added BUILDARGS support

[gitmo/Role-Tiny.git] / lib / Method / Generate / Constructor.pm

diff --git a/lib/Method/Generate/Constructor.pm b/lib/Method/Generate/Constructor.pm
index b08385d..23d9c03 100644 (file)
--- a/lib/Method/Generate/Constructor.pm
+++ b/lib/Method/Generate/Constructor.pm
@@ -2,12 +2,27 @@ package Method::Generate::Constructor;
 
 use strictures 1;
 use Sub::Quote;
-use base qw(Class::Tiny::Object);
+use base qw(Moo::Object);
 use Sub::Defer;
+use B 'perlstring';
 
-sub register_attribute_spec {
-  my ($self, $name, $spec) = @_;
-  $self->{attribute_specs}{$name} = $spec;
+sub register_attribute_specs {
+  my ($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 {
@@ -26,37 +41,81 @@ sub generate_method {
   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";
+  $body .= $self->_handle_subconstructor($into, $name);
   $body .= $self->_generate_args;
   $body .= $self->_check_required($spec);
-  $body .= '    my $new = bless({}, $class);'."\n";
+  $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 $new;'."\n";
   quote_sub
     "${into}::${name}" => $body,
-    (ref($quote_opts) ? ({}, $quote_opts) : ())
+    $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;
+  $code;
+}
+
 sub _generate_args {
   my ($self) = @_;
-  q{    my $args = ref($_[0]) eq 'HASH' ? $_[0] : { @_ };}."\n";
+  q{    my $args = $class->BUILDARGS(@_);}."\n";
 }
 
 sub _assign_new {
   my ($self, $spec) = @_;
-  my (@init, @slots);
-  NAME: foreach my $name (keys %$spec) {
+  my (@init, @slots, %test);
+  my $ag = $self->accessor_generator;
+  NAME: foreach my $name (sort keys %$spec) {
     my $attr_spec = $spec->{$name};
-    push @init, do {
-      next NAME unless defined(my $i = $attr_spec->{init_arg});
-      $i;
-    };
+    unless ($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, $name;
   }
-  return '' unless @init;
-  '    @{$new}{qw('.join(' ',@slots).')} = @{$args}{qw('.join(' ',@init).')};'
-    ."\n";
+  return '' unless @init or %test;
+  join '', (
+    @init
+      ? '    '.$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 {
@@ -64,7 +123,7 @@ sub _check_required {
   my @required_init =
     map $spec->{$_}{init_arg},
       grep $spec->{$_}{required},
-        keys %$spec;
+        sort keys %$spec;
   return '' unless @required_init;
   '    if (my @missing = grep !exists $args->{$_}, qw('
     .join(' ',@required_init).')) {'."\n"
@@ -72,4 +131,44 @@ sub _check_required {
     ."    }\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;