X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FMouse%2FMeta%2FMethod%2FConstructor.pm;h=0d5374aa936640d490e4829baa111fc882251966;hb=98a8fd12ede46b22edc10d229680d9d2e8deeade;hp=8e4fa629d271160a27f8900e49df8d446009ef5b;hpb=d990f7911dfd6a36d1dcc072e7adb72bf0379349;p=gitmo%2FMouse.git diff --git a/lib/Mouse/Meta/Method/Constructor.pm b/lib/Mouse/Meta/Method/Constructor.pm index 8e4fa62..0d5374a 100644 --- a/lib/Mouse/Meta/Method/Constructor.pm +++ b/lib/Mouse/Meta/Method/Constructor.pm @@ -1,40 +1,71 @@ package Mouse::Meta::Method::Constructor; use Mouse::Util qw(:meta); # enables strict and warnings -sub _inline_slot{ +sub _inline_create_instance { + my(undef, $class_expr) = @_; + return "bless {}, $class_expr"; +} + +sub _inline_slot { my(undef, $self_var, $attr_name) = @_; return sprintf '%s->{q{%s}}', $self_var, $attr_name; } +sub _inline_has_slot { + my($class, $self_var, $attr_name) = @_; + + return sprintf 'exists(%s)', $class->_inline_slot($self_var, $attr_name); +} + +sub _inline_get_slot { + my($class, $self_var, $attr_name) = @_; + + return $class->_inline_slot($self_var, $attr_name); +} + +sub _inline_set_slot { + my($class, $self_var, $attr_name, $rvalue) = @_; + + return $class->_inline_slot($self_var, $attr_name) . " = $rvalue"; +} + +sub _inline_weaken_slot { + my($class, $self_var, $attr_name) = @_; + + return sprintf 'Scalar::Util::weaken(%s)', $class->_inline_slot($self_var, $attr_name); +} + sub _generate_constructor { my ($class, $metaclass, $args) = @_; - my $associated_metaclass_name = $metaclass->name; - my @attrs = $metaclass->get_all_attributes; - my $buildall = $class->_generate_BUILDALL($metaclass); + my $init_attrs = $class->_generate_processattrs($metaclass, \@attrs); my $buildargs = $class->_generate_BUILDARGS($metaclass); - my $processattrs = $class->_generate_processattrs($metaclass, \@attrs); + my $buildall = $class->_generate_BUILDALL($metaclass); my @checks = map { $_ && $_->_compiled_type_constraint } map { $_->type_constraint } @attrs; - my $source = sprintf("#line %d %s\n", __LINE__, __FILE__).<<"..."; - sub \{ - my \$class = shift; - return \$class->Mouse::Object::new(\@_) - if \$class ne q{$associated_metaclass_name}; + my $class_name = $metaclass->name; + my $source = sprintf(<<'END_CONSTRUCTOR', $class_name, __LINE__, __FILE__, $class_name, $buildargs, $class->_inline_create_instance('$class'), $init_attrs, $buildall); +package %s; +#line %d "constructor of %s (%s)" + sub { + my $class = shift; + return $class->Mouse::Object::new(@_) + if $class ne __PACKAGE__; # BUILDARGS - $buildargs; - my \$instance = bless {}, \$class; + %s; + # create instance + my $instance = %s; # process attributes - $processattrs; + %s; # BUILDALL - $buildall; - return \$instance; + %s; + return $instance; } -... +END_CONSTRUCTOR #warn $source; my $code; my $e = do{ @@ -51,10 +82,9 @@ sub _generate_processattrs { my @res; my $has_triggers; - my $strict_constructor = $metaclass->__strict_constructor; - + my $strict = $metaclass->__strict_constructor; - if($strict_constructor){ + if($strict){ push @res, 'my $used = 0;'; } @@ -69,7 +99,8 @@ sub _generate_processattrs { my $is_weak_ref = $attr->is_weak_ref; my $need_coercion; - my $instance_slot = $method_class->_inline_slot('$instance', $key); + my $instance = '$instance'; + my $instance_slot = $method_class->_inline_get_slot($instance, $key); my $attr_var = "\$attrs[$index]"; my $constraint_var; @@ -86,7 +117,7 @@ sub _generate_processattrs { $post_process .= " or $attr_var->_throw_type_constraint_error($instance_slot, $constraint_var);\n"; } if($is_weak_ref){ - $post_process .= "Scalar::Util::weaken($instance_slot) if ref $instance_slot;\n"; + $post_process .= $method_class->_inline_weaken_slot($instance, $key) . " if ref $instance_slot;\n"; } if (defined $init_arg) { @@ -98,7 +129,7 @@ sub _generate_processattrs { $value = "$constraint_var->coerce($value)"; } - $code .= "$instance_slot = $value;\n"; + $code .= $method_class->_inline_set_slot($instance, $key, $value) . ";\n"; $code .= $post_process; if ($attr->has_trigger) { @@ -106,8 +137,8 @@ sub _generate_processattrs { $code .= "push \@triggers, [$attr_var\->{trigger}, $instance_slot];\n"; } - if ($strict_constructor){ - $code .= '$used++;' . "\n"; + if ($strict){ + $code .= '++$used;' . "\n"; } $code .= "\n} else {\n"; # $value exists @@ -136,9 +167,9 @@ sub _generate_processattrs { $value = "$constraint_var->coerce($value)"; } - $code .= "$instance_slot = $value;\n"; + $code .= $method_class->_inline_set_slot($instance, $key, $value) . ";\n"; if($is_weak_ref){ - $code .= "Scalar::Util::weaken($instance_slot);\n"; + $code .= $method_class->_inline_weaken_slot($instance, $key) . ";\n"; } } } @@ -151,9 +182,9 @@ sub _generate_processattrs { push @res, $code; } - if($strict_constructor){ + if($strict){ push @res, q{if($used < keys %{$args})} - . q{{ Mouse::Meta::Method::Constructor::_report_unknown_args($metaclass, \@attrs, $instance, $args) }}; + . sprintf q{{ %s->_report_unknown_args($metaclass, \@attrs, $args) }}, $method_class; } if($metaclass->is_anon_class){ @@ -204,7 +235,7 @@ sub _generate_BUILDALL { } sub _report_unknown_args { - my($metaclass, $attrs, $instance, $args) = @_; + my(undef, $metaclass, $attrs, $args) = @_; my @unknowns; my %init_args; @@ -223,7 +254,7 @@ sub _report_unknown_args { $metaclass->throw_error( sprintf "Unknown attribute passed to the constructor of %s: %s", - ref($instance), join ', ', @unknowns + $metaclass->name, Mouse::Util::english_list(@unknowns), ); } @@ -236,7 +267,7 @@ Mouse::Meta::Method::Constructor - A Mouse method generator for constructors =head1 VERSION -This document describes Mouse version 0.50_02 +This document describes Mouse version 0.50_05 =head1 SEE ALSO