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{
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;';
}
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;
$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) {
$value = "$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) {
$code .= "push \@triggers, [$attr_var\->{trigger}, $instance_slot];\n";
}
- if ($strict_constructor){
- $code .= '$used++;' . "\n";
+ if ($strict){
+ $code .= '++$used;' . "\n";
}
$code .= "\n} else {\n"; # $value exists
$value = "$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";
}
}
}
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){
}
sub _report_unknown_args {
- my($metaclass, $attrs, $instance, $args) = @_;
+ my(undef, $metaclass, $attrs, $args) = @_;
my @unknowns;
my %init_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),
);
}
=head1 VERSION
-This document describes Mouse version 0.50_02
+This document describes Mouse version 0.50_05
=head1 SEE ALSO