1 package Mouse::Meta::Method::Constructor;
5 sub generate_constructor_method_inline {
6 my ($class, $meta) = @_;
7 my $code = $class->_generate_constructor_method_inline($meta);
8 warn $code if $ENV{DEBUG};
16 sub _generate_constructor_method_inline {
17 my ($class, $meta) = @_;
18 my $buildall = $class->_generate_BUILDALL($meta);
19 my $buildargs = $class->_generate_BUILDARGS();
20 my $classname = $meta->name;
21 my $processattrs = $class->_generate_processattrs($meta);
26 my \$args = $buildargs;
27 my \$instance = bless {}, '$classname';
28 my \$meta = \$instance->meta;
36 sub _generate_processattrs {
37 my ($class, $meta, ) = @_;
38 my @attrs = $meta->compute_all_applicable_attributes;
40 for my $attr (@attrs) {
41 my $from = $attr->init_arg;
42 my $key = $attr->name;
45 if ($attr->should_coerce) {
46 push @code, "\$args->{\$from} = \$attr->coerce_constraint( \$args->{\$from} );";
48 if ($attr->has_type_constraint) {
49 push @code, "\$attr->verify_type_constraint( \$args->{\$from} );";
51 push @code, "\$instance->{\$key} = \$args->{\$from};";
52 if ($attr->is_weak_ref) {
53 push @code, "weaken( \$instance->{\$key} ) if ref( \$instance->{\$key} );";
55 if ( $attr->has_trigger ) {
56 push @code, "\$attr->trigger->( \$instance, \$args->{\$from}, \$attr );";
62 if ( $attr->has_default || $attr->has_builder ) {
63 unless ( $attr->is_lazy ) {
64 my $default = $attr->default;
65 my $builder = $attr->builder;
66 if ($attr->has_builder) {
67 push @code, "my \$value = \$instance->$builder;";
68 } elsif (ref($default) eq 'CODE') {
69 push @code, "my \$value = \$attr->default()->();";
71 push @code, "my \$value = \$attr->default();";
73 if ($attr->should_coerce) {
74 push @code, "\$value = \$attr->coerce_constraint(\$value);";
76 if ($attr->has_type_constraint) {
77 push @code, "\$attr->verify_type_constraint(\$value);";
79 push @code, "\$instance->{\$key} = \$value;";
80 if ($attr->is_weak_ref) {
81 push @code, "weaken( \$instance->{\$key} ) if ref( \$instance->{\$key} );";
87 if ( $attr->is_required ) {
88 q{Carp::confess("Attribute (} . $attr->name . q{) is required");};
96 my \$attr = \$meta->get_attribute('$key');
99 if (defined(\$from) && exists(\$args->{\$from})) {
108 return join "\n", @res;
111 sub _generate_BUILDARGS {
114 if ( scalar @_ == 1 ) {
115 if ( defined $_[0] ) {
116 ( ref( $_[0] ) eq 'HASH' )
117 || Carp::confess "Single parameters to new() must be a HASH ref";
131 sub _generate_BUILDALL {
132 my ($class, $meta) = @_;
133 return '' unless $meta->name->can('BUILD');
136 push @code, q{no strict 'refs';};
137 push @code, q{no warnings 'once';};
139 for my $class ($meta->linearized_isa) {
140 if (*{ $class . '::BUILD' }{CODE}) {
141 push @code, qq{${class}::BUILD->(\$instance, \$args);};
144 return join "\n", @code;