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Report From: Delphi-BCB/Compiler/Delphi/Generics [ Add a report in this area ]

Report #: 69973

Status: Closed

F2084 Internal Error: AV00485E89-W00000014-1 using absolute for a typed variable

Project: Delphi

Build #: 12.0.3210.17555

Version: 12.0

Submitted By: Uwe Schuster

Report Type: Crash / Data loss / Total failure

Date Reported: 12/17/2008 12:10:00 PM

Severity: Infrequently encountered problem

Last Updated: 9/5/2012 8:15:05 PM

Platform: All platforms

Internal Tracking #: 267385

Resolution: Fixed (Resolution Comments)

Resolved in Build: : 17.0.4625.53395

Duplicate of: None

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Description

It is not possible to use absolute with a typed variable in a generic class

procedure TFooList<T>.Notification(AComponent: TObject);
var
Item: T absolute AComponent;
begin
end;

-> see steps

This test case was extracted from the thread
"D2009 Generics: F2084 Internal Error: AV21B6B7A9-W00000014-1"
https://forums.codegear.com/thread.jspa?threadID=8752&tstart=0

Steps to Reproduce:

- save the attached file GenericsAbsoluteTest.dpr or the following code
- dcc32 GenericsAbsoluteTest.dpr

expected: it compiles
actual: GenericsAbsoluteTest.dpr(23) Fatal: F2084 Internal Error: AV00485E89-W00000014-1

program GenericsAbsoluteTest;

{$APPTYPE CONSOLE}

type
  TFooList<T> = class(TObject)
  public
    procedure Notification(AComponent: TObject);
  end;

  TBarList = TFooList<TObject>;

procedure TFooList<T>.Notification(AComponent: TObject);
var
  Item: T absolute AComponent;
begin
end;

begin
  WriteLn('PASS');
end.

Workarounds

None

Attachment

JED94CC.zip

Comments

None

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