Reduce type clutter #38
Description
Who doesn't love StaticArrays.Dynamic() all over the place? However, this makes exceptions a bit hard to read, and also types a bit hard to enter.
As an alternative, I suggest using one of the two following names for I/O instead: - or :. (These names may either be used internally and converted to Dynamic() only when Size() is called; or Dynamic might be used internally, and show for types overloaded instead. Both approaches are quite similar. I believe the first one is less fragile though; I've been quite burnt with overloads of show).
: : pros: it already means a full dimension, so it feels like the natural choice. cons: it is displayed as Colon(), which is still somewhat cluttery.
-: pros: it maximally reduces the type clutter since Tuple{-,2} is displayed as just that. Also, - is already usual mathematician-speak for “left unspecified”. cons: feels slightly a bit less usual than : in Julia.
(My preference would go to - for these reasons).