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52645: unset through a nameref keep up-scope parameters declared unset 

Othewise unset of a reference to a global wipes out all parameters of
the same name.
This commit is contained in:
Bart Schaefer 2024-03-01 15:43:50 -08:00
parent 85172998f4
commit 13f73d84d3
2 changed files with 11 additions and 0 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
2024-03-01 Bart Schaefer <schaefer@zsh.org>
* 52645: Src/builtin.c: unset through a nameref keep up-scope
parameters declared, and not wipe out the entire parameter stack
2024-02-28 Bart Schaefer <schaefer@zsh.org>
* 52619 (plus tests): Src/params.c, Test/A06assign.ztst: there

6
Src/builtin.c
View File

@ -3932,8 +3932,14 @@ bin_unset(char *name, char **argv, Options ops, int func)
}
} else {
if (!OPT_ISSET(ops,'n')) {
int ref = (pm->node.flags & PM_NAMEREF);
if (!(pm = (Param)resolve_nameref(pm, NULL)))
continue;
if (ref && pm->level < locallevel) {
/* Just mark unset, do not remove from table */
pm->node.flags |= PM_DECLARED|PM_UNSET;
continue;
}
}
if (unsetparam_pm(pm, 0, 1))
returnval = 1;