our $VERSION = '0.01';
use base 'Moose::Meta::Method';
-# 'Class::MOP::Method::Accessor';
+ 'Class::MOP::Method::Accessor';
+
+## generators
+
+sub generate_predicate_method {
+ my $self = shift;
+ my $attr = $self->associated_attribute;
+ my $attr_name = $attr->name;
+}
+
+sub generate_clearer_method {
+ my $self = shift;
+ my $attr = $self->associated_attribute;
+ my $attr_name = $attr->name;
+}
+
+sub generate_accessor_method {
+ my $self = shift;
+ my $attr = $self->associated_attribute;
+ my $attr_name = $attr->name;
+
+ my $value_name = $attr->should_coerce ? '$val' : '$_[1]';
+ my $mi = $attr->associated_class->get_meta_instance;
+ my $slot_name = sprintf "'%s'", $attr->slots;
+ my $inv = '$_[0]';
+ my $code = 'sub { '
+ . 'if (scalar(@_) == 2) {'
+ . $self->_inline_check_required
+ . $self->_inline_check_coercion
+ . $self->_inline_check_constraint($value_name)
+ . $self->_inline_store($inv, $value_name)
+ . $self->_inline_trigger($inv, $value_name)
+ . ' }'
+ . $self->_inline_check_lazy
+ . 'return ' . $self->_inline_auto_deref($self->_inline_get($inv))
+ . ' }';
+
+ # NOTE:
+ # set up the environment
+ my $type_constraint = $attr->type_constraint
+ ? $attr->type_constraint->_compiled_type_constraint
+ : undef;
+
+ my $sub = eval $code;
+ confess "Could not create accessor for '$attr_name' because $@ \n code: $code" if $@;
+ return $sub;
+}
+
+sub generate_writer_method {
+ my $self = shift;
+ my $attr = $self->associated_attribute;
+ my $attr_name = $attr->name;
+
+ my $value_name = $attr->should_coerce ? '$val' : '$_[1]';
+ my $inv = '$_[0]';
+ my $code = 'sub { '
+ . $self->_inline_check_required
+ . $self->_inline_check_coercion
+ . $self->_inline_check_constraint($value_name)
+ . $self->_inline_store($inv, $value_name)
+ . $self->_inline_trigger($inv, $value_name)
+ . ' }';
+
+ # NOTE:
+ # set up the environment
+ my $type_constraint = $attr->type_constraint
+ ? $attr->type_constraint->_compiled_type_constraint
+ : undef;
+
+ my $sub = eval $code;
+ confess "Could not create writer for '$attr_name' because $@ \n code: $code" if $@;
+ return $sub;
+}
+
+sub generate_reader_method {
+ my $self = shift;
+ my $attr = $self->associated_attribute;
+ my $attr_name = $attr->name;
+
+ my $attr_name = $attr->slots;
+ my $code = 'sub {'
+ . 'confess "Cannot assign a value to a read-only accessor" if @_ > 1;'
+ . $self->_inline_check_lazy
+ . 'return ' . $self->_inline_auto_deref( '$_[0]->{$attr_name}' ) . ';'
+ . '}';
+ my $sub = eval $code;
+ confess "Could not create reader for '$attr_name' because $@ \n code: $code" if $@;
+ return $sub;
+}
+
+## Inline methods
+
+sub generate_accessor_method_inline {
+ my $self = shift;
+ my $attr = $self->associated_attribute;
+ my $attr_name = $attr->name;
+ my $meta_instance = $attr->associated_class->instance_metaclass;
+}
+
+sub generate_reader_method_inline {
+ my $self = shift;
+ my $attr = $self->associated_attribute;
+ my $attr_name = $attr->name;
+ my $meta_instance = $attr->associated_class->instance_metaclass;
+}
+
+sub generate_writer_method_inline {
+ my $self = shift;
+ my $attr = $self->associated_attribute;
+ my $attr_name = $attr->name;
+ my $meta_instance = $attr->associated_class->instance_metaclass;
+}
+
+
+sub generate_predicate_method_inline {
+ my $self = shift;
+ my $attr = $self->associated_attribute;
+ my $attr_name = $attr->name;
+ my $meta_instance = $attr->associated_class->instance_metaclass;
+}
+
+sub generate_clearer_method_inline {
+ my $self = shift;
+ my $attr = $self->associated_attribute;
+ my $attr_name = $attr->name;
+ my $meta_instance = $attr->associated_class->instance_metaclass;
+}
+
+##
+
+
+sub _inline_check_constraint {
+ my ($self, $value) = @_;
+ return '' unless $self->has_type_constraint;
+
+ # FIXME - remove 'unless defined($value) - constraint Undef
+ return sprintf <<'EOF', $value, $value, $value, $value
+defined($type_constraint->(%s))
+ || confess "Attribute (" . $attr->name . ") does not pass the type constraint ("
+ . $attr->type_constraint->name . ") with " . (defined(%s) ? "'%s'" : "undef")
+ if defined(%s);
+EOF
+}
+
+sub _inline_check_coercion {
+ my $self = shift;
+ return '' unless $self->should_coerce;
+ return 'my $val = $attr->type_constraint->coerce($_[1]);'
+}
+
+sub _inline_check_required {
+ my $self = shift;
+ return '' unless $self->is_required;
+ return 'defined($_[1]) || confess "Attribute ($attr_name) is required, so cannot be set to undef";'
+}
+
+sub _inline_check_lazy {
+ my $self = shift;
+ return '' unless $self->is_lazy;
+ if ($self->has_type_constraint) {
+ # NOTE:
+ # this could probably be cleaned
+ # up and streamlined a little more
+ return 'unless (exists $_[0]->{$attr_name}) {' .
+ ' if ($attr->has_default) {' .
+ ' my $default = $attr->default($_[0]);' .
+ ' (defined($type_constraint->($default)))' .
+ ' || confess "Attribute (" . $attr->name . ") does not pass the type constraint ("' .
+ ' . $attr->type_constraint->name . ") with " . (defined($default) ? "\'$default\'" : "undef")' .
+ ' if defined($default);' .
+ ' $_[0]->{$attr_name} = $default; ' .
+ ' }' .
+ ' else {' .
+ ' $_[0]->{$attr_name} = undef;' .
+ ' }' .
+ '}';
+ }
+ return '$_[0]->{$attr_name} = ($attr->has_default ? $attr->default($_[0]) : undef)'
+ . 'unless exists $_[0]->{$attr_name};';
+}
+
+
+sub _inline_store {
+ my ($self, $instance, $value) = @_;
+
+ my $mi = $self->associated_class->get_meta_instance;
+ my $slot_name = sprintf "'%s'", $self->slots;
+
+ my $code = $mi->inline_set_slot_value($instance, $slot_name, $value) . ";";
+ $code .= $mi->inline_weaken_slot_value($instance, $slot_name, $value) . ";"
+ if $self->is_weak_ref;
+ return $code;
+}
+
+sub _inline_trigger {
+ my ($self, $instance, $value) = @_;
+ return '' unless $self->has_trigger;
+ return sprintf('$attr->trigger->(%s, %s, $attr);', $instance, $value);
+}
+
+sub _inline_get {
+ my ($self, $instance) = @_;
+
+ my $mi = $self->associated_class->get_meta_instance;
+ my $slot_name = sprintf "'%s'", $self->slots;
+
+ return $mi->inline_get_slot_value($instance, $slot_name);
+}
+
+sub _inline_auto_deref {
+ my ( $self, $ref_value ) = @_;
+
+ return $ref_value unless $self->should_auto_deref;
+
+ my $type_constraint = $self->type_constraint;
+
+ my $sigil;
+ if ($type_constraint->is_a_type_of('ArrayRef')) {
+ $sigil = '@';
+ }
+ elsif ($type_constraint->is_a_type_of('HashRef')) {
+ $sigil = '%';
+ }
+ else {
+ confess "Can not auto de-reference the type constraint '" . $type_constraint->name . "'";
+ }
+
+ "(wantarray() ? $sigil\{ ( $ref_value ) || return } : ( $ref_value ) )";
+}
1;
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