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Today dry-monads reaches 1.0! It started as a dependency replacement for the Kleisli gem in dry-transaction and dry-types. Later, more common monads were added, as well as support for do notation, which evaporates most of the boilerplate introduced by monads. Since the dry-* gems follow semantic versioning, this means you can consider the dry-monads API to be stable, making the gem more "productio
Monad is a design pattern used to describe computations as a series of steps. They are extensively used in pure functional programming languages to manage side effects but can also be used in multiparadigm languages to control complexity. Monads wrap types giving them additional behavior like the automatic propagation of empty value (Maybe monad) or simplifying asynchronous code (Continuation mona
HaskellのContinuationモナドを雰囲気だけGaucheに移植してみる。 Contクラス まず、疑似Continuationモナドとして、Contクラスを作る。 Contクラスが持つrunContスロットは同名のgetter関数を持つ。 returnは全然ジェネリックファンクションになってないんだけど、>>=と横並びにしたかったので。 (define-class <Cont> () ((runCont :init-keyword :r :getter runCont))) (define-method return (a) (make <Cont> :r (lambda (k) (k a)))) (define-method >>= ((c <Cont>) f) (make <Cont> :r (lambda (k) ((runCont c) (lambda (a) ((ru
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