Click here to Skip to main content
15,881,866 members

The Weird and The Wonderful

   

The Weird and The Wonderful forum is a place to post Coding Horrors, Worst Practices, and the occasional flash of brilliance.

We all come across code that simply boggles the mind. Lazy kludges, embarrassing mistakes, horrid workarounds and developers just not quite getting it. And then somedays we come across - or write - the truly sublime.

Post your Best, your worst, and your most interesting. But please - no programming questions . This forum is purely for amusement and discussions on code snippets. All actual programming questions will be removed.

 
GeneralRe: The changing landscape of OOP (from class to struct) Pin
raddevus25-Sep-23 8:29
mvaraddevus25-Sep-23 8:29 
GeneralRe: The changing landscape of OOP (from class to struct) Pin
haughtonomous26-Sep-23 21:53
haughtonomous26-Sep-23 21:53 
GeneralRe: The changing landscape of OOP (from class to struct) Pin
Jon McKee25-Sep-23 10:26
professionalJon McKee25-Sep-23 10:26 
GeneralRe: The changing landscape of OOP (from class to struct) Pin
raddevus25-Sep-23 10:36
mvaraddevus25-Sep-23 10:36 
GeneralRe: The changing landscape of OOP (from class to struct) Pin
Jeremy Falcon25-Sep-23 12:33
professionalJeremy Falcon25-Sep-23 12:33 
GeneralRe: The changing landscape of OOP (from class to struct) Pin
Jon McKee26-Sep-23 9:53
professionalJon McKee26-Sep-23 9:53 
GeneralRe: The changing landscape of OOP (from class to struct) Pin
Jeremy Falcon25-Sep-23 12:33
professionalJeremy Falcon25-Sep-23 12:33 
GeneralRe: The changing landscape of OOP (from class to struct) Pin
Jon McKee26-Sep-23 9:51
professionalJon McKee26-Sep-23 9:51 
I agree it's easy to go overboard with it. That's why I mentioned I feel like there has to be "more sauce" to the abstraction - e.g. an abstraction that abstracts multiple parameters, an abstraction that adds functionality, etc.

As a more concrete example with the Angle idea - you have Radians and Degrees as options (so Angle is basically an Either sum type) and Radians and Degrees are isomorphic.

Why is that useful? Here's some pseudo-code:
class Angle<T> = Radian<T> | Degree<T>
  (+) :: Angle a -> Angle b -> Angle c
  (+) x = match x 
    | Radian z => \y -> z + toRadian(y)
    | Degree z => \y -> z + toDegree(y)

public double addRightAngle(double degrees) => degrees + 90; //Fails if you pass in radians
public double addRightAngle(double radians) => radians + (90*(pi/180)); //Fails if you pass in degrees
public Angle<double> addRightAngle(Angle<double> angle) => angle + new Degree(90); //Succeeds in all cases
public Angle<double> addRightAngle(Angle<double> angle) => angle + new Radian(1.5708); //Succeeds in all cases

How useful this is depends on how important angles are to your code-base, but I think abstracting inputs is very powerful. Another example is if you're doing functional programming and have a function that accepts impure inputs like a database function. You can group all impure inputs together into a tuple and shift that tuple to the right of the parameter list. This effectively turns your function into a pure function that returns an impure Reader with that environment tuple as input and the result as output (i.e. "functional" dependency injection). Makes a lot of things easier especially unit testing. Credit to Mark Seemann for that insight[^].

modified 27-Sep-23 1:09am.

GeneralRe: The changing landscape of OOP (from class to struct) Pin
Jeremy Falcon27-Sep-23 2:36
professionalJeremy Falcon27-Sep-23 2:36 
GeneralRe: The changing landscape of OOP (from class to struct) Pin
Jon McKee28-Sep-23 14:17
professionalJon McKee28-Sep-23 14:17 
GeneralRe: The changing landscape of OOP (from class to struct) Pin
Richard Deeming25-Sep-23 22:02
mveRichard Deeming25-Sep-23 22:02 
GeneralRe: The changing landscape of OOP (from class to struct) Pin
trønderen26-Sep-23 9:31
trønderen26-Sep-23 9:31 
GeneralRe: The changing landscape of OOP (from class to struct) Pin
Jeremy Falcon27-Sep-23 3:17
professionalJeremy Falcon27-Sep-23 3:17 
GeneralRe: The changing landscape of OOP (from class to struct) Pin
RainHat26-Sep-23 0:02
RainHat26-Sep-23 0:02 
GeneralRe: The changing landscape of OOP (from class to struct) Pin
charlieg26-Sep-23 7:42
charlieg26-Sep-23 7:42 
GeneralRe: The changing landscape of OOP (from class to struct) Pin
trønderen26-Sep-23 9:47
trønderen26-Sep-23 9:47 
GeneralRe: The changing landscape of OOP (from class to struct) Pin
Nelek27-Sep-23 9:12
protectorNelek27-Sep-23 9:12 
GeneralRe: The changing landscape of OOP (from class to struct) Pin
haughtonomous26-Sep-23 21:11
haughtonomous26-Sep-23 21:11 
PraiseRe: The changing landscape of OOP (from class to struct) Pin
Jeremy Falcon27-Sep-23 4:17
professionalJeremy Falcon27-Sep-23 4:17 
GeneralRe: The changing landscape of OOP (from class to struct) Pin
Peter Adam26-Sep-23 22:20
professionalPeter Adam26-Sep-23 22:20 
GeneralRe: The changing landscape of OOP (from class to struct) Pin
Richard Deeming26-Sep-23 23:13
mveRichard Deeming26-Sep-23 23:13 
GeneralRe: The changing landscape of OOP (from class to struct) Pin
haughtonomous3-Oct-23 21:33
haughtonomous3-Oct-23 21:33 
GeneralRe: The changing landscape of OOP (from class to struct) Pin
Steve Naidamast27-Sep-23 4:19
professionalSteve Naidamast27-Sep-23 4:19 
GeneralRe: The changing landscape of OOP (from class to struct) Pin
raddevus27-Sep-23 8:51
mvaraddevus27-Sep-23 8:51 
GeneralRe: The changing landscape of OOP (from class to struct) Pin
haughtonomous3-Oct-23 21:40
haughtonomous3-Oct-23 21:40 

General General    News News    Suggestion Suggestion    Question Question    Bug Bug    Answer Answer    Joke Joke    Praise Praise    Rant Rant    Admin Admin   

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.