this post was submitted on 14 Nov 2024
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What no, inheritance is not for code sharing
Sound bite aside, inheritance is a higher level concept. That it "shares code" is one of several effects.
The simple, plain, decoupled way to share code is the humble function call, i.e. static method in certain langs.
I mostly come to prefer composition, this approach apparently even has a wiki page. But that's in part because I use Rust that forbids inheritance, and don't have such bullshit (from delegation wiki page):
Why would one substitute
b
asthis
when called fromb.a
is beyond me, seriously.