如何保存REPL会话？

Question

是否可以在文件中保存REPL会话？是否有最低版本的Scala需要这样做？我记得曾见过有人这样做,但我无法将其解决:帮助或文档.

Answer 1

这可以从Scala 2.11开始.用法示例:

scala> 1
res0: Int = 1

scala> 2
res1: Int = 2

scala> 3
res2: Int = 3

scala> :save xxx

scala> :load xxx
Loading xxx...
res3: Int = 1
res4: Int = 2
res5: Int = 3

您可以:reset在a之前:load获得对结果的正确引用:

scala> 1
res0: Int = 1

scala> res0 + 1
res1: Int = 2

scala> :save xxx

那天晚些时候...

scala> 7
res0: Int = 7

scala> :reset
Resetting interpreter state.
Forgetting this session history:

7

Forgetting all expression results and named terms: $intp

scala> :load xxx
Loading xxx...
res0: Int = 1
res1: Int = 2