core.instruction.Constant Class Reference

Constant instruction. More...

Inheritance diagram for core.instruction.Constant:

Public Member Functions
def	__init__
def	execute
def	setKey
	Set the instruction address. More...
def	__str__
	Return a string representation of this instruction. More...
def	addDestination
def	sendDatum

Public Attributes
	value
	chunk
	key
	destinations

Detailed Description

Constant instruction.

A special sink that always sends it's value to it's destinations when it encounters input. This is not really 'nice' according to dataflow semantics but necessary to allow literals that cannot be propagated.

The constant instruction will only send it's value when receiving data on port 0. This allows it to only generate a single token when it is placed after a switch statement (which is the only place where it should occur).

Constructor & Destructor Documentation

def core.instruction.Constant.__init__	(		self,
			value
	)

Member Function Documentation

def core.instruction.Constant.execute	(		self,
			token,
			core
	)

def core.instruction.Instruction.setKey (   self,   key  )

inherited

Set the instruction address.

def core.instruction.Instruction.__str__ (   self )

inherited

Return a string representation of this instruction.

def core.instruction.DestinationList.addDestination (   self,   _,   inst,   port  )

inherited

def core.instruction.DestinationList.sendDatum (   self,   datum,   core,   _,   cont  )

inherited

Member Data Documentation

core.instruction.Constant.value

core.instruction.Instruction.chunk

inherited

core.instruction.Instruction.key

inherited

core.instruction.DestinationList.destinations

inherited