Example #1
0
LUA_API void lua_settable (lua_State *L, int idx) {
  StkId t;
  lua_lock(L);
  api_checknelems(L, 2);
  t = index2addr(L, idx);
  luaV_settable(L, t, L->top - 2, L->top - 1);
  L->top -= 2;  /* pop index and value */
  lua_unlock(L);
}
Example #2
0
LUA_API void lua_rawseti (lua_State *L, int idx, int n) {
  StkId o;
  lua_lock(L);
  api_checknelems(L, 1);
  o = luaA_index(L, idx);
  api_check(L, ttistable(o));
  setobj2t(luaH_setnum(L, hvalue(o), n), L->top-1);  /* write barrier */
  L->top--;
  lua_unlock(L);
}
Example #3
0
LUA_API void lua_seti (lua_State *L, int idx, lua_Integer n) {
  StkId t;
  lua_lock(L);
  api_checknelems(L, 1);
  t = index2addr(L, idx);
  setivalue(L->top++, n);
  luaV_settable(L, t, L->top - 1, L->top - 2);
  L->top -= 2;  /* pop value and key */
  lua_unlock(L);
}
Example #4
0
LUA_API void lua_setfield (lua_State *L, int idx, const char *k) {
  StkId t;
  lua_lock(L);
  api_checknelems(L, 1);
  t = index2addr(L, idx);
  setsvalue2s(L, L->top++, luaS_new(L, k));
  luaV_settable(L, t, L->top - 1, L->top - 2);
  L->top -= 2;  /* pop value and key */
  lua_unlock(L);
}
Example #5
0
LUA_API void lua_rawset (lua_State *L, int idx) {
  StkId t;
  lua_lock(L);
  api_checknelems(L, 2);
  t = luaA_index(L, idx);
  api_check(L, ttistable(t));
  setobj2t(luaH_set(L, hvalue(t), L->top-2), L->top-1);  /* write barrier */
  L->top -= 2;
  lua_unlock(L);
}
Example #6
0
LUA_API void lua_setglobal (lua_State *L, const char *var) {
  Table *reg = hvalue(&G(L)->l_registry);
  const TValue *gt;  /* global table */
  lua_lock(L);
  api_checknelems(L, 1);
  gt = luaH_getint(reg, LUA_RIDX_GLOBALS);
  setsvalue2s(L, L->top++, luaS_new(L, var));
  luaV_settable(L, gt, L->top - 1, L->top - 2);
  L->top -= 2;  /* pop value and key */
  lua_unlock(L);
}
Example #7
0
LUA_API void lua_rawseti (lua_State *L, int idx, int n) {
  StkId t;
  lua_lock(L);
  api_checknelems(L, 1);
  t = index2addr(L, idx);
  api_check(L, ttistable(t), "table expected");
  luaH_setint(L, hvalue(t), n, L->top - 1);
  luaC_barrierback(L, gcvalue(t), L->top-1);
  L->top--;
  lua_unlock(L);
}
Example #8
0
LUA_API void lua_setuservalue (lua_State *L, int idx) {
  StkId o;
  lua_lock(L);
  api_checknelems(L, 1);
  o = index2addr(L, idx);
  api_check(ttisfulluserdata(o), "full userdata expected");
  setuservalue(L, uvalue(o), L->top - 1);
  luaC_barrier(L, gcvalue(o), L->top - 1);
  L->top--;
  lua_unlock(L);
}
Example #9
0
/* weet:
 * 将一个栈顶的n个元素拷贝到另一个栈
 * */
LUA_API void lua_xmove (lua_State *from, lua_State *to, int n) {
  int i;
  lua_lock(to);
  api_checknelems(from, n);
  from->top -= n;
  for (i = 0; i < n; i++) {
    setobj2s(to->top, from->top + i);
    api_incr_top(to);
  }
  lua_unlock(to);
}
Example #10
0
LUA_API void  lua_arith (lua_State *L, int op) {
  StkId o1;  /* 1st operand */
  StkId o2;  /* 2nd operand */
  lua_lock(L);
  if (op != LUA_OPUNM) /* all other operations expect two operands */
    api_checknelems(L, 2);
  else {  /* for unary minus, add fake 2nd operand */
    api_checknelems(L, 1);
    setobjs2s(L, L->top, L->top - 1);
    L->top++;
  }
  o1 = L->top - 2;
  o2 = L->top - 1;
  if (ttisnumber(o1) && ttisnumber(o2)) {
    changenvalue(o1, luaO_arith(op, nvalue(o1), nvalue(o2)));
  }
  else
    luaV_arith(L, o1, o1, o2, cast(TMS, op - LUA_OPADD + TM_ADD));
  L->top--;
  lua_unlock(L);
}
Example #11
0
LUA_API void lua_rawset (lua_State *L, int idx) {
  StkId t;
  lua_lock(L);
  api_checknelems(L, 2);
  t = index2addr(L, idx);
  api_check(L, ttistable(t), "table expected");
  setobj2t(L, luaH_set(L, hvalue(t), L->top-2), L->top-1);
  invalidateTMcache(hvalue(t));
  luaC_barrierback(L, gcvalue(t), L->top-1);
  L->top -= 2;
  lua_unlock(L);
}
Example #12
0
LUA_API void lua_setdefaultmetatable(lua_State *L, int type)
{
  StkId t;
  lua_lock(L);
  api_checknelems(L, 1);
  t = L->top - 1;
  if (ttype(t) == LUA_TTABLE) {  /* `t' is a table? */
	  sethvalue(defaultmetatypes(L, type), hvalue(t));
  }
  L->top -= 1;
  lua_unlock(L);
}
Example #13
0
LUA_API void lua_replace (lua_State *L, int idx)
{
    lua_lock(L);

    /* explicit test for incompatible code */
    if ( idx == LUA_ENVIRONINDEX && !hascallingenv( L ) )
    {
        luaG_runerror(L, "no calling environment");
    }

    api_checknelems(L, 1);
    {
        rtStack_t& rtStack = L->rtStack;

        rtStack.Lock( L );

        StkId stackTop = L->GetCurrentStackFrame().TopMutable( L, L->rtStack );

        if ( idx == LUA_ENVIRONINDEX )
        {
            Closure *func = curr_func(L);
            const TValue *val = stackTop;

            func->env = gcvalue(val);
            luaC_barrier(L, func, val);
        }
        else if ( idx == LUA_STORAGEINDEX )
        {
            const TValue *val = stackTop;

            setgcvalue( L, &L->storage, gcvalue( val ) );
            luaC_barrier( L, L, val );
        }
        else
        {
            ValueAddress o = index2adr(L, idx);
            api_checkvalidindex(L, o);

            setobj( L, o, stackTop );

            if ( idx < LUA_GLOBALSINDEX )  /* function upvalue? */
            {
                luaC_barrier(L, curr_func(L), stackTop);
            }
        }

        popstack( L, 1 );

        rtStack.Unlock( L );
    }
    lua_unlock(L);
}
Example #14
0
LUA_API void lua_xmove (lua_State *from, lua_State *to, int n) {
  int i;
  if (from == to) return;
  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, "not enough elements to move");
  from->top -= n;
  for (i = 0; i < n; i++) {
    setobj2s(to, to->top++, from->top + i);
  }
  lua_unlock(to);
}
Example #15
0
LUA_API void lua_rawsetp (lua_State *L, int idx, const void *p) {
  StkId t;
  TValue k;
  lua_lock(L);
  api_checknelems(L, 1);
  t = index2addr(L, idx);
  api_check(L, ttistable(t), "table expected");
  setpvalue(&k, cast(void *, p));
  setobj2t(L, luaH_set(L, hvalue(t), &k), L->top - 1);
  luaC_barrierback(L, gcvalue(t), L->top - 1);
  L->top--;
  lua_unlock(L);
}
Example #16
0
LUA_API void lua_rawseti (lua_State *L, int idx, lua_Integer n) {
  StkId o;
  Table *t;
  lua_lock(L);
  api_checknelems(L, 1);
  o = index2addr(L, idx);
  api_check(ttistable(o), "table expected");
  t = hvalue(o);
  luaH_setint(L, t, n, L->top - 1);
  luaC_barrierback(L, t, L->top-1);
  L->top--;
  lua_unlock(L);
}
Example #17
0
LUA_API void lua_settable (lua_State *L, int idx) {
  StkId t;
  lua_lock(L);
  api_checknelems(L, 2);
  t = luaA_index(L, idx);
  luaV_settable(L, t, L->top - 2, L->top - 1);
#if LUA_REFCOUNT
  setnilvalue(--L->top);
  setnilvalue(--L->top);
#else !LUA_REFCOUNT
  L->top -= 2;  /* pop index and value */
#endif LUA_REFCOUNT
  lua_unlock(L);
}
Example #18
0
LUA_API void lua_rawseti (lua_State *L, int idx, int n) {
  StkId o;
  lua_lock(L);
  api_checknelems(L, 1);
  o = luaA_index(L, idx);
  api_check(L, ttistable(o));
  setobj2t(luaH_setnum(L, hvalue(o), n), L->top-1);  /* write barrier */
#if LUA_REFCOUNT
  setnilvalue(--L->top);
#else !LUA_REFCOUNT
  L->top--;
#endif LUA_REFCOUNT
  lua_unlock(L);
}
Example #19
0
LUA_API void lua_xmove (lua_State *from, lua_State *to, int n) {
  int i;
  if (from == to) return;
  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;
  for (i = 0; i < n; i++) {
    setobj2s(to, to->top, from->top + i);
    to->top++;  /* stack already checked by previous 'api_check' */
  }
  lua_unlock(to);
}
Example #20
0
/*
** t[k] = value at the top of the stack (where 'k' is a string)
*/
static void auxsetstr (lua_State *L, const TValue *t, const char *k) {
  const TValue *slot;
  TString *str = luaS_new(L, k);
  api_checknelems(L, 1);
  if (luaV_fastset(L, t, str, slot, luaH_getstr, L->top - 1))
    L->top--;  /* pop value */
  else {
    setsvalue2s(L, L->top, str);  /* push 'str' (to make it a TValue) */
    api_incr_top(L);
    luaV_finishset(L, t, L->top - 1, L->top - 2, slot);
    L->top -= 2;  /* pop value and key */
  }
  lua_unlock(L);  /* lock done by caller */
}
Example #21
0
LUA_API void lua_pushcclosure (lua_State *L, lua_CFunction fn, int n) {
  Closure *cl;
  lua_lock(L);
  luaC_checkGC(L);
  api_checknelems(L, n);
  cl = luaF_newCclosure(L, n);
  cl->c.f = fn;
  L->top -= n;
  while (n--)
    setobj2n(&cl->c.upvalue[n], L->top+n);
  setclvalue(L->top, cl);
  api_incr_top(L);
  lua_unlock(L);
}
Example #22
0
LUA_API int lua_setfenv (lua_State *L, int idx) {
  StkId o;
  int res = 0;
  lua_lock(L);
  api_checknelems(L, 1);
  o = luaA_index(L, idx);
  L->top--;
  api_check(L, ttistable(L->top));
  if (isLfunction(o)) {
    res = 1;
    clvalue(o)->l.g = *(L->top);
  }
  lua_unlock(L);
  return res;
}
Example #23
0
LUA_API void lua_rawset (lua_State *L, int idx) {
  StkId t;
  lua_lock(L);
  api_checknelems(L, 2);
  t = luaA_index(L, idx);
  api_check(L, ttistable(t));
  setobj2t(luaH_set(L, hvalue(t), L->top-2), L->top-1);  /* write barrier */
#if LUA_REFCOUNT
  setnilvalue(--L->top);
  setnilvalue(--L->top);
#else !LUA_REFCOUNT
  L->top -= 2;
#endif LUA_REFCOUNT

  lua_unlock(L);
}
Example #24
0
LUA_API void lua_seti (lua_State *L, int idx, lua_Integer n) {
  StkId t;
  const TValue *slot;
  lua_lock(L);
  api_checknelems(L, 1);
  t = index2addr(L, idx);
  if (luaV_fastset(L, t, n, slot, luaH_getint, L->top - 1))
    L->top--;  /* pop value */
  else {
    setivalue(L->top, n);
    api_incr_top(L);
    luaV_finishset(L, t, L->top - 1, L->top - 2, slot);
    L->top -= 2;  /* pop value and key */
  }
  lua_unlock(L);
}
Example #25
0
LUA_API void lua_setuservalue (lua_State *L, int idx) {
	StkId o;
	lua_lock(L);
	api_checknelems(L, 1);
	o = index2addr(L, idx);
	api_check(L, ttisuserdata(o), "userdata expected");
	if (ttisnil(L->top - 1))
	uvalue(o)->env = NULL;
	else {
	api_check(L, ttistable(L->top - 1), "table expected");
	uvalue(o)->env = hvalue(L->top - 1);
	luaC_objbarrier(L, gcvalue(o), hvalue(L->top - 1));
	}
	L->top--;
	lua_unlock(L);
}
Example #26
0
LUA_API void lua_callk (lua_State *L, int nargs, int nresults, int ctx,
                        lua_CFunction k) {
  StkId func;
  lua_lock(L);
  api_check(L, k == NULL || !isLua(L->ci),
    "cannot use continuations inside hooks");
  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);
  if (k != NULL && L->nny == 0) {  /* need to prepare continuation? */
    L->ci->u.c.k = k;  /* save continuation */
    L->ci->u.c.ctx = ctx;  /* save context */
    luaD_call(L, func, nresults, 1);  /* do the call */
  }
  else  /* no continuation or no yieldable */
    luaD_call(L, func, nresults, 0);  /* just do the call */
  adjustresults(L, nresults);
  lua_unlock(L);
}
Example #27
0
LUA_API void lua_pushcclosure (lua_State *L, lua_CFunction fn, int n) {
  lua_lock(L);
  if (n == 0) {
    setfvalue(L->top, fn);
  }
  else {
    Closure *cl;
    api_checknelems(L, n);
    api_check(L, n <= MAXUPVAL, "upvalue index too large");
    luaC_checkGC(L);
    cl = luaF_newCclosure(L, n);
    cl->c.f = fn;
    L->top -= n;
    while (n--)
      setobj2n(L, &cl->c.upvalue[n], L->top + n);
    setclCvalue(L, L->top, cl);
  }
  api_incr_top(L);
  lua_unlock(L);
}
Example #28
0
LUA_API int lua_setmetatable (lua_State *L, int objindex) {
  TValue *obj;
  Table *mt;
  lua_lock(L);
  api_checknelems(L, 1);
  obj = index2addr(L, objindex);
  api_checkvalidindex(L, obj);
  if (ttisnil(L->top - 1))
    mt = NULL;
  else {
    api_check(L, ttistable(L->top - 1), "table expected");
    mt = hvalue(L->top - 1);
  }
  switch (ttypenv(obj)) {
    case LUA_TTABLE: {
      hvalue(obj)->metatable = mt;
      if (mt)
        luaC_objbarrierback(L, gcvalue(obj), mt);
        luaC_checkfinalizer(L, gcvalue(obj), mt);
      break;
    }
    case LUA_TUSERDATA: {
      uvalue(obj)->metatable = mt;
      if (mt) {
        luaC_objbarrier(L, rawuvalue(obj), mt);
        luaC_checkfinalizer(L, gcvalue(obj), mt);
      }
      break;
    }
    default: {
      G(L)->mt[ttypenv(obj)] = mt;
      break;
    }
  }
  L->top--;
  lua_unlock(L);
  return 1;
}
Example #29
0
LUA_API int lua_setmetatable (lua_State *L, int objindex) {
  TObject *obj, *mt;
  int res = 1;
  lua_lock(L);
  api_checknelems(L, 1);
  obj = luaA_index(L, objindex);
  mt = (!ttisnil(L->top - 1)) ? L->top - 1 : defaultmeta(L);
  api_check(L, ttistable(mt));
  switch (ttype(obj)) {
    case LUA_TTABLE: {
#if LUA_REFCOUNT
      __AddRefDirect(hvalue(mt));
      __ReleaseDirect(L, hvalue(obj)->metatable);
#endif LUA_REFCOUNT
	  hvalue(obj)->metatable = hvalue(mt);  /* write barrier */
      break;
    }
    case LUA_TUSERDATA: {
#if LUA_REFCOUNT
      __AddRefDirect(hvalue(mt));
	  __ReleaseDirect(L, &uvalue(obj)->uv.metatable);
#endif LUA_REFCOUNT
      uvalue(obj)->uv.metatable = hvalue(mt);  /* write barrier */
      break;
    }
    default: {
      res = 0;  /* cannot set */
      break;
    }
  }
#if LUA_REFCOUNT
  setnilvalue(--L->top);
#else !LUA_REFCOUNT
  L->top--;
#endif LUA_REFCOUNT
  lua_unlock(L);
  return res;
}