+++ /dev/null
-class Class #:nodoc:
-
- # Unassociates the class with its subclasses and removes the subclasses
- # themselves.
- #
- # Integer.remove_subclasses # => [Bignum, Fixnum]
- # Fixnum # => NameError: uninitialized constant Fixnum
- def remove_subclasses
- Object.remove_subclasses_of(self)
- end
-
- # Returns an array with the names of the subclasses of +self+ as strings.
- #
- # Integer.subclasses # => ["Bignum", "Fixnum"]
- def subclasses
- Object.subclasses_of(self).map { |o| o.to_s }
- end
-
- # Removes the classes in +klasses+ from their parent module.
- #
- # Ordinary classes belong to some module via a constant. This method computes
- # that constant name from the class name and removes it from the module it
- # belongs to.
- #
- # Object.remove_class(Integer) # => [Integer]
- # Integer # => NameError: uninitialized constant Integer
- #
- # Take into account that in general the class object could be still stored
- # somewhere else.
- #
- # i = Integer # => Integer
- # Object.remove_class(Integer) # => [Integer]
- # Integer # => NameError: uninitialized constant Integer
- # i.subclasses # => ["Bignum", "Fixnum"]
- # Fixnum.superclass # => Integer
- def remove_class(*klasses)
- klasses.flatten.each do |klass|
- # Skip this class if there is nothing bound to this name
- next unless defined?(klass.name)
-
- basename = klass.to_s.split("::").last
- parent = klass.parent
-
- # Skip this class if it does not match the current one bound to this name
- next unless parent.const_defined?(basename) && klass = parent.const_get(basename)
-
- parent.instance_eval { remove_const basename } unless parent == klass
- end
- end
-end