module ChainOfResponsibility

Constants

MethodNotImplementedError
NoAppropriateHandlerFoundError
VERSION

Public Class Methods

included(base) click to toggle source

# File lib/chain_of_responsibility.rb, line 6
def self.included(base)
  base.extend(ClassMethods)
end

Public Instance Methods

chain() click to toggle source

# File lib/chain_of_responsibility.rb, line 20
def chain
  build_chain(self.class.handlers)
end

Private Instance Methods

build_chain(handlers) click to toggle source

# File lib/chain_of_responsibility.rb, line 26
def build_chain(handlers)
  handler, *remaining = handlers

  if remaining.empty?
    handler.new
  else
    handler.new(build_chain(remaining))
  end
end