declare -a _swift_opts # lazy init

_swift_get_current_opt()
{
    local opt
    for opt in ${_swift_opts[@]} ; do
        if [[ $(echo ${COMP_WORDS[*]} |grep -c " $opt\$") > 0 ]] || [[ $(echo ${COMP_WORDS[*]} |grep -c " $opt ") > 0 ]] ; then
            echo $opt
            return 0
        fi
    done
    echo ""
    return 0
}

_swift()
{
    local opt cur prev sflags
    COMPREPLY=()
    cur="${COMP_WORDS[COMP_CWORD]}"
    prev="${COMP_WORDS[COMP_CWORD-1]}"

    if [ "x$_swift_opts" == "x" ] ; then
                _swift_opts=(`swift bash_completion "$sbc" | sed -e "s/-[-A-Za-z0-9_]*//g" -e "s/  */ /g"`)
    fi

    opt="$(_swift_get_current_opt)"
    COMPREPLY=($(compgen -W "$(swift bash_completion $opt)" -- ${cur}))

    return 0
}
complete -F _swift swift