Don't forward real (#867)

* remove real definition

* don't specialize real for DualNumber

* don't import real

Author: jishnub

Project.toml

@@ -1,6 +1,6 @@
 name = "ApproxFun"
 uuid = "28f2ccd6-bb30-5033-b560-165f7b14dc2f"
-version = "0.13.15"
+version = "0.13.16"
 
 [deps]
 AbstractFFTs = "621f4979-c628-5d54-868e-fcf4e3e8185c"
@@ -22,7 +22,7 @@ StaticArrays = "90137ffa-7385-5640-81b9-e52037218182"
 
 [compat]
 AbstractFFTs = "1.0"
-ApproxFunBase = "0.7.34, 0.8"
+ApproxFunBase = "0.8.4"
 ApproxFunBaseTest = "0.1"
 ApproxFunFourier = "0.3"
 ApproxFunOrthogonalPolynomials = "0.5, 0.6"

src/ApproxFun.jl

@@ -34,7 +34,7 @@ import AbstractFFTs: Plan, fft, ifft
 import FFTW: plan_fft, plan_ifft, plan_ifft!
 
 import Base: convert, getindex, *, +, -, /, ^, \, sum, cumsum,
-                first, last, isempty, zeros, promote_rule, real,
+                first, last, isempty, zeros, promote_rule,
                 # the following functions names are listed in Calculus.symbolic_derivatives_1arg(),
                 # and methods are added to them here
                 sqrt, cbrt, abs2, inv, log, log10, log2, log1p,

src/Extras/Extras.jl

@@ -15,7 +15,6 @@ import FastTransforms: pochhammer
 
 include("poetry.jl")
 
-include("ReImSpace.jl")
 include("simplify.jl")
 
 include("eigs.jl")

src/Extras/ReImSpace.jl

@@ -1,6 +1,3 @@
-# We need to implement some functionality for the ApproxFun constructor to work
-real(::Type{Dual{T}}) where {T} = Dual{ApproxFun.real(T)}
-
 # Dual number support. Should there be realpart and dualpart of Space and Domain?
 DualNumbers.realpart(f::Fun{S,T}) where {S,T<:Dual} = Fun(space(f),realpart.(coefficients(f)))
 DualNumbers.dualpart(f::Fun{S,T}) where {S,T<:Dual} = Fun(space(f),dualpart.(coefficients(f)))