* new bug

tests/webtbs/tw3456.pp

@@ -0,0 +1,124 @@
+{ Source provided for Free Pascal Bug Report 3456 }
+{ Submitted by "Ales Katona (Almindor)" on  2004-12-18 }
+{ e-mail: [email protected] }
+program objtest;
+
+{$ifdef fpc}
+  {$mode objfpc}
+{$endif}
+{$ifdef win32}
+  {$apptype console}
+{$endif}
+
+uses
+// Cmem, // comment out to get the crash
+     SysUtils, Contnrs;
+
+const
+{$ifdef cpusparc}
+  loopcnt = 10000;
+{$else}
+  loopcnt = 1000000;
+{$endif}
+
+type TClassRoot = class
+      public
+       function Make: TClassRoot; virtual; abstract;
+     end;
+
+     TClassB = class;
+
+     TClassA = class(TClassRoot)
+      private
+       x: longint;
+      public
+       constructor Create;
+       destructor Destroy; override;
+       function Make: TClassRoot; override;
+     end;
+
+     TClassB = class(TClassRoot)
+      private
+       x: longint;
+      public
+       constructor Create;
+       destructor Destroy; override;
+       function Make: TClassRoot; override;
+     end;
+
+constructor TClassA.Create;
+begin
+  x:=1;
+end;
+
+destructor TClassA.Destroy;
+begin
+  x:=0;
+end;
+
+function TClassA.Make: TClassRoot;
+begin
+  result:=TClassB.Create;
+end;
+
+constructor TClassB.Create;
+begin
+  x:=2;
+end;
+
+destructor TClassB.Destroy;
+begin
+  x:=0;
+end;
+
+function TClassB.Make: TClassRoot;
+begin
+  result:=TClassA.Create;
+end;
+
+procedure proca;
+var i: longint;
+    list: TObjectList;
+    time: double;
+begin
+  writeln('List test');
+  time:=now;
+  list:=TObjectList.Create(true);
+  list.add(TClassA.Create);
+  for i:=1 to loopcnt do
+    list.add(TClassRoot(list.last).Make);
+  list.free;
+  time:=now-time;
+  writeln(time);
+end;
+
+procedure procb;
+var i: longint;
+    ar: array of TClassRoot;
+    time: double;
+begin
+  writeln('Array test');
+  time:=now;
+  setlength(ar, loopcnt+1);
+  ar[0]:=TClassA.Create;
+  for i:=1 to loopcnt do
+   begin
+    if i=65535 then
+      time:=time;
+    ar[i]:=ar[i-1].Make;
+   end;
+  for i:=0 to loopcnt do
+   begin
+    if i=65535 then
+      time:=time;
+    ar[i].free;
+    end;
+  time:=now-time;
+  writeln(time);
+end;
+
+begin
+  proca;
+  procb;
+end.
+