Commit | Line | Data |
6f68f022 |
1 | package Method::Generate::Constructor; |
2 | |
3 | use strictures 1; |
4 | use Sub::Quote; |
b1eebd55 |
5 | use base qw(Moo::Object); |
14f32032 |
6 | use Sub::Defer; |
a16d301e |
7 | use B 'perlstring'; |
6f68f022 |
8 | |
96d3f07a |
9 | sub register_attribute_specs { |
10 | my ($self, %spec) = @_; |
11 | @{$self->{attribute_specs}||={}}{keys %spec} = values %spec; |
12 | $self; |
13 | } |
14 | |
15 | sub all_attribute_specs { |
16 | $_[0]->{attribute_specs} |
14f32032 |
17 | } |
18 | |
a16d301e |
19 | sub accessor_generator { |
20 | $_[0]->{accessor_generator} |
21 | } |
22 | |
14f32032 |
23 | sub install_delayed { |
24 | my ($self) = @_; |
25 | my $package = $self->{package}; |
26 | defer_sub "${package}::new" => sub { |
27 | unquote_sub $self->generate_method( |
28 | $package, 'new', $self->{attribute_specs}, { no_install => 1 } |
29 | ) |
30 | }; |
31 | $self; |
32 | } |
6f68f022 |
33 | |
34 | sub generate_method { |
35 | my ($self, $into, $name, $spec, $quote_opts) = @_; |
36 | foreach my $no_init (grep !exists($spec->{$_}{init_arg}), keys %$spec) { |
37 | $spec->{$no_init}{init_arg} = $no_init; |
38 | } |
a16d301e |
39 | local $self->{captures} = {}; |
6f68f022 |
40 | my $body = ' my $class = shift;'."\n"; |
41 | $body .= $self->_generate_args; |
42 | $body .= $self->_check_required($spec); |
43 | $body .= ' my $new = bless({}, $class);'."\n"; |
44 | $body .= $self->_assign_new($spec); |
077bd026 |
45 | if ($into->can('BUILD')) { |
46 | require Method::Generate::BuildAll; |
47 | $body .= Method::Generate::BuildAll->new->buildall_body_for( |
48 | $into, '$new', '$args' |
49 | ); |
50 | } |
4053679e |
51 | $body .= ' return $new;'."\n"; |
6f68f022 |
52 | quote_sub |
4053679e |
53 | "${into}::${name}" => $body, |
a16d301e |
54 | $self->{captures}, $quote_opts||{} |
6f68f022 |
55 | ; |
56 | } |
57 | |
3a9a65a4 |
58 | sub _cap_call { |
59 | my ($self, $code, $captures) = @_; |
60 | @{$self->{captures}}{keys %$captures} = values %$captures if $captures; |
61 | $code; |
62 | } |
63 | |
6f68f022 |
64 | sub _generate_args { |
65 | my ($self) = @_; |
66 | q{ my $args = ref($_[0]) eq 'HASH' ? $_[0] : { @_ };}."\n"; |
67 | } |
68 | |
69 | sub _assign_new { |
70 | my ($self, $spec) = @_; |
46389f86 |
71 | my (@init, @slots, %test); |
3a9a65a4 |
72 | my $ag = $self->accessor_generator; |
46389f86 |
73 | NAME: foreach my $name (sort keys %$spec) { |
6f68f022 |
74 | my $attr_spec = $spec->{$name}; |
46389f86 |
75 | next NAME unless defined(my $i = $attr_spec->{init_arg}); |
3a9a65a4 |
76 | unless ($ag->is_simple_attribute($name, $attr_spec)) { |
46389f86 |
77 | $test{$name} = $i; |
78 | next NAME; |
79 | } |
80 | push @init, $i; |
6f68f022 |
81 | push @slots, $name; |
82 | } |
649ac264 |
83 | return '' unless @init or %test; |
46389f86 |
84 | join '', ( |
85 | @init |
3a9a65a4 |
86 | ? ' '.$self->_cap_call($ag->generate_multi_set( |
5d349892 |
87 | '$new', [ @slots ], '@{$args}{qw('.join(' ',@init).')}' |
88 | )).";\n" |
46389f86 |
89 | : '' |
90 | ), map { |
91 | my $arg_key = perlstring($test{$_}); |
649ac264 |
92 | my $test = "exists \$args->{$arg_key}"; |
93 | my $source = "\$args->{$arg_key}"; |
94 | my $attr_spec = $spec->{$_}; |
3a9a65a4 |
95 | $self->_cap_call($ag->generate_populate_set( |
96 | '$new', $_, $attr_spec, $source, $test |
97 | )); |
46389f86 |
98 | } sort keys %test; |
6f68f022 |
99 | } |
100 | |
101 | sub _check_required { |
102 | my ($self, $spec) = @_; |
103 | my @required_init = |
104 | map $spec->{$_}{init_arg}, |
105 | grep $spec->{$_}{required}, |
6d377074 |
106 | sort keys %$spec; |
6f68f022 |
107 | return '' unless @required_init; |
108 | ' if (my @missing = grep !exists $args->{$_}, qw(' |
109 | .join(' ',@required_init).')) {'."\n" |
110 | .q{ die "Missing required arguments: ".join(', ', sort @missing);}."\n" |
111 | ." }\n"; |
112 | } |
113 | |
6d377074 |
114 | sub _check_isa { |
115 | my ($self, $spec) = @_; |
116 | my $acc = $self->accessor_generator; |
117 | my $captures = $self->{captures}; |
118 | my $check = ''; |
119 | foreach my $name (sort keys %$spec) { |
120 | my ($init, $isa) = @{$spec->{$name}}{qw(init_arg isa)}; |
121 | next unless $init and $isa; |
122 | my $init_str = perlstring($init); |
123 | my ($code, $add_captures) = $acc->generate_isa_check( |
124 | $name, "\$args->{${init_str}}", $isa |
125 | ); |
126 | @{$captures}{keys %$add_captures} = values %$add_captures; |
649ac264 |
127 | $check .= " ${code}".( |
128 | (not($spec->{lazy}) and ($spec->{default} or $spec->{builder}) |
129 | ? ";\n" |
130 | : "if exists \$args->{${init_str}};\n" |
131 | ) |
132 | ); |
6d377074 |
133 | } |
134 | return $check; |
135 | } |
136 | |
a16d301e |
137 | sub _fire_triggers { |
138 | my ($self, $spec) = @_; |
a16d301e |
139 | my $acc = $self->accessor_generator; |
140 | my $captures = $self->{captures}; |
141 | my $fire = ''; |
6d377074 |
142 | foreach my $name (sort keys %$spec) { |
a16d301e |
143 | my ($init, $trigger) = @{$spec->{$name}}{qw(init_arg trigger)}; |
144 | next unless $init && $trigger; |
145 | my ($code, $add_captures) = $acc->generate_trigger( |
146 | $name, '$new', $acc->generate_simple_get('$new', $name), $trigger |
147 | ); |
148 | @{$captures}{keys %$add_captures} = values %$add_captures; |
149 | $fire .= " ${code} if exists \$args->{${\perlstring $init}};\n"; |
150 | } |
151 | return $fire; |
152 | } |
153 | |
6f68f022 |
154 | 1; |