package MooseX::AttributeHelpers::MethodProvider::Hash;
use Moose::Role;
-sub exists : method {
- my ($attr) = @_;
- return sub { exists $attr->get_value($_[0])->{$_[1]} ? 1 : 0 };
-}
+our $VERSION = '0.23';
+$VERSION = eval $VERSION;
+our $AUTHORITY = 'cpan:STEVAN';
-sub get : method {
- my ($attr) = @_;
- return sub { $attr->get_value($_[0])->{$_[1]} };
-}
+with 'MooseX::AttributeHelpers::MethodProvider::ImmutableHash';
sub set : method {
- my ($attr) = @_;
- if ($attr->has_container_type) {
- my $container_type_constraint = $attr->container_type_constraint;
+ my ($attr, $reader, $writer) = @_;
+ if ($attr->has_type_constraint && $attr->type_constraint->isa('Moose::Meta::TypeConstraint::Parameterized')) {
+ my $container_type_constraint = $attr->type_constraint->type_parameter;
return sub {
- ($container_type_constraint->check($_[2]))
- || confess "Value " . ($_[2]||'undef') . " did not pass container type constraint";
- $attr->get_value($_[0])->{$_[1]} = $_[2]
+ my ( $self, @kvp ) = @_;
+
+ my ( @keys, @values );
+
+ while ( @kvp ) {
+ my ( $key, $value ) = ( shift(@kvp), shift(@kvp) );
+ ($container_type_constraint->check($value))
+ || confess "Value " . ($value||'undef') . " did not pass container type constraint '$container_type_constraint'";
+ push @keys, $key;
+ push @values, $value;
+ }
+
+ if ( @values > 1 ) {
+ @{ $reader->($self) }{@keys} = @values;
+ } else {
+ $reader->($self)->{$keys[0]} = $values[0];
+ }
};
}
else {
- return sub { $attr->get_value($_[0])->{$_[1]} = $_[2] };
+ return sub {
+ if ( @_ == 3 ) {
+ $reader->($_[0])->{$_[1]} = $_[2]
+ } else {
+ my ( $self, @kvp ) = @_;
+ my ( @keys, @values );
+
+ while ( @kvp ) {
+ push @keys, shift @kvp;
+ push @values, shift @kvp;
+ }
+
+ @{ $reader->($_[0]) }{@keys} = @values;
+ }
+ };
}
}
-sub keys : method {
- my ($attr) = @_;
- return sub { keys %{$attr->get_value($_[0])} };
-}
-
-sub values : method {
- my ($attr) = @_;
- return sub { values %{$attr->get_value($_[0])} };
-}
-
-sub count : method {
- my ($attr) = @_;
- return sub { scalar keys %{$attr->get_value($_[0])} };
+sub accessor : method {
+ my ($attr, $reader, $writer) = @_;
+
+ if ($attr->has_type_constraint && $attr->type_constraint->isa('Moose::Meta::TypeConstraint::Parameterized')) {
+ my $container_type_constraint = $attr->type_constraint->type_parameter;
+ return sub {
+ my $self = shift;
+
+ if (@_ == 1) { # reader
+ return $reader->($self)->{$_[0]};
+ }
+ elsif (@_ == 2) { # writer
+ ($container_type_constraint->check($_[1]))
+ || confess "Value " . ($_[1]||'undef') . " did not pass container type constraint '$container_type_constraint'";
+ $reader->($self)->{$_[0]} = $_[1];
+ }
+ else {
+ confess "One or two arguments expected, not " . @_;
+ }
+ };
+ }
+ else {
+ return sub {
+ my $self = shift;
+
+ if (@_ == 1) { # reader
+ return $reader->($self)->{$_[0]};
+ }
+ elsif (@_ == 2) { # writer
+ $reader->($self)->{$_[0]} = $_[1];
+ }
+ else {
+ confess "One or two arguments expected, not " . @_;
+ }
+ };
+ }
}
-sub empty : method {
- my ($attr) = @_;
- return sub { scalar keys %{$attr->get_value($_[0])} ? 1 : 0 };
+sub clear : method {
+ my ($attr, $reader, $writer) = @_;
+ return sub { %{$reader->($_[0])} = () };
}
sub delete : method {
- my ($attr) = @_;
- return sub { delete $attr->get_value($_[0])->{$_[1]} };
+ my ($attr, $reader, $writer) = @_;
+ return sub {
+ my $hashref = $reader->(shift);
+ CORE::delete @{$hashref}{@_};
+ };
}
1;
-__END__
\ No newline at end of file
+__END__
+
+=pod
+
+=head1 NAME
+
+MooseX::AttributeHelpers::MethodProvider::Hash
+
+=head1 DESCRIPTION
+
+This is a role which provides the method generators for
+L<MooseX::AttributeHelpers::Collection::Hash>.
+
+This role is composed from the
+L<MooseX::AttributeHelpers::Collection::ImmutableHash> role.
+
+=head1 METHODS
+
+=over 4
+
+=item B<meta>
+
+=back
+
+=head1 PROVIDED METHODS
+
+=over 4
+
+=item B<count>
+
+Returns the number of elements in the hash.
+
+=item B<delete>
+
+Removes the element with the given key
+
+=item B<defined>
+
+Returns true if the value of a given key is defined
+
+=item B<empty>
+
+If the list is populated, returns true. Otherwise, returns false.
+
+=item B<clear>
+
+Unsets the hash entirely.
+
+=item B<exists>
+
+Returns true if the given key is present in the hash
+
+=item B<get>
+
+Returns an element of the hash by its key.
+
+=item B<keys>
+
+Returns the list of keys in the hash.
+
+=item B<set>
+
+Sets the element in the hash at the given key to the given value.
+
+=item B<values>
+
+Returns the list of values in the hash.
+
+=item B<kv>
+
+Returns the key, value pairs in the hash
+
+=item B<accessor>
+
+If passed one argument, returns the value of the requested key. If passed two
+arguments, sets the value of the requested key.
+
+=back
+
+=head1 BUGS
+
+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 AUTHOR
+
+Stevan Little E<lt>stevan@iinteractive.comE<gt>
+
+=head1 COPYRIGHT AND LICENSE
+
+Copyright 2007-2009 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
+
projects / gitmo/MooseX-AttributeHelpers.git / blobdiff