Function luaX_newstring

depends/lua/src/llex.c:127–144

** creates a new string and anchors it in scanner's table so that ** it will not be collected until the end of the compilation ** (by that time it should be anchored somewhere) */

** (by that time it should be anchored somewhere)
*/
TString *luaX_newstring (LexState *ls, const char *str, size_t l) {
  lua_State *L = ls->L;
  TValue *o;  /* entry for 'str' */
  TString *ts = luaS_newlstr(L, str, l);  /* create new string */
  setsvalue2s(L, L->top++, ts);  /* temporarily anchor it in stack */
  o = luaH_set(L, ls->h, L->top - 1);
  if (ttisnil(o)) {  /* not in use yet? */
    /* boolean value does not need GC barrier;
       table has no metatable, so it does not need to invalidate cache */
    setbvalue(o, 1);  /* t[string] = true */
    luaC_checkGC(L);
  }
  else {  /* string already present */
    ts = tsvalue(keyfromval(o));  /* re-use value previously stored */
  }
  L->top--;  /* remove string from stack */
  return ts;
}


/*