circeについて - tototoshi の日記
混迷極まるScalaのJsonライブラリ事情ですが、最近はcirceというライブラリもメジャーになってきました。ただ個人的にはあまり仕事では採用する気にはならないライブラリです。 catsに依存している circeの売りとして、cats以外のライブラリに依存していないというものがあるんですが、catsに依存してるという時点ですでに判断が別れるところだと思います。私はscalazやcatsは仕事ではほぼ使ったことがないので依存ライブラリがcatsに依存しているのは結構嫌です。またscalaz派から見ても同じようなライブラリが加わるのは嫌でしょう。 shapelessに依存している なぜcirceの人気が出てきたかといえば、おそらくgenericの存在ではないでしょうか。 play-jsonでは毎回 implicit val hogeFormat = Json.Format[Hoge] を書か
tiger.dvi
Java 2 Standard Edition 5.0 Tiger Java 3 7 2013 10 25 Copyright 2004, 2005, 2009, 2010, 2013 Yoshiki Shibata. All rights reserved. iii Tiger, Tiger burning bright Like a geek who works all night What new-fangled bit or byte Could ease the hacker’s weary plight? – Joshua Bloch Tiger Java 2 Standard Edition 5.0 Java Java 1.1 1.4 assert 5.0 Java 5.0 1.4 Java 5.0 Java 1.4 1.4 5.0 5.0 5.0 Java type par
GHC Generics Explained
Email Submitted successfully Thank you for subscribing to our newsletter! This tutorial will get you up to speed with GHC generics quickly. It should be noted that generics is not something academic and useless, quite the contrary, it's a very pragmatic way to reduce the amount of boilerplate (and associated with it errors) in your functional code with minimal mental overhead. In fact, by the time
Cooking Classes with Datatype Generic Programming
Cooking Classes with Datatype Generic Programming Haskell Generics are a somewhat misunderstood topic but are an extremely powerful technique for writing reusable and comparable interfaces across an enormous universe of types with very little effort. They are probably my favorite example of the advantages of an expressive type system endows us with. Source for examples code is available here. Gene
GHC.Generics - HaskellWiki
GHC 7.2 includes improved support for datatype-generic programming through two features, enabled with two flags: DeriveGeneric and DefaultSignatures. We show how this all works in this page, starting with a detailed example.
Datatype-Generic Programming in Haskell | SkillsCast
Haskell's deriving construct is both wonderful and magical at the same time: it is wonderful, because with just a single line of code, you can obtain functionality such as(de)serialization, comparison and traversal functions for your newly defined datatype; it is magical because all of this happens behind the scenes, by code deeply built into the compiler. But does it have to be magic? Since recen
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