scala - 如何在Scala中从a => b => c获得(a，b)=> c？

Question

如果我有:

val f : A => B => C

这是以下内容的简写:

val f : Function1[A, Function1[B, C]]

如何获得带有签名的函数 g:

val g : (A, B) => C = error("todo")

(即)

val g : Function2[A, B, C] //or possibly
val g : Function1[(A, B), C]

就 f而言？

Answer 1

scala> val f : Int => Int => Int = a => b => a + b
f: (Int) => (Int) => Int = <function1>

scala> Function.uncurried(f)
res0: (Int, Int) => Int = <function2>