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Switching to OCaml bois (lemmy.world)

submitted 5 months ago by [email protected] to c/[email protected]

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[–] [email protected] 40 points 5 months ago (16 children)

The venerable master Qc Na was walking with his student, Anton. Hoping to prompt the master into a discussion, Anton said "Master, I have heard that objects are a very good thing - is this true?" Qc Na looked pityingly at his student and replied, "Foolish pupil - objects are merely a poor man's closures."

Chastised, Anton took his leave from his master and returned to his cell, intent on studying closures. He carefully read the entire "Lambda: The Ultimate..." series of papers and its cousins, and implemented a small Scheme interpreter with a closure-based object system. He learned much, and looked forward to informing his master of his progress.

On his next walk with Qc Na, Anton attempted to impress his master by saying "Master, I have diligently studied the matter, and now understand that objects are truly a poor man's closures." Qc Na responded by hitting Anton with his stick, saying "When will you learn? Closures are a poor man's object." At that moment, Anton became enlightened.

[–] [email protected] 13 points 5 months ago (15 children)

Can someone please enlighten me on what makes inheritance, polymorphism, an operator overloading so bad? I use the all regularly, and have yet to experience the foot cannons I have heard so much about.

[–] [email protected] 7 points 5 months ago

I don't really think it's any of those things in particular. I think the problem is there are quite a few programmers who use OOP, especially in Java circles, who think they're writing good code because they can name all the design patterns they're using. It turns out patterns like Factory, Model View Controller, Dependency Injection etc., are actually really niche, rarely useful, and generally overcomplicate an application, but there is a subset of programmers who shoehorn them everywhere. I'd expect the same would be said about functional programming if it were the dominant paradigm, but barely anyone writes large applications in functional languages and thus sane programmers don't usually come in contact with design pattern fetishists in that space.

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