Lightweight package meant to provide functionality and syntax for swizzling operations.
Swizzling is defined for any linearly indexable object, the main example of which are AbstractVector.
julia> using Swizzles
julia> v = [10, 20, 30, 40];
julia> swizzle(v, 3, 1)
2-element Vector{Int64}:
30
10Besides extracting vector components, swizzling may be used for mutation, with swizzle!:
julia> v = [10, 20, 30, 40];
julia> swizzle!(v, [1, 2], 4, 2)
2-element Vector{Int64}:
1
2
julia> v
4-element Vector{Int64}:
10
2
30
1Additionally, a @swizzle macro is defined which provides nice syntax for it:
julia> v = [10, 20, 30, 40];
julia> @swizzle v.xy
2-element Vector{Int64}:
10
20
julia> @swizzle v.rgb
3-element Vector{Int64}:
10
20
30
julia> @swizzle v.xyx
3-element Vector{Int64}:
10
20
10
julia> @swizzle v.wx = [1, 2]
2-element Vector{Int64}:
1
2
julia> v
4-element Vector{Int64}:
2
20
30
1See the documentation to know more about the motivation for this functionality and a complete reference beyond what was shown here.