I want to yell at my future self to not manually set read-only properties. Would anyone else benefit from me implementing some kind of read only accessor in Batman.Object?

read_only_accessor.js.coffee

# Idea
class Whatever extends Batman.Object
  @readOnlyAccessor 'computedValue', ->
    @get('otherValue') + 2

# Equivalent
class Whatever extends Batman.Object
  @accessor 'computedValue',
    get: ->
      @get('otherValue') + 2
    set: (key, value) ->
      throw new Error("Duder! Don't do that! #{key} is a read only accessor")