Function URL_Loc_Set

plugins/experimental/txn_box/plugin/src/Machinery.cc:353–382

Set the location in a URL, accepting either a string or a tuple of .

/// Set the location in a URL, accepting either a string or a tuple of <host, port>.
void
URL_Loc_Set(Context &ctx, Expr &expr, ts::URL &url)
{
  auto     value = ctx.extract(expr);
  TextView host_token;
  int      port = -1; // if still -1 after parsing, the parsing failed.
  if (auto loc = std::get_if<IndexFor(STRING)>(&value); nullptr != loc) {
    // split the string to get the pieces.
    Loc_String_Parse(*loc, host_token, port);
  } else if (auto t = std::get_if<IndexFor(TUPLE)>(&value); nullptr != t) {
    // Must be host name, then port.
    if (t->size() > 0) {
      if (auto &f0 = (*t)[0]; f0.index() == IndexFor(STRING)) {
        host_token = std::get<IndexFor(STRING)>(f0);
        if (t->size() > 1) {
          auto &f1 = (*t)[1];
          if (is_empty(f1)) {
            port = 0; // clear port.
          } else {
            port = f1.as_integer(-1); // try as integer, fail if not convertible.
          }
        }
      }
    }
  }
  if (0 <= port && port < std::numeric_limits<in_port_t>::max()) {
    url.host_set(host_token);
    url.port_set(port); // if @a port is 0 then it will be removed from the URL.
  }
}

/// Set the location in the Host field and URL (if needed).
void