Is it possible to map enumeration to SVector?

[drelatgithub]

When I do the following:

v = SA[10, 20, 30]
map(x -> x[1] + x[2], enumerate(v))

The result is a 3-element Vector{Int64} of values 11, 22 and 33. Is it possible to get the result in SVector since the length is known at compile time (assuming that the codes above is inside a function, and that v has fixed but unknown length)?

Other methods I tried but not did not work:

1. I tried to use comprehension and macro @SVector, but it seems that in this case I need length(v) but its value is unknown during macro expansion.
2. I also tried eachindex(v) but it seems that the result is converted to MVector instead of SVector. This part seems to have been covered in map SOneTo to SVector #1032

[mateuszbaran]

Yes, mapping such an enumeration should give an SVector. I will take a look, maybe it won't be hard to implement.

[mateuszbaran]

Since StaticArrays 1.5.10 it is possible to do static mapping of enumeration using enumerate_static (instead of enumerate):

julia> using StaticArrays

julia> v = SA[10, 20, 30]
3-element SVector{3, Int64} with indices SOneTo(3):
 10
 20
 30

julia> map(x -> x[1] + x[2], enumerate_static(v))
3-element SVector{3, Int64} with indices SOneTo(3):
 11
 22
 33