#autoload

# This should be used to complete parameter names if you need some of the
# extra options of compadd. It completes only non-local parameters. All
# arguments are given to compadd.

local expl

_description expl parameter

if zmodload -e parameter; then
  setopt localoptions extendedglob
  compadd "$expl[@]" "$@" - ${(k)parameters[(R)^*local*]}
else
  compadd "$expl[@]" "$@" - ${${${(f)"$(typeset +)"}:#*local *}##* }
fi