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Groups > gnu.bash.bug > #14398
| From | Grisha Levit <grishalevit@gmail.com> |
|---|---|
| Newsgroups | gnu.bash.bug |
| Subject | Re: delcare -a on a nameref in a function modifies nameref instead of target |
| Date | 2018-07-25 16:27 -0400 |
| Message-ID | <mailman.4218.1532550468.1292.bug-bash@gnu.org> (permalink) |
| References | <CAMu=BrqTimtENjRABPgRdDhn5bQG2zBMv5YfQsNQDETh6oAjeQ@mail.gmail.com> |
In the latest devel this issue is fixed for the case that the local nameref
points to a non-existent variable but there is still a bug if the variable
pointed to by a local nameref already exists. In such a case, `declare'
commands after the initial `declare -n' end up modifying the value and/or
attributes of the local nameref variable itself rather than modifying the
target of the nameref.
At global scope:
unset -n ref; unset var
declare var=X; declare -n ref=var; declare ref=(Y); declare -p ref var
declare -n ref="var"
declare -a var=([0]="Y")
Whereas in a function:
unset -n ref; unset var
f() {
declare var=X; declare -n ref=var; declare ref=(Y); declare -p ref var
}; f
declare -an ref=([0]="Y")
declare -- var="X"
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Re: delcare -a on a nameref in a function modifies nameref instead of target Grisha Levit <grishalevit@gmail.com> - 2018-07-25 16:27 -0400
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