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49433: Don't assume EPROG references are bounded by function depth. 

We use references for efficient function copy, so there is no useful limit any more.
This commit is contained in:
Peter Stephenson 2021-10-05 16:45:55 +01:00
parent fa4c88ca25
commit 0b3b259794
2 changed files with 5 additions and 4 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
2021-10-05 Peter Stephenson <p.stephenson@samsung.com>
* 49433: Src/parse.c: Assuming EPROG references are bounded by
function depth is incorrect as we have efficient function copy.
2021-10-04 Bart Schaefer <schaefer@zsh.org>
* 49456: Doc/Zsh/mod_private.yo, Doc/Zsh/params.yo,

4
Src/parse.c
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@ -2811,10 +2811,6 @@ freeeprog(Eprog p)
DPUTS(p->nref > 0 && (p->flags & EF_HEAP), "Heap EPROG has nref > 0");
DPUTS(p->nref < 0 && !(p->flags & EF_HEAP), "Real EPROG has nref < 0");
DPUTS(p->nref < -1, "Uninitialised EPROG nref");
#ifdef MAX_FUNCTION_DEPTH
DPUTS(zsh_funcnest >=0 && p->nref > zsh_funcnest + 10,
"Overlarge EPROG nref");
#endif
if (p->nref > 0 && !--p->nref) {
for (i = p->npats, pp = p->pats; i--; pp++)
freepatprog(*pp);