英文:
Is there a Scala 3 specific standard library or is it just inherited from Scala 2?
问题
Scala 3是否使用了Scala 2标准库中的所有集合？（Scala的“标准库”包括哪些元素？）
Scala 3是否有特定的“标准库”？
是否有计划将Scala 2库重新实现为Scala 3？
我在寻找Scala 3中的不可变列表的实现，但我意识到dotty存储库中似乎没有这样的东西。
我原本希望在dotty存储库中找到Scala 2列表的实现。
英文:
Is it the case that Scala 3 uses all the collections from Scala 2 standard library? (What elements Scala "standard library" consists of?)
Is there any Scala 3 specific "standard library"?
Are there plans to reimplement Scala 2 libraries to Scala 3?
I was looking for an implementation of an immutable list in Scala 3 and I realized that there seems to be no such thing in the dotty repo.
I was expecting to find an implementation of Scala 2 list in the dotty repo as well.
答案1
得分: 4
标准库在 Scala 3 和 Scala 2.13 之间共享，并作为 Scala 2.13 的一部分进行维护。
标准库经过重构/重新设计，仅使用同时存在于 Scala 2.13 和 Scala 3 中的语言特性。
（注：当我提到“Scala 3”和“Scala 2.13”时，我指的是具有这些版本号的实现。Scala 语言规范并未说明标准库的实现方式。）
英文:
The standard library is shared between Scala 3 and Scala 2.13 and is maintained as part of Scala 2.13.
The standard library was refactored / re-engineered such that it only uses language features that exist in both Scala 2.13 and Scala 3.
(Note: when I write "Scala 3" and "Scala 2.13", I mean the implementations with those version numbers. The Scala Language Specification does not say anything about how the standard library is implemented.)
答案2
得分: 2
Scala 2.13标准库是Scala 3标准库的一部分
"org.scala-lang" % "scala-library" % "2.13.10"
https://mvnrepository.com/artifact/org.scala-lang/scala-library
https://search.maven.org/artifact/org.scala-lang/scala-library/2.13.10/jar
https://github.com/scala/scala/tree/2.13.x/src/library/scala
标准库
一个值得注意的例子是Scala 2.13库。我们确实决定了
Scala 2.13库是Scala 3的官方标准库。值得注意的是标准库是由构建工具自动提供的，不需要手动配置。
但Scala 3标准库还包括Scala 3特定的部分（包括scala.deriving，scala.compiletime，scala.quoted，scala.reflect，scala.runtime，scala.util，scala.annotation）
"org.scala-lang" % "scala3-library_3" % "3.2.2"
或者
"org.scala-lang" %% "scala3-library" % "3.2.2"
https://mvnrepository.com/artifact/org.scala-lang/scala3-library
https://search.maven.org/artifact/org.scala-lang/scala3-library_3/3.2.2/jar
https://github.com/lampepfl/dotty/tree/main/library/src/scala
英文:
Scala 2.13 standard library is a part of Scala 3 standard library
"org.scala-lang" % "scala-library" % "2.13.10"
https://mvnrepository.com/artifact/org.scala-lang/scala-library
https://search.maven.org/artifact/org.scala-lang/scala-library/2.13.10/jar
https://github.com/scala/scala/tree/2.13.x/src/library/scala
> The Standard Library
>
> One notable example is the Scala 2.13 library. We have indeed decided
> that the Scala 2.13 library is the official standard library for Scala
> 3.
>
> Let’s note that the standard library is automatically provided by the
> build tool, you should not need to configure it manually.
But there is also additional Scala 3 specific part of Scala 3 standard library (packages scala.deriving, scala.compiletime, scala.quoted, scala.reflect, scala.runtime, scala.util, scala.annotation)
"org.scala-lang" % "scala3-library_3" % "3.2.2"
or
"org.scala-lang" %% "scala3-library" % "3.2.2"
https://mvnrepository.com/artifact/org.scala-lang/scala3-library
https://search.maven.org/artifact/org.scala-lang/scala3-library_3/3.2.2/jar
https://github.com/lampepfl/dotty/tree/main/library/src/scala
通过集体智慧和协作来改善编程学习和解决问题的方式。致力于成为全球开发者共同参与的知识库，让每个人都能够通过互相帮助和分享经验来进步。
评论