Class: DCI::Context

Inherits:
Object show all
Defined in:
lib/drsi/dci/context.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(args = {}) ⇒ Context

Instances of a defined subclass of Context are initialized checking first that all subclass defined roles are provided in the creation invocation raising an error if any of them is missing. Once the previous check is met, every object playing in the context instance is associated to the stated role. Non players args are associated to instance_variables and readers defined.



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# File 'lib/drsi/dci/context.rb', line 117

def initialize(args={})
  check_all_roles_provided_in!(args)
  players, noplayers = args.partition {|key, *| roles.has_key?(key)}.map {|group| Hash[*group.flatten(1)]}
  @_players = players
  @settings = noplayers
end

Class Method Details

.[](*args) ⇒ Object

A short way for ContextSubclass.new(players_and_extra_args).run(extra_args)



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# File 'lib/drsi/dci/context.rb', line 22

def [](*args)
  new(*args).run
end

.inherited(subklass) ⇒ Object

Every subclass of Context has is own class and instance method roles defined. The instance method delegates value to the class.



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# File 'lib/drsi/dci/context.rb', line 11

def inherited(subklass)
  subklass.class_eval do
    @roles ||= {}
    def self.roles; @roles end
    def roles; self.class.roles end
    private :roles
    assign_unplay_roles_within_instance_methods!
  end
end

.method_added(methodname) ⇒ Object 



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# File 'lib/drsi/dci/context.rb', line 85

def self.method_added(methodname)
  if not @context_internals and public_method_defined?(methodname)
    @context_internals = true
    assign_unplay_roles_within_instance_method!(methodname)
    @context_internals = false
  end
end