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44664: Fix problem with temporary assignment.

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"foo=bar builtin" inside a function lost any variable from
enclosing scope.
This commit is contained in:
Peter Stephenson 2019-08-14 15:16:59 +01:00
parent 4fae525726
commit d946f22a4c
3 changed files with 21 additions and 1 deletions
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6
ChangeLog
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@ -1,3 +1,9 @@
2019-08-14 Peter Stephenson <p.stephenson@samsung.com>
* 44664: Src/params.c, Test/D04parameter.ztst: Ensure
temporary assignment around builtin in function doesn't
trash global variable.
2019-08-03 Peter Stephenson <p.w.stephenson@ntlworld.com>
* 44635: Src/exec.c: don't apply STAT_NOPRINT to backgrounded

4
Src/params.c
View file

@ -1124,8 +1124,10 @@ copyparam(Param tpm, Param pm, int fakecopy)
tpm->base = pm->base;
tpm->width = pm->width;
tpm->level = pm->level;
if (!fakecopy)
if (!fakecopy) {
tpm->old = pm->old;
tpm->node.flags &= ~PM_SPECIAL;
}
switch (PM_TYPE(pm->node.flags)) {
case PM_SCALAR:
tpm->u.str = ztrdup(pm->gsu.s->getfn(pm));

12
Test/D04parameter.ztst
View file

@ -2522,3 +2522,15 @@ F:behavior, see http://austingroupbugs.net/view.php?id=888
>trailing/slashes
>removed
>are/removed
foo=global-value
fn() {
local foo=function-value
foo=export-value true
print $foo
}
fn
print $foo
0:Global variables are not trashed by "foo=bar builtin" (regression test)
>function-value
>global-value