GrammarLexer.java 文件源码

@Override
public Token emit() {
    if (_type == ID) {
        String firstChar = _input.getText(Interval.of(_tokenStartCharIndex, _tokenStartCharIndex));
        if (Grammar.isTokenName(firstChar)) {
            _type = TOKEN_REF;
        } else {
            _type = RULE_REF;
        }

        if (_ruleType == Token.INVALID_TYPE) {
            _ruleType = _type;
        }
    } else if (_type == SEMI) {
        _ruleType = Token.INVALID_TYPE;
    }

    return super.emit();
}