gistfile1.txt

Introduction .....................................................................................................6
  What This Is ..................................................................................................................8 
  What This Is Not ...........................................................................................................8
Lost In Translation...........................................................................................9
  Our First Bugs..............................................................................................................10
Object Orientation ........................................................................................12
  Where We Are..............................................................................................................12    
  Where We’ve Been .......................................................................................................20 
  Where We’re Going .....................................................................................................21
Being and Doing ............................................................................................23
  Managing Change........................................................................................................26   
  Simplifying the Code....................................................................................................28 
  Wrong turn...................................................................................................................30
Objects in Context.........................................................................................34
  Clearer Perspective.......................................................................................................37
  Describing the System..................................................................................................38 
  Implementing Your System..........................................................................................41 
  All Set Up.....................................................................................................................45
Gazelles And Gazebos ...................................................................................47 
Crossing the Use Chasm................................................................................50
  Framing The Problem..................................................................................................50 
  Preparing The Context ................................................................................................54 
  Defining Success ..........................................................................................................57
  Brainstorming ..............................................................................................................53
  Setting Boundaries .......................................................................................................60
Screenplay In Action......................................................................................63
  Finding the Expert .......................................................................................................63  
  Defining Interaction.....................................................................................................66
Responding to Rails.......................................................................................67
  Considering Dependencies ..........................................................................................69 
  Framework Glue...........................................................................................................76
East-oriented Code ........................................................................................80
  Directional Programming ............................................................................................82 
  Rules To Code By ........................................................................................................85 
  Functional Principles ...................................................................................................91
Understanding Context .................................................................................92
  Systems and Responsibilities ........................................................................................94 
  Grouping Features .......................................................................................................95 
  Encapsulating Environments .......................................................................................99
Inheritance, Forwarding and Delegation.....................................................108
  Simplicity of Inheritance ...........................................................................................108 
  Composition and Forwarding ....................................................................................110 
  Consultation is Not Delegation..................................................................................113
Adjusting to Limitations ..............................................................................118
  Wrappers ....................................................................................................................119 
  Concerning Self..........................................................................................................129 
  Illusions in Code.........................................................................................................131
Drastic Changes...........................................................................................132
Object Collaboration...................................................................................133
  Delegate Standard Library ........................................................................................133 
  Forwardable Standard Library...................................................................................139 
  ActiveSupport Delegation..........................................................................................142 
  Casting .......................................................................................................................143