sub _error_thrower {
my $self = shift;
- ( ref $self && $self->associated_attribute ) || $self->SUPER::_error_thrower();
+ return $self->associated_attribute
+ if ref($self) && defined($self->associated_attribute);
+ return $self->SUPER::_error_thrower;
}
sub _eval_code {
- my ( $self, $source ) = @_;
+ my $self = shift;
+ my $source = join "\n", @_;
my $environment = $self->_eval_environment;
- my ( $code, $e ) = $self->_compile_code( environment => $environment, code => $source );
+ my ( $code, $e ) = $self->_compile_code(
+ environment => $environment,
+ code => $source
+ );
$self->throw_error(
- "Could not create writer for '${\$self->associated_attribute->name}' because $e \n code: $source",
- error => $e, data => $source )
- if $e;
+ "Could not create writer for '" . $self->associated_attribute->name
+ . "' because: $e\ncode: $source",
+ error => $e,
+ data => $source,
+ ) if $e;
return $code;
}
'$type_constraint_obj' => \$type_constraint_obj,
'$type_constraint' => \(
$type_constraint_obj
- ? $type_constraint_obj->_compiled_type_constraint
- : undef
+ ? $type_constraint_obj->_compiled_type_constraint
+ : undef
),
};
}
sub _generate_accessor_method_inline {
- my $self = $_[0];
+ my $self = shift;
+
my $inv = '$_[0]';
- my $value_name = $self->_value_needs_copy ? '$val' : '$_[1]';
-
- $self->_eval_code('sub { ' . "\n"
- . $self->_inline_pre_body(@_) . "\n"
- . 'if (scalar(@_) >= 2) {' . "\n"
- . $self->_inline_copy_value . "\n"
- . $self->_inline_check_required . "\n"
- . $self->_inline_check_coercion($value_name) . "\n"
- . $self->_inline_check_constraint($value_name) . "\n"
- . $self->_inline_get_old_value_for_trigger($inv, $value_name) . "\n"
- . $self->_inline_store($inv, $value_name) . "\n"
- . $self->_inline_trigger($inv, $value_name, '@old') . "\n"
- . ' }' . "\n"
- . $self->_inline_check_lazy($inv) . "\n"
- . $self->_inline_post_body(@_) . "\n"
- . 'return ' . $self->_inline_auto_deref($self->_inline_get($inv)) . "\n"
- . ' }');
+ my $slot_access = $self->_inline_get($inv);
+ my $value = $self->_value_needs_copy ? '$val' : '$_[1]';
+ my $old = '@old';
+ my $default = '$default';
+
+ $self->_eval_code(
+ 'sub {',
+ $self->_inline_pre_body(@_),
+ 'if (scalar(@_) >= 2) {',
+ $self->_inline_copy_value($value),
+ $self->_inline_check_required,
+ $self->_inline_check_coercion($value),
+ $self->_inline_check_constraint($value),
+ $self->_inline_get_old_value_for_trigger($inv, $old),
+ $self->_inline_store($inv, $value),
+ $self->_inline_trigger($inv, $value, $old),
+ '}',
+ $self->_inline_check_lazy($inv, $default),
+ $self->_inline_post_body(@_),
+ 'return ' . $self->_inline_auto_deref($slot_access) . ';',
+ '}',
+ );
}
sub _generate_writer_method_inline {
- my $self = $_[0];
- my $inv = '$_[0]';
- my $value_name = $self->_value_needs_copy ? '$val' : '$_[1]';
-
- $self->_eval_code('sub { '
- . $self->_inline_pre_body(@_)
- . $self->_inline_copy_value
- . $self->_inline_check_required
- . $self->_inline_check_coercion($value_name)
- . $self->_inline_check_constraint($value_name)
- . $self->_inline_get_old_value_for_trigger($inv, $value_name) . "\n"
- . $self->_inline_store($inv, $value_name)
- . $self->_inline_post_body(@_)
- . $self->_inline_trigger($inv, $value_name, '@old')
- . ' }');
+ my $self = shift;
+
+ my $inv = '$_[0]';
+ my $value = $self->_value_needs_copy ? '$val' : '$_[1]';
+ my $old = '@old';
+
+ $self->_eval_code(
+ 'sub {',
+ $self->_inline_pre_body(@_),
+ $self->_inline_copy_value($value),
+ $self->_inline_check_required,
+ $self->_inline_check_coercion($value),
+ $self->_inline_check_constraint($value),
+ $self->_inline_get_old_value_for_trigger($inv, $old),
+ $self->_inline_store($inv, $value),
+ $self->_inline_post_body(@_),
+ $self->_inline_trigger($inv, $value, $old),
+ '}',
+ );
}
sub _generate_reader_method_inline {
- my $self = $_[0];
+ my $self = shift;
+
my $inv = '$_[0]';
my $slot_access = $self->_inline_get($inv);
-
- $self->_eval_code('sub {'
- . $self->_inline_pre_body(@_)
- . $self->_inline_throw_error('"Cannot assign a value to a read-only accessor"', 'data => \@_') . ' if @_ > 1;'
- . $self->_inline_check_lazy($inv)
- . $self->_inline_post_body(@_)
- . 'return ' . $self->_inline_auto_deref( $slot_access ) . ';'
- . '}');
+ my $default = '$default';
+
+ $self->_eval_code(
+ 'sub {',
+ $self->_inline_pre_body(@_),
+ 'if (@_ > 1) {',
+ $self->_inline_throw_error(
+ '"Cannot assign a value to a read-only accessor"',
+ 'data => \@_'
+ ) . ';',
+ '}',
+ $self->_inline_check_lazy($inv, $default),
+ $self->_inline_post_body(@_),
+ 'return ' . $self->_inline_auto_deref($slot_access) . ';',
+ '}',
+ );
}
sub _inline_copy_value {
- return '' unless shift->_value_needs_copy;
- return 'my $val = $_[1];'
+ my $self = shift;
+ my ($value) = @_;
+
+ return '' unless $self->_value_needs_copy;
+ return 'my ' . $value . ' = $_[1];'
}
sub _value_needs_copy {
- my $attr = (shift)->associated_attribute;
- return $attr->should_coerce;
+ my $self = shift;
+ return $self->associated_attribute->should_coerce;
}
sub _instance_is_inlinable {
sub _inline_post_body { '' }
sub _inline_check_constraint {
- my ($self, $value) = @_;
+ my $self = shift;
+ my ($value) = @_;
my $attr = $self->associated_attribute;
-
return '' unless $attr->has_type_constraint;
my $attr_name = quotemeta( $attr->name );
- qq{\$type_constraint->($value) || } . $self->_inline_throw_error(qq{"Attribute ($attr_name) does not pass the type constraint because: " . \$type_constraint_obj->get_message($value)}, "data => $value") . ";";
+ return 'if (!$type_constraint->(' . $value . ')) {',
+ $self->_inline_throw_error(
+ '"Attribute (' . $attr_name . ') does not pass the type '
+ . 'constraint because: " . '
+ . '$type_constraint_obj->get_message(' . $value . ')',
+ 'data => ' . $value
+ ) . ';',
+ '}';
}
sub _inline_check_coercion {
- my ($self, $value) = @_;
+ my $self = shift;
+ my ($value) = @_;
my $attr = $self->associated_attribute;
+ return '' unless $attr->should_coerce
+ && $attr->type_constraint->has_coercion;
- return '' unless $attr->should_coerce && $attr->type_constraint->has_coercion;
- return "$value = \$type_constraint_obj->coerce($value);";
+ return $value . ' = $type_constraint_obj->coerce(' . $value . ');';
}
sub _inline_check_required {
my $self = shift;
- my $attr = $self->associated_attribute;
+ my $attr = $self->associated_attribute;
return '' unless $attr->is_required;
my $attr_name = quotemeta( $attr->name );
- return qq{(\@_ >= 2) || } . $self->_inline_throw_error(qq{"Attribute ($attr_name) is required, so cannot be set to undef"}) . ';' # defined $_[1] is not good enough
+ return 'if (@_ < 2) {',
+ $self->_inline_throw_error(
+ '"Attribute (' . $attr_name . ') is required, so cannot '
+ . 'be set to undef"' # defined $_[1] is not good enough
+ ) . ';',
+ '}';
}
sub _inline_check_lazy {
- my ($self, $instance) = @_;
+ my $self = shift;
+ my ($instance, $default) = @_;
my $attr = $self->associated_attribute;
-
return '' unless $attr->is_lazy;
my $slot_exists = $self->_inline_has($instance);
- my $code = 'unless (' . $slot_exists . ') {' . "\n";
- if ($attr->has_type_constraint) {
- if ($attr->has_default || $attr->has_builder) {
- if ($attr->has_default) {
- $code .= ' my $default = $attr->default(' . $instance . ');'."\n";
- }
- elsif ($attr->has_builder) {
- $code .= ' my $default;'."\n".
- ' if(my $builder = '.$instance.'->can($attr->builder)){ '."\n".
- ' $default = '.$instance.'->$builder; '. "\n } else {\n" .
- ' ' . $self->_inline_throw_error(q{sprintf "%s does not support builder method '%s' for attribute '%s'", ref(} . $instance . ') || '.$instance.', $attr->builder, $attr->name') .
- ';'. "\n }";
- }
- $code .= $self->_inline_check_coercion('$default') . "\n";
- $code .= $self->_inline_check_constraint('$default') . "\n";
- $code .= ' ' . $self->_inline_init_slot($attr, $instance, '$default') . "\n";
- }
- else {
- $code .= ' ' . $self->_inline_init_slot($attr, $instance, 'undef') . "\n";
- }
-
- } else {
- if ($attr->has_default) {
- $code .= ' ' . $self->_inline_init_slot($attr, $instance, ('$attr->default(' . $instance . ')')) . "\n";
- }
- elsif ($attr->has_builder) {
- $code .= ' if (my $builder = '.$instance.'->can($attr->builder)) { ' . "\n"
- . ' ' . $self->_inline_init_slot($attr, $instance, ($instance . '->$builder'))
- . "\n } else {\n"
- . ' ' . $self->_inline_throw_error(q{sprintf "%s does not support builder method '%s' for attribute '%s'", ref(} . $instance . ') || '.$instance.', $attr->builder, $attr->name')
- . ';'. "\n }";
- }
- else {
- $code .= ' ' . $self->_inline_init_slot($attr, $instance, 'undef') . "\n";
- }
+ return 'if (!' . $slot_exists . ') {',
+ $self->_inline_init_from_default($instance, $default),
+ '}';
+}
+
+sub _inline_init_from_default {
+ my $self = shift;
+ my ($instance, $default) = @_;
+
+ my $attr = $self->associated_attribute;
+ # XXX: should this throw an error instead?
+ return $self->_inline_init_slot($attr, $instance, 'undef')
+ unless $attr->has_default || $attr->has_builder;
+
+ return $self->_inline_generate_default($instance, $default),
+ $attr->has_type_constraint
+ ? ($self->_inline_check_coercion($default),
+ $self->_inline_check_constraint($default))
+ : (),
+ $self->_inline_init_slot($attr, $instance, $default);
+}
+
+sub _inline_generate_default {
+ my $self = shift;
+ my ($instance, $default) = @_;
+
+ my $attr = $self->associated_attribute;
+
+ if ($attr->has_default) {
+ return 'my ' . $default . ' = $attr->default(' . $instance . ');';
+ }
+ elsif ($attr->has_builder) {
+ return 'my ' . $default . ';',
+ 'if (my $builder = ' . $instance . '->can($attr->builder)) {',
+ $default . ' = ' . $instance . '->$builder;',
+ '}',
+ 'else {',
+ 'my $class = ref(' . $instance . ') || ' . $instance . ';',
+ 'my $builder_name = $attr->builder;',
+ 'my $attr_name = $attr->name;',
+ $self->_inline_throw_error(
+ '"$class does not support builder method '
+ . '\'$builder_name\' for attribute \'$attr_name\'"'
+ ) . ';',
+ '}';
+ }
+ else {
+ $self->throw_error("Can't generate a default for " . $attr->name
+ . " since no default or builder was specified");
}
- $code .= "}\n";
- return $code;
}
sub _inline_init_slot {
- my ($self, $attr, $inv, $value) = @_;
+ my $self = shift;
+ my ($attr, $inv, $value) = @_;
+
if ($attr->has_initializer) {
- return ('$attr->set_initial_value(' . $inv . ', ' . $value . ');');
+ return '$attr->set_initial_value(' . $inv . ', ' . $value . ');';
}
else {
- return $self->_inline_store($inv, $value);
+ return $self->_inline_store($inv, $value) . ';';
}
}
sub _inline_store {
- my ( $self, $instance, $value ) = @_;
+ my $self = shift;
+ my ($instance, $value) = @_;
- return $self->associated_attribute->inline_set( $instance, $value );
+ return $self->associated_attribute->inline_set( $instance, $value ) . ';';
}
sub _inline_get_old_value_for_trigger {
- my ( $self, $instance ) = @_;
+ my $self = shift;
+ my ($instance, $old) = @_;
my $attr = $self->associated_attribute;
return '' unless $attr->has_trigger;
- return
- 'my @old = '
- . $self->_inline_has($instance) . q{ ? }
- . $self->_inline_get($instance) . q{ : ()} . ";\n";
+ return 'my ' . $old . ' = ' . $self->_inline_has($instance)
+ . ' ? ' . $self->_inline_get($instance)
+ . ' : ();';
}
sub _inline_trigger {
- my ($self, $instance, $value, $old_value) = @_;
+ my $self = shift;
+ my ($instance, $value, $old) = @_;
+
my $attr = $self->associated_attribute;
return '' unless $attr->has_trigger;
- return sprintf('$attr->trigger->(%s, %s, %s);', $instance, $value, $old_value);
+
+ return sprintf('$attr->trigger->(%s, %s, %s);', $instance, $value, $old);
}
+# expressions
+
sub _inline_get {
my ($self, $instance) = @_;
}
sub _inline_auto_deref {
- my ( $self, $ref_value ) = @_;
- my $attr = $self->associated_attribute;
+ my $self = shift;
+ my ($ref_value) = @_;
+ my $attr = $self->associated_attribute;
return $ref_value unless $attr->should_auto_deref;
my $type_constraint = $attr->type_constraint;
$sigil = '%';
}
else {
- $self->throw_error( "Can not auto de-reference the type constraint '"
- . quotemeta( $type_constraint->name )
- . "'", type_constraint => $type_constraint );
+ $self->throw_error(
+ "Can not auto de-reference the type constraint '"
+ . $type_constraint->name
+ . "'",
+ type_constraint => $type_constraint,
+ );
}
"(wantarray() ? $sigil\{ ( $ref_value ) || return } : ( $ref_value ) )";
projects / gitmo/Moose.git / commitdiff