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zsh-syntax-highlighting
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redo _zsh_highlight__function_callable_p

This commit is contained in:
Daniel Shahaf 2016-09-16 04:34:59 +00:00 committed by Matthew Martin
parent 38477f2a3d
commit d4ab7e51d2
1 changed files with 34 additions and 17 deletions
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51
zsh-syntax-highlighting.zsh
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@ -49,6 +49,25 @@ if true; then
fi fi
fi fi
# This function takes a single argument F and returns True iff F is an autoload stub.
_zsh_highlight__function_is_autoload_stub_p() {
if (( ${+functions} )); then
## zsh/parameter is available
#(( ${+functions[$1]} )) &&
[[ "$functions[$1]" == *"builtin autoload -X" ]]
else
## zsh/parameter isn't available
#[[ $(type -wa -- "$1") == *'function'* ]] &&
[[ "${${(@f)"$(which -- "$1")"}[2]}" == $'\t'$histchars[3]' undefined' ]]
fi
# Do nothing here: return the exit code of the if.
}
# Return True iff the argument denotes a function name.
_zsh_highlight__is_function_p() {
(( ${+functions[$1]} )) || [[ $(type -wa -- "$1") == *'function'* ]]
}
# This function takes a single argument F and returns True iff F denotes the # This function takes a single argument F and returns True iff F denotes the
# name of a callable function. A function is callable if it is fully defined # name of a callable function. A function is callable if it is fully defined
# or if it is marked for autoloading and autoloading it at the first call to it # or if it is marked for autoloading and autoloading it at the first call to it
@ -57,23 +76,21 @@ fi
# #
# See users/21671 http://www.zsh.org/cgi-bin/mla/redirect?USERNUMBER=21671 # See users/21671 http://www.zsh.org/cgi-bin/mla/redirect?USERNUMBER=21671
_zsh_highlight__function_callable_p() { _zsh_highlight__function_callable_p() {
{ # Trenary condition: if the zle/parameter module is available, ... if _zsh_highlight__is_function_p "$1" &&
if (( ${+functions} )); then ! _zsh_highlight__function_is_autoload_stub_p "$1"
# ... then use it to make the decision, ... then
if (( ${+functions[$1]} )); then # Already fully loaded.
[[ "$functions[$1]" != *"builtin autoload -X" ]] \ return 0 # true
|| else
( unfunction -- "$1" && autoload -U +X -- "$1" 2>/dev/null ) # "$1" is either an autoload stub, or not a function at all.
else #
( autoload -U +X -- "$1" 2>/dev/null ) # Use a subshell to avoid affecting the calling shell.
fi #
else # We expect 'autoload +X' to return non-zero if it fails to fully load
# ... otherwise, use a fallback approach. # the function.
autoload -U +X -- "$1" 2>/dev/null ( autoload -U +X -- "$1" 2>/dev/null )
[[ "${${(@f)"$(which -- "$1")"}[2]}" != $'\t'$histchars[3]' undefined' ]] return $?
fi fi
}
# Do nothing here! We return the exit code of the if.
} }
integer zsh_highlight_use_redrawhook integer zsh_highlight_use_redrawhook