 | my ($self, $me, $name) = @_; |
41 | "exists ${me}->{${\perlstring $name}}"; |
42 | } |
43 | |
44 | sub _generate_default { |
45 | my ($self, $me, $name, $default, $builder, $test) = @_; |
46 | $self->_generate_simple_set( |
47 | $me, $name, ( |
48 | $default |
49 | ? $self->_generate_call_code($name, 'default', $me, $default) |
50 | : "${me}->${builder}" |
51 | ) |
52 | ).' unless '.$test; |
a16d301e |
53 | } |
54 | |
55 | sub generate_simple_get { |
56 | shift->_generate_simple_get(@_); |
57 | } |
58 | |
59 | sub _generate_simple_get { |
60 | my ($self, $me, $name) = @_; |
61 | my $name_str = perlstring $name; |
62 | "${me}->{${name_str}}"; |
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63 | } |
64 | |
65 | sub _generate_set { |
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66 | my ($self, $name, $value, $spec) = @_; |
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67 | my $simple = $self->_generate_simple_set('$_[0]', $name, $value); |
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68 | my ($trigger, $isa_check) = @{$spec}{qw(trigger isa)}; |
69 | return $simple unless $trigger or $isa_check; |
70 | my $code = 'do {'; |
71 | if ($isa_check) { |
72 | $code .= ' '.$self->_generate_isa_check($name, '$_[1]', $isa_check).';'; |
73 | } |
74 | if ($trigger) { |
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75 | my $fire = $self->_generate_trigger($name, '$_[0]', '$value', $trigger); |
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76 | $code .= |
77 | ' my $value = '.$simple.'; '.$fire.'; ' |
78 | .'$value'; |
79 | } else { |
80 | $code .= ' '.$simple; |
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81 | } |
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82 | $code .= ' }'; |
83 | return $code; |
a16d301e |
84 | } |
85 | |
86 | sub generate_trigger { |
87 | my $self = shift; |
88 | local $self->{captures} = {}; |
89 | my $code = $self->_generate_trigger(@_); |
90 | return ($code, $self->{captures}); |
91 | } |
92 | |
93 | sub _generate_trigger { |
94 | my ($self, $name, $obj, $value, $trigger) = @_; |
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95 | $self->_generate_call_code($name, 'trigger', "${obj}, ${value}", $trigger); |
96 | } |
97 | |
98 | sub generate_isa_check { |
99 | my $self = shift; |
100 | local $self->{captures} = {}; |
101 | my $code = $self->_generate_isa_check(@_); |
102 | return ($code, $self->{captures}); |
103 | } |
104 | |
105 | sub _generate_isa_check { |
106 | my ($self, $name, $value, $check) = @_; |
107 | $self->_generate_call_code($name, 'isa_check', $value, $check); |
108 | } |
109 | |
110 | sub _generate_call_code { |
111 | my ($self, $name, $type, $values, $sub) = @_; |
112 | if (my $quoted = quoted_from_sub($sub)) { |
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113 | my $code = $quoted->[1]; |
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114 | my $at_ = 'local @_ = ('.$values.');'; |
8c6626cf |
115 | if (my $captures = $quoted->[2]) { |
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116 | my $cap_name = qq{\$${type}_captures_for_${name}}; |
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117 | $self->{captures}->{$cap_name} = \$captures; |
118 | return "do {\n".' '.$at_."\n" |
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119 | .Sub::Quote::capture_unroll($cap_name, $captures, 6) |
120 | ." ${code}\n }"; |
8c6626cf |
121 | } |
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122 | return 'do { local @_ = ('.$values.'); '.$code.' }'; |
625d6219 |
123 | } |
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124 | my $cap_name = qq{\$${type}_for_${name}}; |
125 | $self->{captures}->{$cap_name} = \$sub; |
126 | return "${cap_name}->(${values})"; |
a16d301e |
127 | } |
128 | |
129 | sub _generate_simple_set { |
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130 | my ($self, $me, $name, $value) = @_; |
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131 | my $name_str = perlstring $name; |
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132 | "${me}->{${name_str}} = ${value}"; |
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133 | } |
134 | |
135 | sub _generate_getset { |
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136 | my ($self, $name, $spec) = @_; |
137 | q{(@_ > 1 ? }.$self->_generate_set($name, q{$_[1]}, $spec) |
138 | .' : '.$self->_generate_get($name).')'; |
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139 | } |
140 | |
141 | 1; |