fully remove ZygoteRules?

Author: ChrisRackauckas

Project.toml

@@ -12,7 +12,6 @@ RecipesBase = "3cdcf5f2-1ef4-517c-9805-6587b60abb01"
 Requires = "ae029012-a4dd-5104-9daa-d747884805df"
 StaticArrays = "90137ffa-7385-5640-81b9-e52037218182"
 Statistics = "10745b16-79ce-11e8-11f9-7d13ad32a3b2"
-ZygoteRules = "700de1a5-db45-46bc-99cf-38207098b444"
 
 [compat]
 ArrayInterface = "2.7, 3.0"
@@ -21,7 +20,6 @@ DocStringExtensions = "0.8"
 RecipesBase = "0.7, 0.8, 1.0"
 Requires = "0.5, 1.0"
 StaticArrays = "0.12, 1.0"
-ZygoteRules = "0.2"
 julia = "1.6"
 
 [extras]

src/RecursiveArrayTools.jl

@@ -10,7 +10,6 @@ using DocStringExtensions
 
   import ChainRulesCore
   import ChainRulesCore: NoTangent
-  import ZygoteRules
   abstract type AbstractVectorOfArray{T, N, A} <: AbstractArray{T, N} end
   abstract type AbstractDiffEqArray{T, N, A} <: AbstractVectorOfArray{T, N, A} end
 

src/init.jl

@@ -17,7 +17,7 @@ function __init__()
       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)
-    ZygoteRules.@adjoint CuArrays.CuArray(xs::AbstractVectorOfArray) = CuArrays.CuArray(xs), ȳ -> (ȳ,)
+    ChainRules.rrule(::Type{<:CuArrays.CuArray},xs::AbstractVectorOfArray) = CuArrays.CuArray(xs), ȳ -> (NoTangent(),ȳ)
   end
 
   @require CUDA="052768ef-5323-5732-b1bb-66c8b64840ba" begin
@@ -26,7 +26,7 @@ function __init__()
       return CUDA.CuArray(reshape(reduce(hcat,vecs),size(VA.u[1])...,length(VA.u)))
     end
     Base.convert(::Type{<:CUDA.CuArray},VA::AbstractVectorOfArray) = CUDA.CuArray(VA)
-    ZygoteRules.@adjoint CUDA.CuArray(xs::AbstractVectorOfArray) = CUDA.CuArray(xs), ȳ -> (ȳ,)
+    ChainRules.rrule(::Type{<:CUDA.CuArray},xs::AbstractVectorOfArray) = CUDA.CuArray(xs), ȳ -> (NoTangent(),ȳ)
   end
 
   @require Tracker="9f7883ad-71c0-57eb-9f7f-b5c9e6d3789c" begin

src/zygote.jl

@@ -33,9 +33,12 @@ function ChainRulesCore.rrule(::Type{<:DiffEqArray},u,t)
   DiffEqArray(u,t),y -> (NoTangent(),[y[ntuple(x->Colon(),ndims(y)-1)...,i] for i in 1:size(y)[end]],NoTangent())
 end
 
-ZygoteRules.@adjoint function ZygoteRules.literal_getproperty(A::ArrayPartition, ::Val{:x})
-  function literal_ArrayPartition_x_adjoint(d)
-      (NoTangent(),ArrayPartition((isnothing(d[i]) ? zero(A.x[i]) : d[i] for i in 1:length(d))...))
-  end
-  A.x,literal_ArrayPartition_x_adjoint
+function ChainRulesCore.rrule(::typeof(getproperty),A::ArrayPartition, s::Symbol)
+    if s !== :x
+        error("$s is not a field of ArrayPartition")
+    end
+    function literal_ArrayPartition_x_adjoint(d)
+        (NoTangent(),ArrayPartition((isnothing(d[i]) ? zero(A.x[i]) : d[i] for i in 1:length(d))...))
+    end
+    A.x,literal_ArrayPartition_x_adjoint
 end