Am 24.11.2011 16:56, schrieb Juha Manninen:
It says:
unit1.pas(40,24) Error: Duplicate identifier "FreeObjects"
Why? If I change "FreeObjects" to "aFreeObjects" then it works. Again why?
You simply picked a bad example, because "TFPGObjectList" contains a
property called "FreeObjects", thus mode ObjFPC will not allow you to
declare a similar identifier again in this class.
Though it's inconsistent (and in my opinion a bug) that the duplicated
declaration inside "TFPGObjectList" itself is not detected...
Note: if the property in "TFPGObjectList" would be moved before the
constructor it should be detected as duplicate.
Is it even ok to derive classes from specialized classes like that?
Of course it is. In Delphi (and my generics branch) even the following
is allowed:
{$mode delphi}
type
TSomeDerivedList<T> = class(TFPGObjectList<T>)
// ...
end;
Regards,
Sven
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