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78 строки
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78 строки
2.0 KiB
Plaintext
2023
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https://habr.com/ru/companies/otus/articles/776932/
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Kmetiuk - 2017:
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http://akmetiuk.com/posts/2017-05-12-implicits.html
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Patridge:
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http://www.slideshare.net/nkpart/scala-implicits
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Wyatt:
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http://www.slideshare.net/DerekWyatt1/scala-implicits-not-to-be-feared
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Allen:
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http://www.slideshare.net/shinolajla/taxonomy-ofscala
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http://www.slideshare.net/futurespective/23-implicits-12236589
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Kralik:
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http://kralikba.web.elte.hu/implicits0.html
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https://github.com/kralikba/scala-implicits
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Habr:
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http://habrahabr.ru/post/209850/
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http://stackoverflow.com/documentation/scala/1732/implicits
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http://stackoverflow.com/questions/5598085/where-does-scala-look-for-implicits
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http://stackoverflow.com/questions/5332801/how-can-i-chain-implicits-in-scala
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compiler-options:
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-Xlog-implicits
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http://stackoverflow.com/questions/5080406/implicit-parameters-in-implicit-conversions
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Typeclasses:
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https://www.reddit.com/r/scala/comments/3n2u1d/demystifying_implicits_and_typeclasses_in_scala/
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http://www.cakesolutions.net/teamblogs/demystifying-implicits-and-typeclasses-in-scala
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1. Implicit parameters
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val a: A = ...
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implicit def (a: A): B = ...
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val b: B = a
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2.
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T % String
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for T is sub-type or implicit-converted to String
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3. Parameter groups
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fun1(...)(...)(...)
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function can have multiple parameter groups
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the last-one can be made implicit
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they can depend on the abstract parameters of prev-groups:
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def mungeData[D](d: D)(implicit m: Munger[D])
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and this works for higher-kinds:
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def mungeData[M[_], D)(d: D)(implicit m: Munger[D], each: Each[M])
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4. Companion objects - with the same name as a trait.
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any "implicit val <name> = new <trait-name> ..." will be available anywhere a <trait-name> is needed withou imports.
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5. Implicit Classes
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implicit class Person(name: String)
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implicit class Person(name: String)
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implicit final def Person(name: String): Person = new Person(name)
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6 implicitly keyword
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http://ru-scala.livejournal.com/59950.html
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7. annotation.implicitNotFound
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http://jsuereth.com/scala/2011/03/15/annotate-your-type-classes.html
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