Function getobjname

third-party/lua-5.4.6/src/ldebug.c:575–611

** Extend 'basicgetobjname' to handle table accesses */

** Extend 'basicgetobjname' to handle table accesses
*/
static const char *getobjname (const Proto *p, int lastpc, int reg,
                               const char **name) {
  const char *kind = basicgetobjname(p, &lastpc, reg, name);
  if (kind != NULL)
    return kind;
  else if (lastpc != -1) {  /* could find instruction? */
    Instruction i = p->code[lastpc];
    OpCode op = GET_OPCODE(i);
    switch (op) {
      case OP_GETTABUP: {
        int k = GETARG_C(i);  /* key index */
        kname(p, k, name);
        return isEnv(p, lastpc, i, 1);
      }
      case OP_GETTABLE: {
        int k = GETARG_C(i);  /* key index */
        rname(p, lastpc, k, name);
        return isEnv(p, lastpc, i, 0);
      }
      case OP_GETI: {
        *name = "integer index";
        return "field";
      }
      case OP_GETFIELD: {
        int k = GETARG_C(i);  /* key index */
        kname(p, k, name);
        return isEnv(p, lastpc, i, 0);
      }
      case OP_SELF: {
        rkname(p, lastpc, i, name);
        return "method";
      }
      default: break;  /* go through to return NULL */
    }
  }
  return NULL;  /* could not find reasonable name */
}


/*