1 package Mouse::Meta::Method::Constructor;
5 sub generate_constructor_method_inline {
6 my ($class, $meta) = @_;
8 my @attrs = $meta->compute_all_applicable_attributes; # this one is using by evaled code
9 my $buildall = $class->_generate_BUILDALL($meta);
10 my $buildargs = $class->_generate_BUILDARGS();
11 my $processattrs = $class->_generate_processattrs($meta, \@attrs);
16 my \$args = $buildargs;
17 my \$instance = bless {}, \$class;
24 warn $code if $ENV{DEBUG};
32 sub _generate_processattrs {
33 my ($class, $meta, $attrs) = @_;
35 for my $index (0..scalar(@$attrs)-1) {
36 my $attr = $attrs->[$index];
37 my $from = $attr->init_arg;
38 my $key = $attr->name;
43 if ($attr->should_coerce) {
44 push @code, "my \$value = \$attrs[$index]->coerce_constraint( \$args->{'$from'});";
47 push @code, "my \$value = \$args->{'$from'};";
50 if ($attr->has_type_constraint) {
51 push @code, "\$attrs[$index]->verify_type_constraint( \$value );";
54 push @code, "\$instance->{'$key'} = \$value;";
56 if ($attr->is_weak_ref) {
57 push @code, "weaken( \$instance->{'$key'} ) if ref( \$value );";
60 if ( $attr->has_trigger ) {
61 push @code, "\$attrs[$index]->trigger->( \$instance, \$value, \$attrs[$index] );";
67 my $make_default_value = do {
70 if ( $attr->has_default || $attr->has_builder ) {
71 unless ( $attr->is_lazy ) {
72 my $default = $attr->default;
73 my $builder = $attr->builder;
75 push @code, "my \$value = ";
77 if ($attr->should_coerce) {
78 push @code, "\$attrs[$index]->coerce_constraint(";
81 if ($attr->has_builder) {
82 push @code, "\$instance->$builder";
84 elsif (ref($default) eq 'CODE') {
85 push @code, "\$attrs[$index]->default()->()";
88 push @code, "\$attrs[$index]->default()";
91 if ($attr->should_coerce) {
98 if ($attr->has_type_constraint) {
99 push @code, "\$attrs[$index]->verify_type_constraint(\$value);";
102 push @code, "\$instance->{'$key'} = \$value;";
104 if ($attr->is_weak_ref) {
105 push @code, "weaken( \$instance->{'$key'} ) if ref( \$value );";
111 if ( $attr->is_required ) {
112 qq{Carp::confess("Attribute ($key) is required");};
120 if (exists(\$args->{'$from'})) {
129 return join "\n", @res;
132 sub _generate_BUILDARGS {
135 if ( scalar @_ == 1 ) {
136 if ( defined $_[0] ) {
137 ( ref( $_[0] ) eq 'HASH' )
138 || Carp::confess "Single parameters to new() must be a HASH ref";
152 sub _generate_BUILDALL {
153 my ($class, $meta) = @_;
154 return '' unless $meta->name->can('BUILD');
157 push @code, q{no strict 'refs';};
158 push @code, q{no warnings 'once';};
160 for my $klass ($meta->linearized_isa) {
161 if (*{ $klass . '::BUILD' }{CODE}) {
162 push @code, qq{${klass}::BUILD(\$instance, \$args);};
165 return join "\n", @code;