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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 06:17:24 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 06:17:24 +0000 |
commit | 9d8085074991d5c0a42d6fc96a2d1a3ee918aad1 (patch) | |
tree | c85bca1e6c11eb872edfc64c524d20f2b7e3307b /tests/nameref19.sub | |
parent | Initial commit. (diff) | |
download | bash-9d8085074991d5c0a42d6fc96a2d1a3ee918aad1.tar.xz bash-9d8085074991d5c0a42d6fc96a2d1a3ee918aad1.zip |
Adding upstream version 5.1.upstream/5.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/nameref19.sub')
-rw-r--r-- | tests/nameref19.sub | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/tests/nameref19.sub b/tests/nameref19.sub new file mode 100644 index 0000000..b00f68e --- /dev/null +++ b/tests/nameref19.sub @@ -0,0 +1,64 @@ +# 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/>. +# +# can we unset the nameref attribute on variables with values that reference +# unset variables? + +unset bar +declare -n foo="bar" +declare -p foo + +declare +n foo +declare -p foo bar + +declare -n foo +declare -p foo + +# let's try removing the nameref attribute -- other attributes and assignments +# apply to the nameref target + +declare +n -i foo=7+4 +declare -p foo bar + +unset foo bar + +# but if the nameref variable doesn't have a value, the attributes apply to +# the nameref variable itself. thanks ksh93 + +declare -n foo6 +declare -xi foo6 +declare -p foo6 + +# and when we remove the nameref attribute, the other attributes remain + +declare +n foo6 +declare -p foo6 + +unset foo6 + +# make sure these cases continue to work + +# nameref referencing an existing, set variable +declare -n foo=bar +bar='Hello World!' +declare -p foo bar +declare +n foo +declare -p foo bar +unset foo bar + +# nameref referencing an existing, unset variable +declare -n foo=bar +declare bar +declare -p foo bar +declare +n foo +declare -p foo bar |