feat: remove Setfield dep

Author: avik-pal

lib/SciMLJacobianOperators/Project.toml

@@ -13,7 +13,6 @@ FastClosures = "9aa1b823-49e4-5ca5-8b0f-3971ec8bab6a"
 LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
 SciMLBase = "0bca4576-84f4-4d90-8ffe-ffa030f20462"
 SciMLOperators = "c0aeaf25-5076-4817-a8d5-81caf7dfa961"
-Setfield = "efcf1570-3423-57d1-acb7-fd33fddbac46"
 
 [compat]
 ADTypes = "1.8.1"
@@ -32,7 +31,6 @@ LinearAlgebra = "1.10"
 ReverseDiff = "1.15"
 SciMLBase = "2.54.0"
 SciMLOperators = "0.3"
-Setfield = "1"
 Test = "1.10"
 TestItemRunner = "1"
 Tracker = "0.2.35"

lib/SciMLJacobianOperators/src/SciMLJacobianOperators.jl

@@ -9,7 +9,6 @@ using FastClosures: @closure
 using LinearAlgebra: LinearAlgebra
 using SciMLBase: SciMLBase, AbstractNonlinearProblem, AbstractNonlinearFunction
 using SciMLOperators: AbstractSciMLOperator
-using Setfield: @set!
 
 const DI = DifferentiationInterface
 const True = Val(true)
@@ -98,13 +97,10 @@ Base.size(J::JacobianOperator) = J.size
 Base.size(J::JacobianOperator, d::Integer) = J.size[d]
 
 for op in (:adjoint, :transpose)
-    @eval function Base.$(op)(operator::JacobianOperator)
-        @set! operator.mode = flip_mode(operator.mode)
-        (; output_cache, input_cache) = operator
-        @set! operator.output_cache = input_cache
-        @set! operator.input_cache = output_cache
-        @set! operator.size = reverse(operator.size)
-        return operator
+    @eval function Base.$(op)(operator::JacobianOperator{iip, T}) where {iip, T}
+        return JacobianOperator{iip, T}(
+            flip_mode(operator.mode), operator.jvp_op, operator.vjp_op,
+            reverse(operator.size), input_cache, output_cache)
     end
 end