[fpc-devel] Fatal: Internal error 200111022
Hi, does anyone knows what the error "Fatal: Internal error 200111022" means?. Leonardo M. Ramé http://leonardorame.blogspot.com ___ fpc-devel maillist - fpc-devel@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-devel
[fpc-devel] Fatal: Internal error 200111022
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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[fpc-devel] Fatal: Internal error 200111022
> Can you please enter a bug-report for this, and simply mention these facts ? Done: http://bugs.freepascal.org/view.php?id=17675 ___ fpc-devel maillist - fpc-devel@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-devel
Re: [fpc-devel] Fatal: Internal error 200111022
Am 14.09.2010 01:13, schrieb Leonardo M. Ramé: > Hi, does anyone knows what the error "Fatal: Internal error 200111022" means?. > Something happened which should not happen ;) Looks like an error with overloading. Can you create a cut down example? ___ fpc-devel maillist - fpc-devel@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-devel
Re: [fpc-devel] Fatal: Internal error 200111022
Sorry Florian, the error happened trying to compile some auto-generated code with wrong property assignments, with overloaded setters. It's fixed now. Leonardo M. Ramé http://leonardorame.blogspot.com --- On Tue, 9/14/10, Florian Klaempfl wrote: > From: Florian Klaempfl > Subject: Re: [fpc-devel] Fatal: Internal error 200111022 > To: "FPC developers' list" > Date: Tuesday, September 14, 2010, 12:04 PM > Am 14.09.2010 01:13, schrieb Leonardo > M. Ramé: > > Hi, does anyone knows what the error "Fatal: Internal > error 200111022" means?. > > > > Something happened which should not happen ;) Looks like an > error with > overloading. Can you create a cut down example? > ___ > fpc-devel maillist - fpc-devel@lists.freepascal.org > http://lists.freepascal.org/mailman/listinfo/fpc-devel > ___ fpc-devel maillist - fpc-devel@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-devel
Re: [fpc-devel] Fatal: Internal error 200111022
Am 14.09.2010 19:39, schrieb Leonardo M. Ramé: > Sorry Florian, the error happened trying to compile some auto-generated code > with wrong property assignments, with overloaded setters. It's fixed now. In FPC or your code? > > Leonardo M. Ramé > http://leonardorame.blogspot.com > > > --- On Tue, 9/14/10, Florian Klaempfl wrote: > >> From: Florian Klaempfl >> Subject: Re: [fpc-devel] Fatal: Internal error 200111022 >> To: "FPC developers' list" >> Date: Tuesday, September 14, 2010, 12:04 PM >> Am 14.09.2010 01:13, schrieb Leonardo >> M. Ramé: >>> Hi, does anyone knows what the error "Fatal: Internal >> error 200111022" means?. >>> >> >> Something happened which should not happen ;) Looks like an >> error with >> overloading. Can you create a cut down example? >> ___ >> fpc-devel maillist - fpc-devel@lists.freepascal.org >> http://lists.freepascal.org/mailman/listinfo/fpc-devel >> > > > > ___ > fpc-devel maillist - fpc-devel@lists.freepascal.org > http://lists.freepascal.org/mailman/listinfo/fpc-devel > ___ fpc-devel maillist - fpc-devel@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-devel
Re: [fpc-devel] Fatal: Internal error 200111022
My code, don't worry. Leonardo M. Ramé http://leonardorame.blogspot.com --- On Tue, 9/14/10, Florian Klämpfl wrote: > From: Florian Klämpfl > Subject: Re: [fpc-devel] Fatal: Internal error 200111022 > To: "FPC developers' list" > Date: Tuesday, September 14, 2010, 4:01 PM > Am 14.09.2010 19:39, schrieb Leonardo > M. Ramé: > > Sorry Florian, the error happened trying to compile > some auto-generated code with wrong property assignments, > with overloaded setters. It's fixed now. > > In FPC or your code? > > > > > Leonardo M. Ramé > > http://leonardorame.blogspot.com > > > > > > --- On Tue, 9/14/10, Florian Klaempfl > wrote: > > > >> From: Florian Klaempfl > >> Subject: Re: [fpc-devel] Fatal: Internal error > 200111022 > >> To: "FPC developers' list" > >> Date: Tuesday, September 14, 2010, 12:04 PM > >> Am 14.09.2010 01:13, schrieb Leonardo > >> M. Ramé: > >>> Hi, does anyone knows what the error "Fatal: > Internal > >> error 200111022" means?. > >>> > >> > >> Something happened which should not happen ;) > Looks like an > >> error with > >> overloading. Can you create a cut down example? > >> ___ > >> fpc-devel maillist - fpc-devel@lists.freepascal.org > >> http://lists.freepascal.org/mailman/listinfo/fpc-devel > >> > > > > > > > > ___ > > fpc-devel maillist - fpc-devel@lists.freepascal.org > > http://lists.freepascal.org/mailman/listinfo/fpc-devel > > > > ___ > fpc-devel maillist - fpc-devel@lists.freepascal.org > http://lists.freepascal.org/mailman/listinfo/fpc-devel > ___ fpc-devel maillist - fpc-devel@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-devel
Re: [fpc-devel] Fatal: Internal error 200111022
Am 14.09.2010 21:31, schrieb Leonardo M. Ramé: > My code, don't worry. Well, I worry because no code to compile should be able to trigger an internal error. ___ fpc-devel maillist - fpc-devel@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-devel
Re: [fpc-devel] Fatal: Internal error 200111022
I understand. Sadly I can't reproduce the error anymore, my code was fixed yesterday, if I can get the broken code again I'll send it to you. Leonardo M. Ramé http://leonardorame.blogspot.com --- On Tue, 9/14/10, Florian Klämpfl wrote: > From: Florian Klämpfl > Subject: Re: [fpc-devel] Fatal: Internal error 200111022 > To: "FPC developers' list" > Date: Tuesday, September 14, 2010, 4:32 PM > Am 14.09.2010 21:31, schrieb Leonardo > M. Ramé: > > My code, don't worry. > > Well, I worry because no code to compile should be able to > trigger an > internal error. > ___ > fpc-devel maillist - fpc-devel@lists.freepascal.org > http://lists.freepascal.org/mailman/listinfo/fpc-devel > ___ fpc-devel maillist - fpc-devel@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-devel
Re: [fpc-devel] Fatal: Internal error 200111022
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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Re: [fpc-devel] Fatal: Internal error 200111022
On Wed, 20 Oct 2010, Birger Jansen wrote: Can you please enter a bug-report for this, and simply mention these facts ? Done: http://bugs.freepascal.org/view.php?id=17675 Thank you. Michael. ___ fpc-devel maillist - fpc-devel@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-devel
Re: [fpc-devel] Fatal: Internal error 200111022
On 20 Oct 2010, at 13:37, Michael Van Canneyt wrote: > Can you please enter a bug-report for this, and simply mention these facts ? > - Fix as suggested in Delphi mode > - Prohibit in ObjFPC mode ? Prohibiting it breaks the compilation of dom_html.pp: dom_html.pp(66,14) Error: Duplicate identifier "ClassName" Jonas___ fpc-devel maillist - fpc-devel@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-devel
Re: [fpc-devel] Fatal: Internal error 200111022
On 20 Oct 2010, at 14:56, Jonas Maebe wrote: > > On 20 Oct 2010, at 13:37, Michael Van Canneyt wrote: > >> Can you please enter a bug-report for this, and simply mention these facts ? >> - Fix as suggested in Delphi mode >> - Prohibit in ObjFPC mode ? > > Prohibiting it breaks the compilation of dom_html.pp: > > dom_html.pp(66,14) Error: Duplicate identifier "ClassName" And some more: fpgtkext.pp(78,14) Error: Duplicate identifier "UpdatePolicy" fpgtkext.pp(78,14) Hint: Identifier already defined in unit FPGTK at line 1276 ltelnet.pp(143,14) Error: Duplicate identifier "SocketClass" ltelnet.pp(143,14) Hint: Identifier already defined in unit LNET at line 214 lftp.pp(97,14) Error: Duplicate identifier "SocketClass" lftp.pp(97,14) Hint: Identifier already defined in unit LNET at line 214 Jonas___ fpc-devel maillist - fpc-devel@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-devel
Re: [fpc-devel] Fatal: Internal error 200111022
Jonas Maebe пишет: On 20 Oct 2010, at 13:37, Michael Van Canneyt wrote: Can you please enter a bug-report for this, and simply mention these facts ? - Fix as suggested in Delphi mode - Prohibit in ObjFPC mode ? Prohibiting it breaks the compilation of dom_html.pp: dom_html.pp(66,14) Error: Duplicate identifier "ClassName" If dom_html is the only problem, I think it can be fixed (by renaming ClassName). The w3.org specs has many property names which clash with Pascal reserved words (type, label, etc. That 'ClassName' was intended to be 'Class'.), so it's anyway impossible to follow the specs closely. Regards, Sergei ___ fpc-devel maillist - fpc-devel@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-devel
Re: [fpc-devel] Fatal: Internal error 200111022
On 20 Oct 2010, at 15:12, Sergei Gorelkin wrote: > Jonas Maebe пишет: >> Prohibiting it breaks the compilation of dom_html.pp: >> dom_html.pp(66,14) Error: Duplicate identifier "ClassName" > If dom_html is the only problem, I think it can be fixed (by renaming > ClassName). The w3.org specs > has many property names which clash with Pascal reserved words (type, label, > etc. That 'ClassName' > was intended to be 'Class'.), so it's anyway impossible to follow the specs > closely. Other than the ones from my second mail, Lazarus also has problems: comctrls.pp(930,14) Error: Duplicate identifier "Owner" comctrls.pp(930,14) Hint: Identifier already defined in unit CLASSES at line 497 (and probably more, since the compilation doesn't get further). I guess it's more realistic to allow it in all modes. Jonas___ fpc-devel maillist - fpc-devel@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-devel
Re: [fpc-devel] Fatal: Internal error 200111022
On 20.10.2010 15:33, Jonas Maebe wrote: On 20 Oct 2010, at 15:12, Sergei Gorelkin wrote: Jonas Maebe пишет: Prohibiting it breaks the compilation of dom_html.pp: dom_html.pp(66,14) Error: Duplicate identifier "ClassName" If dom_html is the only problem, I think it can be fixed (by renaming ClassName). The w3.org specs has many property names which clash with Pascal reserved words (type, label, etc. That 'ClassName' was intended to be 'Class'.), so it's anyway impossible to follow the specs closely. Other than the ones from my second mail, Lazarus also has problems: comctrls.pp(930,14) Error: Duplicate identifier "Owner" comctrls.pp(930,14) Hint: Identifier already defined in unit CLASSES at line 497 (and probably more, since the compilation doesn't get further). I guess it's more realistic to allow it in all modes. I don't know how others or the devs see that, but in my opinion its a very confusing possibilty to be able to redeclare e.g. "ClassName" (I shivered heavily when I read that). Like it's also confusing to have local variables in methods named like members of that class (which is forbidden in objfpc as well as you all might know). All these cases should be fixed (although that might break further code), but its for some greater good (less confusion for new users of such a class). Until the release after 2.4.2 all code will be fixed hopefully (what about adding a warning to 2.4.2 for such cases?). Regards, Sven ___ fpc-devel maillist - fpc-devel@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-devel
Re: [fpc-devel] Fatal: Internal error 200111022
On Wed, 20 Oct 2010, Sven Barth wrote: On 20.10.2010 15:33, Jonas Maebe wrote: On 20 Oct 2010, at 15:12, Sergei Gorelkin wrote: Jonas Maebe пишет: Prohibiting it breaks the compilation of dom_html.pp: dom_html.pp(66,14) Error: Duplicate identifier "ClassName" If dom_html is the only problem, I think it can be fixed (by renaming ClassName). The w3.org specs has many property names which clash with Pascal reserved words (type, label, etc. That 'ClassName' was intended to be 'Class'.), so it's anyway impossible to follow the specs closely. Other than the ones from my second mail, Lazarus also has problems: comctrls.pp(930,14) Error: Duplicate identifier "Owner" comctrls.pp(930,14) Hint: Identifier already defined in unit CLASSES at line 497 (and probably more, since the compilation doesn't get further). I guess it's more realistic to allow it in all modes. I don't know how others or the devs see that, but in my opinion its a very confusing possibilty to be able to redeclare e.g. "ClassName" (I shivered heavily when I read that). Like it's also confusing to have local variables in methods named like members of that class (which is forbidden in objfpc as well as you all might know). All these cases should be fixed (although that might break further code), but its for some greater good (less confusion for new users of such a class). Until the release after 2.4.2 all code will be fixed hopefully (what about adding a warning to 2.4.2 for such cases?). If prohibiting (my preferred option) would cause too much breakage, I would also think that a warning is the least we can do. I'm sure that the ComCtrls case above is a very dubious case indeed, I see very little reason to override TComponents 'Owner'. Michael.___ fpc-devel maillist - fpc-devel@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-devel
RE: Re: [fpc-devel] Fatal: Internal error 200111022
Hi Michael,
Yes, TSub.Count should be used. I agree that it is dirty and confusing. Best
would be to only have it work in Delphi mode.
Kind regards,
Birger
-Oorspronkelijk bericht-
Van: Michael Van Canneyt
Verzonden: wo 20-10-2010 13:22
Aan: FPC developers' list ;
Onderwerp: Re: [fpc-devel] Fatal: Internal error 200111022
>
> 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.
> > ___
> > fpc-devel maillist - fpc-devel@lists.freepascal.org
> > http://lists.freepascal.org/mailman/listinfo/fpc-devel
> >
> ___
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> http://lists.freepascal.org/mailman/listinfo/fpc-devel
>
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RE: Re: [fpc-devel] Fatal: Internal error 200111022
On Wed, 20 Oct 2010, Birger Jansen wrote:
Hi Michael,
Yes, TSub.Count should be used. I agree that it is dirty and confusing. Best
would be to only have it work in Delphi mode.
Hi,
Can you please enter a bug-report for this, and simply mention these facts ?
- Fix as suggested in Delphi mode
- Prohibit in ObjFPC mode ?
So it won't be forgotten.
Michael.
Kind regards,
Birger
-Oorspronkelijk bericht-
Van: Michael Van Canneyt
Verzonden: wo 20-10-2010 13:22
Aan: FPC developers' list ;
Onderwerp: Re: [fpc-devel] Fatal: Internal error 200111022
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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