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nested.scala
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nested.scala
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/*
* Copyright (c) 2015 Typelevel
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
package cats
package syntax
import cats.data.Nested
trait NestedSyntax {
implicit final def catsSyntaxNestedId[F[_], G[_], A](value: F[G[A]]): NestedIdOps[F, G, A] =
new NestedIdOps[F, G, A](value)
}
final class NestedIdOps[F[_], G[_], A](private val value: F[G[A]]) extends AnyVal {
/**
* Wrap a value in `Nested`.
*
* `x.nested` is equivalent to `Nested(x)`.
*
* Example:
* {{{
* scala> import cats.syntax.all._
* scala> List(Some(3), None).nested.map(_+1).value
* res0: List[Option[Int]] = List(Some(4), None)
* }}}
*/
def nested: Nested[F, G, A] = Nested[F, G, A](value)
}