Ruby/Reflection/Class Reflection
Материал из Wiki.crossplatform.ru
Call ancestors on a class name to see its inheritance hierarchy, like this:
puts Fixnum.ancestors
class attribute of string instance
x = "This is a test" puts x.class
Reflection and Metaprogramming Introduction
Finding the Class and Superclass of an Object "a string".class # => String "a string".class.name # => "String" "a string".class.superclass # => Object String.superclass # => Object String.class # => Class String.class.superclass # => Module "a string".class.new # => ""
The class method supercedes Object"s deprecated method type, or gets the name of the class as a string with the name method
myString = "asdf" myString.class.name # => "String"
The Object class has a class method that returns the name of an instance"s class
myString = "asdf" myString.class # => String
To determine the name of the superclass
myString = "asdf" myString.class.superclass # => Object String.superclass # => Object
