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aoiroaoino/scala2.scala

Last active June 13, 2021 10:48
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scala.Predef.intWrapper が機能していない？
Raw
scala2.scala
➜ /tmp scala
Welcome to Scala 2.13.6 (OpenJDK 64-Bit Server VM, Java 11.0.8).
Type in expressions for evaluation. Or try :help.
scala> val b: Byte = 1
val b: Byte = 1
scala> b.toHexString
val res0: String = 1
Raw
scala3.scala
➜ /tmp sdk use scala 3.0.0
Using scala version 3.0.0 in this shell.
➜ /tmp scala
scala> val b: Byte = 1
val b: Byte = 1
scala> b.toHexString
1 |b.toHexString
|^^^^^^^^^^^^^
|value toHexString is not a member of Byte.
|An extension method was tried, but could not be fully constructed:
|
| intWrapper(b)
scala> (b: Int).toHexString
val res0: String = 1
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