Commit | Line | Data |
fc1d8369 |
1 | package Mouse::Meta::Method::Constructor; |
2 | use strict; |
3 | use warnings; |
4 | |
5 | sub generate_constructor_method_inline { |
41cdacce |
6 | my ($class, $meta) = @_; |
24ad3f66 |
7 | |
a4d5249c |
8 | my @attrs = $meta->compute_all_applicable_attributes; |
fc1d8369 |
9 | my $buildall = $class->_generate_BUILDALL($meta); |
9dcd7d23 |
10 | my $buildargs = $class->_generate_BUILDARGS($meta); |
c12edd9a |
11 | my $processattrs = $class->_generate_processattrs($meta, \@attrs); |
3fee6f68 |
12 | my @compiled_constraints = map { $_ ? $_->{_compiled_type_constraint} : undef } map { $_->{type_constraint} } @attrs; |
fc1d8369 |
13 | |
24ad3f66 |
14 | my $code = <<"..."; |
fc1d8369 |
15 | sub { |
16 | my \$class = shift; |
53d4053e |
17 | $buildargs; |
24ad3f66 |
18 | my \$instance = bless {}, \$class; |
fc1d8369 |
19 | $processattrs; |
20 | $buildall; |
21 | return \$instance; |
22 | } |
23 | ... |
24ad3f66 |
24 | |
24ad3f66 |
25 | local $@; |
3fee6f68 |
26 | # warn $code; |
24ad3f66 |
27 | my $res = eval $code; |
28 | die $@ if $@; |
29 | $res; |
fc1d8369 |
30 | } |
31 | |
32 | sub _generate_processattrs { |
c12edd9a |
33 | my ($class, $meta, $attrs) = @_; |
fc1d8369 |
34 | my @res; |
9df6f0cd |
35 | |
36 | for my $index (0 .. @$attrs - 1) { |
c12edd9a |
37 | my $attr = $attrs->[$index]; |
fc1d8369 |
38 | my $key = $attr->name; |
9df6f0cd |
39 | my $code = ''; |
40 | |
41 | if (defined $attr->init_arg) { |
42 | my $from = $attr->init_arg; |
c91862e8 |
43 | |
9df6f0cd |
44 | $code .= "if (exists \$args->{'$from'}) {\n"; |
c91862e8 |
45 | |
b3b74cc6 |
46 | if ($attr->should_coerce && $attr->type_constraint) { |
86b99892 |
47 | $code .= "my \$value = Mouse::Util::TypeConstraints->typecast_constraints('".$attr->associated_class->name."', \$attrs[$index]->{type_constraint}, \$args->{'$from'});\n"; |
7bf66a9b |
48 | } |
49 | else { |
7756897f |
50 | $code .= "my \$value = \$args->{'$from'};\n"; |
fc1d8369 |
51 | } |
c91862e8 |
52 | |
fc1d8369 |
53 | if ($attr->has_type_constraint) { |
3fee6f68 |
54 | if ($attr->type_constraint->{_compiled_type_constraint}) { |
55 | $code .= "unless (\$compiled_constraints[$index](\$value)) {"; |
56 | } else { |
57 | $code .= "unless (\$attrs[$index]->{type_constraint}->check(\$value)) {"; |
58 | } |
59 | $code .= " |
60 | \$attrs[$index]->verify_type_constraint_error( |
61 | '$key', \$_, \$attrs[$index]->type_constraint |
62 | ) |
7756897f |
63 | } |
3fee6f68 |
64 | "; |
fc1d8369 |
65 | } |
c91862e8 |
66 | |
7756897f |
67 | $code .= "\$instance->{'$key'} = \$value;\n"; |
c91862e8 |
68 | |
41cdacce |
69 | if ($attr->is_weak_ref) { |
7756897f |
70 | $code .= "Scalar::Util::weaken( \$instance->{'$key'} ) if ref( \$value );\n"; |
41cdacce |
71 | } |
c91862e8 |
72 | |
9df6f0cd |
73 | if ($attr->has_trigger) { |
88b6c018 |
74 | $code .= "\$attrs[$index]->{trigger}->( \$instance, \$value );\n"; |
fc1d8369 |
75 | } |
c91862e8 |
76 | |
7756897f |
77 | $code .= "\n} else {\n"; |
9df6f0cd |
78 | } |
c91862e8 |
79 | |
9df6f0cd |
80 | if ($attr->has_default || $attr->has_builder) { |
81 | unless ($attr->is_lazy) { |
82 | my $default = $attr->default; |
83 | my $builder = $attr->builder; |
e8ba7b26 |
84 | |
9df6f0cd |
85 | $code .= "my \$value = "; |
e8ba7b26 |
86 | |
9df6f0cd |
87 | if ($attr->should_coerce && $attr->type_constraint) { |
86b99892 |
88 | $code .= "Mouse::Util::TypeConstraints->typecast_constraints('".$attr->associated_class->name."', \$attrs[$index]->{type_constraint}, "; |
9df6f0cd |
89 | } |
e8ba7b26 |
90 | |
9df6f0cd |
91 | if ($attr->has_builder) { |
92 | $code .= "\$instance->$builder"; |
fc1d8369 |
93 | } |
9df6f0cd |
94 | elsif (ref($default) eq 'CODE') { |
95 | $code .= "\$attrs[$index]->{default}->(\$instance)"; |
e8ba7b26 |
96 | } |
9df6f0cd |
97 | elsif (!defined($default)) { |
98 | $code .= 'undef'; |
fc1d8369 |
99 | } |
9df6f0cd |
100 | elsif ($default =~ /^\-?[0-9]+(?:\.[0-9]+)$/) { |
101 | $code .= $default; |
102 | } |
103 | else { |
104 | $code .= "'$default'"; |
fc1d8369 |
105 | } |
e8ba7b26 |
106 | |
9df6f0cd |
107 | if ($attr->should_coerce) { |
7756897f |
108 | $code .= ");\n"; |
9df6f0cd |
109 | } |
110 | else { |
7756897f |
111 | $code .= ";\n"; |
9df6f0cd |
112 | } |
e8ba7b26 |
113 | |
9df6f0cd |
114 | if ($attr->has_type_constraint) { |
7756897f |
115 | $code .= "{ |
684db121 |
116 | unless (\$attrs[$index]->{type_constraint}->check(\$value)) { |
7756897f |
117 | \$attrs[$index]->verify_type_constraint_error('$key', \$_, \$attrs[$index]->type_constraint) |
118 | } |
119 | }"; |
fc1d8369 |
120 | } |
9df6f0cd |
121 | |
7756897f |
122 | $code .= "\$instance->{'$key'} = \$value;\n"; |
9df6f0cd |
123 | |
124 | if ($attr->is_weak_ref) { |
7756897f |
125 | $code .= "Scalar::Util::weaken( \$instance->{'$key'} ) if ref( \$value );\n"; |
fc1d8369 |
126 | } |
127 | } |
713a2a05 |
128 | } |
9df6f0cd |
129 | elsif ($attr->is_required) { |
7756897f |
130 | $code .= "Carp::confess('Attribute ($key) is required');"; |
9df6f0cd |
131 | } |
132 | |
7756897f |
133 | $code .= "}\n" if defined $attr->init_arg; |
9df6f0cd |
134 | |
fc1d8369 |
135 | push @res, $code; |
136 | } |
9df6f0cd |
137 | |
fc1d8369 |
138 | return join "\n", @res; |
139 | } |
140 | |
141 | sub _generate_BUILDARGS { |
9dcd7d23 |
142 | my $self = shift; |
143 | my $meta = shift; |
144 | |
58600853 |
145 | if ($meta->name->can('BUILDARGS') && $meta->name->can('BUILDARGS') != Mouse::Object->can('BUILDARGS')) { |
53d4053e |
146 | return 'my $args = $class->BUILDARGS(@_)'; |
9dcd7d23 |
147 | } |
148 | |
149 | return <<'...'; |
53d4053e |
150 | my $args; |
fc1d8369 |
151 | if ( scalar @_ == 1 ) { |
c9aefe26 |
152 | ( ref( $_[0] ) eq 'HASH' ) |
fc1d8369 |
153 | || Carp::confess "Single parameters to new() must be a HASH ref"; |
53d4053e |
154 | $args = +{ %{ $_[0] } }; |
fc1d8369 |
155 | } |
156 | else { |
53d4053e |
157 | $args = +{@_}; |
fc1d8369 |
158 | } |
fc1d8369 |
159 | ... |
160 | } |
161 | |
162 | sub _generate_BUILDALL { |
163 | my ($class, $meta) = @_; |
164 | return '' unless $meta->name->can('BUILD'); |
165 | |
166 | my @code = (); |
167 | push @code, q{no strict 'refs';}; |
168 | push @code, q{no warnings 'once';}; |
169 | no strict 'refs'; |
f2becec7 |
170 | no warnings 'once'; |
ca3bebbd |
171 | for my $klass ($meta->linearized_isa) { |
172 | if (*{ $klass . '::BUILD' }{CODE}) { |
813197f3 |
173 | unshift @code, qq{${klass}::BUILD(\$instance, \$args);}; |
fc1d8369 |
174 | } |
175 | } |
176 | return join "\n", @code; |
177 | } |
178 | |
179 | 1; |