+++ /dev/null
-package Method::Generate::Constructor;
-
-use strictures 1;
-use Sub::Quote;
-use base qw(Moo::Object);
-use Sub::Defer;
-use B 'perlstring';
-
-sub register_attribute_specs {
- my ($self, %spec) = @_;
- @{$self->{attribute_specs}||={}}{keys %spec} = values %spec;
- $self;
-}
-
-sub all_attribute_specs {
- $_[0]->{attribute_specs}
-}
-
-sub accessor_generator {
- $_[0]->{accessor_generator}
-}
-
-sub construction_string {
- my ($self) = @_;
- $self->{construction_string} or 'bless({}, $class);'
-}
-
-sub install_delayed {
- my ($self) = @_;
- my $package = $self->{package};
- defer_sub "${package}::new" => sub {
- unquote_sub $self->generate_method(
- $package, 'new', $self->{attribute_specs}, { no_install => 1 }
- )
- };
- $self;
-}
-
-sub generate_method {
- my ($self, $into, $name, $spec, $quote_opts) = @_;
- foreach my $no_init (grep !exists($spec->{$_}{init_arg}), keys %$spec) {
- $spec->{$no_init}{init_arg} = $no_init;
- }
- local $self->{captures} = {};
- my $body = ' my $class = shift;'."\n"
- .' $class = ref($class) if ref($class);'."\n";
- $body .= $self->_handle_subconstructor($into, $name);
- my $into_buildargs = $into->can('BUILDARGS');
- if ( $into_buildargs && $into_buildargs != \&Moo::Object::BUILDARGS ) {
- $body .= $self->_generate_args_via_buildargs;
- } else {
- $body .= $self->_generate_args;
- }
- $body .= $self->_check_required($spec);
- $body .= ' my $new = '.$self->construction_string.";\n";
- $body .= $self->_assign_new($spec);
- if ($into->can('BUILD')) {
- require Method::Generate::BuildAll;
- $body .= Method::Generate::BuildAll->new->buildall_body_for(
- $into, '$new', '$args'
- );
- }
- $body .= ' return $new;'."\n";
- if ($into->can('DEMOLISH')) {
- require Method::Generate::DemolishAll;
- Method::Generate::DemolishAll->new->generate_method($into);
- }
- quote_sub
- "${into}::${name}" => $body,
- $self->{captures}, $quote_opts||{}
- ;
-}
-
-sub _handle_subconstructor {
- my ($self, $into, $name) = @_;
- if (my $gen = $self->{subconstructor_generator}) {
- ' if ($class ne '.perlstring($into).') {'."\n".
- ' '.$gen.";\n".
- ' return $class->'.$name.'(@_)'.";\n".
- ' }'."\n";
- } else {
- ''
- }
-}
-
-sub _cap_call {
- my ($self, $code, $captures) = @_;
- @{$self->{captures}}{keys %$captures} = values %$captures if $captures;
- $code;
-}
-
-sub _generate_args_via_buildargs {
- my ($self) = @_;
- q{ my $args = $class->BUILDARGS(@_);}."\n";
-}
-
-# inlined from Moo::Object - update that first.
-sub _generate_args {
- my ($self) = @_;
- return <<'_EOA';
- my $args;
- if ( scalar @_ == 1 ) {
- unless ( defined $_[0] && ref $_[0] eq 'HASH' ) {
- die "Single parameters to new() must be a HASH ref"
- ." data => ". $_[0] ."\n";
- }
- $args = { %{ $_[0] } };
- }
- elsif ( @_ % 2 ) {
- die "The new() method for $class expects a hash reference or a key/value list."
- . " You passed an odd number of arguments\n";
- }
- else {
- $args = {@_};
- }
-_EOA
-
-}
-
-sub _assign_new {
- my ($self, $spec) = @_;
- my (@init, @slots, %test);
- my $ag = $self->accessor_generator;
- NAME: foreach my $name (sort keys %$spec) {
- my $attr_spec = $spec->{$name};
- unless ($ag->is_simple_attribute($name, $attr_spec)) {
- next NAME unless defined($attr_spec->{init_arg})
- or $ag->has_eager_default($name, $attr_spec);
- $test{$name} = $attr_spec->{init_arg};
- next NAME;
- }
- next NAME unless defined(my $i = $attr_spec->{init_arg});
- push @init, $i;
- push @slots, $name;
- }
- return '' unless @init or %test;
- join '', (
- @init
- ? ' '.$self->_cap_call($ag->generate_multi_set(
- '$new', [ @slots ], '@{$args}{qw('.join(' ',@init).')}'
- )).";\n"
- : ''
- ), map {
- my $arg_key = perlstring($test{$_});
- my $test = "exists \$args->{$arg_key}";
- my $source = "\$args->{$arg_key}";
- my $attr_spec = $spec->{$_};
- $self->_cap_call($ag->generate_populate_set(
- '$new', $_, $attr_spec, $source, $test
- ));
- } sort keys %test;
-}
-
-sub _check_required {
- my ($self, $spec) = @_;
- my @required_init =
- map $spec->{$_}{init_arg},
- grep $spec->{$_}{required},
- sort keys %$spec;
- return '' unless @required_init;
- ' if (my @missing = grep !exists $args->{$_}, qw('
- .join(' ',@required_init).')) {'."\n"
- .q{ die "Missing required arguments: ".join(', ', sort @missing);}."\n"
- ." }\n";
-}
-
-sub _check_isa {
- my ($self, $spec) = @_;
- my $acc = $self->accessor_generator;
- my $captures = $self->{captures};
- my $check = '';
- foreach my $name (sort keys %$spec) {
- my ($init, $isa) = @{$spec->{$name}}{qw(init_arg isa)};
- next unless $init and $isa;
- my $init_str = perlstring($init);
- my ($code, $add_captures) = $acc->generate_isa_check(
- $name, "\$args->{${init_str}}", $isa
- );
- @{$captures}{keys %$add_captures} = values %$add_captures;
- $check .= " ${code}".(
- (not($spec->{lazy}) and ($spec->{default} or $spec->{builder})
- ? ";\n"
- : "if exists \$args->{${init_str}};\n"
- )
- );
- }
- return $check;
-}
-
-sub _fire_triggers {
- my ($self, $spec) = @_;
- my $acc = $self->accessor_generator;
- my $captures = $self->{captures};
- my $fire = '';
- foreach my $name (sort keys %$spec) {
- my ($init, $trigger) = @{$spec->{$name}}{qw(init_arg trigger)};
- next unless $init && $trigger;
- my ($code, $add_captures) = $acc->generate_trigger(
- $name, '$new', $acc->generate_simple_get('$new', $name), $trigger
- );
- @{$captures}{keys %$add_captures} = values %$add_captures;
- $fire .= " ${code} if exists \$args->{${\perlstring $init}};\n";
- }
- return $fire;
-}
-
-1;
projects / gitmo/Role-Tiny.git / blobdiff