Support DomainSets v0.3 (#41)

* Fix bug in Chebyshev

* v0.3.4

* Update Project.toml

Author: dlfivefifty

Project.toml

@@ -1,6 +1,6 @@
 name = "ApproxFunBase"
 uuid = "fbd15aa5-315a-5a7d-a8a4-24992e37be05"
-version = "0.3.3"
+version = "0.3.4"
 
 [deps]
 AbstractFFTs = "621f4979-c628-5d54-868e-fcf4e3e8185c"
@@ -33,13 +33,13 @@ BlockArrays = "0.11, 0.12"
 BlockBandedMatrices = "0.7, 0.8"
 Calculus = "0.5"
 DSP = "0.6"
-DomainSets = "0.1, 0.2, 0.3"
+DomainSets = "0.3"
 DualNumbers = "0.6.2"
 FFTW = "0.3, 1"
 FastGaussQuadrature = "0.4"
 FillArrays = "0.8"
 InfiniteArrays = "0.4, 0.5, 0.6, 0.7"
-IntervalSets = "0.3.1, 0.4"
+IntervalSets = "0.5"
 LazyArrays = "0.14, 0.15, 0.16"
 LowRankApprox = "0.2, 0.3, 0.4"
 SpecialFunctions = "0.8, 0.9, 0.10"

src/ApproxFunBase.jl

@@ -6,7 +6,7 @@ import StaticArrays, Calculus
 
 import DomainSets: Domain, indomain, UnionDomain, ProductDomain, FullSpace, Point, elements, DifferenceDomain,
             Interval, ChebyshevInterval, boundary, ∂, rightendpoint, leftendpoint,
-            dimension, WrappedDomain
+            dimension, WrappedDomain, VcatDomain
 
 
 

src/Domain.jl

@@ -20,6 +20,7 @@ struct EmptyDomain <: Domain{Nothing} end
 
 isambiguous(::AnyDomain) = true
 dimension(::AnyDomain) = 1
+dimension(::EmptyDomain) = 0
 
 complexlength(::AnyDomain) = NaN
 arclength(::AnyDomain) = NaN

src/Domains/multivariate.jl

@@ -3,7 +3,9 @@ include("ProductDomain.jl")
 
 ## boundary
 
-boundary(d::ProductDomain{Tuple{A,B}}) where {A<:IntervalOrSegment,B<:IntervalOrSegment} =
+const RectDomain{T,A<:IntervalOrSegment,B<:IntervalOrSegment} = VcatDomain{2,T,(1,1),Tuple{A,B}}
+
+boundary(d::RectDomain) =
     PiecewiseSegment([Vec(leftendpoint(factor(d,1)),leftendpoint(factor(d,2))),
                       Vec(rightendpoint(factor(d,1)),leftendpoint(factor(d,2))),
                       Vec(rightendpoint(factor(d,1)),rightendpoint(factor(d,2))),