Controller ideas

gistfile1.py

### Controller ideas

# Subcontroller takes the lead

class Controller(object):
	def go(self):
		a = self.aye()
		yield a
		b = self.bee(a)
		yield b
		c = self.cea(b)
		yield c

	def aye(self):
		return "A\n"

	def bee(self, a):
		return "B\n"

	def cea(self, b):
		return "C\n"

print [i for i in Controller().go()]


class SubController(Controller):
	def go(self):
		controller = super(SubController, self).go()
		yield controller.next()
		b = controller.next()
		yield b
		d = self.dee(b)
		yield d
		# missing 'yield from' ;;
		for i in controller:
			yield i

	def dee(self, b):
		return "D\n"


print [i for i in SubController().go()]


# controller will execute any function it is passed
#  ( could 'yield from' passed-in generator if there are lots of functions )

class Controller2(object):
	def go(self):
		l = [self.aye, self.bee, self.cea]
		v = None
		for i in l:
			v = i(v) if v else i()
			r = yield v
			while r:
				v = r(v)
				r = yield v


	def aye(self):
		return "A\n"

	def bee(self, a):
		return "B\n"

	def cea(self, b):
		return "C\n"

print [i for i in Controller2().go()]

class SubController2(Controller2):
	def go(self):
		controller = super(SubController2, self).go()
		yield controller.next()
		yield controller.next()
		yield controller.send(self.dee)
		for i in controller:
			yield i

	def dee(self, b):
		return "D\n"


print [i for i in SubController2().go()]