Revert "Move DualNumbers to an extension (#565)" (#568)

This reverts commit 66cfb9c.

Author: jishnub

Project.toml

@@ -1,6 +1,6 @@
 name = "ApproxFunBase"
 uuid = "fbd15aa5-315a-5a7d-a8a4-24992e37be05"
-version = "0.9.11"
+version = "0.9.10"
 
 [deps]
 AbstractFFTs = "621f4979-c628-5d54-868e-fcf4e3e8185c"
@@ -11,6 +11,7 @@ Calculus = "49dc2e85-a5d0-5ad3-a950-438e2897f1b9"
 Combinatorics = "861a8166-3701-5b0c-9a16-15d98fcdc6aa"
 DSP = "717857b8-e6f2-59f4-9121-6e50c889abd2"
 DomainSets = "5b8099bc-c8ec-5219-889f-1d9e522a28bf"
+DualNumbers = "fa6b7ba4-c1ee-5f82-b5fc-ecf0adba8f74"
 FFTW = "7a1cc6ca-52ef-59f5-83cd-3a7055c09341"
 FillArrays = "1a297f60-69ca-5386-bcde-b61e274b549b"
 InfiniteArrays = "4858937d-0d70-526a-a4dd-2d5cb5dd786c"
@@ -19,15 +20,14 @@ LazyArrays = "5078a376-72f3-5289-bfd5-ec5146d43c02"
 LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
 LowRankMatrices = "e65ccdef-c354-471a-8090-89bec1c20ec3"
 SparseArrays = "2f01184e-e22b-5df5-ae63-d93ebab69eaf"
+SpecialFunctions = "276daf66-3868-5448-9aa4-cd146d93841b"
 StaticArrays = "90137ffa-7385-5640-81b9-e52037218182"
 Statistics = "10745b16-79ce-11e8-11f9-7d13ad32a3b2"
 
 [weakdeps]
-DualNumbers = "fa6b7ba4-c1ee-5f82-b5fc-ecf0adba8f74"
 SpecialFunctions = "276daf66-3868-5448-9aa4-cd146d93841b"
 
 [extensions]
-ApproxFunBaseDualNumbersExt = "DualNumbers"
 ApproxFunBaseSpecialFunctionsExt = "SpecialFunctions"
 
 [compat]
@@ -54,11 +54,10 @@ julia = "1.9"
 
 [extras]
 Aqua = "4c88cf16-eb10-579e-8560-4a9242c79595"
-DualNumbers = "fa6b7ba4-c1ee-5f82-b5fc-ecf0adba8f74"
 Infinities = "e1ba4f0e-776d-440f-acd9-e1d2e9742647"
 Random = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"
 SpecialFunctions = "276daf66-3868-5448-9aa4-cd146d93841b"
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 
 [targets]
-test = ["Aqua", "Random", "Infinities", "Test", "SpecialFunctions", "DualNumbers"]
+test = ["Aqua", "Random", "Infinities", "Test", "SpecialFunctions"]

ext/ApproxFunBaseDualNumbersExt.jl

@@ -8,13 +8,15 @@ import Calculus
 import Combinatorics: multiexponents
 using DSP
 using DomainSets
+using DualNumbers
 using FFTW
 using FillArrays
 using InfiniteArrays
 using IntervalSets
 using LinearAlgebra
 using LowRankMatrices
 using SparseArrays
+# using SpecialFunctions
 using StaticArrays: SVector, @SArray, SArray
 import Statistics: mean
 

src/ApproxFunBase.jl

@@ -76,6 +76,9 @@ eps(::T) where T<:Integer = eps(T)
 
 eps(::Type{Complex{T}}) where {T<:Real} = eps(real(T))
 eps(z::Complex{T}) where {T<:Real} = eps(abs(z))
+eps(::Type{Dual{Complex{T}}}) where {T<:Real} = eps(real(T))
+eps(z::Dual{Complex{T}}) where {T<:Real} = eps(abs(z))
+
 
 eps(::Type{Vector{T}}) where {T<:Number} = eps(T)
 eps(::Type{SVector{k,T}}) where {k,T<:Number} = eps(T)

src/LinearAlgebra/helper.jl

@@ -418,6 +418,7 @@ for OP in (:(Base.max),:(Base.min))
     end
 end
 
+# from DualNumbers
 for (funsym, exp) in Calculus.symbolic_derivatives_1arg()
     funsym == :abs && continue
     funsym == :sign && continue

src/specialfunctions.jl

@@ -15,7 +15,10 @@ using SpecialFunctions
 using Test
 
 @testset "Project quality" begin
-    Aqua.test_all(ApproxFunBase, ambiguities=false, piracy = false)
+    Aqua.test_all(ApproxFunBase, ambiguities=false, piracy = false,
+        # only test formatting on VERSION >= v1.7
+        # https://github.com/JuliaTesting/Aqua.jl/issues/105#issuecomment-1551405866
+        project_toml_formatting = VERSION >= v"1.9")
 end
 
 @testset "Helper" begin
@@ -772,12 +775,6 @@ end
 @time include("ETDRK4Test.jl")
 include("show.jl")
 
-@testset "Dual" begin
-    z = complex(1,1)
-    @test ApproxFunBase.eps(Dual(z, zero(z))) == ApproxFunBase.eps(z)
-    @test ApproxFunBase.eps(Dual{ComplexF64}) == ApproxFunBase.eps(ComplexF64)
-end
-
 @testset "chebyshev_clenshaw" begin
     @test @inferred(chebyshev_clenshaw(Int[], 1)) == 0
     @test @inferred(chebyshev_clenshaw(Int[], Dual(0,1))) == Dual(0,0)