Hello,
Which 'Count' should the compiler select ? I suspect TSub.Count ?
I think we should prohibit this dubious construct in ObjFC mode.
(but try to be delphi compatible in Delphi mode)
Michael.
On Wed, 20 Oct 2010, Birger Jansen wrote:
I'm not sure if this is the correct way to report this, please correct me if I
should report in another way.
I found an old conversation between Leonardo and Florian about the Fatail
internal error 200111022. The thread concluded that they could not reproduce
the error.
I got this error while converting a large project from Delphi to FPC. It turns
out that a base class has a property Count, and a derived class has a function
with the same name Count. This will compile, untill you call the property or
function Count.
I created an example that should explain it. Uncomment the marked line to get
the fatal internal error:
program project1;
{$mode objfpc}{$H+}
uses
{$IFDEF UNIX}{$IFDEF UseCThreads}
cthreads,
{$ENDIF}{$ENDIF}
Classes;
type
TBase = class
private
function GetCount: Integer;
public
property Count: Integer read GetCount;
end;
TSub = class(TBase)
public
function Count: Integer; overload;
end;
function TSub.Count: Integer;
begin
Result := 0;
end;
{ TBase }
function TBase.GetCount: Integer;
begin
Result := 0;
end;
var
MySub: TSub;
i : Integer;
begin
MySub := TSub.Create;
// uncomment the next line for Fatal Internal error 200111022:
// for i := 0 to MySub.Count do begin end;
end.
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