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https://https.git.savannah.gnu.org/git/bash.git
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Chet Ramey
103 lines
1.9 KiB
Plaintext
103 lines
1.9 KiB
Plaintext
# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# set of tests for posix interp 1009, unset variable in tempenv
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# posix doesn't have local variables, but other shells echo
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#
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# local local global global
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#
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# ash-based shells unset local x in f1 after call to f2; we can do this
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# with localvar_unset option
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f1()
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{
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local x=local
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echo $FUNCNAME: x = $x
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f2
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echo after f2: x = ${x-unset}
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}
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f2()
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{
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echo $FUNCNAME: x = $x
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unset x
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}
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x=global
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f1
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echo default after f1: x = $x
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shopt -s localvar_unset
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x=global
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f1
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echo localvar_unset after f1: x = $x
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shopt -u localvar_unset
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unset -f f1 f2
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unset -v x
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# posix says this should echo temp, then global
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f1()
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{
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echo $FUNCNAME: x = $x
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unset x
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}
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x=global
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x=temp f1
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echo after f1: x = $x
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unset -f f1
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unset -v x
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# posix says this should echo 'unset'
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# interp 1009
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x=global
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x=temp unset x
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echo 1009: after bash unset: x = ${x-unset}
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set -o posix
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x=global
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x=temp unset x
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echo 1009: after posix unset: x = ${x-unset}
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set +o posix
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unset -v x
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# posix says this should echo local, unset, global
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f1()
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{
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local x=local
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echo $FUNCNAME: x = $x
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x=temp unset x
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echo after unset $FUNCNAME: x = ${x-unset}
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}
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x=global
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f1
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echo 1009: after bash f1: x = $x
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set -o posix
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x=global
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f1
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echo 1009: after posix f1: x = $x
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set +o posix
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unset -f f1
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unset -v x
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