In fact the question comes from the fact that they are not polymorphic and you should know if you're manipulating a closable stream or not...
Maybe a solution is indeed to use #writeStreamDo:, that should behave well even for in-memory, collection streams, no? On Thu, Jun 29, 2017 at 4:58 PM, Sven Van Caekenberghe <s...@stfx.eu> wrote: > > > On 29 Jun 2017, at 16:07, Jérémie Regnault <jeremie.regna...@outlook.com> > wrote: > > > > Hi, > > > > I am writing tests with streams, and I noticed that a stream opened on a > > string doesn't close, but FileStreams do close. Is it normal ? > > How do you mean that ? That FileStreams close automatically ? > > That is indeed the case, that they are closed as a finalization action > (i.e. when they become garbage), but that I consider that a fail safe > thing, not something you should rely on. They should be properly closed, > like #readStreamDo: and #writeStreamDo: do. > > Streams over collections such as Strings do not need closing, as there is > no opening either. But general stream code better does. > > > -- > > Jérémie Regnault > > > > > -- Guille Polito Research Engineer French National Center for Scientific Research - *http://www.cnrs.fr* <http://www.cnrs.fr> *Web:* *http://guillep.github.io* <http://guillep.github.io> *Phone: *+33 06 52 70 66 13
