phemmer

function _run_deferred() {
  local _depth="$BASHPID.${#FUNCNAME[@]}"
  [[ "$_depth" != "$_deferred_depth" ]] && return
  local opt=$-
  set +e
  for (( i=${#_deferred[@]} - 1; i >= 0; i-- )); do
    eval "${_deferred[i]}"
  done
  [[ "$opt" == *e* ]] && set -e
}