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Versions: 192
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Contents
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
Version data entries
192 entries across 159 versions & 26 rubygems