alexandru-calinoiu

require 'pp'

class Graph
  def initialize(graph = {})
    @hash = graph.freeze
  end

  def add_vertex(node)
    Graph.new(@hash.merge(Hash[node, { edges: {}.freeze }]).freeze)
  end

alexandru-calinoiu

class UserAddressBook
  attr_accessor :user_id, :address_book_entry

  def initialize(user_id, address_book_entry)
    @user_id = user_id
    @address_book_entry = address_book_entry
  end
end

address_book1 = UserAddressBook.new(42, 'test')

alexandru-calinoiu

require 'dry-matcher'

success_case = Dry::Matcher::Case.new(
  match: -> value { value.first == :ok },
  resolve: -> value { value.last }
)

failure_case = Dry::Matcher::Case.new(
  match: -> value, *pattern {
    value[0] == :err && (pattern.any? ? pattern.include?(value[1]) : true)

alexandru-calinoiu

require 'dry-monads'

class Address
  attr_reader :street

  def initialize(street = nil)
    @street = street
  end
end

alexandru-calinoiu

class Success
	def self.===(item)
		item.status >= 200 && item.status < 300
	end
end

class Empty
	def self.===(item)
		item.response_size == 0
	end

alexandru-calinoiu

require 'observer'

class Source
  include Observable

  def ping(int)
    changed
    notify_observers(int)
  end
end

alexandru-calinoiu

Laptop laptop = Laptop.new
laptop.listener = KeyBoardListener.new

class KeyBoardListener
 def key_press(key_code)
   ...
 end
end

alexandru-calinoiu

RuntimeError - Called id for nil, which would mistakenly be 8 -- if you really wanted the id of nil, use object_id:
  activesupport (3.2.13) lib/active_support/whiny_nil.rb:22:in `id'
  app/views/vendor_area/coupons/_redeem_information.html.haml:1:in `_app_views_vendor_area_coupons__redeem_information_html_haml___1822889974911983243_178577280'
  actionpack (3.2.13) lib/action_view/template.rb:145:in `block in render'
  activesupport (3.2.13) lib/active_support/notifications.rb:125:in `instrument'
  actionpack (3.2.13) lib/action_view/template.rb:143:in `render'
  actionpack (3.2.13) lib/action_view/renderer/partial_renderer.rb:265:in `render_partial'
  actionpack (3.2.13) lib/action_view/renderer/partial_renderer.rb:238:in `block in render'
  actionpack (3.2.13) lib/action_view/renderer/abstract_renderer.rb:38:in `block in instrument'
  activesupport (3.2.13) lib/active_support/notifications.rb:123:in `block in instrument'

alexandru-calinoiu

module UserFinders
  extend ActiveSupport::Concern

  def find_user_application(token)
    user_applications.without(:application_errors).find(token)
  end
end

alexandru-calinoiu

Concurrency Level:      16
Time taken for tests:   111.600 seconds
Complete requests:      1024
Failed requests:        0
Write errors:           0
Total transferred:      583680 bytes
Total POSTed:           366592
HTML transferred:       246784 bytes
Requests per second:    9.18 [#/sec] (mean)
Time per request:       1743.743 [ms] (mean)