I think most devs are unreasonably averse to multi-language codebases, and overestimate how difficult it is to get different languages to communicate. Am I full of shit?
(I'm ignoring areas where multi-lang work is all-but-mandatory, like web dev.)
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I think it's not so much that it's hard to get different languages to communicate - it's difficult to make sure that the communication is safe statically.
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Can also be frustrating to have to manage multiple runtimes.
right - FFI to something like C isn't too bad, it's usually tightly scoped and there isn't a heavy runtime to manage. I wrote a bridge between Ruby and Haskell back in the dark ages and I am grateful every day I never deployed it in production.
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Indeed. We're doing Rust<-C->Mercury, and we don't have much trouble.
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