show for Fun on Point (#454)

Author: jishnub

Project.toml

@@ -1,6 +1,6 @@
 name = "ApproxFunBase"
 uuid = "fbd15aa5-315a-5a7d-a8a4-24992e37be05"
-version = "0.8.16"
+version = "0.8.17"
 
 [deps]
 AbstractFFTs = "621f4979-c628-5d54-868e-fcf4e3e8185c"

src/show.jl

@@ -10,9 +10,13 @@ function show(io::IO, f::Fun)
     print(io,")")
 end
 
+evalconst(f, ::AnyDomain) = f(0.0)
+evalconst(f, d) = f(leftendpoint(d))
+evalconst(f, d::Point) = f(d)
+
 function show(io::IO,f::Fun{<:Union{ConstantSpace, ArraySpace{<:ConstantSpace}}})
     d = domain(f)
-    print(io, f(d isa AnyDomain ? 0.0 : leftendpoint(d)))
+    print(io, evalconst(f, domain(f)))
     print(io, d isa AnyDomain ? " anywhere" : " on " * string(d))
 end
 

test/show.jl

@@ -52,6 +52,10 @@
 
 		f = Fun(ApproxFunBase.ArraySpace([ConstantSpace(0..1)]), [3])
 		@test contains(repr(f), repr(f(0)))
+
+		f = Fun(1, ConstantSpace(Point(3)))
+		@test contains(repr(f), repr(Point(3)))
+		@test contains(repr(f), repr(1))
 	end
 	@testset "Operator" begin
 		@testset "QuotientSpace" begin