V: Constructors for structs

[oleg-kachan]

It seems that structs are missing constructors now.

Any intent to add them?

[medvednikov]

No, just like in Go, structs can be constructed with functions, like new_foo().

[oleg-kachan]

I mean what if some background work should be done on initialization? Assigning unique hash to _id field, for example:

struct Mystruct {
  _id int
  value string
}

fn (m mut Mystruct) __constructor() {
  m._id = unique_hash_id()
}

mut my := Mystruct{value: "value"}

[medvednikov]

Yes, you can use a function for that:

fn new_mystruct(value string) MyStruct{
  return MyStruct{
   value: value
   _id: unique_hash_id()
  }
}
mut my := new_mystruct(value)

V is a simple language. Besides, structs are not classes, there's no OOP in V.