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It doesn't have to be specified explicitly in this case, it can be inferred.
https://play.rust-lang.org/?version=stable&mode=debug&editio...
Probably just habit from GP to write out the return type, since collect so often can't be inferred. Or maybe to make it easier to change it to an intermediate value which you use ? with (at which point the type can no longer be inferred).
https://play.rust-lang.org/?version=stable&mode=debug&editio...
The reason is that `map`, `for_each` and the rest are not syntax and take closures. Closures in any language do not affect the control flow of their containing function.
These two annoyances could be resolved with:
- async iterators https://github.com/rust-lang/rust/issues/79024
- an extension trait for iterators over results: https://crates.io/crates/iterr
It was with deadpool, I don't recall the exact underlying reasons though: https://github.com/bikeshedder/deadpool/issues/104#issuecomm...
Yes. Not because of the developer, but because of how extremely flexible and dynamic the Lisp-family languages are. The power and joy of Lisp is in how it's almost a meta-language, so every project can become its own EDSL. The most famous (infamous?) example of this is Vacietis[2], which is a Common Lisp library that allows C code to be imported directly(!!).
[0] IIRC the Yesod framework's Warp does well on benchmarks, and when you look at code like https://github.com/yesodweb/wai/blob/master/warp/Network/Wai... you can see the lengths they had to go through to work around the choice of implementation language.
[1] Go has a garbage collector, but exposes the stack/heap distinction more directly than Haskell, so it's easier to write allocation-free code in hot paths.
[2] https://github.com/vsedach/Vacietis
Yes. Not because of the developer, but because of how extremely flexible and dynamic the Lisp-family languages are. The power and joy of Lisp is in how it's almost a meta-language, so every project can become its own EDSL. The most famous (infamous?) example of this is Vacietis[2], which is a Common Lisp library that allows C code to be imported directly(!!).
[0] IIRC the Yesod framework's Warp does well on benchmarks, and when you look at code like https://github.com/yesodweb/wai/blob/master/warp/Network/Wai... you can see the lengths they had to go through to work around the choice of implementation language.
[1] Go has a garbage collector, but exposes the stack/heap distinction more directly than Haskell, so it's easier to write allocation-free code in hot paths.
[2] https://github.com/vsedach/Vacietis