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No more field 'lua_State.stacksize'

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The stack size is derived from 'stack_last', when needed. Moreover,
the handling of stack sizes is more consistent, always excluding the
extra space except when allocating/deallocating the array.
This commit is contained in:
Roberto Ierusalimschy
2020-10-06 15:50:24 -03:00
parent 9ecd446141
commit 5aa36e894f
6 changed files with 29 additions and 26 deletions
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8
ltests.c
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@@ -430,17 +430,17 @@ static void checkstack (global_State *g, lua_State *L1) {
UpVal *uv;
lua_assert(!isdead(g, L1));
if (L1->stack == NULL) { /* incomplete thread? */
lua_assert(L1->stacksize == 0 && L1->openupval == NULL &&
L1->ci == NULL);
lua_assert(L1->openupval == NULL && L1->ci == NULL);
return;
}
for (uv = L1->openupval; uv != NULL; uv = uv->u.open.next)
lua_assert(upisopen(uv)); /* must be open */
lua_assert(L1->top <= L1->stack_last);
for (ci = L1->ci; ci != NULL; ci = ci->previous) {
lua_assert(ci->top <= L1->stack_last);
lua_assert(lua_checkpc(ci));
}
for (o = L1->stack; o < L1->stack_last + EXTRA_STACK; o++)
for (o = L1->stack; o < L1->stack_last; o++)
checkliveness(L1, s2v(o)); /* entire stack must have valid values */
}
@@ -969,7 +969,7 @@ static int hash_query (lua_State *L) {
static int stacklevel (lua_State *L) {
unsigned long a = 0;
lua_pushinteger(L, (L->top - L->stack));
lua_pushinteger(L, (L->stack_last - L->stack));
lua_pushinteger(L, stacksize(L));
lua_pushinteger(L, L->nCcalls);
lua_pushinteger(L, L->nci);
lua_pushinteger(L, (unsigned long)&a);