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#compdef autoload declare export functions integer float local readonly typeset

local expl state line func i use curcontext="$curcontext"
local fopts="-f -k -z"
local popts="-A -E -F -L -R -T -Z -a -g -h -H -i -l -r -x"
local -A allargs opt_args
local -a args

allargs=(
  A "($fopts -E -F -L -R -T -U -Z -a -i -m)-A[specify that arguments refer to associative arrays]"
  E "($fopts -A -F -L -R -T -U -Z -a -i -m)-E[floating point, use engineering notation on output]"
  F "($fopts -A -E -L -R -T -U -Z -a -i -m)-F[floating point, use fixed point decimal on output]"
  L "($fopts -A -E -F -i)-L+[left justify and remove leading blanks from value]:width"
  R "($fopts -A -E -F -i)-R+[right justify and fill with leading blanks]:width"
  T "($fopts -A -E -F -a -g -h -i -l -m -t)-T[tie scalar to array]"
  U '(-A -E -F -i)-U[keep array values unique and suppress alias expansion for functions]'
  Uf '-U[suppress alias expansion for functions]'
  Up '(-E -F -i)-+U[keep array values unique]'
  X '+X[immediately autoload function]'
  Z "($fopts -A -E -F -i)-Z+[right justify and fill with leading zeros]:width"
  a "($fopts -A -E -F -T -i)-a[specify that arguments refer to arrays]"
  f "($popts)-f[specify that arguments refer to functions]"
  g "($fopts -T)-+g[do not restrict parameter to local scope]"
  h "($fopts -T)-+h[hide specialness of parameter]"
  H "($fopts -T)-+H[hide value of parameter in listings]"
  i "($fopts -A -E -F -T)-+i[represent internally as an integer]"
  k "($popts -w -z)-+k[mark function for ksh-style autoloading]"
  l "($popts -T)-l[convert the value to lowercase]"
  m '(-A -E -F -T -i)-m[treat arguments as patterns]'
  p '-p[output parameters in form of calls to typeset]'
  r '(-f)-+r[mark parameters as readonly]'
  t '(-T)-+t[tag parameters and turn on execution tracing for functions]'
  tf '(-T)-+t[turn on execution tracing for functions]'
  tp '(-T)-+t[tag parameters]'
  u '-u[convert the value to uppercase or mark function for autoloading]'
  uf '-u[mark function for autoloadling]'
  up '-u[convert the value to uppercase]'
  w '(-k -z)-w[specify that arguments refer to files compiled with zcompile]'
  x "($fopts)-+x[export parameter]"
  z "($popts -k -w)-+z[mark function for zsh-style autoloading]"
)

use="AEFHLRTUZafghiklmprtuxz"

case ${service} in
  autoload)
    use="UXktwz"
    func=f
  ;;
  float) use="EFHghlprtux";;
  functions)
    use="Ukmtuz"
    func=f
  ;;
  integer)
    use="Hghilprtux"
    allargs[i]='-i[specify arithmetic base for output]' \
  ;;
  readonly) use="${use/r/}" ;;
  local) use="${use/[fkz]/}" ;&
  export) use="${${use//[gkz]/}/x/}" ;;
esac

[[ -z "${words[(r)-*[aA]*]}" ]] || func=p
[[ -z "${words[(r)-*f*]}" ]] || func=f
   
for ((i=1;i<=$#use;++i)); do
  args+=( ${allargs[${use[$i]}${${(s::)use[$i]}[(r)[Uut]]:+$func}]} )
done

_arguments -C -s -A "-*" -S "${args[@]}" '*::vars:= ->vars_eq'

if [[ "$state" = vars_eq ]]; then
  if [[ $func = f ]]; then
    if (( $+opt_args[-w] ));then
      _wanted files expl 'zwc file' _files -g '*.zwc(-.)'
    elif [[ $service = autoload || -n $opt_args[(i)-[uU]] ]]; then
      _wanted functions expl 'shell function' compadd - ${^fpath}/*(:t)
    else
      _functions
    fi
  elif [[ "$PREFIX" = *\=* ]]; then
    compstate[parameter]="${PREFIX%%\=*}"
    compset -P 1 '*='
    _value
  elif (( $+opt_args[-a] || $+opt_args[-A] )); then
    _parameters -q
  elif (( $+opt_args[-T] )); then
    _arguments \
      ':scalar parameter:_parameters -g "*scalar*" -q -S "="' \
      ':array parameter:_parameters -g "*array*"' \
      ':separator character'
  else
    _parameters -q -S '='
  fi
fi