Construct PseudoBlockVector/Matrix from arrays (#263)

* Construct PseudoBlockVector/Matrix from arrays

* Add tests

* PseudoBlockArray constructor with ndims

Author: jishnub

Project.toml

@@ -1,6 +1,6 @@
 name = "BlockArrays"
 uuid = "8e7c35d0-a365-5155-bbbb-fb81a777f24e"
-version = "0.16.29"
+version = "0.16.30"
 
 [deps]
 ArrayLayouts = "4c555306-a7a7-4459-81d9-ec55ddd5c99a"

src/pseudo_blockarray.jl

@@ -129,6 +129,7 @@ convert(::Type{AbstractArray}, A::PseudoBlockArray) = A
 PseudoBlockArray{T, N}(A::AbstractArray{T2, N}) where {T,T2,N} =
     PseudoBlockArray(Array{T, N}(A), axes(A))
 PseudoBlockArray{T1}(A::AbstractArray{T2, N}) where {T1,T2,N} = PseudoBlockArray{T1, N}(A)
+PseudoBlockArray{<:Any,N}(A::AbstractArray{T, N}) where {T,N} = PseudoBlockArray{T, N}(A)
 PseudoBlockArray(A::AbstractArray{T, N}) where {T,N} = PseudoBlockArray{T, N}(A)
 
 convert(::Type{PseudoBlockArray{T, N}}, A::AbstractArray{T2, N}) where {T,T2,N} =

test/test_blockarrays.jl

@@ -94,6 +94,15 @@ end
             @test A == PseudoBlockArray(A, 1:3) == PseudoBlockArray{Int}(A, 1:3) ==
                 PseudoBlockArray(A, (blockedrange(1:3),)) == PseudoBlockArray{Int}(A, (blockedrange(1:3),)) ==
                 PseudoBlockArray{Float64}(A, 1:3)
+
+            @testset "from arrays" begin
+                v = [1,2,3]
+                @test PseudoBlockVector(v) == v
+                @test PseudoBlockArray(v) == v
+                M = [1 2; 3 4]
+                @test PseudoBlockMatrix(M) == M
+                @test PseudoBlockArray(M) == M
+            end
         end
 
         @testset "similar" begin