::[shapeless.Succ[shapeless._0],shapeless.::[shapeless.Succ[shapeless.Succ[shapeless._0]],shapeless.HNil]]]{type Out = shapeless.::[shapeless.Succ[shapeless.Succ[shapeless._0]],shapeless.::[<e
::[shapeless.record.FieldType[shapeless.tag.@@[Symbol,String("foo")],Int],shapeless.::[shapeless.record.FieldType[shapeless.tag.::[Int with shapeless.record.KeyTag[Symbol with shapeless.tag.Tagged[String("foo")],Int],
= shapeless.::[String with shapeless.labelled.KeyTag[Symbol with shapeless.tag.Tagged[String("name")],String],shapeless::[Int with shapeless.labelled.KeyTag[Symbol with shapeless.tag.Tagged[String("red")],Int],shapeless</e
import shapeless.Typeable._import shapeless.labelled.FieldType
import shapeless.record[String] with shapeless.labelled.KeyTag[Symbol with shapeless.tag.Tagged[String("test")],Long with shapeless.tag.Tagged[S
::[B]
required: shapeless.::[String with shapeless.labelled.KeyTag[Symbol with shapeless.tag.Tagged[String("name")],String],shapeless::[Int with shapeless.labelled.KeyTag[Symbol with shapeless.tag.Tagged[String("numberOfCherries&q
import shapeless._import shapeless.labelled._
type BestBeforeDate = Record[Nothing,None.type] :: None.type with shapeless.labelled.KeyTag[Nothing,None.type] :: Int with shapeless.labelled.KeyTag[Nothing,Int] :: shapeless</e
下面是shapeless 2.3.3中的一个简单示例: val book = ("title" ->>尽管v2在语法上与v1相同,但最后一行给出了以下错误: : could not find implicit value for parameter c: shapeless.ops.hlist.IsHCons[com.tribbloids.spike.shapeless</
:+:[Main.Foo1 with shapeless.labelled.KeyTag[Symbol with shapeless.tag.Tagged[String("Foo1")],Main.Foo1],shapeless.:+:[Main.Foo2 with shapeless.labelled.KeyTag[Symbol with shapeless.tag.Tagged[String("Foo2")],Main.Foo2],shapeless</
有一件非常基本的事情我不能理解:import syntax.singleton._could not find implicit value for parameter withKeys: shapeless.ops.hlist.ZipWithKeys[shapeless.::[String,shapeless.HNil],shapeless.::[S
我正在尝试实现像这样的东西 import shapeless._ import io.circeFieldType[subj.type, String] :: HNil]编译时不会出现错误error: could not find implicit value for parameter encode: shapeless.Lazy[io.circe.generic.encoding.DerivedObjectEncod