Sha256: a98c682276b04e96885b5182dcc4f1fab5c177c4bfc6eb89ef683e73642b8e0f
Contents?: true
Size: 1.96 KB
Versions: 6
Compression:
Stored size: 1.96 KB
Contents
require 'internal/object'
require 'internal/module'
class Object
# Returns an ASCII representation of a class hierarchy, e.g.:
#
# irb(main):004:0> puts Object.new.classtree
# #<Object:0x40330ce8>
# +-class = Object
# |-class = #<Class:Object>
# | |-class = Class
# | | |-class = #<Class:Class>
# | | | |-class = #<Class:Class> (*)
# | | | +-super = #<Class:Module>
# | | | |-class = Class (*)
# | | | +-super = #<Class:Object> (*)
# | | +-super = Module
# | | |-class = #<Class:Module> (*)
# | | +-super = Object (*)
# | +-super = Class (*)
# +-super = #<PP::ObjectMixin?:0x40349568>
# +-class = PP::ObjectMixin?
# |-class = Module (*)
# +-super = #<Kernel:0x4033507c>
# +-class = Kernel
# => nil
#
# An asterisk (*) indicates that the class has previously been
# printed.
#
# The notation #<Class:XXXX> indicates a singleton class.
#
def classtree(s = '', prefix = '', obj=self, graphed={})
# if Module == obj.class.class then
# s << "included module "
# elsif obj.singleton? then
# s << "singleton class "
# elsif Class === obj then
# s << "class "
# end
s << "#{obj}"
if graphed[obj] then
s << " (*)\n"
return s
end
s << "\n"
graphed[obj] = true
return if Kernel == obj
subtree = (Module === obj) && (obj.real_superclass)
s << "#{prefix}#{subtree ? '|-' : '+-'}class = "
classtree(s, prefix + (subtree ? '| ' : ' '), obj.real_class, graphed)
if subtree then
s << "#{prefix}+-super = "
classtree(s, prefix + ' ', obj.real_superclass, graphed)
end
return s
end
end
if __FILE__ == $0 then
module M
end
class Foo
class << self; end
include M
end
class Bar < Foo
end
class Baz
class << self; @foo = 1; end
def self.foo; end
end
b = Bar.new
b.classtree($stderr)
b = Baz.new
b.classtree($stderr)
end
Version data entries
6 entries across 6 versions & 1 rubygems