菜单
Use when working with Ruby's object-oriented programming features including classes, modules, inheritance, mixins, and method visibility.
默认使用会先检查来源的 Prompt；你也可以切换为直接命令，或下载本地副本。
决定是否安装前，请先阅读 SKILL.md，以及 SkillsMP 当前展示的配套文件。
用 Codex 或 Claude 帮你安装 复制这段 Prompt，粘贴到 Codex、Claude 或其他助手里，让它检查 Skill 页面并帮你完成安装。
直接命令不会经过审查 Prompt；运行前请先检查来源。
npx skills add https://github.com/TheBushidoCollective/han --skill ruby-oop命令会保持在同一行。复制前请横向滚动并检查完整内容。
想先保存到本地？可下载 SkillsMP 当前能够提供的文件。
正在显示 SKILL.md
Review current branch changes against REVIEW.md guidelines
Use when kotlin coroutines for structured concurrency including suspend functions, coroutine builders, Flow, channels, and patterns for building efficient asynchronous code with cancellation and exception handling.
Use when building modular Angular applications requiring dependency injection with providers, injectors, and services.
基于 SOC 职业分类
| name | ruby-oop |
| user-invocable | false |
| description | Use when working with Ruby's object-oriented programming features including classes, modules, inheritance, mixins, and method visibility. |
| allowed-tools | ["Bash","Read","Write","Edit"] |
Master Ruby's elegant object-oriented programming features. Ruby is a pure object-oriented language where everything is an object.
class Person
# Class variable (shared across all instances)
@@count = 0
# Constant
MAX_AGE = 150
# Class method
def self.count
@@count
end
# Constructor
def initialize(name, age)
@name = name # Instance variable
= age
+=
person = .new(, )
puts person.introduce
person.name =
class BankAccount
def initialize(balance)
@balance = balance
end
# Public methods (default)
def deposit(amount)
@balance += amount
log_transaction(:deposit, amount)
end
def balance
format_currency(@balance)
end
# Protected methods - callable by instances of same class/subclass
protected
def log_transaction(type, amount)
puts "[#{type}] #{amount}"
end
# Private methods - only callable within this instance
private
def format_currency(amount)
"$#{amount}"
end
end
class Animal
def initialize(name)
@name = name
end
def speak
"Some sound"
end
end
class Dog < Animal
def speak
"Woof! My name is #{@name}"
end
# Call parent method with super
def introduce
super # Calls parent's speak method
puts "I'm a dog"
end
end
dog = Dog.new("Buddy")
puts dog.speak
class Vehicle
def initialize(brand)
@brand = brand
end
def start_engine
puts "Engine starting..."
end
end
class Car < Vehicle
def initialize(brand, model)
super(brand) # Call parent constructor
@model = model
end
def start_engine
super # Call parent method
puts "#{@brand} #{@model} is ready to drive"
end
end
module MyApp
module Utils
def self.format_date(date)
date.strftime("%Y-%m-%d")
end
end
end
MyApp::Utils.format_date(Time.now)
module Swimmable
def swim
"I'm swimming!"
end
end
module Flyable
def fly
"I'm flying!"
end
end
class Duck
include Swimmable # Instance methods
include Flyable
def quack
"Quack!"
end
end
duck = Duck.new
puts duck.swim
puts duck.fly
module Greetable
def greet
"Hello!"
end
end
class Person
include Greetable # Adds as instance method
end
class Company
extend Greetable # Adds as class method
end
Person.new.greet # Works
Company.greet # Works
class Database
@instance = nil
private_class_method :new
def self.instance
@instance ||= new
end
def connect
puts "Connected to database"
end
end
db1 = Database.instance
db2 = Database.instance
db1.object_id == db2.object_id # true
class DynamicAttributes
def method_missing(method_name, *args)
attribute = method_name.to_s
if attribute.end_with?("=")
# Setter
instance_variable_set("@#{attribute.chop}", args.first)
else
# Getter
instance_variable_get("@#{attribute}")
end
end
def respond_to_missing?(method_name, include_private = false)
true
end
end
obj = DynamicAttributes.new
obj.name = "Ruby"
puts obj.name # "Ruby"
class Product
@inventory = []
class << self
attr_accessor :inventory
def add(product)
@inventory << product
end
end
end
Product.add("Laptop")
Person = Struct.new(:name, :age) do
def introduce
"I'm #{name}, #{age} years old"
end
end
person = Person.new("Bob", 25)
puts person.name
person.age = 26
require 'ostruct'
person = OpenStruct.new
person.name = "Charlie"
person.age = 30
person.email = "charlie@example.com"
puts person.name
class Engine
def start
"Engine started"
end
end
class Wheels
def rotate
"Wheels rotating"
end
end
class Car
def initialize
@engine = Engine.new
@wheels = Wheels.new
end
def start
@engine.start
end
def drive
@wheels.rotate
end
end
class Person
include Comparable
attr_reader :age
def initialize(name, age)
@name = name
@age = age
end
def <=>(other)
age <=> other.age
end
end
people = [Person.new("Alice", 30), Person.new("Bob", 25)]
puts people.sort.map(&:age) # [25, 30]
class Counter
@@count = 0 # Class variable (shared)
@instances = [] # Class instance variable (not shared with subclasses)
def initialize
@@count += 1
end
def self.count
@@count
end
end
❌ Don't use class variables unnecessarily - they're shared across inheritance hierarchy ❌ Don't create god objects - keep classes focused and small ❌ Don't expose internal state - use methods instead of direct instance variable access ❌ Don't overuse inheritance - prefer composition or modules ❌ Don't ignore visibility modifiers - they exist for encapsulation