void luaD_callTM (lua_State *L, Closure *f, int nParams, int nResults) {
StkId base = L->top - nParams;
luaD_openstack(L, base);
clvalue(base) = f;
ttype(base) = LUA_TFUNCTION;
luaD_call(L, base, nResults);
}
static void do_unprotectedrun (lua_CFunction f, int32 nParams, int32 nResults)
{
StkId base = (L->stack.top-L->stack.stack)-nParams;
luaD_openstack(nParams);
L->stack.stack[base].ttype = LUA_T_CPROTO;
L->stack.stack[base].value.f = f;
luaD_call(base+1, nResults);
}
int32 lua_callfunction(lua_Object function) {
if (function == LUA_NOOBJECT) {
return 1;
} else {
luaD_openstack((lua_state->stack.top - lua_state->stack.stack) - lua_state->Cstack.base);
set_normalized(lua_state->stack.stack + lua_state->Cstack.base, Address(function));
return luaD_protectedrun(MULT_RET);
}
}
void luaD_callTM(TObject *f, int32 nParams, int32 nResults) {
luaD_openstack(nParams);
*(lua_state->stack.top - nParams - 1) = *f;
lua_state->state_counter1++;
lua_state->state_counter2++;
luaD_call((lua_state->stack.top - lua_state->stack.stack) - nParams, nResults);
lua_state->state_counter2--;
lua_state->state_counter1--;
}
int lua_callfunction (lua_Object function)
{
if (function == LUA_NOOBJECT)
return 1;
else {
luaD_openstack((L->stack.top-L->stack.stack)-L->Cstack.base);
set_normalized(L->stack.stack+L->Cstack.base, Address(function));
return luaD_protectedrun();
}
}
void runtasks(LState *const rootState) {
lua_state = lua_state->next;
while (lua_state) {
LState *nextState = NULL;
bool stillRunning;
if (!lua_state->updated && !lua_state->paused) {
jmp_buf errorJmp;
lua_state->errorJmp = &errorJmp;
if (setjmp(errorJmp)) {
lua_Task *t, *m;
for (t = lua_state->task; t != NULL;) {
m = t->next;
luaM_free(t);
t = m;
}
stillRunning = false;
lua_state->task = NULL;
} else {
if (lua_state->task) {
stillRunning = luaD_call(lua_state->task->some_base, lua_state->task->some_results);
} else {
StkId base = lua_state->Cstack.base;
luaD_openstack((lua_state->stack.top - lua_state->stack.stack) - base);
set_normalized(lua_state->stack.stack + lua_state->Cstack.base, &lua_state->taskFunc);
stillRunning = luaD_call(base + 1, 255);
}
}
nextState = lua_state->next;
// The state returned. Delete it
if (!stillRunning) {
lua_statedeinit(lua_state);
luaM_free(lua_state);
} else {
lua_state->updated = true;
}
} else {
nextState = lua_state->next;
}
lua_state = nextState;
}
// Restore the value of lua_state to the main script
lua_state = rootState;
// Check for states that may have been created in this run.
LState *state = lua_state->next;
while (state) {
if (!state->paused && !state->updated) {
// New state! Run a new pass.
runtasks(rootState);
return;
}
state = state->next;
}
}
/*
** Call a function (C or Lua). The function to be called is at *func.
** The arguments are on the stack, right after the function.
** When returns, the results are on the stack, starting at the original
** function position.
** The number of results is nResults, unless nResults=LUA_MULTRET.
*/
void luaD_call (lua_State *L, StkId func, int nResults) {
lua_Hook callhook;
StkId firstResult;
CallInfo ci;
Closure *cl;
if (ttype(func) != LUA_TFUNCTION) {
/* `func' is not a function; check the `function' tag method */
Closure *tm = luaT_gettmbyObj(L, func, TM_FUNCTION);
if (tm == NULL)
luaG_typeerror(L, func, "call");
luaD_openstack(L, func);
clvalue(func) = tm; /* tag method is the new function to be called */
ttype(func) = LUA_TFUNCTION;
}
cl = clvalue(func);
ci.func = cl;
infovalue(func) = &ci;
ttype(func) = LUA_TMARK;
callhook = L->callhook;
if (callhook)
luaD_callHook(L, func, callhook, "call");
firstResult = (cl->isC ? callCclosure(L, cl, func+1) :
luaV_execute(L, cl, func+1));
if (callhook) /* same hook that was active at entry */
luaD_callHook(L, func, callhook, "return");
LUA_ASSERT(ttype(func) == LUA_TMARK, "invalid tag");
/* move results to `func' (to erase parameters and function) */
if (nResults == LUA_MULTRET) {
while (firstResult < L->top) /* copy all results */
*func++ = *firstResult++;
L->top = func;
}
else { /* copy at most `nResults' */
for (; nResults > 0 && firstResult < L->top; nResults--)
*func++ = *firstResult++;
L->top = func;
for (; nResults > 0; nResults--) { /* if there are not enough results */
ttype(L->top) = LUA_TNIL; /* adjust the stack */
incr_top; /* must check stack space */
}
}
luaC_checkGC(L);
}
void luaD_callTM (TObject *f, int nParams, int nResults) {
luaD_openstack(nParams);
*(L->stack.top-nParams-1) = *f;
luaD_calln(nParams, nResults);
}
static lua_Object put_luaObjectonTop (void) {
luaD_openstack((L->stack.top-L->stack.stack)-L->Cstack.base);
L->stack.stack[L->Cstack.base++] = *(--L->stack.top);
return L->Cstack.base; /* this is +1 real position (see Ref) */
}
static lua_Object put_luaObject (TObject *o) {
luaD_openstack((L->stack.top-L->stack.stack)-L->Cstack.base);
L->stack.stack[L->Cstack.base++] = *o;
return L->Cstack.base; /* this is +1 real position (see Ref) */
}
static lua_Object put_luaObjectonTop() {
luaD_openstack((lua_state->stack.top - lua_state->stack.stack) - lua_state->Cstack.base);
lua_state->stack.stack[lua_state->Cstack.base++] = *(--lua_state->stack.top);
return lua_state->Cstack.base; // this is +1 real position (see Ref)
}
/*
** Execute the given opcode, until a RET. Parameters are between
** [stack+base,top). Returns n such that the the results are between
** [stack+n,top).
*/
StkId luaV_execute (struct CallInfo *ci)
{
/* Save index in case CallInfo array is realloc'd */
int32 ci_index = ci - L->base_ci;
struct Stack *S = &L->stack; /* to optimize */
Closure *cl;
TProtoFunc *tf;
StkId base;
Byte *pc;
TObject *consts;
newfunc:
cl = L->ci->c;
tf = L->ci->tf;
base = L->ci->base;
if (S->top-S->stack > base && ttype(S->stack+base) == LUA_T_LINE)
base++;
pc = L->ci->pc;
consts = tf->consts;
while (1) {
int32 aux;
switch ((OpCode)(aux = *pc++)) {
case PUSHNIL0:
ttype(S->top++) = LUA_T_NIL;
break;
case PUSHNIL:
aux = *pc++;
do {
ttype(S->top++) = LUA_T_NIL;
} while (aux--);
break;
case PUSHNUMBER:
aux = *pc++; goto pushnumber;
case PUSHNUMBERW:
aux = next_word(pc); goto pushnumber;
case PUSHNUMBER0: case PUSHNUMBER1: case PUSHNUMBER2:
aux -= PUSHNUMBER0;
pushnumber:
ttype(S->top) = LUA_T_NUMBER;
nvalue(S->top) = (real)aux;
S->top++;
break;
case PUSHLOCAL:
aux = *pc++; goto pushlocal;
case PUSHLOCAL0: case PUSHLOCAL1: case PUSHLOCAL2: case PUSHLOCAL3:
case PUSHLOCAL4: case PUSHLOCAL5: case PUSHLOCAL6: case PUSHLOCAL7:
aux -= PUSHLOCAL0;
pushlocal:
*S->top++ = *((S->stack+base) + aux);
break;
case GETGLOBALW:
aux = next_word(pc); goto getglobal;
case GETGLOBAL:
aux = *pc++; goto getglobal;
case GETGLOBAL0: case GETGLOBAL1: case GETGLOBAL2: case GETGLOBAL3:
case GETGLOBAL4: case GETGLOBAL5: case GETGLOBAL6: case GETGLOBAL7:
aux -= GETGLOBAL0;
getglobal:
luaV_getglobal(tsvalue(&consts[aux]));
break;
case GETTABLE:
luaV_gettable();
break;
case GETDOTTEDW:
aux = next_word(pc); goto getdotted;
case GETDOTTED:
aux = *pc++; goto getdotted;
case GETDOTTED0: case GETDOTTED1: case GETDOTTED2: case GETDOTTED3:
case GETDOTTED4: case GETDOTTED5: case GETDOTTED6: case GETDOTTED7:
aux -= GETDOTTED0;
getdotted:
*S->top++ = consts[aux];
luaV_gettable();
break;
case PUSHSELFW:
aux = next_word(pc); goto pushself;
case PUSHSELF:
aux = *pc++; goto pushself;
case PUSHSELF0: case PUSHSELF1: case PUSHSELF2: case PUSHSELF3:
case PUSHSELF4: case PUSHSELF5: case PUSHSELF6: case PUSHSELF7:
aux -= PUSHSELF0;
pushself: {
TObject receiver = *(S->top-1);
*S->top++ = consts[aux];
luaV_gettable();
*S->top++ = receiver;
break;
}
case PUSHCONSTANTW:
aux = next_word(pc); goto pushconstant;
case PUSHCONSTANT:
aux = *pc++; goto pushconstant;
case PUSHCONSTANT0: case PUSHCONSTANT1: case PUSHCONSTANT2:
case PUSHCONSTANT3: case PUSHCONSTANT4: case PUSHCONSTANT5:
case PUSHCONSTANT6: case PUSHCONSTANT7:
aux -= PUSHCONSTANT0;
pushconstant:
*S->top++ = consts[aux];
break;
case PUSHUPVALUE:
aux = *pc++; goto pushupvalue;
case PUSHUPVALUE0: case PUSHUPVALUE1:
aux -= PUSHUPVALUE0;
pushupvalue:
*S->top++ = cl->consts[aux+1];
break;
case SETLOCAL:
aux = *pc++; goto setlocal;
case SETLOCAL0: case SETLOCAL1: case SETLOCAL2: case SETLOCAL3:
case SETLOCAL4: case SETLOCAL5: case SETLOCAL6: case SETLOCAL7:
aux -= SETLOCAL0;
setlocal:
*((S->stack+base) + aux) = *(--S->top);
break;
case SETGLOBALW:
aux = next_word(pc); goto setglobal;
case SETGLOBAL:
aux = *pc++; goto setglobal;
case SETGLOBAL0: case SETGLOBAL1: case SETGLOBAL2: case SETGLOBAL3:
case SETGLOBAL4: case SETGLOBAL5: case SETGLOBAL6: case SETGLOBAL7:
aux -= SETGLOBAL0;
setglobal:
luaV_setglobal(tsvalue(&consts[aux]));
break;
case SETTABLE0:
luaV_settable(S->top-3, 1);
break;
case SETTABLE:
luaV_settable(S->top-3-(*pc++), 2);
break;
case SETLISTW:
aux = next_word(pc); aux *= LFIELDS_PER_FLUSH; goto setlist;
case SETLIST:
aux = *(pc++) * LFIELDS_PER_FLUSH; goto setlist;
case SETLIST0:
aux = 0;
setlist: {
int32 n = *(pc++);
TObject *arr = S->top-n-1;
for (; n; n--) {
ttype(S->top) = LUA_T_NUMBER;
nvalue(S->top) = (real)(n+aux);
*(luaH_set(avalue(arr), S->top)) = *(S->top-1);
S->top--;
}
break;
}
case SETMAP0:
aux = 0; goto setmap;
case SETMAP:
aux = *pc++;
setmap: {
TObject *arr = S->top-(2*aux)-3;
do {
*(luaH_set(avalue(arr), S->top-2)) = *(S->top-1);
S->top-=2;
} while (aux--);
break;
}
case POP:
aux = *pc++; goto pop;
case POP0: case POP1:
aux -= POP0;
pop:
S->top -= (aux+1);
break;
case CREATEARRAYW:
aux = next_word(pc); goto createarray;
case CREATEARRAY0: case CREATEARRAY1:
aux -= CREATEARRAY0; goto createarray;
case CREATEARRAY:
aux = *pc++;
createarray:
luaC_checkGC();
avalue(S->top) = luaH_new(aux);
ttype(S->top) = LUA_T_ARRAY;
S->top++;
break;
case EQOP: case NEQOP: {
int32 res = luaO_equalObj(S->top-2, S->top-1);
S->top--;
if (aux == NEQOP) res = !res;
ttype(S->top-1) = res ? LUA_T_NUMBER : LUA_T_NIL;
nvalue(S->top-1) = 1;
break;
}
case LTOP:
comparison(LUA_T_NUMBER, LUA_T_NIL, LUA_T_NIL, IM_LT);
break;
case LEOP:
comparison(LUA_T_NUMBER, LUA_T_NUMBER, LUA_T_NIL, IM_LE);
break;
case GTOP:
comparison(LUA_T_NIL, LUA_T_NIL, LUA_T_NUMBER, IM_GT);
break;
case GEOP:
comparison(LUA_T_NIL, LUA_T_NUMBER, LUA_T_NUMBER, IM_GE);
break;
case ADDOP: {
TObject *l = S->top-2;
TObject *r = S->top-1;
if (tonumber(r) || tonumber(l))
call_arith(IM_ADD);
else {
nvalue(l) += nvalue(r);
--S->top;
}
break;
}
case SUBOP: {
TObject *l = S->top-2;
TObject *r = S->top-1;
if (tonumber(r) || tonumber(l))
call_arith(IM_SUB);
else {
nvalue(l) -= nvalue(r);
--S->top;
}
break;
}
case MULTOP: {
TObject *l = S->top-2;
TObject *r = S->top-1;
if (tonumber(r) || tonumber(l))
call_arith(IM_MUL);
else {
nvalue(l) *= nvalue(r);
--S->top;
}
break;
}
case DIVOP: {
TObject *l = S->top-2;
TObject *r = S->top-1;
if (tonumber(r) || tonumber(l))
call_arith(IM_DIV);
else {
nvalue(l) /= nvalue(r);
--S->top;
}
break;
}
case POWOP:
call_binTM(IM_POW, "undefined operation");
break;
case CONCOP: {
TObject *l = S->top-2;
TObject *r = S->top-1;
if (tostring(l) || tostring(r))
call_binTM(IM_CONCAT, "unexpected type for concatenation");
else {
tsvalue(l) = strconc(tsvalue(l), tsvalue(r));
--S->top;
}
luaC_checkGC();
break;
}
case MINUSOP:
if (tonumber(S->top-1)) {
ttype(S->top) = LUA_T_NIL;
S->top++;
call_arith(IM_UNM);
}
else
nvalue(S->top-1) = - nvalue(S->top-1);
break;
case NOTOP:
ttype(S->top-1) =
(ttype(S->top-1) == LUA_T_NIL) ? LUA_T_NUMBER : LUA_T_NIL;
nvalue(S->top-1) = 1;
break;
case ONTJMPW:
aux = next_word(pc); goto ontjmp;
case ONTJMP:
aux = *pc++;
ontjmp:
if (ttype(S->top-1) != LUA_T_NIL) pc += aux;
else S->top--;
break;
case ONFJMPW:
aux = next_word(pc); goto onfjmp;
case ONFJMP:
aux = *pc++;
onfjmp:
if (ttype(S->top-1) == LUA_T_NIL) pc += aux;
else S->top--;
break;
case JMPW:
aux = next_word(pc); goto jmp;
case JMP:
aux = *pc++;
jmp:
pc += aux;
break;
case IFFJMPW:
aux = next_word(pc); goto iffjmp;
case IFFJMP:
aux = *pc++;
iffjmp:
if (ttype(--S->top) == LUA_T_NIL) pc += aux;
break;
case IFTUPJMPW:
aux = next_word(pc); goto iftupjmp;
case IFTUPJMP:
aux = *pc++;
iftupjmp:
if (ttype(--S->top) != LUA_T_NIL) pc -= aux;
break;
case IFFUPJMPW:
aux = next_word(pc); goto iffupjmp;
case IFFUPJMP:
aux = *pc++;
iffupjmp:
if (ttype(--S->top) == LUA_T_NIL) pc -= aux;
break;
case CLOSURE:
aux = *pc++;
goto closure;
case CLOSURE0:
aux = 0;
goto closure;
case CLOSURE1:
aux = 1;
closure:
luaV_closure(aux);
luaC_checkGC();
break;
case CALLFUNC:
aux = *pc++; goto callfunc;
case CALLFUNC0: case CALLFUNC1:
aux -= CALLFUNC0;
callfunc: {
StkId newBase = (S->top-S->stack)-(*pc++);
TObject *func = S->stack+newBase-1;
L->ci->pc = pc;
if (ttype(func) == LUA_T_PROTO ||
(ttype(func) == LUA_T_CLOSURE &&
ttype(&clvalue(func)->consts[0]) == LUA_T_PROTO)) {
/* Calling another Lua function */
luaD_precall(func, newBase, aux);
ttype(func) = (ttype(func) == LUA_T_PROTO) ?
LUA_T_PMARK : LUA_T_CLMARK;
goto newfunc;
}
luaD_call(newBase, aux);
if (L->Tstate != RUN) {
if (ci_index > 1) /* C functions detected by break_here */
lua_error("Cannot yield through method call");
return -1;
}
break;
}
case ENDCODE:
S->top = S->stack + base;
/* goes through */
case RETCODE: {
StkId firstResult = (base + ((aux==RETCODE) ? *pc : 0));
if (lua_callhook)
luaD_callHook(base, NULL, 1);
/* If returning from the original stack frame, terminate */
if (L->ci == L->base_ci + ci_index)
return firstResult;
luaD_postret(firstResult);
goto newfunc;
}
case SETLINEW:
aux = next_word(pc); goto setline;
case SETLINE:
aux = *pc++;
setline:
if ((S->stack+base-1)->ttype != LUA_T_LINE) {
/* open space for LINE value */
luaD_openstack((S->top-S->stack)-base);
base++;
(S->stack+base-1)->ttype = LUA_T_LINE;
}
(S->stack+base-1)->value.i = aux;
if (lua_linehook)
luaD_lineHook(aux);
break;
#ifdef DEBUG
default:
LUA_INTERNALERROR("opcode doesn't match");
#endif
}
}
}
StkId luaV_execute(lua_Task *task) {
if (!task->some_flag) {
luaD_checkstack((*task->pc++) + EXTRA_STACK);
if (*task->pc < ZEROVARARG) {
luaD_adjusttop(task->base + *(task->pc++));
} else {
luaC_checkGC();
adjust_varargs(task->base + (*task->pc++) - ZEROVARARG);
}
task->some_flag = 1;
}
lua_state->state_counter2++;
while (1) {
switch ((OpCode)(task->aux = *task->pc++)) {
case PUSHNIL0:
ttype(task->S->top++) = LUA_T_NIL;
break;
case PUSHNIL:
task->aux = *task->pc++;
do {
ttype(task->S->top++) = LUA_T_NIL;
} while (task->aux--);
break;
case PUSHNUMBER:
task->aux = *task->pc++;
goto pushnumber;
case PUSHNUMBERW:
task->aux = next_word(task->pc);
goto pushnumber;
case PUSHNUMBER0:
case PUSHNUMBER1:
case PUSHNUMBER2:
task->aux -= PUSHNUMBER0;
pushnumber:
ttype(task->S->top) = LUA_T_NUMBER;
nvalue(task->S->top) = (float)task->aux;
task->S->top++;
break;
case PUSHLOCAL:
task->aux = *task->pc++;
goto pushlocal;
case PUSHLOCAL0:
case PUSHLOCAL1:
case PUSHLOCAL2:
case PUSHLOCAL3:
case PUSHLOCAL4:
case PUSHLOCAL5:
case PUSHLOCAL6:
case PUSHLOCAL7:
task->aux -= PUSHLOCAL0;
pushlocal:
*task->S->top++ = *((task->S->stack + task->base) + task->aux);
break;
case GETGLOBALW:
task->aux = next_word(task->pc);
goto getglobal;
case GETGLOBAL:
task->aux = *task->pc++;
goto getglobal;
case GETGLOBAL0:
case GETGLOBAL1:
case GETGLOBAL2:
case GETGLOBAL3:
case GETGLOBAL4:
case GETGLOBAL5:
case GETGLOBAL6:
case GETGLOBAL7:
task->aux -= GETGLOBAL0;
getglobal:
luaV_getglobal(tsvalue(&task->consts[task->aux]));
break;
case GETTABLE:
luaV_gettable();
break;
case GETDOTTEDW:
task->aux = next_word(task->pc); goto getdotted;
case GETDOTTED:
task->aux = *task->pc++;
goto getdotted;
case GETDOTTED0:
case GETDOTTED1:
case GETDOTTED2:
case GETDOTTED3:
case GETDOTTED4:
case GETDOTTED5:
case GETDOTTED6:
case GETDOTTED7:
task->aux -= GETDOTTED0;
getdotted:
*task->S->top++ = task->consts[task->aux];
luaV_gettable();
break;
case PUSHSELFW:
task->aux = next_word(task->pc);
goto pushself;
case PUSHSELF:
task->aux = *task->pc++;
goto pushself;
case PUSHSELF0:
case PUSHSELF1:
case PUSHSELF2:
case PUSHSELF3:
case PUSHSELF4:
case PUSHSELF5:
case PUSHSELF6:
case PUSHSELF7:
task->aux -= PUSHSELF0;
pushself:
{
TObject receiver = *(task->S->top - 1);
*task->S->top++ = task->consts[task->aux];
luaV_gettable();
*task->S->top++ = receiver;
break;
}
case PUSHCONSTANTW:
task->aux = next_word(task->pc);
goto pushconstant;
case PUSHCONSTANT:
task->aux = *task->pc++; goto pushconstant;
case PUSHCONSTANT0:
case PUSHCONSTANT1:
case PUSHCONSTANT2:
case PUSHCONSTANT3:
case PUSHCONSTANT4:
case PUSHCONSTANT5:
case PUSHCONSTANT6:
case PUSHCONSTANT7:
task->aux -= PUSHCONSTANT0;
pushconstant:
*task->S->top++ = task->consts[task->aux];
break;
case PUSHUPVALUE:
task->aux = *task->pc++;
goto pushupvalue;
case PUSHUPVALUE0:
case PUSHUPVALUE1:
task->aux -= PUSHUPVALUE0;
pushupvalue:
*task->S->top++ = task->cl->consts[task->aux + 1];
break;
case SETLOCAL:
task->aux = *task->pc++;
goto setlocal;
case SETLOCAL0:
case SETLOCAL1:
case SETLOCAL2:
case SETLOCAL3:
case SETLOCAL4:
case SETLOCAL5:
case SETLOCAL6:
case SETLOCAL7:
task->aux -= SETLOCAL0;
setlocal:
*((task->S->stack + task->base) + task->aux) = *(--task->S->top);
break;
case SETGLOBALW:
task->aux = next_word(task->pc);
goto setglobal;
case SETGLOBAL:
task->aux = *task->pc++;
goto setglobal;
case SETGLOBAL0:
case SETGLOBAL1:
case SETGLOBAL2:
case SETGLOBAL3:
case SETGLOBAL4:
case SETGLOBAL5:
case SETGLOBAL6:
case SETGLOBAL7:
task->aux -= SETGLOBAL0;
setglobal:
luaV_setglobal(tsvalue(&task->consts[task->aux]));
break;
case SETTABLE0:
luaV_settable(task->S->top - 3, 1);
break;
case SETTABLE:
luaV_settable(task->S->top - 3 - (*task->pc++), 2);
break;
case SETLISTW:
task->aux = next_word(task->pc);
task->aux *= LFIELDS_PER_FLUSH;
goto setlist;
case SETLIST:
task->aux = *(task->pc++) * LFIELDS_PER_FLUSH;
goto setlist;
case SETLIST0:
task->aux = 0;
setlist:
{
int32 n = *(task->pc++);
TObject *arr = task->S->top - n - 1;
for (; n; n--) {
ttype(task->S->top) = LUA_T_NUMBER;
nvalue(task->S->top) = (float)(n + task->aux);
*(luaH_set(avalue(arr), task->S->top)) = *(task->S->top - 1);
task->S->top--;
}
break;
}
case SETMAP0:
task->aux = 0;
goto setmap;
case SETMAP:
task->aux = *task->pc++;
setmap:
{
TObject *arr = task->S->top - (2 * task->aux) - 3;
do {
*(luaH_set(avalue(arr), task->S->top - 2)) = *(task->S->top - 1);
task->S->top -= 2;
} while (task->aux--);
break;
}
case POP:
task->aux = *task->pc++;
goto pop;
case POP0:
case POP1:
task->aux -= POP0;
pop:
task->S->top -= (task->aux + 1);
break;
case CREATEARRAYW:
task->aux = next_word(task->pc);
goto createarray;
case CREATEARRAY0:
case CREATEARRAY1:
task->aux -= CREATEARRAY0;
goto createarray;
case CREATEARRAY:
task->aux = *task->pc++;
createarray:
luaC_checkGC();
avalue(task->S->top) = luaH_new(task->aux);
ttype(task->S->top) = LUA_T_ARRAY;
task->S->top++;
break;
case EQOP:
case NEQOP:
{
int32 res = luaO_equalObj(task->S->top - 2, task->S->top - 1);
task->S->top--;
if (task->aux == NEQOP)
res = !res;
ttype(task->S->top - 1) = res ? LUA_T_NUMBER : LUA_T_NIL;
nvalue(task->S->top - 1) = 1;
break;
}
case LTOP:
comparison(LUA_T_NUMBER, LUA_T_NIL, LUA_T_NIL, IM_LT);
break;
case LEOP:
comparison(LUA_T_NUMBER, LUA_T_NUMBER, LUA_T_NIL, IM_LE);
break;
case GTOP:
comparison(LUA_T_NIL, LUA_T_NIL, LUA_T_NUMBER, IM_GT);
break;
case GEOP:
comparison(LUA_T_NIL, LUA_T_NUMBER, LUA_T_NUMBER, IM_GE);
break;
case ADDOP:
{
TObject *l = task->S->top - 2;
TObject *r = task->S->top - 1;
if (tonumber(r) || tonumber(l))
call_arith(IM_ADD);
else {
nvalue(l) += nvalue(r);
--task->S->top;
}
break;
}
case SUBOP:
{
TObject *l = task->S->top - 2;
TObject *r = task->S->top - 1;
if (tonumber(r) || tonumber(l))
call_arith(IM_SUB);
else {
nvalue(l) -= nvalue(r);
--task->S->top;
}
break;
}
case MULTOP:
{
TObject *l = task->S->top - 2;
TObject *r = task->S->top - 1;
if (tonumber(r) || tonumber(l))
call_arith(IM_MUL);
else {
nvalue(l) *= nvalue(r);
--task->S->top;
}
break;
}
case DIVOP:
{
TObject *l = task->S->top - 2;
TObject *r = task->S->top - 1;
if (tonumber(r) || tonumber(l))
call_arith(IM_DIV);
else {
nvalue(l) /= nvalue(r);
--task->S->top;
}
break;
}
case POWOP:
call_arith(IM_POW);
break;
case CONCOP:
{
TObject *l = task->S->top - 2;
TObject *r = task->S->top - 1;
if (tostring(l) || tostring(r))
call_binTM(IM_CONCAT, "unexpected type for concatenation");
else {
tsvalue(l) = strconc(svalue(l), svalue(r));
--task->S->top;
}
luaC_checkGC();
break;
}
case MINUSOP:
if (tonumber(task->S->top - 1)) {
ttype(task->S->top) = LUA_T_NIL;
task->S->top++;
call_arith(IM_UNM);
} else
nvalue(task->S->top - 1) = -nvalue(task->S->top - 1);
break;
case NOTOP:
ttype(task->S->top - 1) = (ttype(task->S->top - 1) == LUA_T_NIL) ? LUA_T_NUMBER : LUA_T_NIL;
nvalue(task->S->top - 1) = 1;
break;
case ONTJMPW:
task->aux = next_word(task->pc);
goto ontjmp;
case ONTJMP:
task->aux = *task->pc++;
ontjmp:
if (ttype(task->S->top - 1) != LUA_T_NIL)
task->pc += task->aux;
else
task->S->top--;
break;
case ONFJMPW:
task->aux = next_word(task->pc);
goto onfjmp;
case ONFJMP:
task->aux = *task->pc++;
onfjmp:
if (ttype(task->S->top - 1) == LUA_T_NIL)
task->pc += task->aux;
else
task->S->top--;
break;
case JMPW:
task->aux = next_word(task->pc);
goto jmp;
case JMP:
task->aux = *task->pc++;
jmp:
task->pc += task->aux;
break;
case IFFJMPW:
task->aux = next_word(task->pc);
goto iffjmp;
case IFFJMP:
task->aux = *task->pc++;
iffjmp:
if (ttype(--task->S->top) == LUA_T_NIL)
task->pc += task->aux;
break;
case IFTUPJMPW:
task->aux = next_word(task->pc);
goto iftupjmp;
case IFTUPJMP:
task->aux = *task->pc++;
iftupjmp:
if (ttype(--task->S->top) != LUA_T_NIL)
task->pc -= task->aux;
break;
case IFFUPJMPW:
task->aux = next_word(task->pc);
goto iffupjmp;
case IFFUPJMP:
task->aux = *task->pc++;
iffupjmp:
if (ttype(--task->S->top) == LUA_T_NIL)
task->pc -= task->aux;
break;
case CLOSURE:
task->aux = *task->pc++;
goto closure;
case CLOSURE0:
case CLOSURE1:
task->aux -= CLOSURE0;
closure:
luaV_closure(task->aux);
luaC_checkGC();
break;
case CALLFUNC:
task->aux = *task->pc++;
goto callfunc;
case CALLFUNC0:
case CALLFUNC1:
task->aux -= CALLFUNC0;
callfunc:
lua_state->state_counter2--;
return -((task->S->top - task->S->stack) - (*task->pc++));
case ENDCODE:
task->S->top = task->S->stack + task->base;
// goes through
case RETCODE:
lua_state->state_counter2--;
return (task->base + ((task->aux == 123) ? *task->pc : 0));
case SETLINEW:
task->aux = next_word(task->pc);
goto setline;
case SETLINE:
task->aux = *task->pc++;
setline:
if ((task->S->stack + task->base - 1)->ttype != LUA_T_LINE) {
// open space for LINE value */
luaD_openstack((task->S->top - task->S->stack) - task->base);
task->base++;
(task->S->stack + task->base - 1)->ttype = LUA_T_LINE;
}
(task->S->stack + task->base - 1)->value.i = task->aux;
if (lua_linehook)
luaD_lineHook(task->aux);
break;
#ifdef LUA_DEBUG
default:
LUA_INTERNALERROR("internal error - opcode doesn't match");
#endif
}
}
}