Merge pull request #29 from SciML/gd/diffractor

Add AutoDiffractor

Author: Vaibhavdixit02

src/ADTypes.jl

@@ -222,7 +222,15 @@ Base.@kwdef struct AutoSparseReverseDiff <: AbstractSparseReverseMode
     compile::Bool = false
 end
 
+"""
+    AutoDiffractor
+
+Chooses [Diffractor.jl](https://github.com/JuliaDiff/Diffractor.jl).
+"""
+struct AutoDiffractor <: AbstractADType end
+
 export AutoChainRules,
+       AutoDiffractor,
        AutoFiniteDiff,
        AutoFiniteDifferences,
        AutoForwardDiff,

test/runtests.jl

@@ -91,4 +91,8 @@ struct CustomTag end
     adtype = AutoEnzyme(; mode = Val(:Reverse))
     @test adtype isa ADTypes.AbstractADType
     @test adtype isa AutoEnzyme{Val{:Reverse}}
+
+    adtype = AutoDiffractor()
+    @test adtype isa ADTypes.AbstractADType
+    @test adtype isa AutoDiffractor
 end