def addDFAState(self, configs: ATNConfigSet) -> DFAState:
# the lexer evaluates predicates on-the-fly; by this point configs
# should not contain any configurations with unevaluated predicates.
assert not configs.hasSemanticContext
proposed = DFAState(configs=configs)
firstConfigWithRuleStopState = None
for c in configs:
if isinstance(c.state, RuleStopState):
firstConfigWithRuleStopState = c
break
if firstConfigWithRuleStopState is not None:
proposed.isAcceptState = True
proposed.lexerActionExecutor = firstConfigWithRuleStopState.lexerActionExecutor
proposed.prediction = self.atn.ruleToTokenType[
firstConfigWithRuleStopState.state.ruleIndex]
dfa = self.decisionToDFA[self.mode]
existing = dfa.states.get(proposed, None)
if existing is not None:
return existing
newState = proposed
newState.stateNumber = len(dfa.states)
configs.setReadonly(True)
newState.configs = configs
dfa.states[newState] = newState
return newState
def addDFAState(self, configs):
proposed = DFAState(configs=configs)
firstConfigWithRuleStopState = next(
(cfg for cfg in configs if isinstance(cfg.state, RuleStopState)),
None)
if firstConfigWithRuleStopState is not None:
proposed.isAcceptState = True
proposed.lexerActionExecutor = firstConfigWithRuleStopState.lexerActionExecutor
proposed.prediction = self.atn.ruleToTokenType[
firstConfigWithRuleStopState.state.ruleIndex]
dfa = self.decisionToDFA[self.mode]
existing = dfa.states.get(proposed, None)
if existing is not None:
return existing
newState = proposed
newState.stateNumber = len(dfa.states)
configs.setReadonly(True)
newState.configs = configs
dfa.states[newState] = newState
return newState
def addDFAState(self, configs:ATNConfigSet) -> DFAState:
proposed = DFAState(configs=configs)
firstConfigWithRuleStopState = None
for c in configs:
if isinstance(c.state, RuleStopState):
firstConfigWithRuleStopState = c
break
if firstConfigWithRuleStopState is not None:
proposed.isAcceptState = True
proposed.lexerActionExecutor = firstConfigWithRuleStopState.lexerActionExecutor
proposed.prediction = self.atn.ruleToTokenType[firstConfigWithRuleStopState.state.ruleIndex]
dfa = self.decisionToDFA[self.mode]
existing = dfa.states.get(proposed, None)
if existing is not None:
return existing
newState = proposed
newState.stateNumber = len(dfa.states)
configs.setReadonly(True)
newState.configs = configs
dfa.states[newState] = newState
return newState
def addDFAState(self, configs):
# the lexer evaluates predicates on-the-fly; by this point configs
# should not contain any configurations with unevaluated predicates.
assert not configs.hasSemanticContext
proposed = DFAState(configs=configs)
firstConfigWithRuleStopState = None
for c in configs:
if isinstance(c.state, RuleStopState):
firstConfigWithRuleStopState = c
break
if firstConfigWithRuleStopState is not None:
proposed.isAcceptState = True
proposed.lexerActionExecutor = firstConfigWithRuleStopState.lexerActionExecutor
proposed.prediction = self.atn.ruleToTokenType[firstConfigWithRuleStopState.state.ruleIndex]
dfa = self.decisionToDFA[self.mode]
existing = dfa.states.get(proposed, None)
if existing is not None:
return existing
newState = proposed
newState.stateNumber = len(dfa.states)
configs.setReadonly(True)
newState.configs = configs
dfa.states[newState] = newState
return newState
