Update to Lua 5.4.6

This commit is contained in:
Jeremy Baxter 2023-07-30 09:57:45 +12:00
parent 57a4014981
commit 8e20d1e382
40 changed files with 997 additions and 733 deletions

View file

@ -60,27 +60,28 @@ const char lua_ident[] =
static TValue *index2value (lua_State *L, int idx) {
CallInfo *ci = L->ci;
if (idx > 0) {
StkId o = ci->func + idx;
api_check(L, idx <= L->ci->top - (ci->func + 1), "unacceptable index");
if (o >= L->top) return &G(L)->nilvalue;
StkId o = ci->func.p + idx;
api_check(L, idx <= ci->top.p - (ci->func.p + 1), "unacceptable index");
if (o >= L->top.p) return &G(L)->nilvalue;
else return s2v(o);
}
else if (!ispseudo(idx)) { /* negative index */
api_check(L, idx != 0 && -idx <= L->top - (ci->func + 1), "invalid index");
return s2v(L->top + idx);
api_check(L, idx != 0 && -idx <= L->top.p - (ci->func.p + 1),
"invalid index");
return s2v(L->top.p + idx);
}
else if (idx == LUA_REGISTRYINDEX)
return &G(L)->l_registry;
else { /* upvalues */
idx = LUA_REGISTRYINDEX - idx;
api_check(L, idx <= MAXUPVAL + 1, "upvalue index too large");
if (ttisCclosure(s2v(ci->func))) { /* C closure? */
CClosure *func = clCvalue(s2v(ci->func));
if (ttisCclosure(s2v(ci->func.p))) { /* C closure? */
CClosure *func = clCvalue(s2v(ci->func.p));
return (idx <= func->nupvalues) ? &func->upvalue[idx-1]
: &G(L)->nilvalue;
}
else { /* light C function or Lua function (through a hook)?) */
api_check(L, ttislcf(s2v(ci->func)), "caller not a C function");
api_check(L, ttislcf(s2v(ci->func.p)), "caller not a C function");
return &G(L)->nilvalue; /* no upvalues */
}
}
@ -94,14 +95,15 @@ static TValue *index2value (lua_State *L, int idx) {
l_sinline StkId index2stack (lua_State *L, int idx) {
CallInfo *ci = L->ci;
if (idx > 0) {
StkId o = ci->func + idx;
api_check(L, o < L->top, "invalid index");
StkId o = ci->func.p + idx;
api_check(L, o < L->top.p, "invalid index");
return o;
}
else { /* non-positive index */
api_check(L, idx != 0 && -idx <= L->top - (ci->func + 1), "invalid index");
api_check(L, idx != 0 && -idx <= L->top.p - (ci->func.p + 1),
"invalid index");
api_check(L, !ispseudo(idx), "invalid index");
return L->top + idx;
return L->top.p + idx;
}
}
@ -112,17 +114,12 @@ LUA_API int lua_checkstack (lua_State *L, int n) {
lua_lock(L);
ci = L->ci;
api_check(L, n >= 0, "negative 'n'");
if (L->stack_last - L->top > n) /* stack large enough? */
if (L->stack_last.p - L->top.p > n) /* stack large enough? */
res = 1; /* yes; check is OK */
else { /* no; need to grow stack */
int inuse = cast_int(L->top - L->stack) + EXTRA_STACK;
if (inuse > LUAI_MAXSTACK - n) /* can grow without overflow? */
res = 0; /* no */
else /* try to grow stack */
res = luaD_growstack(L, n, 0);
}
if (res && ci->top < L->top + n)
ci->top = L->top + n; /* adjust frame top */
else /* need to grow stack */
res = luaD_growstack(L, n, 0);
if (res && ci->top.p < L->top.p + n)
ci->top.p = L->top.p + n; /* adjust frame top */
lua_unlock(L);
return res;
}
@ -134,11 +131,11 @@ LUA_API void lua_xmove (lua_State *from, lua_State *to, int n) {
lua_lock(to);
api_checknelems(from, n);
api_check(from, G(from) == G(to), "moving among independent states");
api_check(from, to->ci->top - to->top >= n, "stack overflow");
from->top -= n;
api_check(from, to->ci->top.p - to->top.p >= n, "stack overflow");
from->top.p -= n;
for (i = 0; i < n; i++) {
setobjs2s(to, to->top, from->top + i);
to->top++; /* stack already checked by previous 'api_check' */
setobjs2s(to, to->top.p, from->top.p + i);
to->top.p++; /* stack already checked by previous 'api_check' */
}
lua_unlock(to);
}
@ -172,12 +169,12 @@ LUA_API lua_Number lua_version (lua_State *L) {
LUA_API int lua_absindex (lua_State *L, int idx) {
return (idx > 0 || ispseudo(idx))
? idx
: cast_int(L->top - L->ci->func) + idx;
: cast_int(L->top.p - L->ci->func.p) + idx;
}
LUA_API int lua_gettop (lua_State *L) {
return cast_int(L->top - (L->ci->func + 1));
return cast_int(L->top.p - (L->ci->func.p + 1));
}
@ -187,24 +184,24 @@ LUA_API void lua_settop (lua_State *L, int idx) {
ptrdiff_t diff; /* difference for new top */
lua_lock(L);
ci = L->ci;
func = ci->func;
func = ci->func.p;
if (idx >= 0) {
api_check(L, idx <= ci->top - (func + 1), "new top too large");
diff = ((func + 1) + idx) - L->top;
api_check(L, idx <= ci->top.p - (func + 1), "new top too large");
diff = ((func + 1) + idx) - L->top.p;
for (; diff > 0; diff--)
setnilvalue(s2v(L->top++)); /* clear new slots */
setnilvalue(s2v(L->top.p++)); /* clear new slots */
}
else {
api_check(L, -(idx+1) <= (L->top - (func + 1)), "invalid new top");
api_check(L, -(idx+1) <= (L->top.p - (func + 1)), "invalid new top");
diff = idx + 1; /* will "subtract" index (as it is negative) */
}
api_check(L, L->tbclist < L->top, "previous pop of an unclosed slot");
newtop = L->top + diff;
if (diff < 0 && L->tbclist >= newtop) {
api_check(L, L->tbclist.p < L->top.p, "previous pop of an unclosed slot");
newtop = L->top.p + diff;
if (diff < 0 && L->tbclist.p >= newtop) {
lua_assert(hastocloseCfunc(ci->nresults));
luaF_close(L, newtop, CLOSEKTOP, 0);
newtop = luaF_close(L, newtop, CLOSEKTOP, 0);
}
L->top = newtop; /* correct top only after closing any upvalue */
L->top.p = newtop; /* correct top only after closing any upvalue */
lua_unlock(L);
}
@ -213,10 +210,9 @@ LUA_API void lua_closeslot (lua_State *L, int idx) {
StkId level;
lua_lock(L);
level = index2stack(L, idx);
api_check(L, hastocloseCfunc(L->ci->nresults) && L->tbclist == level,
api_check(L, hastocloseCfunc(L->ci->nresults) && L->tbclist.p == level,
"no variable to close at given level");
luaF_close(L, level, CLOSEKTOP, 0);
level = index2stack(L, idx); /* stack may be moved */
level = luaF_close(L, level, CLOSEKTOP, 0);
setnilvalue(s2v(level));
lua_unlock(L);
}
@ -245,7 +241,7 @@ l_sinline void reverse (lua_State *L, StkId from, StkId to) {
LUA_API void lua_rotate (lua_State *L, int idx, int n) {
StkId p, t, m;
lua_lock(L);
t = L->top - 1; /* end of stack segment being rotated */
t = L->top.p - 1; /* end of stack segment being rotated */
p = index2stack(L, idx); /* start of segment */
api_check(L, (n >= 0 ? n : -n) <= (t - p + 1), "invalid 'n'");
m = (n >= 0 ? t - n : p - n - 1); /* end of prefix */
@ -264,7 +260,7 @@ LUA_API void lua_copy (lua_State *L, int fromidx, int toidx) {
api_check(L, isvalid(L, to), "invalid index");
setobj(L, to, fr);
if (isupvalue(toidx)) /* function upvalue? */
luaC_barrier(L, clCvalue(s2v(L->ci->func)), fr);
luaC_barrier(L, clCvalue(s2v(L->ci->func.p)), fr);
/* LUA_REGISTRYINDEX does not need gc barrier
(collector revisits it before finishing collection) */
lua_unlock(L);
@ -273,7 +269,7 @@ LUA_API void lua_copy (lua_State *L, int fromidx, int toidx) {
LUA_API void lua_pushvalue (lua_State *L, int idx) {
lua_lock(L);
setobj2s(L, L->top, index2value(L, idx));
setobj2s(L, L->top.p, index2value(L, idx));
api_incr_top(L);
lua_unlock(L);
}
@ -342,12 +338,12 @@ LUA_API void lua_arith (lua_State *L, int op) {
api_checknelems(L, 2); /* all other operations expect two operands */
else { /* for unary operations, add fake 2nd operand */
api_checknelems(L, 1);
setobjs2s(L, L->top, L->top - 1);
setobjs2s(L, L->top.p, L->top.p - 1);
api_incr_top(L);
}
/* first operand at top - 2, second at top - 1; result go to top - 2 */
luaO_arith(L, op, s2v(L->top - 2), s2v(L->top - 1), L->top - 2);
L->top--; /* remove second operand */
luaO_arith(L, op, s2v(L->top.p - 2), s2v(L->top.p - 1), L->top.p - 2);
L->top.p--; /* remove second operand */
lua_unlock(L);
}
@ -373,7 +369,7 @@ LUA_API int lua_compare (lua_State *L, int index1, int index2, int op) {
LUA_API size_t lua_stringtonumber (lua_State *L, const char *s) {
size_t sz = luaO_str2num(s, s2v(L->top));
size_t sz = luaO_str2num(s, s2v(L->top.p));
if (sz != 0)
api_incr_top(L);
return sz;
@ -500,7 +496,7 @@ LUA_API const void *lua_topointer (lua_State *L, int idx) {
LUA_API void lua_pushnil (lua_State *L) {
lua_lock(L);
setnilvalue(s2v(L->top));
setnilvalue(s2v(L->top.p));
api_incr_top(L);
lua_unlock(L);
}
@ -508,7 +504,7 @@ LUA_API void lua_pushnil (lua_State *L) {
LUA_API void lua_pushnumber (lua_State *L, lua_Number n) {
lua_lock(L);
setfltvalue(s2v(L->top), n);
setfltvalue(s2v(L->top.p), n);
api_incr_top(L);
lua_unlock(L);
}
@ -516,7 +512,7 @@ LUA_API void lua_pushnumber (lua_State *L, lua_Number n) {
LUA_API void lua_pushinteger (lua_State *L, lua_Integer n) {
lua_lock(L);
setivalue(s2v(L->top), n);
setivalue(s2v(L->top.p), n);
api_incr_top(L);
lua_unlock(L);
}
@ -531,7 +527,7 @@ LUA_API const char *lua_pushlstring (lua_State *L, const char *s, size_t len) {
TString *ts;
lua_lock(L);
ts = (len == 0) ? luaS_new(L, "") : luaS_newlstr(L, s, len);
setsvalue2s(L, L->top, ts);
setsvalue2s(L, L->top.p, ts);
api_incr_top(L);
luaC_checkGC(L);
lua_unlock(L);
@ -542,11 +538,11 @@ LUA_API const char *lua_pushlstring (lua_State *L, const char *s, size_t len) {
LUA_API const char *lua_pushstring (lua_State *L, const char *s) {
lua_lock(L);
if (s == NULL)
setnilvalue(s2v(L->top));
setnilvalue(s2v(L->top.p));
else {
TString *ts;
ts = luaS_new(L, s);
setsvalue2s(L, L->top, ts);
setsvalue2s(L, L->top.p, ts);
s = getstr(ts); /* internal copy's address */
}
api_incr_top(L);
@ -583,7 +579,7 @@ LUA_API const char *lua_pushfstring (lua_State *L, const char *fmt, ...) {
LUA_API void lua_pushcclosure (lua_State *L, lua_CFunction fn, int n) {
lua_lock(L);
if (n == 0) {
setfvalue(s2v(L->top), fn);
setfvalue(s2v(L->top.p), fn);
api_incr_top(L);
}
else {
@ -592,13 +588,13 @@ LUA_API void lua_pushcclosure (lua_State *L, lua_CFunction fn, int n) {
api_check(L, n <= MAXUPVAL, "upvalue index too large");
cl = luaF_newCclosure(L, n);
cl->f = fn;
L->top -= n;
L->top.p -= n;
while (n--) {
setobj2n(L, &cl->upvalue[n], s2v(L->top + n));
setobj2n(L, &cl->upvalue[n], s2v(L->top.p + n));
/* does not need barrier because closure is white */
lua_assert(iswhite(cl));
}
setclCvalue(L, s2v(L->top), cl);
setclCvalue(L, s2v(L->top.p), cl);
api_incr_top(L);
luaC_checkGC(L);
}
@ -609,9 +605,9 @@ LUA_API void lua_pushcclosure (lua_State *L, lua_CFunction fn, int n) {
LUA_API void lua_pushboolean (lua_State *L, int b) {
lua_lock(L);
if (b)
setbtvalue(s2v(L->top));
setbtvalue(s2v(L->top.p));
else
setbfvalue(s2v(L->top));
setbfvalue(s2v(L->top.p));
api_incr_top(L);
lua_unlock(L);
}
@ -619,7 +615,7 @@ LUA_API void lua_pushboolean (lua_State *L, int b) {
LUA_API void lua_pushlightuserdata (lua_State *L, void *p) {
lua_lock(L);
setpvalue(s2v(L->top), p);
setpvalue(s2v(L->top.p), p);
api_incr_top(L);
lua_unlock(L);
}
@ -627,7 +623,7 @@ LUA_API void lua_pushlightuserdata (lua_State *L, void *p) {
LUA_API int lua_pushthread (lua_State *L) {
lua_lock(L);
setthvalue(L, s2v(L->top), L);
setthvalue(L, s2v(L->top.p), L);
api_incr_top(L);
lua_unlock(L);
return (G(L)->mainthread == L);
@ -644,16 +640,16 @@ l_sinline int auxgetstr (lua_State *L, const TValue *t, const char *k) {
const TValue *slot;
TString *str = luaS_new(L, k);
if (luaV_fastget(L, t, str, slot, luaH_getstr)) {
setobj2s(L, L->top, slot);
setobj2s(L, L->top.p, slot);
api_incr_top(L);
}
else {
setsvalue2s(L, L->top, str);
setsvalue2s(L, L->top.p, str);
api_incr_top(L);
luaV_finishget(L, t, s2v(L->top - 1), L->top - 1, slot);
luaV_finishget(L, t, s2v(L->top.p - 1), L->top.p - 1, slot);
}
lua_unlock(L);
return ttype(s2v(L->top - 1));
return ttype(s2v(L->top.p - 1));
}
@ -680,13 +676,13 @@ LUA_API int lua_gettable (lua_State *L, int idx) {
TValue *t;
lua_lock(L);
t = index2value(L, idx);
if (luaV_fastget(L, t, s2v(L->top - 1), slot, luaH_get)) {
setobj2s(L, L->top - 1, slot);
if (luaV_fastget(L, t, s2v(L->top.p - 1), slot, luaH_get)) {
setobj2s(L, L->top.p - 1, slot);
}
else
luaV_finishget(L, t, s2v(L->top - 1), L->top - 1, slot);
luaV_finishget(L, t, s2v(L->top.p - 1), L->top.p - 1, slot);
lua_unlock(L);
return ttype(s2v(L->top - 1));
return ttype(s2v(L->top.p - 1));
}
@ -702,27 +698,27 @@ LUA_API int lua_geti (lua_State *L, int idx, lua_Integer n) {
lua_lock(L);
t = index2value(L, idx);
if (luaV_fastgeti(L, t, n, slot)) {
setobj2s(L, L->top, slot);
setobj2s(L, L->top.p, slot);
}
else {
TValue aux;
setivalue(&aux, n);
luaV_finishget(L, t, &aux, L->top, slot);
luaV_finishget(L, t, &aux, L->top.p, slot);
}
api_incr_top(L);
lua_unlock(L);
return ttype(s2v(L->top - 1));
return ttype(s2v(L->top.p - 1));
}
l_sinline int finishrawget (lua_State *L, const TValue *val) {
if (isempty(val)) /* avoid copying empty items to the stack */
setnilvalue(s2v(L->top));
setnilvalue(s2v(L->top.p));
else
setobj2s(L, L->top, val);
setobj2s(L, L->top.p, val);
api_incr_top(L);
lua_unlock(L);
return ttype(s2v(L->top - 1));
return ttype(s2v(L->top.p - 1));
}
@ -739,8 +735,8 @@ LUA_API int lua_rawget (lua_State *L, int idx) {
lua_lock(L);
api_checknelems(L, 1);
t = gettable(L, idx);
val = luaH_get(t, s2v(L->top - 1));
L->top--; /* remove key */
val = luaH_get(t, s2v(L->top.p - 1));
L->top.p--; /* remove key */
return finishrawget(L, val);
}
@ -767,7 +763,7 @@ LUA_API void lua_createtable (lua_State *L, int narray, int nrec) {
Table *t;
lua_lock(L);
t = luaH_new(L);
sethvalue2s(L, L->top, t);
sethvalue2s(L, L->top.p, t);
api_incr_top(L);
if (narray > 0 || nrec > 0)
luaH_resize(L, t, narray, nrec);
@ -794,7 +790,7 @@ LUA_API int lua_getmetatable (lua_State *L, int objindex) {
break;
}
if (mt != NULL) {
sethvalue2s(L, L->top, mt);
sethvalue2s(L, L->top.p, mt);
api_incr_top(L);
res = 1;
}
@ -810,12 +806,12 @@ LUA_API int lua_getiuservalue (lua_State *L, int idx, int n) {
o = index2value(L, idx);
api_check(L, ttisfulluserdata(o), "full userdata expected");
if (n <= 0 || n > uvalue(o)->nuvalue) {
setnilvalue(s2v(L->top));
setnilvalue(s2v(L->top.p));
t = LUA_TNONE;
}
else {
setobj2s(L, L->top, &uvalue(o)->uv[n - 1].uv);
t = ttype(s2v(L->top));
setobj2s(L, L->top.p, &uvalue(o)->uv[n - 1].uv);
t = ttype(s2v(L->top.p));
}
api_incr_top(L);
lua_unlock(L);
@ -835,14 +831,14 @@ static void auxsetstr (lua_State *L, const TValue *t, const char *k) {
TString *str = luaS_new(L, k);
api_checknelems(L, 1);
if (luaV_fastget(L, t, str, slot, luaH_getstr)) {
luaV_finishfastset(L, t, slot, s2v(L->top - 1));
L->top--; /* pop value */
luaV_finishfastset(L, t, slot, s2v(L->top.p - 1));
L->top.p--; /* pop value */
}
else {
setsvalue2s(L, L->top, str); /* push 'str' (to make it a TValue) */
setsvalue2s(L, L->top.p, str); /* push 'str' (to make it a TValue) */
api_incr_top(L);
luaV_finishset(L, t, s2v(L->top - 1), s2v(L->top - 2), slot);
L->top -= 2; /* pop value and key */
luaV_finishset(L, t, s2v(L->top.p - 1), s2v(L->top.p - 2), slot);
L->top.p -= 2; /* pop value and key */
}
lua_unlock(L); /* lock done by caller */
}
@ -862,12 +858,12 @@ LUA_API void lua_settable (lua_State *L, int idx) {
lua_lock(L);
api_checknelems(L, 2);
t = index2value(L, idx);
if (luaV_fastget(L, t, s2v(L->top - 2), slot, luaH_get)) {
luaV_finishfastset(L, t, slot, s2v(L->top - 1));
if (luaV_fastget(L, t, s2v(L->top.p - 2), slot, luaH_get)) {
luaV_finishfastset(L, t, slot, s2v(L->top.p - 1));
}
else
luaV_finishset(L, t, s2v(L->top - 2), s2v(L->top - 1), slot);
L->top -= 2; /* pop index and value */
luaV_finishset(L, t, s2v(L->top.p - 2), s2v(L->top.p - 1), slot);
L->top.p -= 2; /* pop index and value */
lua_unlock(L);
}
@ -885,14 +881,14 @@ LUA_API void lua_seti (lua_State *L, int idx, lua_Integer n) {
api_checknelems(L, 1);
t = index2value(L, idx);
if (luaV_fastgeti(L, t, n, slot)) {
luaV_finishfastset(L, t, slot, s2v(L->top - 1));
luaV_finishfastset(L, t, slot, s2v(L->top.p - 1));
}
else {
TValue aux;
setivalue(&aux, n);
luaV_finishset(L, t, &aux, s2v(L->top - 1), slot);
luaV_finishset(L, t, &aux, s2v(L->top.p - 1), slot);
}
L->top--; /* pop value */
L->top.p--; /* pop value */
lua_unlock(L);
}
@ -902,16 +898,16 @@ static void aux_rawset (lua_State *L, int idx, TValue *key, int n) {
lua_lock(L);
api_checknelems(L, n);
t = gettable(L, idx);
luaH_set(L, t, key, s2v(L->top - 1));
luaH_set(L, t, key, s2v(L->top.p - 1));
invalidateTMcache(t);
luaC_barrierback(L, obj2gco(t), s2v(L->top - 1));
L->top -= n;
luaC_barrierback(L, obj2gco(t), s2v(L->top.p - 1));
L->top.p -= n;
lua_unlock(L);
}
LUA_API void lua_rawset (lua_State *L, int idx) {
aux_rawset(L, idx, s2v(L->top - 2), 2);
aux_rawset(L, idx, s2v(L->top.p - 2), 2);
}
@ -927,9 +923,9 @@ LUA_API void lua_rawseti (lua_State *L, int idx, lua_Integer n) {
lua_lock(L);
api_checknelems(L, 1);
t = gettable(L, idx);
luaH_setint(L, t, n, s2v(L->top - 1));
luaC_barrierback(L, obj2gco(t), s2v(L->top - 1));
L->top--;
luaH_setint(L, t, n, s2v(L->top.p - 1));
luaC_barrierback(L, obj2gco(t), s2v(L->top.p - 1));
L->top.p--;
lua_unlock(L);
}
@ -940,11 +936,11 @@ LUA_API int lua_setmetatable (lua_State *L, int objindex) {
lua_lock(L);
api_checknelems(L, 1);
obj = index2value(L, objindex);
if (ttisnil(s2v(L->top - 1)))
if (ttisnil(s2v(L->top.p - 1)))
mt = NULL;
else {
api_check(L, ttistable(s2v(L->top - 1)), "table expected");
mt = hvalue(s2v(L->top - 1));
api_check(L, ttistable(s2v(L->top.p - 1)), "table expected");
mt = hvalue(s2v(L->top.p - 1));
}
switch (ttype(obj)) {
case LUA_TTABLE: {
@ -968,7 +964,7 @@ LUA_API int lua_setmetatable (lua_State *L, int objindex) {
break;
}
}
L->top--;
L->top.p--;
lua_unlock(L);
return 1;
}
@ -984,11 +980,11 @@ LUA_API int lua_setiuservalue (lua_State *L, int idx, int n) {
if (!(cast_uint(n) - 1u < cast_uint(uvalue(o)->nuvalue)))
res = 0; /* 'n' not in [1, uvalue(o)->nuvalue] */
else {
setobj(L, &uvalue(o)->uv[n - 1].uv, s2v(L->top - 1));
luaC_barrierback(L, gcvalue(o), s2v(L->top - 1));
setobj(L, &uvalue(o)->uv[n - 1].uv, s2v(L->top.p - 1));
luaC_barrierback(L, gcvalue(o), s2v(L->top.p - 1));
res = 1;
}
L->top--;
L->top.p--;
lua_unlock(L);
return res;
}
@ -1000,7 +996,8 @@ LUA_API int lua_setiuservalue (lua_State *L, int idx, int n) {
#define checkresults(L,na,nr) \
api_check(L, (nr) == LUA_MULTRET || (L->ci->top - L->top >= (nr) - (na)), \
api_check(L, (nr) == LUA_MULTRET \
|| (L->ci->top.p - L->top.p >= (nr) - (na)), \
"results from function overflow current stack size")
@ -1013,7 +1010,7 @@ LUA_API void lua_callk (lua_State *L, int nargs, int nresults,
api_checknelems(L, nargs+1);
api_check(L, L->status == LUA_OK, "cannot do calls on non-normal thread");
checkresults(L, nargs, nresults);
func = L->top - (nargs+1);
func = L->top.p - (nargs+1);
if (k != NULL && yieldable(L)) { /* need to prepare continuation? */
L->ci->u.c.k = k; /* save continuation */
L->ci->u.c.ctx = ctx; /* save context */
@ -1061,7 +1058,7 @@ LUA_API int lua_pcallk (lua_State *L, int nargs, int nresults, int errfunc,
api_check(L, ttisfunction(s2v(o)), "error handler must be a function");
func = savestack(L, o);
}
c.func = L->top - (nargs+1); /* function to be called */
c.func = L->top.p - (nargs+1); /* function to be called */
if (k == NULL || !yieldable(L)) { /* no continuation or no yieldable? */
c.nresults = nresults; /* do a 'conventional' protected call */
status = luaD_pcall(L, f_call, &c, savestack(L, c.func), func);
@ -1096,12 +1093,12 @@ LUA_API int lua_load (lua_State *L, lua_Reader reader, void *data,
luaZ_init(L, &z, reader, data);
status = luaD_protectedparser(L, &z, chunkname, mode);
if (status == LUA_OK) { /* no errors? */
LClosure *f = clLvalue(s2v(L->top - 1)); /* get newly created function */
LClosure *f = clLvalue(s2v(L->top.p - 1)); /* get new function */
if (f->nupvalues >= 1) { /* does it have an upvalue? */
/* get global table from registry */
const TValue *gt = getGtable(L);
/* set global table as 1st upvalue of 'f' (may be LUA_ENV) */
setobj(L, f->upvals[0]->v, gt);
setobj(L, f->upvals[0]->v.p, gt);
luaC_barrier(L, f->upvals[0], gt);
}
}
@ -1115,7 +1112,7 @@ LUA_API int lua_dump (lua_State *L, lua_Writer writer, void *data, int strip) {
TValue *o;
lua_lock(L);
api_checknelems(L, 1);
o = s2v(L->top - 1);
o = s2v(L->top.p - 1);
if (isLfunction(o))
status = luaU_dump(L, getproto(o), writer, data, strip);
else
@ -1241,7 +1238,7 @@ LUA_API int lua_gc (lua_State *L, int what, ...) {
LUA_API int lua_error (lua_State *L) {
TValue *errobj;
lua_lock(L);
errobj = s2v(L->top - 1);
errobj = s2v(L->top.p - 1);
api_checknelems(L, 1);
/* error object is the memory error message? */
if (ttisshrstring(errobj) && eqshrstr(tsvalue(errobj), G(L)->memerrmsg))
@ -1259,12 +1256,12 @@ LUA_API int lua_next (lua_State *L, int idx) {
lua_lock(L);
api_checknelems(L, 1);
t = gettable(L, idx);
more = luaH_next(L, t, L->top - 1);
more = luaH_next(L, t, L->top.p - 1);
if (more) {
api_incr_top(L);
}
else /* no more elements */
L->top -= 1; /* remove key */
L->top.p -= 1; /* remove key */
lua_unlock(L);
return more;
}
@ -1276,7 +1273,7 @@ LUA_API void lua_toclose (lua_State *L, int idx) {
lua_lock(L);
o = index2stack(L, idx);
nresults = L->ci->nresults;
api_check(L, L->tbclist < o, "given index below or equal a marked one");
api_check(L, L->tbclist.p < o, "given index below or equal a marked one");
luaF_newtbcupval(L, o); /* create new to-be-closed upvalue */
if (!hastocloseCfunc(nresults)) /* function not marked yet? */
L->ci->nresults = codeNresults(nresults); /* mark it */
@ -1291,7 +1288,7 @@ LUA_API void lua_concat (lua_State *L, int n) {
if (n > 0)
luaV_concat(L, n);
else { /* nothing to concatenate */
setsvalue2s(L, L->top, luaS_newlstr(L, "", 0)); /* push empty string */
setsvalue2s(L, L->top.p, luaS_newlstr(L, "", 0)); /* push empty string */
api_incr_top(L);
}
luaC_checkGC(L);
@ -1303,7 +1300,7 @@ LUA_API void lua_len (lua_State *L, int idx) {
TValue *t;
lua_lock(L);
t = index2value(L, idx);
luaV_objlen(L, L->top, t);
luaV_objlen(L, L->top.p, t);
api_incr_top(L);
lua_unlock(L);
}
@ -1348,7 +1345,7 @@ LUA_API void *lua_newuserdatauv (lua_State *L, size_t size, int nuvalue) {
lua_lock(L);
api_check(L, 0 <= nuvalue && nuvalue < USHRT_MAX, "invalid value");
u = luaS_newudata(L, size, nuvalue);
setuvalue(L, s2v(L->top), u);
setuvalue(L, s2v(L->top.p), u);
api_incr_top(L);
luaC_checkGC(L);
lua_unlock(L);
@ -1374,7 +1371,7 @@ static const char *aux_upvalue (TValue *fi, int n, TValue **val,
Proto *p = f->p;
if (!(cast_uint(n) - 1u < cast_uint(p->sizeupvalues)))
return NULL; /* 'n' not in [1, p->sizeupvalues] */
*val = f->upvals[n-1]->v;
*val = f->upvals[n-1]->v.p;
if (owner) *owner = obj2gco(f->upvals[n - 1]);
name = p->upvalues[n-1].name;
return (name == NULL) ? "(no name)" : getstr(name);
@ -1390,7 +1387,7 @@ LUA_API const char *lua_getupvalue (lua_State *L, int funcindex, int n) {
lua_lock(L);
name = aux_upvalue(index2value(L, funcindex), n, &val, NULL);
if (name) {
setobj2s(L, L->top, val);
setobj2s(L, L->top.p, val);
api_incr_top(L);
}
lua_unlock(L);
@ -1408,8 +1405,8 @@ LUA_API const char *lua_setupvalue (lua_State *L, int funcindex, int n) {
api_checknelems(L, 1);
name = aux_upvalue(fi, n, &val, &owner);
if (name) {
L->top--;
setobj(L, val, s2v(L->top));
L->top.p--;
setobj(L, val, s2v(L->top.p));
luaC_barrier(L, owner, val);
}
lua_unlock(L);