Fix ambiguity copy(::Mul{<:LazyLayout, <:BandedLayout}) (#331)

* Fix ambiguity

* Fix cov

* arraylayouts

Author: DanielVandH

Project.toml

@@ -1,6 +1,6 @@
 name = "LazyArrays"
 uuid = "5078a376-72f3-5289-bfd5-ec5146d43c02"
-version = "2.1.3"
+version = "2.1.4"
 
 [deps]
 ArrayLayouts = "4c555306-a7a7-4459-81d9-ec55ddd5c99a"
@@ -27,7 +27,7 @@ LazyArraysStaticArraysExt = "StaticArrays"
 
 [compat]
 Aqua = "0.8"
-ArrayLayouts = "1.10"
+ArrayLayouts = "1.10.1"
 BandedMatrices = "1.6.2"
 Base64 = "1"
 BlockArrays = "1.0"

ext/LazyArraysBandedMatricesExt.jl

@@ -547,6 +547,7 @@ const BandedLazyLayouts = Union{AbstractLazyBandedLayout, BandedColumns{LazyLayo
 copy(M::Mul{<:BandedLazyLayouts, <:BandedLazyLayouts}) = simplify(M)
 copy(M::Mul{<:BandedLazyLayouts}) = simplify(M)
 copy(M::Mul{<:BandedLazyLayouts, <:LazyLayouts}) = simplify(M)
+copy(M::Mul{<:LazyLayouts, <:BandedLazyLayouts}) = simplify(M)
 copy(M::Mul{<:Any, <:BandedLazyLayouts}) = simplify(M)
 copy(M::Mul{<:BandedLazyLayouts, <:AbstractLazyLayout}) = simplify(M)
 copy(M::Mul{<:AbstractLazyLayout, <:BandedLazyLayouts}) = simplify(M)

test/multests.jl

@@ -1,4 +1,4 @@
-using Test, LinearAlgebra, LazyArrays, StaticArrays, FillArrays, Base64, Random
+using Test, LinearAlgebra, LazyArrays, StaticArrays, FillArrays, Base64, Random, BandedMatrices
 import LazyArrays: MulAdd, MemoryLayout, DenseColumnMajor, DiagonalLayout, SymTridiagonalLayout, Add, AddArray,
                     MulStyle, MulAddStyle, Applied, ApplyStyle, Lmul, ApplyArrayBroadcastStyle, DefaultArrayApplyStyle,
                     Rmul, ApplyLayout, arguments, colsupport, rowsupport, lazymaterialize
@@ -1180,3 +1180,10 @@ end
         @test LazyArrays.simplify(Applied(*, A, A)) == A*A
     end
 end
+
+@testset "Issue #330" begin
+    A = UpperTriangular(ApplyArray(inv, rand(5, 5)))
+    v1, v2 = ApplyVector(+, rand(5), rand(5)), ApplyVector(+, rand(4), rand(4))
+    B = Tridiagonal(v2, v1, v2)
+    @test copy(Mul(A, B)) ≈ Matrix(A) * Matrix(B)
+end