FillArray interface for views, adjoints, and transpose (#123)

Author: dlfivefifty

Project.toml

@@ -1,6 +1,6 @@
 name = "FillArrays"
 uuid = "1a297f60-69ca-5386-bcde-b61e274b549b"
-version = "0.10"
+version = "0.10.1"
 
 [deps]
 LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"

src/FillArrays.jl

@@ -605,4 +605,11 @@ end
 
 Base.show(io::IO, ::MIME"text/plain", x::Union{Eye,AbstractFill}) = show(io, x)
 
+##
+# interface
+##
+
+getindex_value(a::LinearAlgebra.AdjOrTrans) = getindex_value(parent(a))
+getindex_value(a::SubArray) = getindex_value(parent(a))
+
 end # module

test/runtests.jl

@@ -1138,3 +1138,20 @@ end
     @test_throws BoundsError setindex!(ones(3), zeros(3), Trues(2))
     @test_throws DimensionMismatch setindex!(ones(2), zeros(3), Trues(2))
 end
+
+@testset "FillArray interface" begin
+    @testset "views" begin
+        a = Fill(2.0,5)
+        v = view(a,1:2)
+        @test FillArrays.getindex_value(v) == FillArrays.unique_value(v) == 2.0
+        @test convert(Fill, v) ≡ Fill(2.0,2)
+    end
+
+    @testset "adjtrans" begin
+        a = Fill(2.0,5)
+        @test FillArrays.getindex_value(a') == FillArrays.unique_value(a') == 2.0
+        @test convert(Fill, a') ≡ Fill(2.0,1,5)
+        @test FillArrays.getindex_value(transpose(a)) == FillArrays.unique_value(transpose(a)) == 2.0
+        @test convert(Fill, transpose(a)) ≡ Fill(2.0,1,5)
+    end
+end