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Implement size for Tensor type #2

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merged 1 commit into from
Jan 23, 2021
Merged

Implement size for Tensor type #2

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3 changes: 2 additions & 1 deletion src/tensor.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -134,7 +134,8 @@ end

# for AbstractArray interface
Base.IndexStyle(::Type{<: Tensor}) = IndexLinear()
Base.size(x::Tensor) = size(serialindices(x))
@generated Base.size(::Type{TT}) where {TT <: Tensor}= :(size($(TensorIndices(TT))))
Base.size(x::Tensor) = size(typeof(x))

# helpers
Base.Tuple(x::Tensor) = x.data
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8 changes: 8 additions & 0 deletions test/tensor.jl
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Expand Up @@ -168,3 +168,11 @@ end
@test count(==(v), x) == dups[i]
end
end

@testset "Tensor misc" begin
# size
TT = Tensor{Tuple{2, 3}}
@test (@inferred size(TT))::Tuple{Int, Int} == (2,3)
TT = Tensor{Tuple{2, 3, @Symmetry{3, 3}}}
@test (@inferred size(TT))::Tuple{Int, Int, Int, Int} == (2,3,3,3)
end