Fix evaluation for arrayspace (#287)

* Fix `Evaluation` for `ArraySpace`

* Version bump to v0.7.39

Author: jishnub

Project.toml

@@ -1,6 +1,6 @@
 name = "ApproxFunBase"
 uuid = "fbd15aa5-315a-5a7d-a8a4-24992e37be05"
-version = "0.7.38"
+version = "0.7.39"
 
 [deps]
 AbstractFFTs = "621f4979-c628-5d54-868e-fcf4e3e8185c"

src/Operators/functionals/Evaluation.jl

@@ -58,7 +58,8 @@ end
 
 ## default getindex
 function getindex(D::ConcreteEvaluation,k::Integer)
-    f = Fun(D.space, [zeros(eltype(D),k-1); one(eltype(D))])
+    T = prectype(domainspace(D))
+    f = Fun(D.space, [zeros(T,k-1); one(T)])
     df = differentiate(f,D.order)
     v = df(D.x)
     strictconvert(eltype(D), v)

src/show.jl

@@ -10,11 +10,15 @@ function show(io::IO, f::Fun)
     print(io,")")
 end
 
-show(io::IO,f::Fun{<:ConstantSpace{AnyDomain}}) =
-    print(io, convert(Number,f), " anywhere")
-
-show(io::IO,f::Fun{<:ConstantSpace}) =
-    print(io, convert(Number,f), " on ", domain(f))
+function show(io::IO,f::Fun{<:ConstantSpace})
+    print(io, only(coefficients(f)))
+    d = domain(f)
+    if d isa AnyDomain
+        print(io, " anywhere")
+    else
+        print(io, " on ", d)
+    end
+end
 
 ## MultivariateFun