Thank you Sven! This is really convenient. SortFunctions are really cool.
Esteban A. Maringolo On Tue, Jun 30, 2020 at 6:06 PM Sven Van Caekenberghe <s...@stfx.eu> wrote: > > Hi Stef, > > With the following commit > https://github.com/svenvc/ston/commit/3565d388172b76c180454575d4c2f71019f130c4 > > there is now basic support for SortCollections using SortFunctions. > > All of the following can now be serialised and materialised by STON (see > #testSortedCollections): > > SortedCollection new. > SortedCollection new: 0. > > #(5 3 7 2 1 4 10 9 8 6) asSortedCollection. > > #(5 3 7 2 1 4 10 9 8 6) asSortedCollection: #yourself ascending. > #(5 3 7 2 1 4 10 9 8 6) asSortedCollection: #yourself descending. > > #('****' '*' '*****' '**' '***') asSortedCollection: #size ascending. > #('****' '*' '*****' '**' '***') asSortedCollection: #size descending. > > #(5 3 7 2 1 4 10 nil 9 8 6) asSortedCollection: #yourself ascending > undefinedFirst. > #(5 3 7 2 1 4 10 nil 9 8 6) asSortedCollection: #yourself ascending reversed > undefinedLast. > > I think this trick covers a large set of SortedCollection use cases avoiding > blocks by using SortFunctions. > > This technique could also be used to replace other block usages elsewhere. > > To answer your original question: yes we could add this to the documentation > (although right now it is very new and unproven). > > Regards, > > Sven > > > On 28 Jun 2020, at 12:25, Stéphane Ducasse <stephane.duca...@inria.fr> > > wrote: > > > > > > > >> On 27 Jun 2020, at 16:58, Sven Van Caekenberghe <s...@stfx.eu> wrote: > >> > >> Hi Russ, > >> > >> The limitation of STON not being capable of serialising a block closure > >> still stands and will probably not change very soon (it open up the whole > >> language to be written out). > >> > >> You can work around this though, with sort functions for example. > >> > >> Here is an example: > >> > >> { 1->#one. 3->#three. 2->#two } sorted: (STON fromString: (STON > >> toStringPretty: #key ascending)). > >> > >> SortFunctions are really cool BTW (they can handles nil values elegantly). > >> > >> Sven > > > > Sven do you think that we should have a little section on this question in > > STON chapter. > > > > S > >
