[fpc-devel] Property overloading vs. property array enumerators
kazantsev.alexey at mail.ru
Thu Jan 28 20:02:21 CET 2016
On Thu, 28 Jan 2016 22:33:39 +0400, Ondrej Pokorny <lazarus at kluug.net>
> why the double-posting?
Because my example answer to your querys:
> First, I don't want to publish the TEnumeratedObjects object to the
> outside of TTest (e.g. you could call Free on it and do other stuff I
> don't want to be allowed).
You can return record, and what is more, record of nested private type
(i.e. user can use your type, but can't declare variable of your type).
> Second, TEnumeratedObjects doesn't even need to exist! What about
> "virtual" array properties that are not mapped to existing objects?
It because your example very simple. In more complex cases we can have
other methods/overloaded operators in returned record. And it more
TValueArray = Array Of TObj.TValue;
var va : TValueArray;
va := Obj.Values;
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