If your string is a compile time constant you're code is from a quick glance
only missing one thing. You just need to change the type of field to
static[string] and remove the stringification (just field instead of $field).
Though if the string is not known at compile time this is not that easy. In
languages where this is possible all objects are just tables (hash maps) in
disguise, which isn't the case for Nim.
You can use something like this (which could also be generated using a macro:
proc assign[T](person: var Person, field: string, val: T) =
when T is int:
case field
of "age": person.age = val
else: raiseAssert("cannot assign int field " & field)
elif T is string:
case field
of "name": person.name = val
of "job": person.job = val
else: raiseAssert("cannot assign string field " & field)
Run
Otherwise what exactly do you need this for? There might be a another more
idiomatic way for it.
