core.tokenizer.Switcher Class Reference

Token Switcher. More...

Inherits object.

Public Member Functions
def	__init__
	Store the tokens that have not received a destination. More...
def	send
	Send a token to it's destination. More...
def	store
	Store a token. More...
def	sendStored
	Send all the stored tokens that were waiting for a switch to be set. More...
def	set
	Set the destination of tokens for a given (switch instruction, context) pair. More...
def	switch
	Send a token to the destination of a SwitchInstruction. More...

Public Attributes
	tokenizer
	storage
	destinations

Detailed Description

Token Switcher.

The token switcher is responsible for storing and sending tokens for a switch instruction.

Constructor & Destructor Documentation

def core.tokenizer.Switcher.__init__	(		self,
			tokenizer
	)

Store the tokens that have not received a destination.

Store the known destination of certain switch instructions.

Member Function Documentation

def core.tokenizer.Switcher.send	(		self,
			key,
			token
	)

Send a token to it's destination.

Assumes the destination is present in the destination map.

Parameters

key	The key of the switch.
token	The token to send.

def core.tokenizer.Switcher.store	(		self,
			key,
			token
	)

Store a token.

Parameters

key	The key of the switch.
token	The token to store.

def core.tokenizer.Switcher.sendStored	(		self,
			key,
			dst
	)

Send all the stored tokens that were waiting for a switch to be set.

Parameters

key	The key of the switch that was set. And the context for which this was set.
dst	The destination for the tokens.

def core.tokenizer.Switcher.set	(		self,
			inst,
			cont,
			dst
	)

Set the destination of tokens for a given (switch instruction, context) pair.

This will also release all the tokens that are stored for this context.

Parameters

inst	The instruction that sent the switch.
cont	The context that received the setSwitch
dst	The destination of the tokens of the switch.

def core.tokenizer.Switcher.switch	(		self,
			token,
			inst
	)

Send a token to the destination of a SwitchInstruction.

Store the token if the destination is currently unknown. Only the instruction address of the token tag is modified.

Parameters

token	The token to switch
inst	The instruction that sent the token.

Member Data Documentation

core.tokenizer.Switcher.tokenizer

core.tokenizer.Switcher.storage

core.tokenizer.Switcher.destinations