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generalize unmatricize to arbitrary axes #66

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Merged
merged 4 commits into from
Jul 16, 2025
Merged

generalize unmatricize to arbitrary axes #66

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a6459ff
remove types specializations
ogauthe Jul 15, 2025
6e1c58f
bump version
ogauthe Jul 16, 2025
e8191fd
remove unused method
ogauthe Jul 16, 2025
daaaf9e
recover type annotation
ogauthe Jul 16, 2025
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2 changes: 1 addition & 1 deletion Project.toml
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Original file line number Diff line number Diff line change
@@ -1,7 +1,7 @@
name = "TensorAlgebra"
uuid = "68bd88dc-f39d-4e12-b2ca-f046b68fcc6a"
authors = ["ITensor developers <[email protected]> and contributors"]
version = "0.3.9"
version = "0.3.10"

[deps]
ArrayLayouts = "4c555306-a7a7-4459-81d9-ec55ddd5c99a"
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31 changes: 6 additions & 25 deletions src/matricize.jl
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Expand Up @@ -74,56 +74,37 @@ function matricize(a::AbstractArray, permblock1::Tuple, permblock2::Tuple)
end

# ==================================== unmatricize =======================================
function unmatricize(
m::AbstractMatrix,
axes::Tuple{Vararg{AbstractUnitRange}},
biperm::AbstractBlockPermutation{2},
)
function unmatricize(m, axes, biperm::AbstractBlockPermutation{2})
length(axes) == length(biperm) || throw(ArgumentError("axes do not match permutation"))
return unmatricize(FusionStyle(m), m, axes, biperm)
end

function unmatricize(
::FusionStyle,
m::AbstractMatrix,
axes::Tuple{Vararg{AbstractUnitRange}},
biperm::AbstractBlockPermutation{2},
)
function unmatricize(::FusionStyle, m, axes, biperm::AbstractBlockPermutation{2})
blocked_axes = axes[biperm]
a_perm = unmatricize(m, blocked_axes)
return permuteblockeddims(a_perm, invperm(biperm))
end

function unmatricize(::ReshapeFusion, m::AbstractMatrix, axes::AbstractUnitRange...)
return reshape(m, axes...)
end

function unmatricize(
::ReshapeFusion,
m::AbstractMatrix,
blocked_axes::BlockedTuple{2,<:Any,<:Tuple{Vararg{AbstractUnitRange}}},
::ReshapeFusion, m, blocked_axes::BlockedTuple{2,<:Any,<:Tuple{Vararg{AbstractUnitRange}}}
)
return reshape(m, Tuple(blocked_axes)...)
end

function unmatricize(
m::AbstractMatrix, blocked_axes::BlockedTuple{2,<:Any,<:Tuple{Vararg{AbstractUnitRange}}}
)
function unmatricize(m, blocked_axes)
return unmatricize(FusionStyle(m), m, blocked_axes)
end

function unmatricize(
m::AbstractMatrix,
m,
codomain_axes::Tuple{Vararg{AbstractUnitRange}},
domain_axes::Tuple{Vararg{AbstractUnitRange}},
)
blocked_axes = tuplemortar((codomain_axes, domain_axes))
return unmatricize(m, blocked_axes)
end

function unmatricize!(
a::AbstractArray, m::AbstractMatrix, biperm::AbstractBlockPermutation{2}
)
function unmatricize!(a, m, biperm::AbstractBlockPermutation{2})
ndims(a) == length(biperm) ||
throw(ArgumentError("destination does not match permutation"))
blocked_axes = axes(a)[biperm]
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