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define compute_itspace if it is not defined #106

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Mar 4, 2024
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define compute_itspace if it is not defined #106

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21 changes: 20 additions & 1 deletion src/algorithms/SMS_EMOA/calc-hv.jl
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Original file line number Diff line number Diff line change
@@ -1,9 +1,28 @@
#in julia 1.11 and above, compute_itspace was removed.
if isdefined(Base,:compute_itspace)
compute_itspace(A,v) = Base.compute_itspace(A,v)
else
# Works around inference's lack of ability to recognize partial constness
struct DimSelector{dims, T}
A::T
end

DimSelector{dims}(x::T) where {dims, T} = DimSelector{dims, T}(x)
(ds::DimSelector{dims, T})(i) where {dims, T} = i in dims ? axes(ds.A, i) : (:,)

function compute_itspace(A, ::Val{dims}) where {dims}
negdims = filter(i->!(i in dims), 1:ndims(A))
axs = Iterators.product(ntuple(DimSelector{dims}(A), ndims(A))...)
vec(permutedims(collect(axs), (dims..., negdims...)))
end
end

function sortslicesperm(A::AbstractArray; dims::Union{Integer, Tuple{Vararg{Integer}}}, kws...)
_sortslicesperm(A, Val{dims}(); kws...)
end

function _sortslicesperm(A::AbstractArray, d::Val{dims}; kws...) where dims
itspace = Base.compute_itspace(A, d)
itspace = compute_itspace(A, d)
vecs = map(its->view(A, its...), itspace)
p = sortperm(vecs; kws...)
if ndims(A) == 2 && isa(dims, Integer) && isa(A, Array)
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