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API asserts for illegal pops of to-be-closed variables

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This commit is contained in:
Roberto Ierusalimschy
2024-03-11 14:05:06 -03:00
parent 7237eb3f1c
commit 65b07dd53d
5 changed files with 45 additions and 30 deletions
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14
lapi.h
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@@ -29,8 +29,18 @@
/* Ensure the stack has at least 'n' elements */
#define api_checknelems(L,n) \
api_check(L, (n) < (L->top.p - L->ci->func.p), \
"not enough elements in the stack")
api_check(L, (n) < (L->top.p - L->ci->func.p), \
"not enough elements in the stack")
/* Ensure the stack has at least 'n' elements to be popped. (Some
** functions only update a slot after checking it for popping, but that
** is only an optimization for a pop followed by a push.)
*/
#define api_checkpop(L,n) \
api_check(L, (n) < L->top.p - L->ci->func.p && \
L->tbclist.p < L->top.p - (n), \
"not enough free elements in the stack")
/*