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 = $attr->name;
43 push @code, "my \$value = \$args->{'$from'};";
45 if ($attr->should_coerce) {
46 push @code, "\$value = \$attr->coerce_constraint( \$value );";
49 if ($attr->has_type_constraint) {
50 push @code, "\$attr->verify_type_constraint( \$value );";
53 push @code, "\$instance->{'$key'} = \$value;";
55 if ($attr->is_weak_ref) {
56 push @code, "weaken( \$instance->{'$key'} ) if ref( \$value );";
59 if ( $attr->has_trigger ) {
60 push @code, "\$attr->trigger->( \$instance, \$value, \$attr );";
68 if ( $attr->has_default || $attr->has_builder ) {
69 unless ( $attr->is_lazy ) {
70 my $default = $attr->default;
71 my $builder = $attr->builder;
72 if ($attr->has_builder) {
73 push @code, "my \$value = \$instance->$builder;";
74 } elsif (ref($default) eq 'CODE') {
75 push @code, "my \$value = \$attr->default()->();";
77 push @code, "my \$value = \$attr->default();";
79 if ($attr->should_coerce) {
80 push @code, "\$value = \$attr->coerce_constraint(\$value);";
82 if ($attr->has_type_constraint) {
83 push @code, "\$attr->verify_type_constraint(\$value);";
85 push @code, "\$instance->{'$key'} = \$value;";
86 if ($attr->is_weak_ref) {
87 push @code, "weaken( \$instance->{'$key'} ) if ref( \$instance->{'$key'} );";
93 if ( $attr->is_required ) {
94 qq{Carp::confess("Attribute ($key) is required");};
102 my \$attr = \$attrs[$index];
103 if (exists(\$args->{'$from'})) {
112 return join "\n", @res;
115 sub _generate_BUILDARGS {
118 if ( scalar @_ == 1 ) {
119 if ( defined $_[0] ) {
120 ( ref( $_[0] ) eq 'HASH' )
121 || Carp::confess "Single parameters to new() must be a HASH ref";
135 sub _generate_BUILDALL {
136 my ($class, $meta) = @_;
137 return '' unless $meta->name->can('BUILD');
140 push @code, q{no strict 'refs';};
141 push @code, q{no warnings 'once';};
143 for my $class ($meta->linearized_isa) {
144 if (*{ $class . '::BUILD' }{CODE}) {
145 push @code, qq{${class}::BUILD->(\$instance, \$args);};
148 return join "\n", @code;