Fix bug in colsupport with col-vec views (#62)

* Fix bug in colsupport with col-vec views

* v0.6.5

Author: dlfivefifty

Project.toml

@@ -1,7 +1,7 @@
 name = "ArrayLayouts"
 uuid = "4c555306-a7a7-4459-81d9-ec55ddd5c99a"
 authors = ["Sheehan Olver <[email protected]>"]
-version = "0.6.4"
+version = "0.6.5"
 
 [deps]
 FillArrays = "1a297f60-69ca-5386-bcde-b61e274b549b"

src/memorylayout.jl

@@ -648,7 +648,7 @@ colsupport(A, j) = colsupport(MemoryLayout(A), A, j)
 colsupport(A) = colsupport(A, axes(A,2))
 
 # TODO: generalise to other subarrays
-function colsupport(A::SubArray{<:Any,N,<:Any,<:Tuple{Slice,Any}}, j) where N
+function colsupport(A::SubArray{<:Any,N,<:Any,<:Tuple{Slice,AbstractVector}}, j) where N
     _, jr = parentindices(A)
     colsupport(parent(A), jr[j])
 end

test/test_layouts.jl

@@ -428,4 +428,8 @@ struct FooNumber <: Number end
         MemoryLayout(revD)
         @test 0 == @allocated MemoryLayout(revD)
     end
+
+    @testset "bug in vec views BandedMatrices#233" begin
+        @test colsupport(view(randn(5,5),:,1),1:1) ≡ Base.OneTo(5)
+    end
 end