|
|
|
|
|
|
by titzer
714 days ago
|
|
|
Virgil solved this a little differently. The initialization expressions for fields (outside of constructors) as well as implicit assignment of constructor parameters to fields happens before super constructor calls. Such initialization expressions cannot reference "this"--"this" is only available in _constructor bodies_. Initializing fields before calling super and then the chaining of super calls guarantees the whole chain of super constructor calls will finish before entering the body of a constructor, and all fields will be initialized. Thus by construction, virtual methods invoked on "this" won't see uninitialized fields. https://github.com/titzer/virgil/blob/master/doc/tutorial/Cl... |
|
|