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Simplify some type mappings for sparse arrays #700

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Simplify some type mappings for sparse arrays #700

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Simplify some type mappings for sparse arrays
kshyatt Apr 1, 2026
b822483
subtypes
kshyatt Apr 2, 2026
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16 changes: 8 additions & 8 deletions src/host/sparse.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -51,16 +51,16 @@ Base.similar(Mat::M) where {M<:AbstractGPUSparseMatrixCSC} = M(copy(SparseArrays
Base.similar(Vec::V, T::Type) where {Tv, Ti, V<:AbstractGPUSparseVector{Tv, Ti}} = sparse_array_type(V){T, Ti}(copy(SparseArrays.nonzeroinds(Vec)), similar(SparseArrays.nonzeros(Vec), T), length(Vec))
Base.similar(Mat::M, T::Type) where {M<:AbstractGPUSparseMatrixCSC} = sparse_array_type(M)(copy(SparseArrays.getcolptr(Mat)), copy(SparseArrays.rowvals(Mat)), similar(SparseArrays.nonzeros(Mat), T), size(Mat))

dense_array_type(sa::SparseVector) = SparseVector
dense_array_type(::Type{SparseVector}) = SparseVector
sparse_array_type(sa::SparseVector) = SparseVector
dense_vector_type(sa::AbstractSparseArray) = Vector
dense_vector_type(sa::AbstractArray) = Vector
dense_array_type(a::AbstractArray) = dense_array_type(typeof(a))
sparse_array_type(a::AbstractArray) = sparse_array_type(typeof(a))
dense_vector_type(a::AbstractArray) = dense_vector_type(typeof(a))

dense_array_type(::Type{<:SparseVector}) = SparseVector
sparse_array_type(::Type{<:SparseVector}) = SparseVector
dense_vector_type(::Type{<:AbstractSparseArray}) = Vector
dense_vector_type(::Type{<:AbstractArray}) = Vector
dense_array_type(sa::SparseMatrixCSC) = SparseMatrixCSC
dense_array_type(::Type{SparseMatrixCSC}) = SparseMatrixCSC
sparse_array_type(sa::SparseMatrixCSC) = SparseMatrixCSC
dense_array_type(::Type{<:SparseMatrixCSC}) = SparseMatrixCSC
sparse_array_type(::Type{<:SparseMatrixCSC}) = SparseMatrixCSC

function sparse_array_type(sa::AbstractGPUSparseArray) end
function dense_array_type(sa::AbstractGPUSparseArray) end
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