[fpc-pascal] Re: Problem with virtual constructors

Jorge Aldo G. de F. Junior jagfj80 at gmail.com
Wed Jun 1 20:16:04 CEST 2011


Cobines solution worked !

not tested constref.

2011/6/1 Jorge Aldo G. de F. Junior <jagfj80 at gmail.com>:
> 2011/6/1 leledumbo <leledumbo_cool at yahoo.co.id>:
>> Yep, this situation would confuse the compiler as it's possible to assign
>> descendant class instance to a class.
>> 1st solution: rename one of the constructor, don't need to use
>> virtual/override
>
> Its a class factory, i cannot have multiple constructors, so i need
> virtual constructors in order to build classes from names.
>
>> 2nd solution: try using constref instead of const (I hope constref has the
>> same semantics as var for classes, where the assigned object must be exactly
>> the instance of expected class, descendants not allowed)
>
> I will try that.
>
>>
>> --
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>



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