tests/nameref20.sub

#   This program is free software: you can redistribute it and/or modify
#   it under the terms of the GNU General Public License as published by
#   the Free Software Foundation, either version 3 of the License, or
#   (at your option) any later version.
#
#   This program is distributed in the hope that it will be useful,
#   but WITHOUT ANY WARRANTY; without even the implied warranty of
#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#   GNU General Public License for more details.
#
#   You should have received a copy of the GNU General Public License
#   along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
# a collection of cases in bug reports after bash-5.0-alpha was released

declare -n r=v[0]
v=(X); r=Y
declare -p ${!v*}
printf "%s: <%s>\n" "r" "$r" "v" "$v"

unset -n r
unset -v v

declare -n ref=var; declare -a ref
ref=(X)
declare -p ref var

unset -n ref
unset -v var

f() { declare -n ref=var; declare ref=(X); declare -p ref var; };
f

unset -f f

f() { declare -n ref=var; declare -g ref=(X); declare -p ref var; };

declare -n ref=foo
f
echo outside:
declare -p foo

unset -n ref
unset -v foo
unset -f f

f() { declare -n ref=var; declare -a ref; ref=(X); declare -p ref var; }

f
echo outside:
declare -p ref var
unset -f f

f() { declare -n ref=var; declare ref; ref=X; declare -p ref var; }

f
echo outside:
declare -p ref var

unset -f f

unset -n ref; unset var

f()
{
	declare var=X; declare -n ref=var; declare ref=(Y)
	declare -p ref var
}
f

unset -f f

declare -n ref=var
f() { local ref=Y; declare -p ref var; local; }

var=X
f

unset -v var
f

unset -n ref
unset -f f