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{$mode objfpc}
type
generic TList<_T>=class(TObject)
public
var
data : _T;
procedure Add(item: _T);
procedure Assign(Source: specialize TList<_T>);
end;
procedure TList.Add(item: _T);
begin
data:=item;
end;
procedure TList.Assign(Source: specialize TList<_T>);
begin
data:=Source.data;
end;
type
TMyIntList = specialize TList<integer>;
TMyStringList = specialize TList<string>;
var
ilist1, ilist2 : TMyIntList;
slist1, slist2 : TMyStringList;
begin
ilist1 := TMyIntList.Create;
ilist1.add(10);
ilist2 := TMyIntList.Create;
ilist2.add(20);
ilist2.assign(ilist1);
if ilist2.data <> 10 then
halt(1);
slist1 := TMyStringList.Create;
slist1.add('test');
slist2 := TMyStringList.Create;
slist2.add('hello');
slist2.assign(slist1);
if slist2.data <> 'test' then
halt(1);
end.
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