Are you tired of all of that modules, processes and functions nonsense? Do you want to just use classes, objects and methods? If so, use OOP [1] library in Elixir [2]!
import OOP
class Person do
var :name
def say_hello_to(who) do
what = "Hello #{who.name}"
IO.puts("#{this.name}: #{what}")
end
end
joe = Person.new(name: "Joe")
mike = Person.new(name: "Mike")
robert = Person.new(name: "Robert")
joe.say_hello_to(mike) # Joe: Hello Mike
mike.say_hello_to(joe) # Mike: Hello Joe
mike.say_hello_to(robert) # Mike: Hello Robert
robert.say_hello_to(mike) # Robert: Hello Mike
joe.set_name("Hipster Joe")
joe.name # => Hipster JoeAn OOP library wouldn't be complete without inheritance:
class Animal do
var :name
end
class Dog < Animal do
var :breed
end
snuffles = Dog.new(name: "Snuffles", breed: "Shih Tzu")
snuffles.name # => "Snuffles"
snuffles.breed # => "Shih Tzu"... or multiple inheritance:
class Human do
var :name
end
class Horse do
var :horseshoes_on?
end
class Centaur < [Human, Horse] do
end
john = Centaur.new(name: "John", horseshoes_on?: true)
john.name # => "John"
john.horseshoes_on? # => trueSee more usage in the test suite.
Add oop to your list of dependencies in mix.exs:
def deps do
[{:oop, "~> 0.1.0"}]
end[1] According to Alan Kay, the inventor of OOP, "objects" is the lesser idea; the big idea is "messaging". In that sense, I can't agree more with Joe Armstrong's quote that Erlang is "possibly the only object-oriented language".
[2] Please don't. You've been warned.
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Copyright (c) 2015 Wojciech Mach
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