1 package Mouse::Meta::Method::Constructor;
5 sub generate_constructor_method_inline {
6 my ($class, $metaclass) = @_;
8 my $associated_metaclass_name = $metaclass->name;
9 my @attrs = $metaclass->get_all_attributes;
11 my $buildall = $class->_generate_BUILDALL($metaclass);
12 my $buildargs = $class->_generate_BUILDARGS($metaclass);
13 my $processattrs = $class->_generate_processattrs($metaclass, \@attrs);
15 my @compiled_constraints = map { $_->_compiled_type_constraint }
16 map { $_->{type_constraint} ? $_->{type_constraint} : () } @attrs;
21 return \$class->Mouse::Object::new(\@_)
22 if \$class ne q{$associated_metaclass_name};
24 my \$instance = bless {}, \$class;
37 sub _generate_processattrs {
38 my ($class, $metaclass, $attrs) = @_;
43 for my $index (0 .. @$attrs - 1) {
44 my $attr = $attrs->[$index];
45 my $key = $attr->name;
48 if (defined $attr->init_arg) {
49 my $from = $attr->init_arg;
51 $code .= "if (exists \$args->{'$from'}) {\n";
53 if ($attr->should_coerce && $attr->type_constraint) {
54 $code .= "my \$value = Mouse::Util::TypeConstraints->typecast_constraints('".$attr->associated_class->name."', \$attrs[$index]->{type_constraint}, \$args->{'$from'});\n";
57 $code .= "my \$value = \$args->{'$from'};\n";
60 if ($attr->has_type_constraint) {
61 $code .= "unless (\$compiled_constraints[$index](\$value)) {";
63 \$attrs[$index]->verify_type_constraint_error(
64 q{$key}, \$value, \$attrs[$index]->type_constraint
70 $code .= "\$instance->{q{$key}} = \$value;\n";
72 if ($attr->is_weak_ref) {
73 $code .= "Scalar::Util::weaken( \$instance->{q{$key}} ) if ref( \$value );\n";
76 if ($attr->has_trigger) {
78 $code .= "push \@triggers, [\$attrs[$index]->{trigger}, \$value];\n";
81 $code .= "\n} else {\n";
84 if ($attr->has_default || $attr->has_builder) {
85 unless ($attr->is_lazy) {
86 my $default = $attr->default;
87 my $builder = $attr->builder;
89 $code .= "my \$value = ";
91 if ($attr->should_coerce && $attr->type_constraint) {
92 $code .= "Mouse::Util::TypeConstraints->typecast_constraints('".$attr->associated_class->name."', \$attrs[$index]->{type_constraint}, ";
95 if ($attr->has_builder) {
96 $code .= "\$instance->$builder";
98 elsif (ref($default) eq 'CODE') {
99 $code .= "\$attrs[$index]->{default}->(\$instance)";
101 elsif (!defined($default)) {
104 elsif ($default =~ /^\-?[0-9]+(?:\.[0-9]+)$/) {
108 $code .= "'$default'";
111 if ($attr->should_coerce) {
118 if ($attr->has_type_constraint) {
120 unless (\$attrs[$index]->{type_constraint}->check(\$value)) {
121 \$attrs[$index]->verify_type_constraint_error(q{$key}, \$value, \$attrs[$index]->type_constraint)
126 $code .= "\$instance->{q{$key}} = \$value;\n";
128 if ($attr->is_weak_ref) {
129 $code .= "Scalar::Util::weaken( \$instance->{q{$key}} ) if ref( \$value );\n";
133 elsif ($attr->is_required) {
134 $code .= "Carp::confess('Attribute ($key) is required');";
137 $code .= "}\n" if defined $attr->init_arg;
142 if($metaclass->is_anon_class){
143 push @res, q{$instnace->{__METACLASS__} = $metaclass;};
147 unshift @res, q{my @triggers;};
148 push @res, q{$_->[0]->($instance, $_->[1]) for @triggers;};
151 return join "\n", @res;
154 sub _generate_BUILDARGS {
155 my($self, $metaclass) = @_;
157 if ($metaclass->name->can('BUILDARGS') && $metaclass->name->can('BUILDARGS') != \&Mouse::Object::BUILDARGS) {
158 return 'my $args = $class->BUILDARGS(@_)';
163 if ( scalar @_ == 1 ) {
164 ( ref( $_[0] ) eq 'HASH' )
165 || Carp::confess "Single parameters to new() must be a HASH ref";
166 $args = +{ %{ $_[0] } };
174 sub _generate_BUILDALL {
175 my ($class, $metaclass) = @_;
177 return '' unless $metaclass->name->can('BUILD');
180 for my $class ($metaclass->linearized_isa) {
184 if (*{ $class . '::BUILD' }{CODE}) {
185 unshift @code, qq{${class}::BUILD(\$instance, \$args);};
188 return join "\n", @code;