Imported From: https://issues.scala-lang.org/browse/SI-9870?orig=1
Reporter: Franklin Zhang (chigou79)
Affected Versions: 2.12.0-M5

@soc said:
Hi Franklin,

proposals for language changes should first be discussed on the scala-debate/scala-internals mailing list.
I'm closing this for now, but if you get the go-ahead feel free to reopen.

Thanks!

(My personal opinion is that this hasn't a chance of being accepted as it would add an additional way of doing the same thing. The idea of postfix ops was that one could leave out the dot ... now the proposal is to reintroduce it with two dots instead? How would that retain the original benefit (of "one less dot to write")? How would 2 dots after a method be better than the existing way of adding one dot in front of the method?)

Franklin Zhang (chigou79) said (edited on Jul 26, 2016 12:55:17 PM UTC):
Thank you for telling me this, and sorry for having not described this clearly.
My idea is from manipulating collections from java by JavaConverters(JavaConversions is deprecated):

import scala.collection.JavaConverters._
import java.util.stream.Collectors

def xxx = someJavaStream collect Collectors.toList() asScala

and then, use it as a scala collection, but i can't continue directly because the method asScala can't be used as an infix operator, I should change it to:

def xxx = (someJavaStream collect Collectors.toList() asScala) map ......
or
def xxx = someJavaStream.collect(Collectors.toList()).asScala.map ....
or
def xxx = {
val sList = someJavaStream.collect(Collectors.toList()).asScala
sList map ....
}

this happened just because the method with zero args isn't able to be regarded as an operator, though i acknowledge using too much operators is not a good habit.

@dwijnand said:
That's a very good example [~chigou79].

Please open a topic about this on one of the mailing lists and link it here, because I would also like to be able to do this - but then I'm demonstrable in the infix-notation camp already.

Here's an example, present in sbt, of a workaround for essentially this issue - to allow for one to continue to use infix notation: https://github.com/sbt/sbt/blob/v0.13.12/ivy/src/main/scala/sbt/ModuleID.scala#L32-L34

Franklin Zhang (chigou79) said:
Thank you @dale Wijnand ! I had opened a topic in Scala-Internals yesterday. I can't reply to you in time for some problem of internet.

And sorry again to @simon Ochsenreither for giving you a dozen of mails because of my frequently editing my comment. I haven't used JIRA before. This must have bothered you.