1.6 fix + cov fix

Author: N5N3

src/staticarrays_support.jl

@@ -61,8 +61,16 @@ replace_structarray_args(::Tuple{}) = ()
     ET = eltype(sa)
     isnonemptystructtype(ET) || return sa
     elements = Tuple(sa)
-    arrs = ntuple(Val(fieldcount(ET))) do i
-        similar_type(sa, fieldtype(ET, i))(_getfields(elements, i))
+    @static if VERSION >= v"1.7"
+        arrs = ntuple(Val(fieldcount(ET))) do i
+            similar_type(sa, fieldtype(ET, i))(_getfields(elements, i))
+        end
+    else
+        _fieldtype(::Type{T}) where {T} = i -> fieldtype(T, i)
+        __fieldtype = _fieldtype(ET)
+        arrs = ntuple(Val(fieldcount(ET))) do i
+            similar_type(sa, __fieldtype(i))(_getfields(elements, i))
+        end 
     end
     return StructArray{ET}(arrs)
 end

test/runtests.jl

@@ -1208,6 +1208,10 @@ Base.BroadcastStyle(::Broadcast.ArrayStyle{MyArray2}, S::Broadcast.DefaultArrayS
         s = StructArray{ComplexF64}((a , b))
         @test (@inferred bclog(s)) isa typeof(s)
         test_allocated(bclog, s)
+        @test abs.(s) .+ ((1,) .+ (1,2,3,4,5,6,7,8,9,10)) isa SMatrix
+        bc = Base.broadcasted(+, s, s);
+        bc = Base.broadcasted(+, bc, bc, s);
+        @test @inferred(Broadcast.axes(bc)) === axes(s)
     end
 
     @testset "StructJLArray" begin