See class Integer :
Integer.class
=> Class
It also seems like it's a method, at the same time it's a class:
Integer 10.5
=> 10
How is this possible in Ruby? Where is this method defined? What mechanisms does Ruby use to know if I'm calling the method or the class?
How is this possible in Ruby?
So:
class C
attr_accessor :x
def initialize(x)
@x = x
end
end
# N.B.
def C(x)
C.new(x)
end
repl.it: link .
Where is this method defined?
This is a method of object main . The class of this object is Object . This class includes the module Kernel . Method documentation .
What mechanisms does Ruby use to know if I'm calling the method or the class?
Method calls are always message passing:
C.new(42) = send message new to object C .
C(42) = send message C to object main .
(I personally find this confusing. I would not use this.)