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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/nameref17.sub | |
parent | Initial commit. (diff) | |
download | bash-upstream.tar.xz bash-upstream.zip |
Adding upstream version 5.1.upstream/5.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | tests/nameref17.sub | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/tests/nameref17.sub b/tests/nameref17.sub new file mode 100644 index 0000000..b8c3cc7 --- /dev/null +++ b/tests/nameref17.sub @@ -0,0 +1,116 @@ +# 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/>. +# +# test behavior of readonly namerefs and namerefs referencing readonly variables + +# readonly nameref variable referencing read-write global variable + +bar=one +declare -rn foo0=bar +unset foo0 # unsets bar +declare -p bar +unset -n foo0 # cannot unset +declare -p foo0 + +declare +r foo0 # modifies bar +declare -p foo0 bar +declare +r -n foo0 # error +declare +n foo0 # error +unset bar + +# readonly nameref variable without a value +typeset -n foo1 +typeset -r foo1 + +typeset -p foo1 + +typeset foo1=bar # error +typeset +r foo1 # no-op, follows nameref chain to nothing +typeset -p foo1 + +# nameref pointing to read-only global variable +foo2=bar +typeset -n foo2 +typeset -r foo2 # changes bar + +typeset -p foo2 bar + +foo2=bar # error? +typeset +r foo2 # attempts to change bar, error +typeset -p foo2 bar # nameref unchanged + +# read-only nameref pointing to read-only global variable +bar3=three +declare -rn foo3=bar3 +unset foo3 # unsets bar3 + +bar3=three +declare -p bar3 +unset -n foo3 # cannot unset + +readonly bar3 +declare +r foo3 # error attempting to reference bar3 +declare -p foo3 bar3 +declare +r -n foo3 # error + +# readonly nameref pointing to read-write local -- can we remove nameref attr? +func() +{ + typeset bar4=four + + # readonly nameref + typeset -n -r foo4=bar4 + + typeset -p foo4 bar4 + + typeset +n foo4 + + typeset -p foo4 +} +func +unset -f func + +# readonly nameref pointing to read-write global -- can we remove nameref attr? +bar4=four +foo4=bar4 +# readonly nameref +typeset -n foo4 +typeset -r -n foo4 + +typeset -p foo4 bar4 + +typeset +n foo4 +typeset -p foo4 + +bar4=four +: ${foo4=bar4} + +typeset -p foo4 bar4 + +# readonly local nameref without a value -- can we remove nameref attribute? +func() +{ + declare -r -n foo5 + declare -p foo5 + declare +n foo5 + declare -p foo5 +} +func +unset -f func + +# readonly global nameref without a value -- can we remove nameref attribute? +declare -n foo5 +declare -r -n foo5 +declare -p foo5 +declare +n foo5 +declare -p foo5 |