Thank you very much for your help Regards Leon
On Sat, Apr 29, 2017 at 8:05 AM, Tobias Boege <tabo...@gmail.com> wrote: > On Sat, 29 Apr 2017, Leon Davis wrote: > > Gambas v3.9.2 using GTK+3 > > > > In Microsoft VB there is a "Friend" designation that allows classes in > the > > same project to access each others members while protecting those > members > > access from the dot notation. Example: a programmer cannot access a > friend > > member by typing "MyClass.ClassMember". Is that functionality available > in > > Gambas? > > It's not. I think the usual replacement pattern for this in Gambas is to > declare a pair of functions: > > Public Sub _SetClassMember(Value As Type) > Public Function _GetClassMember() As Type > > The leading underscore makes the function names hidden in the IDE, but you > can still access them despite being hidden: > > MyClass._SetClassMember(x) > Print MyClass._GetClassMember() > > Of course, this offers no real protection. Anyone can use these functions > from anywhere. You just have to keep the existence of these functions a > secret between MyClass and its "friends". For example, did you know that > gb.gui.base's GridView class lets you raise its Select event at will if > you call GridView._RaiseSelect()? > > Gambas has Public and Private for visibility, Read and the absence of Read > for access and Static for storage. I hope I remember correctly that Benoit > stated that he doesn't want the Gambas OO mechanisms to become as > convoluted > as C++'s. This probably includes the modifiers friend, protected, virtual, > final and what have you from other languages, as well as multiple > inheritance, > polymorphism (sadly) and operator overloading (which is actually available > to some extent for native components). > > Regards, > Tobi > > -- > "There's an old saying: Don't change anything... ever!" -- Mr. Monk > > ------------------------------------------------------------ > ------------------ > Check out the vibrant tech community on one of the world's most > engaging tech sites, Slashdot.org! http://sdm.link/slashdot > _______________________________________________ > Gambas-user mailing list > Gambas-user@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/gambas-user > ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user
