CodeCompletionErrorStrategy.java 文件源码

@Override
    public void recover(Parser recognizer, RecognitionException e) {
        if (recognizer instanceof CodeCompletionParser
            && ((CodeCompletionParser)recognizer).getInterpreter().getCaretTransitions() != null) {

//                    int stateNumber = recognizer.getContext().s;
//                    ATNState state = recognizer.getATN().states.get(stateNumber);
//                    if (state instanceof DecisionState && recognizer.getInputStream() instanceof ObjectStream) {
//                        int decision = ((DecisionState)state).decision;
//                        ParserATNSimulator simulator = recognizer.getInterpreter();
//                        int prediction = simulator.adaptivePredict((ObjectStream)recognizer.getInputStream(), decision, recognizer.getContext());
//                    }

            CodeCompletionParser parser = (CodeCompletionParser)recognizer;
            CaretToken token = parser.getInterpreter().getCaretToken();
            AbstractCompletionParserATNSimulator interpreter = parser.getInterpreter();

            throw new CaretReachedException(parser.getContext(), token, interpreter.getCaretTransitions(), e);
        }

        // TODO: incorporate error recovery as a fallback option if no trees match correctly
        throw e;
        //super.recover(recognizer, e);
    }