Ejemplo n.º 1
0
static int singlevaraux(FuncState* fs, TString* n, expdesc* var, int base)
{
	if (fs == NULL)	   /* no more levels? */
	{
		init_exp(var, VGLOBAL, NO_REG);	 /* default is global variable */
		return VGLOBAL;
	}
	else
	{
		int v = searchvar(fs, n);  /* look up at current level */
		if (v >= 0)
		{
			init_exp(var, VLOCAL, v);
			if (!base)
				markupval(fs, v);  /* local will be used as an upval */
			return VLOCAL;
		}
		else	/* not found at current level; try upper one */
		{
			if (singlevaraux(fs->prev, n, var, 0) == VGLOBAL)
				return VGLOBAL;
			var->u.s.info = indexupvalue(fs, n, var);	 /* else was LOCAL or UPVAL */
			var->k = VUPVAL;	/* upvalue in this level */
			return VUPVAL;
		}
	}
}
Ejemplo n.º 2
0
static void singlevaraux (FuncState *fs, TString *n, expdesc *var, int base) {
  if (fs == NULL)  /* no more levels? */
    init_exp(var, VGLOBAL, NO_REG);  /* default is global variable */
  else {
    int v = searchvar(fs, n);  /* look up at current level */
    if (v >= 0) {
      init_exp(var, VLOCAL, v);
      if (!base)
        markupval(fs, v);  /* local will be used as an upval */
    }
    else {  /* not found at current level; try upper one */
      singlevaraux(fs->prev, n, var, 0);
      if (var->k == VGLOBAL) {
        if (base)
          var->info = luaK_stringK(fs, n);  /* info points to global name */
      }
      else {  /* LOCAL or UPVAL */
        var->info = indexupvalue(fs, n, var);
        var->k = VUPVAL;  /* upvalue in this level */
      }
    }
  }
}