add an adjoint for CuArray construction

Author: ChrisRackauckas

Project.toml

@@ -1,7 +1,7 @@
 name = "RecursiveArrayTools"
 uuid = "731186ca-8d62-57ce-b412-fbd966d074cd"
 authors = ["Chris Rackauckas <[email protected]>"]
-version = "2.0.2"
+version = "2.0.3"
 
 [deps]
 ArrayInterface = "4fba245c-0d91-5ea0-9b3e-6abc04ee57a9"

src/init.jl

@@ -16,8 +16,8 @@ function __init__()
       vecs = vec.(VA.u)
       return CuArrays.CuArray(reshape(reduce(hcat,vecs),size(VA.u[1])...,length(VA.u)))
     end
-
     Base.convert(::Type{<:CuArrays.CuArray},VA::AbstractVectorOfArray) = CuArrays.CuArray(VA)
+    @adjoint CuArray(xs::AbstractVectorOfArray) = CuArray(xs), ȳ -> (ȳ,)
   end
 
   @require Tracker="9f7883ad-71c0-57eb-9f7f-b5c9e6d3789c" begin