[fpc-devel] current_tokenpos/filepos

[Paul Ishenin]

  06.09.2010 14:52, Florian Klaempfl wrote:
> Am 06.09.2010 05:29, schrieb Hans-Peter Diettrich:
>>>> 5) Some (parser) procedures modify current_tokenpos/filepos temporarily,
>>>> and restore the old values later. What's the purpose of such changes?
>>>>
>>> To get correct file positions in debugging code and error messages.
>> So every temporary change of current_tokenpos should be considered
>> wrong? According to your above description I'd make current_tokenpos a
>> read-only property of the scanner...
> I'am not sure what e.g. generics do with it.
Generics need to replay tokens with their position for debugging purposes.

Best regards,
Paul Ishenin