function arrowvector()

in src/arraytypes/unions.jl [245:286]

• 42 lines of code
• 7 McCabe index (conditional complexity)

function arrowvector(::UnionKind, x, i, nl, fi, de, ded, meta; kw...)
    UT = eltype(x)
    if unionmode(UT) == Meta.UnionMode.Dense
        x = x isa DenseUnionVector ? x.itr : x
        typeids, offsets, data = todense(UT, x)
        data2 = map(
            y -> arrowvector(y[2], i, nl + 1, y[1], de, ded, nothing; kw...),
            enumerate(data),
        )
        UT2 = uniontypewith(UT, Tuple{(eltype(x) for x in data2)...})
        return DenseUnion{Union{(eltype(x) for x in data2)...},UT2,typeof(data2)}(
            UInt8[],
            UInt8[],
            typeids,
            offsets,
            data2,
            meta,
        )
    else
        x = x isa SparseUnionVector ? x.itr : x
        typeids = sparsetypeids(UT, x)
        data3 = Tuple(
            arrowvector(
                ToSparseUnion(fieldtype(eltype(UT), j), x),
                i,
                nl + 1,
                j,
                de,
                ded,
                nothing;
                kw...,
            ) for j = 1:fieldcount(eltype(UT))
        )
        UT2 = uniontypewith(UT, Tuple{(eltype(x) for x in data3)...})
        return SparseUnion{Union{(eltype(x) for x in data3)...},UT2,typeof(data3)}(
            UInt8[],
            typeids,
            data3,
            meta,
        )
    end
end