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# 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/>.
#
function f1
{
typeset -n v=$1
v=inside
}
v=global
f1 v
echo $v
unset v
unset -f f1
function foo
{
typeset x=one
typeset -n y=$1
y=two
echo inside: $x
}
foo x
echo outside: $x
function foo2
{
typeset -n x=$1
x=foo
}
foo2 x
echo $x
unset -f foo
function foo { typeset -n v=$1; v=local; }
v=global
foo v
echo $v
unset v
# invalid self reference at global scope
typeset -n v=v
# can we catch a circular self-reference?
typeset -n v=w
typeset -n w=x
typeset -n x=v
x=4
echo x = $x
unset -n v w x
# can we keep local variables invisible when we add nameref attribute?
function f { typeset x; typeset -n x; x=y; }
f
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