Merge pull request #576 from mcabbott/patch-1

PermutedDimsArray
FluxML · Jan 29, 2019 · 0469394 · 0469394
2 parents dd95416 + 55a7359
commit 0469394
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Showing 2 changed files with 6 additions and 2 deletions.
diff --git a/src/tracker/lib/array.jl b/src/tracker/lib/array.jl
@@ -223,8 +223,11 @@ Base.reshape(xs::TrackedArray, dims::Tuple{Vararg{Int64}}) = track(reshape, xs,
 
 @grad reshape(xs, dims) = reshape(data(xs), dims), Δ -> (reshape(Δ, size(xs)),nothing)
 
-Base.permutedims(xs::TrackedArray, dims) = track(permutedims, xs, dims)
-@grad permutedims(xs, dims) = permutedims(data(xs), dims), Δ -> (permutedims(Δ, invperm(dims)),nothing)
+Base.permutedims(xs::TrackedArray, perm) = track(permutedims, xs, perm)
+@grad permutedims(xs, perm) = permutedims(data(xs), perm), Δ -> (permutedims(Δ, invperm(perm)),nothing)
+
+Base.PermutedDimsArray(xs::TrackedArray, perm) = track(PermutedDimsArray, xs, perm)
+@grad PermutedDimsArray(xs, perm) = PermutedDimsArray(data(xs), perm), Δ -> (PermutedDimsArray(Δ, invperm(perm)),nothing)
 
 function _kron(mat1::AbstractMatrix,mat2::AbstractMatrix)
     m1, n1 = size(mat1)

diff --git a/test/tracker.jl b/test/tracker.jl
@@ -116,6 +116,7 @@ end
 end
 
 @test gradtest(x -> permutedims(x, [3,1,2]), rand(4,5,6))
+@test gradtest(x -> PermutedDimsArray(x, [3,1,2]), rand(4,5,6))
 
 @test gradtest(x -> repeat(x; inner=2), rand(5))
 @test gradtest(x -> repeat(x; inner=2, outer=3), rand(5))