1 package Mouse::Meta::Method::Constructor;
5 sub generate_constructor_method_inline {
6 my ($class, $meta) = @_;
8 my @attrs = $meta->compute_all_applicable_attributes;
9 my $buildall = $class->_generate_BUILDALL($meta);
10 my $buildargs = $class->_generate_BUILDARGS();
11 my $processattrs = $class->_generate_processattrs($meta, \@attrs);
16 my \$args = $buildargs;
17 my \$instance = bless {}, \$class;
30 sub _generate_processattrs {
31 my ($class, $meta, $attrs) = @_;
33 for my $index (0..scalar(@$attrs)-1) {
34 my $attr = $attrs->[$index];
35 my $from = $attr->init_arg;
36 my $key = $attr->name;
41 if ($attr->should_coerce && $attr->type_constraint) {
42 push @code, "my \$value = Mouse::TypeRegistry->typecast_constraints('".$attr->associated_class->name."', \$attrs[$index]->{find_type_constraint}, \$attrs[$index]->{type_constraint}, \$args->{'$from'});";
45 push @code, "my \$value = \$args->{'$from'};";
48 if ($attr->has_type_constraint) {
49 push @code, "{local \$_ = \$value; unless (\$attrs[$index]->{find_type_constraint}->(\$_)) {";
50 push @code, "\$attrs[$index]->verify_type_constraint_error('$key', \$_, \$attrs[$index]->type_constraint)}}";
53 push @code, "\$instance->{'$key'} = \$value;";
55 if ($attr->is_weak_ref) {
56 push @code, "Scalar::Util::weaken( \$instance->{'$key'} ) if ref( \$value );";
59 if ( $attr->has_trigger ) {
60 push @code, "\$attrs[$index]->{trigger}->( \$instance, \$value, \$attrs[$index] );";
66 my $make_default_value = do {
69 if ( $attr->has_default || $attr->has_builder ) {
70 unless ( $attr->is_lazy ) {
71 my $default = $attr->default;
72 my $builder = $attr->builder;
74 push @code, "my \$value = ";
76 if ($attr->should_coerce && $attr->type_constraint) {
77 push @code, "Mouse::TypeRegistry->typecast_constraints('".$attr->associated_class->name."', \$attrs[$index]->{find_type_constraint}, \$attrs[$index]->{type_constraint}, ";
79 if ($attr->has_builder) {
80 push @code, "\$instance->$builder";
82 elsif (ref($default) eq 'CODE') {
83 push @code, "\$attrs[$index]->{default}->(\$instance)";
85 elsif (!defined($default)) {
88 elsif ($default =~ /^\-?[0-9]+(?:\.[0-9]+)$/) {
92 push @code, "'$default'";
95 if ($attr->should_coerce) {
102 if ($attr->has_type_constraint) {
103 push @code, "{local \$_ = \$value; unless (\$attrs[$index]->{find_type_constraint}->(\$_)) {";
104 push @code, "\$attrs[$index]->verify_type_constraint_error('$key', \$_, \$attrs[$index]->type_constraint)}}";
107 push @code, "\$instance->{'$key'} = \$value;";
109 if ($attr->is_weak_ref) {
110 push @code, "Scalar::Util::weaken( \$instance->{'$key'} ) if ref( \$value );";
116 if ( $attr->is_required ) {
117 qq{Carp::confess("Attribute ($key) is required");};
125 if (exists(\$args->{'$from'})) {
128 if ($make_default_value) {
140 return join "\n", @res;
143 sub _generate_BUILDARGS {
146 if ( scalar @_ == 1 ) {
147 if ( defined $_[0] ) {
148 ( ref( $_[0] ) eq 'HASH' )
149 || Carp::confess "Single parameters to new() must be a HASH ref";
163 sub _generate_BUILDALL {
164 my ($class, $meta) = @_;
165 return '' unless $meta->name->can('BUILD');
168 push @code, q{no strict 'refs';};
169 push @code, q{no warnings 'once';};
171 for my $klass ($meta->linearized_isa) {
172 if (*{ $klass . '::BUILD' }{CODE}) {
173 push @code, qq{${klass}::BUILD(\$instance, \$args);};
176 return join "\n", @code;