[Lazarus] Weird object variables access [SOLVED] - Delphi mode bug!
giuliano.colla at fastwebnet.it
Tue Oct 24 14:56:12 CEST 2017
Il 24/10/2017 14:10, Michael Van Canneyt via Lazarus ha scritto:
> A valid method can never be stored in a pointer, since the former is
> actually 2 pointers (method/data) and the latter is just 1 pointer.
> That the assignment is valid is Delphi compatible: only the procedure
> address is copied.
I wonder if Delphi does such a stupid thing, or rather it stores in the
pointer the address of a pointer pair (method/data).
However here the issue is that a pointer can be assigned to a "procedure
of object" without flagging an error:
TProc = Procedure of object;
@NextProc := Coda.Remove; // Remove returns a pointer
Sending := True;
This compiles (in Delphi mode) without generating an error, and it is
wrong, because NextProc is a Method, not a simple procedure.
More information about the Lazarus