1 package Mouse::Meta::Method::Constructor;
5 sub generate_constructor_method_inline {
6 my ($class, $meta) = @_;
8 my $buildall = $class->_generate_BUILDALL($meta);
9 my $buildargs = $class->_generate_BUILDARGS();
10 my $processattrs = $class->_generate_processattrs($meta);
15 my \$args = $buildargs;
16 my \$instance = bless {}, \$class;
23 warn $code if $ENV{DEBUG};
31 sub _generate_processattrs {
32 my ($class, $meta, ) = @_;
33 my @attrs = $meta->compute_all_applicable_attributes;
35 for my $attr (@attrs) {
36 my $from = $attr->init_arg;
37 my $key = $attr->name;
40 if ($attr->should_coerce) {
41 push @code, "\$args->{\$from} = \$attr->coerce_constraint( \$args->{\$from} );";
43 if ($attr->has_type_constraint) {
44 push @code, "\$attr->verify_type_constraint( \$args->{\$from} );";
46 push @code, "\$instance->{\$key} = \$args->{\$from};";
47 if ($attr->is_weak_ref) {
48 push @code, "weaken( \$instance->{\$key} ) if ref( \$instance->{\$key} );";
50 if ( $attr->has_trigger ) {
51 push @code, "\$attr->trigger->( \$instance, \$args->{\$from}, \$attr );";
57 if ( $attr->has_default || $attr->has_builder ) {
58 unless ( $attr->is_lazy ) {
59 my $default = $attr->default;
60 my $builder = $attr->builder;
61 if ($attr->has_builder) {
62 push @code, "my \$value = \$instance->$builder;";
63 } elsif (ref($default) eq 'CODE') {
64 push @code, "my \$value = \$attr->default()->();";
66 push @code, "my \$value = \$attr->default();";
68 if ($attr->should_coerce) {
69 push @code, "\$value = \$attr->coerce_constraint(\$value);";
71 if ($attr->has_type_constraint) {
72 push @code, "\$attr->verify_type_constraint(\$value);";
74 push @code, "\$instance->{\$key} = \$value;";
75 if ($attr->is_weak_ref) {
76 push @code, "weaken( \$instance->{\$key} ) if ref( \$instance->{\$key} );";
82 if ( $attr->is_required ) {
83 q{Carp::confess("Attribute (} . $attr->name . q{) is required");};
91 my \$attr = \$meta->get_attribute('$key');
94 if (defined(\$from) && exists(\$args->{\$from})) {
103 return join "\n", @res;
106 sub _generate_BUILDARGS {
109 if ( scalar @_ == 1 ) {
110 if ( defined $_[0] ) {
111 ( ref( $_[0] ) eq 'HASH' )
112 || Carp::confess "Single parameters to new() must be a HASH ref";
126 sub _generate_BUILDALL {
127 my ($class, $meta) = @_;
128 return '' unless $meta->name->can('BUILD');
131 push @code, q{no strict 'refs';};
132 push @code, q{no warnings 'once';};
134 for my $class ($meta->linearized_isa) {
135 if (*{ $class . '::BUILD' }{CODE}) {
136 push @code, qq{${class}::BUILD->(\$instance, \$args);};
139 return join "\n", @code;