Examples with Char com.alibaba.cobar.parser.ast.expression.primary.function.string.Char used on opensource projects

Example 1 with Char

use of com.alibaba.cobar.parser.ast.expression.primary.function.string.Char in project cobar by alibaba.

the class MySQLExprParser method functionChar.

/**
     * first '(' has been consumed
     */
private Char functionChar() throws SQLSyntaxErrorException {
    Char chr;
    for (List<Expression> tempExprList = new LinkedList<Expression>(); ; ) {
        Expression tempExpr = expression();
        tempExprList.add(tempExpr);
        switch(lexer.token()) {
            case PUNC_COMMA:
                lexer.nextToken();
                continue;
            case PUNC_RIGHT_PAREN:
                lexer.nextToken();
                chr = new Char(tempExprList, null);
                chr.setCacheEvalRst(cacheEvalRst);
                return chr;
            case KW_USING:
                lexer.nextToken();
                String tempStr = lexer.stringValue();
                match(IDENTIFIER);
                match(PUNC_RIGHT_PAREN);
                chr = new Char(tempExprList, tempStr);
                chr.setCacheEvalRst(cacheEvalRst);
                return chr;
            default:
                throw err("expect ',' or 'USING' or ')' but is " + lexer.token());
        }
    }
}