fpc/tests/test/tgeneric1.pp
peter 1e123d66ba * improved generics
git-svn-id: trunk@8838 -
2007-10-18 00:24:05 +00:00

45 lines
793 B
ObjectPascal

{$mode objfpc}
type
generic TList<_T>=class(TObject)
data : _T;
procedure Add(item: _T);
end;
procedure TList.Add(item: _T);
begin
data:=item;
end;
type
TMyIntList = specialize TList<integer>;
TMyIntList2 = specialize TList<integer>;
TMyStringList = specialize TList<string>;
var
ilist : TMyIntList;
ilist2 : TMyIntList2;
slist : TMyStringList;
someInt : integer;
begin
someInt:=10;
ilist := TMyIntList.Create;
ilist.Add(someInt);
writeln(ilist.data);
if ilist.data<>10 then
halt(1);
someInt:=20;
ilist2 := TMyIntList2.Create;
ilist2.Add(someInt);
writeln(ilist2.data);
if ilist2.data<>20 then
halt(1);
slist := TMyStringList.Create;
slist.Add('Test');
writeln(slist.data);
if slist.data<>'Test' then
halt(1);
end.