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I think this is one of the coolest things I've seen the Scala type system do. See how fields are defined, values supplied to them, monadic tasks defined, and then composed. The best bit: if you try anything that'd cause a runtime failure, Pyroclastic makes it a compile error.pic.twitter.com/EVE2ImsLsy
Note also the line, `Domain.over[Try]`. This will work over any monadic type which can be sequenced. The code is here, https://github.com/propensive/pyroclastic/ … and it works with Dotty and Scala 2, with a little extra boilerplate.
If you choose to abstract over `Future`, for example, then you get parallel execution for free.
could you recommend the best book to learn Scala for Java developers needing a practical and fast path to learn and use Scala? thanks;
I'm not sure I'm the best person to ask, as I didn't read any books while I was learning, but Programming in Scala by Odersky, Venners & Spoon is the route most people take. I'm not sure any books explain how the code above works, though, as I draw on lots of advanced features...
@threadreaderapp please unroll
Is this meant for hierarchical CLI params in fury?
I'm planning to use it in Fury for safely composing actions when running commands. There's a lot of duplication at the moment (e.g. making coffee or tea both require "preparation"), but I need the typechecking to stop me messing up value dependencies.
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