thanks for the replay, I have tried it and now works, here is code
type
Person = object
name: string
age: int
city: string
proc getFields(t: type):seq[string] =
var p: Person
for field, v in p.fieldPairs:
when v.type is t:
result.add(field)
template withField(x: untyped, T: type, actions: untyped) =
var x: T
when x.astToStr in getFields(T):
actions
else:
discard
withField(name, string):
name = "jk"
echo name
withField(fullname, string): # fullname does not exist, actions will be
discard
fullname = "jk"
echo fullname
Run
