X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FMouse%2FMeta%2FAttribute.pm;h=1ef8a77802ce88c363afb7a19b85d9ce548a04c5;hb=a15d1371334de8874a74618597d0c1995fdca276;hp=4feac11dd03d1b2e5118ce42ee7d5d153bf715f2;hpb=4a29b63e8d38182682b0c13ac0260f708cb1b89f;p=gitmo%2FMouse.git diff --git a/lib/Mouse/Meta/Attribute.pm b/lib/Mouse/Meta/Attribute.pm index 4feac11..1ef8a77 100644 --- a/lib/Mouse/Meta/Attribute.pm +++ b/lib/Mouse/Meta/Attribute.pm @@ -12,6 +12,12 @@ use Mouse::Meta::Method::Accessor; sub _process_options{ my($class, $name, $args) = @_; + + # XXX: for backward compatibility (with method modifiers) + if($class->can('canonicalize_args') != \&canonicalize_args){ + %{$args} = $class->canonicalize_args($name, %{$args}); + } + # taken from Class::MOP::Attribute::new defined($name) @@ -25,8 +31,12 @@ sub _process_options{ my $can_be_required = defined( $args->{init_arg} ); if(exists $args->{builder}){ + # XXX: + # Moose refuses a CODE ref builder, but Mouse doesn't for backward compatibility + # This feature will be changed in a future. (gfx) $class->throw_error('builder must be a defined scalar value which is a method name') - if ref $args->{builder} || !(defined $args->{builder}); + #if ref $args->{builder} || !defined $args->{builder}; + if !defined $args->{builder}; $can_be_required++; } @@ -119,10 +129,6 @@ sub _process_options{ || $class->throw_error("You cannot have lazy attribute ($name) without specifying a default value for it"); } - # XXX: for backward compatibility (with method modifiers) - if($class->can('canonicalize_args') != \&canonicalize_args){ - %{$args} = $class->canonicalize_args($name, %{$args}); - } return; } @@ -242,7 +248,8 @@ sub canonicalize_args{ my ($self, $name, %args) = @_; Carp::cluck("$self->canonicalize_args has been deprecated." - . "Use \$self->_process_options instead."); + . "Use \$self->_process_options instead.") + if _MOUSE_VERBOSE; return %args; } @@ -251,7 +258,8 @@ sub create { my ($self, $class, $name, %args) = @_; Carp::cluck("$self->create has been deprecated." - . "Use \$meta->add_attribute and \$attr->install_accessors instead."); + . "Use \$meta->add_attribute and \$attr->install_accessors instead.") + if _MOUSE_VERBOSE; # noop return $self; @@ -308,8 +316,8 @@ sub clone_parent { my %args = ($self->get_parent_args($class, $name), @_); Carp::cluck("$self->clone_parent has been deprecated." - . "Use \$meta->add_attribute and \$attr->install_accessors instead."); - + . "Use \$meta->add_attribute and \$attr->install_accessors instead.") + if _MOUSE_VERBOSE; $self->clone_and_inherited_args($class, $name, %args); } @@ -328,6 +336,12 @@ sub get_parent_args { $self->throw_error("Could not find an attribute by the name of '$name' to inherit from"); } +sub associate_method{ + my ($attribute, $method) = @_; + $attribute->{associated_methods}++; + return; +} + sub install_accessors{ my($attribute) = @_; @@ -364,7 +378,7 @@ __END__ =head1 NAME -Mouse::Meta::Attribute - attribute metaclass +Mouse::Meta::Attribute - The Mouse attribute metaclass =head1 METHODS @@ -376,7 +390,7 @@ It adds the following options to the constructor: =over 4 -=item * C<< is => 'ro', 'rw', 'bare' >> +=item C<< is => 'ro', 'rw', 'bare' >> This provides a shorthand for specifying the C, C, or C names. If the attribute is read-only ('ro') then it will @@ -392,7 +406,7 @@ Use 'bare' when you are deliberately not installing any methods Moose will issue a deprecation warning when this attribute is added to a metaclass. -=item * C<< isa => Type >> +=item C<< isa => Type >> This option accepts a type. The type can be a string, which should be a type name. If the type name is unknown, it is assumed to be a class @@ -404,14 +418,14 @@ If you I provide a C option, then your C option must be a class name, and that class must do the role specified with C. -=item * C<< does => Role >> +=item C<< does => Role >> This is short-hand for saying that the attribute's type must be an object which does the named role. B -=item * C<< coerce => Bool >> +=item C<< coerce => Bool >> This option is only valid for objects with a type constraint (C). If this is true, then coercions will be applied whenever @@ -419,12 +433,12 @@ this attribute is set. You can make both this and the C option true. -=item * C<< trigger => CodeRef >> +=item C<< trigger => CodeRef >> This option accepts a subroutine reference, which will be called after the attribute is set. -=item * C<< required => Bool >> +=item C<< required => Bool >> An attribute which is required must be provided to the constructor. An attribute which is required can also have a C or C, @@ -433,24 +447,24 @@ which will satisfy its required-ness. A required attribute must have a C, C or a non-C C -=item * C<< lazy => Bool >> +=item C<< lazy => Bool >> A lazy attribute must have a C or C. When an attribute is lazy, the default value will not be calculated until the attribute is read. -=item * C<< weak_ref => Bool >> +=item C<< weak_ref => Bool >> If this is true, the attribute's value will be stored as a weak reference. -=item * C<< auto_deref => Bool >> +=item C<< auto_deref => Bool >> If this is true, then the reader will dereference the value when it is called. The attribute must have a type constraint which defines the attribute as an array or hash reference. -=item * C<< lazy_build => Bool >> +=item C<< lazy_build => Bool >> Setting this to true makes the attribute lazy and provides a number of default methods. @@ -472,6 +486,13 @@ is equivalent to this: =back +=head2 C<< associate_method(Method) >> + +Associates a method with the attribute. Typically, this is called internally +when an attribute generates its accessors. + +Currently the argument I is ignored in Mouse. + =head2 C<< verify_against_type_constraint(Item) -> TRUE | ERROR >> Checks that the given value passes this attribute's type constraint. Returns C @@ -479,12 +500,14 @@ on success, otherwise Ces. =head2 C<< clone_and_inherit_options(options) -> Mouse::Meta::Attribute >> -Creates a new attribute in OwnerClass, inheriting options from parent classes. +Creates a new attribute in the owner class, inheriting options from parent classes. Accessors and helper methods are installed. Some error checking is done. =head1 SEE ALSO L +L + =cut