Sha256: ead6c2d946730853f9cde27656f89f1607af0badc41456e42cdf2009bbae48d3
Contents?: true
Size: 738 Bytes
Versions: 6
Compression:
Stored size: 738 Bytes
Contents
require 'facets/class/subclasses'
class Class
# List all descedents of this class.
#
# class A ; end
# class B < A; end
# class C < A; end
# A.descendants #=> [B,C]
#
# You may also limit the generational distance the subclass may be from
# the parent class.
#
# class X ; end
# class Y < X; end
# class Z < Y; end
# X.descendants #=> [Y,Z]
# X.descendants(1) #=> [Y]
#
# NOTE: This is a intensive operation. Do not expect it to be very fast.
def descendants(generations=-1)
descendants = []
subclasses.each do |k|
descendants << k
if generations != 1
descendants.concat(k.descendants(generations - 1))
end
end
descendants
end
end
Version data entries
6 entries across 5 versions & 1 rubygems