1 package Moose::Meta::Method::Accessor::Native::Writer;
6 use List::MoreUtils qw( any );
9 $VERSION = eval $VERSION;
10 our $AUTHORITY = 'cpan:STEVAN';
14 with 'Moose::Meta::Method::Accessor::Native';
16 requires '_potential_value';
18 sub _generate_method {
23 my $slot_access = $self->_inline_get($inv);
27 $code .= "\n" . $self->_inline_pre_body(@_);
29 $code .= "\n" . 'my $self = shift;';
31 $code .= "\n" . $self->_inline_curried_arguments;
33 $code .= $self->_writer_core( $inv, $slot_access );
35 $code .= "\n" . $self->_inline_post_body(@_);
43 my ( $self, $inv, $slot_access ) = @_;
47 $code .= "\n" . $self->_inline_check_argument_count;
48 $code .= "\n" . $self->_inline_process_arguments( $inv, $slot_access );
49 $code .= "\n" . $self->_inline_check_arguments('for writer');
51 $code .= "\n" . $self->_inline_check_lazy($inv);
53 my $potential_value = $self->_potential_value($slot_access);
55 $code .= "\n" . $self->_inline_copy_native_value( \$potential_value );
57 . $self->_inline_tc_code(
61 $code .= "\n" . $self->_inline_get_old_value_for_trigger($inv);
62 $code .= "\n" . $self->_inline_capture_return_value($slot_access);
64 . $self->_inline_set_new_value(
69 $code .= "\n" . $self->_inline_trigger( $inv, $slot_access, '@old' );
70 $code .= "\n" . $self->_return_value( $slot_access, 'for writer' );
75 sub _inline_process_arguments {q{}}
77 sub _inline_check_arguments {q{}}
79 sub _value_needs_copy {
82 return $self->_constraint_must_be_checked;
85 sub _constraint_must_be_checked {
88 my $attr = $self->associated_attribute;
90 return $attr->has_type_constraint
91 && ( !$self->_is_root_type( $attr->type_constraint )
92 || ( $attr->should_coerce && $attr->type_constraint->has_coercion ) );
96 my ($self, $type) = @_;
98 my $name = $type->name();
100 return any { $name eq $_ } @{ $self->root_types };
103 sub _inline_copy_native_value {
104 my ( $self, $potential_ref ) = @_;
106 return q{} unless $self->_value_needs_copy;
108 my $code = "my \$potential = ${$potential_ref};";
110 ${$potential_ref} = '$potential';
115 sub _inline_tc_code {
116 my ( $self, $potential_value ) = @_;
118 return q{} unless $self->_constraint_must_be_checked;
120 return $self->_inline_check_coercion($potential_value) . "\n"
121 . $self->_inline_check_constraint($potential_value);
124 sub _inline_check_coercion {
125 my ( $self, $value ) = @_;
127 my $attr = $self->associated_attribute;
130 unless $attr->should_coerce && $attr->type_constraint->has_coercion;
132 # We want to break the aliasing in @_ in case the coercion tries to make a
133 # destructive change to an array member.
134 return "$value = \$type_constraint_obj->coerce($value);";
137 override _inline_check_constraint => sub {
140 return q{} unless $self->_constraint_must_be_checked;
145 sub _inline_capture_return_value { return q{} }
147 sub _inline_set_new_value {
150 return $self->_inline_store(@_)
151 if $self->_value_needs_copy || !$self->_slot_access_can_be_inlined;
153 return $self->_inline_optimized_set_new_value(@_);
156 sub _inline_optimized_set_new_value {
159 return $self->_inline_store(@_);
162 sub _return_value { return q{} }