AstBuilder.java 文件源码

private static CurrentTime.Type getDateTimeFunctionType(Token token)
{
    switch (token.getType()) {
        case SqlBaseLexer.CURRENT_DATE:
            return CurrentTime.Type.DATE;
        case SqlBaseLexer.CURRENT_TIME:
            return CurrentTime.Type.TIME;
        case SqlBaseLexer.CURRENT_TIMESTAMP:
            return CurrentTime.Type.TIMESTAMP;
        case SqlBaseLexer.LOCALTIME:
            return CurrentTime.Type.LOCALTIME;
        case SqlBaseLexer.LOCALTIMESTAMP:
            return CurrentTime.Type.LOCALTIMESTAMP;
    }

    throw new IllegalArgumentException("Unsupported special function: " + token.getText());
}