On Fri, Mar 31, 2017 at 06:19:53PM +0900, Carsten Haitzler wrote: > On Fri, 31 Mar 2017 16:00:52 +0900 Conrad Um <con...@gmail.com> said: > > > This is similar to bu5hm4n's idea, but a little different. (Not pass by > > value, but reference) > > http://www.mail-archive.com/enlightenment-devel@lists.sourceforge.net/msg82744.html > > > > While studying oop, I found that properties are usually expressed as struct > > or object instead of multiple arguments. > > > > For example, "size" property usually accepts Size struct. > > public struct Size { > > int width; > > int height; > > } > > obj.size = new Size(100, 100); // This means "obj.setSize(new Size(100, > > 100));" > > > > In languages supporting property accessor expression like C# or Vala, > > multiple arguments cannot be expressed with that syntax. I think it is > > better to exchange a set of data in the type of object (or struct, it can > > be considered as simplified object). > > > > Former example can be translated into the next. > > Size size = { 100, 100 }; > > size_set(obj, &size); > > > > I know "size_set(obj, 100, 100)" is more simpler, but handling related > > variables with one set is more reasonable in point of oop. (Or we can add c > > wrapper function like calling eo API by legacy API for more simple function > > signature) > > > > What do you think of this? > > i've thought about this before, and realistically using such structs for size, > geometry, color etc. just is more of a pain than a gain. it theoretically > looks > nice but it just becomes far more of a pain in real life to use. in general > code gets longer and more verbose, not nicer.
I dont think so at all. Just take it as a example, what looks nicer: Eina_Rectangle root, button; [... here some geometry gets from those two] Or int root_x, root_y, root_w, root_h, button_x, button_y, button_w, button_h; [ ... here the rest] What is more verbose? Just take a look at the elm_scroller code how much pain it is there with all the coords definitions. (elm_scroller.c:85, the _key_action_move function) Also, just having the var name once and not 4 times maybe invites to find better var names than c & v :P Greetings bu5hm4n > > > Regards, > > Jeeyong Um (conr2d) > > ------------------------------------------------------------------------------ > > Check out the vibrant tech community on one of the world's most > > engaging tech sites, Slashdot.org! http://sdm.link/slashdot > > _______________________________________________ > > enlightenment-devel mailing list > > enlightenment-devel@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/enlightenment-devel > > > > > -- > ------------- Codito, ergo sum - "I code, therefore I am" -------------- > The Rasterman (Carsten Haitzler) ras...@rasterman.com > > > ------------------------------------------------------------------------------ > Check out the vibrant tech community on one of the world's most > engaging tech sites, Slashdot.org! http://sdm.link/slashdot > _______________________________________________ > enlightenment-devel mailing list > enlightenment-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/enlightenment-devel ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ enlightenment-devel mailing list enlightenment-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/enlightenment-devel
