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{ %target=darwin }
{ %cpu=powerpc,powerpc64,i386,x86_64,arm }
{ Written by Jonas Maebe in 2010, released into the public domain }
{$mode objfpc}
{$modeswitch objectivec1}
// check whether we can override methods added to a class via a category
// (mainly required because the way Apple deprecates methods is by moving
// them from class definitions to NSDeprecated category definitions)
type
MyCategory = objccategory(NSObject)
procedure extraproc(a: longint); message 'extraproc:';
end;
MyObject = objcclass(NSObject)
// overrides extraproc added to NSObject
procedure extraproc(a: longint); override;
end;
procedure MyCategory.extraproc(a: longint);
begin
if a<>1 then
halt(1);
end;
procedure MyObject.extraproc(a: longint);
begin
if a<>2 then
halt(2);
inherited extraproc(1);
end;
var
a: NSObject;
b: MyObject;
begin
a:=NSObject.alloc.init;
a.extraproc(1);
a.release;
b:=MyObject.alloc.init;
b.extraproc(2);
b.release;
end.
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