Comments (7)
RACTuple
's main use is holding nil
in a collection.
from reactivecocoa.
Hmm, that is a problem, but I don't like how terrible tuples are to work with right now.
Maybe RACTuple
could be a special RACSequence
subclass which maps to and from RACTupleNil
as appropriate, similarly to how it uses NSArray
internally right now?
from reactivecocoa.
Yep, that'd work.
from reactivecocoa.
Depends on whether you want a tuple class at all really.
I find it a bit strange that +combineLatest:
takes an NSArray
as a parameter, but then returns a RACTuple
.
The fact that in +combineLatest:reduce:
the reduceBlock
is given parameters separately instead of wrapped in a RACTuple
seems to imply tuples are the expected way of handling the combined subscribables, but the fact that RACTuple
is a collection object that can be iterated on doesn't really confirm that.
If RACTuple
's aim is only to simplify handling nil
in collections, which by itself is already a very handy thing, then a special sequence instead of a different class seems to be better. A method could be added to RACSequence
(or to RACStream
even) to convert any sequence to it's equivalent automatically-converting nil
version.
If instead RACTuple
is supposed to be a tuple, I think having a tuple sequence is very confusing.
from reactivecocoa.
I'm not sure the added conceptual weight of RACTuple
is worth it. Tuples don't really give us anything sequences couldn't. The semantic difference is nice but pretty foreign in Cocoa and without any real payoff.
from reactivecocoa.
On second thought, from what I can see RACTuple
is pretty much an internal class born from the necessity of having RACSignal
distinguish between nil
and +[NSNull null]
since both are valid values.
I don't think it's going to be useful to combine it with RACSequence
given it's purpose.
from reactivecocoa.
Now that RACTupleUnpack
exists it has a more useful role as a true tuple.
from reactivecocoa.
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from reactivecocoa.