Scala transform String to StringOps

Question

Scala seems to transform objects of type String to StringOps. How is this done? I.e. how and when does Scala transform an object of String to StringOps?

This is not a programming question, please narrow down to some issue, else it couldl get closed. — kebs
– kebs, Commented Nov 4, 2015 at 21:00
It actually is a programming question. You just should know Scala to understand it. (Well, no wonder, the question was tagged with "scala" after all.) — VasiliNovikov
– VasiliNovikov, Commented Nov 4, 2015 at 21:47

ntn · Accepted Answer · 2015-11-04 21:08:28Z

10

There is an implicit conversion defined from String to StringOps in Predef.scala. https://github.com/scala/scala/blob/a24ca7fa617cabada82c43d2d6ac354db698d181/src/library/scala/Predef.scala#L308. This converts a String instance to a StringOps instance if you call method from StringOps class on a String.

answered Nov 4, 2015 at 21:08

ntn

1,1771 gold badge8 silver badges11 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

VasiliNovikov Over a year ago

That by the way means that StringOps kicks in only when you call it. Otherwise the String is left to be String, no CPU time spent on any transformations.

user1578293 Over a year ago

Ok! Got it, thanks! I assume it's the same for all *Ops classes, like ArrayOps etc.

Collectives™ on Stack Overflow

Scala transform String to StringOps

1 Answer 1

2 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

2 Comments

Your Answer

Sign up or log in

Post as a guest

Related