Select_or_valuesGenerator.java 文件源码

private static RuleContext createColumnName_(Expr_functionContext rule, OutputField field) {
    Column_name_Context column_name_ = new Column_name_Context(rule.getParent(), rule.invokingState);
    Column_nameContext column_name = new Column_nameContext(column_name_.getParent(), rule.invokingState);
    IdentifierContext identifier = new IdentifierContext(column_name, rule.invokingState);
    CommonToken token = CommonTokenFactory.DEFAULT.create(
            MysqlParser.BACKTICK_QUOTED_IDENTIFIER, 
            '`' + field.name + '`' );
    TerminalNode term = new TerminalNodeImpl(token);
    identifier.addChild(term);
    column_name.addChild(identifier);
    column_name_.addChild(column_name);
    return column_name_;
}