use Carp 'confess';
-our $VERSION = '0.03';
+our $VERSION = '0.06';
+our $AUTHORITY = 'cpan:STEVAN';
use base 'Moose::Meta::Method',
'Class::MOP::Method::Accessor';
## Inline method generators
sub generate_accessor_method_inline {
- 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))
+ my $self = $_[0];
+ my $attr = $self->associated_attribute;
+ my $attr_name = $attr->name;
+ my $inv = '$_[0]';
+ my $slot_access = $self->_inline_access($inv, $attr_name);
+ my $value_name = $attr->should_coerce ? '$val' : '$_[1]';
+
+ my $code = 'sub { ' . "\n"
+ . $self->_inline_pre_body(@_) . "\n"
+ . 'if (scalar(@_) == 2) {' . "\n"
+ . $self->_inline_check_required . "\n"
+ . $self->_inline_check_coercion . "\n"
+ . $self->_inline_check_constraint($value_name) . "\n"
+ . $self->_inline_store($inv, $value_name) . "\n"
+ . $self->_inline_trigger($inv, $value_name) . "\n"
+ . ' }' . "\n"
+ . $self->_inline_check_lazy . "\n"
+ . $self->_inline_post_body(@_) . "\n"
+ . 'return ' . $self->_inline_auto_deref($self->_inline_get($inv)) . "\n"
. ' }';
-
+
# NOTE:
# set up the environment
- my $type_constraint = $attr->type_constraint
+ 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;
+ return $sub;
}
sub generate_writer_method_inline {
- 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 $self = $_[0];
+ my $attr = $self->associated_attribute;
+ my $attr_name = $attr->name;
+ my $inv = '$_[0]';
+ my $slot_access = $self->_inline_get($inv, $attr_name);
+ my $value_name = $attr->should_coerce ? '$val' : '$_[1]';
+
my $code = 'sub { '
+ . $self->_inline_pre_body(@_)
. $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)
+ . $self->_inline_check_constraint($value_name)
+ . $self->_inline_store($inv, $value_name)
+ . $self->_inline_post_body(@_)
+ . $self->_inline_trigger($inv, $value_name)
. ' }';
-
+
# NOTE:
# set up the environment
- my $type_constraint = $attr->type_constraint
+ my $type_constraint = $attr->type_constraint
? $attr->type_constraint->_compiled_type_constraint
- : undef;
-
+ : undef;
+
my $sub = eval $code;
confess "Could not create writer for '$attr_name' because $@ \n code: $code" if $@;
- return $sub;
+ return $sub;
}
sub generate_reader_method_inline {
- my $self = shift;
- my $attr = $self->associated_attribute;
- my $attr_name = $attr->name;
-
+ my $self = $_[0];
+ my $attr = $self->associated_attribute;
+ my $attr_name = $attr->name;
+ my $inv = '$_[0]';
+ my $slot_access = $self->_inline_get($inv, $attr_name);
+
my $code = 'sub {'
+ . $self->_inline_pre_body(@_)
. 'confess "Cannot assign a value to a read-only accessor" if @_ > 1;'
. $self->_inline_check_lazy
- . 'return ' . $self->_inline_auto_deref( '$_[0]->{$attr_name}' ) . ';'
+ . $self->_inline_post_body(@_)
+ . 'return ' . $self->_inline_auto_deref( $slot_access ) . ';'
. '}';
-
+
# NOTE:
# set up the environment
- my $type_constraint = $attr->type_constraint
+ my $type_constraint = $attr->type_constraint
? $attr->type_constraint->_compiled_type_constraint
- : undef;
-
+ : undef;
+
my $sub = eval $code;
confess "Could not create reader for '$attr_name' because $@ \n code: $code" if $@;
return $sub;
}
-## normal method generators
+sub generate_reader_method { shift->generate_reader_method_inline(@_) }
+sub generate_writer_method { shift->generate_writer_method_inline(@_) }
+sub generate_accessor_method { shift->generate_accessor_method_inline(@_) }
-*generate_reader_method = \&generate_reader_method_inline;
-*generate_writer_method = \&generate_writer_method_inline;
-*generate_accessor_method = \&generate_accessor_method_inline;
-
-## ... private helpers
+sub _inline_pre_body { '' }
+sub _inline_post_body { '' }
sub _inline_check_constraint {
- my ($self, $value) = @_;
-
- my $attr = $self->associated_attribute;
-
- return '' unless $attr->has_type_constraint;
-
- # FIXME - remove 'unless defined($value) - constraint Undef
- return sprintf <<'EOF', $value, $value, $value, $value
+ my ($self, $value) = @_;
+
+ my $attr = $self->associated_attribute;
+
+ return '' unless $attr->has_type_constraint;
+
+ # FIXME
+ # This sprintf is insanely annoying, we should
+ # fix it someday - SL
+ return sprintf <<'EOF', $value, $value, $value, $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")
+ || confess "Attribute (" . $attr->name . ") does not pass the type constraint ("
+ . $attr->type_constraint->name . ") with "
+ . (defined(%s) ? (Scalar::Util::blessed(%s) && overload::Overloaded(%s) ? overload::StrVal(%s) : %s) : "undef")
if defined(%s);
EOF
}
sub _inline_check_coercion {
- my $attr = (shift)->associated_attribute;
-
- return '' unless $attr->should_coerce;
+ my $attr = (shift)->associated_attribute;
+
+ return '' unless $attr->should_coerce;
return 'my $val = $attr->type_constraint->coerce($_[1]);'
}
sub _inline_check_required {
- my $attr = (shift)->associated_attribute;
-
- return '' unless $attr->is_required;
+ my $attr = (shift)->associated_attribute;
+
+ return '' unless $attr->is_required;
return 'defined($_[1]) || confess "Attribute ($attr_name) is required, so cannot be set to undef";'
}
sub _inline_check_lazy {
- my $attr = (shift)->associated_attribute;
-
- return '' unless $attr->is_lazy;
-
- if ($attr->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]);' .
+ my $self = $_[0];
+ my $attr = $self->associated_attribute;
+
+ return '' unless $attr->is_lazy;
+
+ my $inv = '$_[0]';
+ my $slot_access = $self->_inline_access($inv, $attr->name);
+ my $slot_exists = $self->_inline_has($inv, $attr->name);
+ if ($attr->has_type_constraint) {
+ # NOTE:
+ # this could probably be cleaned
+ # up and streamlined a little more
+ return 'unless (' . $slot_exists . ') {' .
+ ' if ($attr->has_default || $attr->has_builder ) {' .
+ ' my $default; '.
+ ' $default = $attr->default(' . $inv . ') if $attr->has_default;' .
+ ' if ( $attr->has_builder ) { '.
+ ' my $builder = $attr->builder;'.
+ ' if($builder = '.$inv.'->can($builder)){ '.
+ ' $default = '.$inv.'->$builder; '.
+ ' } else { '.
+ ' confess(blessed('.$inv.')." does not support builder method \'$builder\' for attribute \'" . $attr->name . "\'");'.
+ ' }'.
+ ' }'.
+ ($attr->should_coerce
+ ? '$default = $attr->type_constraint->coerce($default);'
+ : '') .
' (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};';
+ ' || confess "Attribute (" . $attr->name . ") does not pass the type constraint ("' .
+ ' . $attr->type_constraint->name . ") with " . (defined($default) ? (Scalar::Util::blessed($default) && overload::Overloaded($default) ? overload::StrVal($default) : $default) : "undef")' .
+ ' if defined($default);' .
+ ' ' . $slot_access . ' = $default; ' .
+ ' }' .
+ ' else {' .
+ ' ' . $slot_access . ' = undef;' .
+ ' }' .
+ '}';
+ }
+
+ return 'unless ( ' . $slot_exists . ') {' .
+ ' if ($attr->has_default) { ' . $slot_access . ' = $attr->default(' . $inv . '); }' .
+ ' elsif ($attr->has_builder) { '.
+ ' my $builder = $attr->builder; ' .
+ ' if($builder = '.$inv.'->can($builder)){ '.
+ ' ' . $slot_access . ' = ' . $inv . '->$builder; '.
+ ' } else { '.
+ ' confess(blessed('.$inv.')." does not support builder method \'$builder\' for attribute \'" . $attr->name . "\'");'.
+ ' }'.
+ ' } else { ' .$slot_access . ' = undef; } '.
+ '}';
}
sub _inline_store {
- my ($self, $instance, $value) = @_;
- my $attr = $self->associated_attribute;
+ my ($self, $instance, $value) = @_;
+ my $attr = $self->associated_attribute;
- my $mi = $attr->associated_class->get_meta_instance;
- my $slot_name = sprintf "'%s'", $attr->slots;
+ my $mi = $attr->associated_class->get_meta_instance;
+ my $slot_name = sprintf "'%s'", $attr->slots;
my $code = $mi->inline_set_slot_value($instance, $slot_name, $value) . ";";
- $code .= $mi->inline_weaken_slot_value($instance, $slot_name, $value) . ";"
- if $attr->is_weak_ref;
+ $code .= $mi->inline_weaken_slot_value($instance, $slot_name, $value) . ";"
+ if $attr->is_weak_ref;
return $code;
}
sub _inline_trigger {
- my ($self, $instance, $value) = @_;
- my $attr = $self->associated_attribute;
- return '' unless $attr->has_trigger;
- return sprintf('$attr->trigger->(%s, %s, $attr);', $instance, $value);
+ my ($self, $instance, $value) = @_;
+ my $attr = $self->associated_attribute;
+ return '' unless $attr->has_trigger;
+ return sprintf('$attr->trigger->(%s, %s, $attr);', $instance, $value);
}
sub _inline_get {
- my ($self, $instance) = @_;
- my $attr = $self->associated_attribute;
+ my ($self, $instance) = @_;
+ my $attr = $self->associated_attribute;
- my $mi = $attr->associated_class->get_meta_instance;
- my $slot_name = sprintf "'%s'", $attr->slots;
+ my $mi = $attr->associated_class->get_meta_instance;
+ my $slot_name = sprintf "'%s'", $attr->slots;
return $mi->inline_get_slot_value($instance, $slot_name);
}
+sub _inline_access {
+ my ($self, $instance) = @_;
+ my $attr = $self->associated_attribute;
+
+ my $mi = $attr->associated_class->get_meta_instance;
+ my $slot_name = sprintf "'%s'", $attr->slots;
+
+ return $mi->inline_slot_access($instance, $slot_name);
+}
+
+sub _inline_has {
+ my ($self, $instance) = @_;
+ my $attr = $self->associated_attribute;
+
+ my $mi = $attr->associated_class->get_meta_instance;
+ my $slot_name = sprintf "'%s'", $attr->slots;
+
+ return $mi->inline_is_slot_initialized($instance, $slot_name);
+}
+
sub _inline_auto_deref {
my ( $self, $ref_value ) = @_;
- my $attr = $self->associated_attribute;
+ my $attr = $self->associated_attribute;
return $ref_value unless $attr->should_auto_deref;
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 . "'";
}
=head1 DESCRIPTION
-This is a subclass of L<Class::MOP::Method::Accessor> and it's primary
-responsibility is to generate the accessor methods for attributes. It
+This is a subclass of L<Class::MOP::Method::Accessor> and it's primary
+responsibility is to generate the accessor methods for attributes. It
can handle both closure based accessors, as well as inlined source based
-accessors.
+accessors.
This is a fairly new addition to the MOP, but this will play an important
role in the optimization strategy we are currently following.
=head1 BUGS
-All complex software has bugs lurking in it, and this module is no
+All complex software has bugs lurking in it, and this module is no
exception. If you find a bug please either email me, or add the bug
to cpan-RT.
=head1 COPYRIGHT AND LICENSE
-Copyright 2006 by Infinity Interactive, Inc.
+Copyright 2006, 2007 by Infinity Interactive, Inc.
L<http://www.iinteractive.com>
This library is free software; you can redistribute it and/or modify
it under the same terms as Perl itself.
-=cut
\ No newline at end of file
+=cut
projects / gitmo/Moose.git / blobdiff