Hello, I want my code to be able to switch in runtime between mysql_db and
sqlite_db. It will get that info from a command line arg. but when I import
both, I get a conflict of types. I found a half-solution. it can work with when
blocks, and changing just a const in the code, or I can split the consts to
different files, and compile a few binaries, each targeting a different db
backend. But all of this is less than what I hoped for.
The problem is shown concisely here. Cannot refactor code here.
import db_mysql
import db_sqlite
var db : ___.DbConn
if input=="mysql":
db = db_mysql.open("localhost", user, pass, "dbName")
let ok = db.setEncoding("utf8")
else:
db = db_sqlite.open(dbfile, "", "", "")
start(db)
Run
if I do something like this:
start_processing(db: db_sqlite.DbConn | db_mysql.DbConn)
Run
I will get ambiguity errors later on. (Which type did you mean, to take
fast_rows from.)
