f()
{
	local -a v
	local -a w

	g
	echo "f: ${v[@]}, ${w[@]}"
}

g()
{
	aux=v
	declare -ga "$aux=( asdf fdsa )"
	declare -ga w=( asdf fdsa )

	echo "g: ${v[@]}, ${w[@]}"
}

f
echo "FIN: ${v[@]}, ${w[@]}"

unset v w
unset -f f g

f()
{
	local  v
	local  w

	g
	echo f: v = $v, w = $w
}

g()
{
	aux=v
	declare -g w=one
	declare -g "$aux=two"

	echo g: v = $v, w = $w
}

f
echo FIN: v = $v, w = $w

# problem with error return propagation through bash-4.3
unset -f aaa bbb
unset unique

aaa() {
    declare -g -a unique=()
}
bbb() {
    declare -g -A unique=()
}
aaa
bbb
echo after bbb: $?