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program tmoperator3;
{$MODE DELPHI}
type
{ TFoo }
PFoo = ^TFoo;
TFoo = record
private
class operator Initialize(var aFoo: TFoo);
class operator Finalize(var aFoo: TFoo);
public
F: Integer;
end;
{ TFoo }
class operator TFoo.Initialize(var aFoo: TFoo);
begin
WriteLn;
WriteLn('TFoo.Initialize');
aFoo.F := 1;
end;
class operator TFoo.Finalize(var aFoo: TFoo);
begin
if aFoo.F <> 2 then
Halt(2);
aFoo.F := 3;
WriteLn('TFoo.Finalize');
WriteLn;
end;
{ TBar }
type
TBar = class
private
F: TFoo;
end;
procedure Foo();
var
F: TFoo;
begin
if F.F <> 1 then
Halt(3);
F.F := 2;
end;
var
F: TFoo;
B: TBar;
PF: PFoo;
begin
WriteLn('=== Global variable [begin] ===');
WriteLn;
if F.F <> 1 then
Halt(4);
WriteLn('=== Local variable ===');
Foo();
WriteLn('=== Field in class ===');
B := TBar.Create();
if B.F.F <> 1 then
Halt(5);
B.F.F := 2;
B.Free;
WriteLn('=== New and Dispose ===');
New(PF);
if PF.F <> 1 then
Halt(6);
PF^.F := 2;
Dispose(PF);
WriteLn('=== InitializeArray and FinalizeArray ===');
GetMem(PF, SizeOf(TFoo));
InitializeArray(PF, TypeInfo(TFoo), 1);
if PF.F <> 1 then
Halt(7);
PF^.F := 2;
FinalizeArray(PF, TypeInfo(TFoo), 1);
if PF^.F <> 3 then
Halt(8);
FreeMem(PF);
WriteLn('=== Initialize and Finalize ===');
GetMem(PF, SizeOf(TFoo));
Initialize(PF^);
if PF.F <> 1 then
Halt(9);
PF^.F := 2;
Finalize(PF^);
if PF^.F <> 3 then
Halt(10);
FreeMem(PF);
F.F := 2;
WriteLn('=== Global variable [end] ===');
end.
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