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kakoune/rc/tools/clang.kak

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hook -once global BufSetOption filetype=(c|cpp) %{
require-module clang
}
provide-module clang %[
declare-option -docstring "options to pass to the `clang` shell command" \
str clang_options
declare-option -hidden str clang_tmp_dir
declare-option -hidden completions clang_completions
declare-option -hidden line-specs clang_flags
declare-option -hidden line-specs clang_errors
define-command -params ..1 \
-docstring %{Parse the contents of the current buffer
The syntaxic errors detected during parsing are shown when auto-diagnostics are enabled} \
clang-parse %{
evaluate-commands %sh{
dir=$(mktemp -d "${TMPDIR:-/tmp}"/kak-clang.XXXXXXXX)
mkfifo ${dir}/fifo
printf %s\\n "set-option buffer clang_tmp_dir ${dir}"
printf %s\\n "evaluate-commands -no-hooks write -sync ${dir}/buf"
}
# end the previous %sh{} so that its output gets interpreted by kakoune
# before launching the following as a background task.
evaluate-commands %sh{
dir=${kak_opt_clang_tmp_dir}
printf %s\\n "evaluate-commands -draft %{
edit! -fifo ${dir}/fifo -debug *clang-output*
set-option buffer filetype make
set-option buffer make_current_error_line 0
hook -once -always buffer BufCloseFifo .* %{ nop %sh{ rm -r ${dir} } }
}"
# this runs in a detached shell, asynchronously, so that kakoune does
# not hang while clang is running. As completions references a cursor
# position and a buffer timestamp, only valid completions should be
# displayed.
(
case ${kak_opt_filetype} in
c) ft=c ;;
cpp) ft=c++ ;;
obj-c) ft=objective-c ;;
*) ft=c++ ;;
esac
if [ "$1" = "-complete" ]; then
pos=-:${kak_cursor_line}:${kak_cursor_column}
header="${kak_cursor_line}.${kak_cursor_column}@${kak_timestamp}"
compl=$(clang++ -x ${ft} -fsyntax-only ${kak_opt_clang_options} \
-Xclang -code-completion-brief-comments -Xclang -code-completion-at=${pos} - < ${dir}/buf 2> ${dir}/stderr |
awk -F ': ' '
/^COMPLETION:/ && ! /\(Hidden\)/ {
id=$2
gsub(/ +$/, "", id)
gsub(/~/, "~~", id)
gsub(/\|/, "\\|", id)
gsub(/[[{<]#|#[}>]/, "", $3)
gsub(/#]/, " ", $3)
gsub(/:: /, "::", $3)
gsub(/ +$/, "", $3)
desc=$4 ? $3 "\n" $4 : $3
gsub(/~/, "~~", desc)
gsub(/!/, "!!", desc)
gsub(/\|/, "\\|", desc)
if (id in docstrings)
docstrings[id]=docstrings[id] "\n" desc
else
docstrings[id]=desc
}
END {
for (id in docstrings) {
menu=id
gsub(/(^|[^[:alnum:]_])(operator|new|delete)($|[^{}_[:alnum:]]+)/, "{keyword}&{}", menu)
gsub(/(^|[[:space:]])(int|size_t|bool|char|unsigned|signed|long)($|[[:space:]])/, "{type}&{}", menu)
gsub(/[^{}_[:alnum:]]+/, "{operator}&{}", menu)
printf "%%~%s|info -style menu %!%s!|%s~ ", id, docstrings[id], menu
}
}')
printf %s\\n "evaluate-commands -client ${kak_client} echo 'clang completion done'
set-option 'buffer=${kak_buffile}' clang_completions ${header} ${compl}" | kak -p ${kak_session}
else
clang++ -x ${ft} -fsyntax-only ${kak_opt_clang_options} - < ${dir}/buf 2> ${dir}/stderr
printf %s\\n "evaluate-commands -client ${kak_client} echo 'clang parsing done'" | kak -p ${kak_session}
fi
flags=$(cat ${dir}/stderr | sed -rne "
/^<stdin>:[0-9]+:([0-9]+:)? (fatal )?error/ { s/^<stdin>:([0-9]+):.*/'\1|{red}█'/; p }
/^<stdin>:[0-9]+:([0-9]+:)? warning/ { s/^<stdin>:([0-9]+):.*/'\1|{yellow}█'/; p }
" | paste -s -d ' ' -)
errors=$(cat ${dir}/stderr | sed -rne "
/^<stdin>:[0-9]+:([0-9]+:)? ((fatal )?error|warning)/ {
s/'/''/g; s/^<stdin>:([0-9]+):([0-9]+:)? (.*)/'\1|\3'/; p
}" | sort -n | paste -s -d ' ' -)
sed -e "s|<stdin>|${kak_bufname}|g" < ${dir}/stderr > ${dir}/fifo
printf %s\\n "set-option 'buffer=${kak_buffile}' clang_flags ${kak_timestamp} ${flags}
set-option 'buffer=${kak_buffile}' clang_errors ${kak_timestamp} ${errors}" | kak -p ${kak_session}
) > /dev/null 2>&1 < /dev/null &
}
}
define-command clang-complete -docstring "Complete the current selection" %{ clang-parse -complete }
define-command -hidden clang-show-completion-info %[ try %[
evaluate-commands -draft %[
execute-keys <space>{( <a-k> ^\( <ret> b <a-k> \A\w+\z <ret>
evaluate-commands %sh[
desc=$(printf %s\\n "${kak_opt_clang_completions}" | sed -e "{ s/\([^\\]\):/\1\n/g }" | sed -ne "/^${kak_selection}|/ { s/^[^|]\+|//; s/|.*$//; s/\\\:/:/g; p }")
if [ -n "$desc" ]; then
printf %s\\n "evaluate-commands -client $kak_client %{info -anchor ${kak_cursor_line}.${kak_cursor_column} -style above %{${desc}}}"
fi
] ]
] ]
define-command clang-enable-autocomplete -docstring "Enable automatic clang completion" %{
set-option window completers "option=clang_completions" %opt{completers}
hook window -group clang-autocomplete InsertIdle .* %{
try %{
execute-keys -draft <a-h><a-k>(\.|->|::).\z<ret>
echo 'completing...'
clang-complete
}
clang-show-completion-info
}
alias window complete clang-complete
}
define-command clang-disable-autocomplete -docstring "Disable automatic clang completion" %{
evaluate-commands %sh{ printf "set-option window completers %s\n" $(printf %s "${kak_opt_completers}" | sed -e "s/'option=clang_completions'//g") }
remove-hooks window clang-autocomplete
unalias window complete clang-complete
}
define-command -hidden clang-show-error-info %{
update-option buffer clang_errors # Ensure we are up to date with buffer changes
evaluate-commands %sh{
eval "set -- ${kak_opt_clang_errors}"
shift # skip timestamp
desc=$(for error in "$@"; do
if [ "${error%%|*}" = "$kak_cursor_line" ]; then
printf '%s\n' "${error##*|}"
fi
done)
if [ -n "$desc" ]; then
desc=$(printf %s "${desc}" | sed "s/'/''/g")
printf "info -anchor %d.%d '%s'\n" "${kak_cursor_line}" "${kak_cursor_column}" "${desc}"
fi
} }
define-command clang-enable-diagnostics -docstring %{Activate automatic error reporting and diagnostics
Information about the analysis are showned after the buffer has been parsed with the clang-parse function} \
%{
add-highlighter window/clang_flags flag-lines default clang_flags
hook window -group clang-diagnostics NormalIdle .* %{ clang-show-error-info }
hook window -group clang-diagnostics WinSetOption ^clang_errors=.* %{ info; clang-show-error-info }
}
define-command clang-disable-diagnostics -docstring "Disable automatic error reporting and diagnostics" %{
remove-highlighter window/clang_flags
remove-hooks window clang-diagnostics
}
define-command clang-diagnostics-next -docstring "Jump to the next line that contains an error" %{
update-option buffer clang_errors # Ensure we are up to date with buffer changes
evaluate-commands %sh{
eval "set -- ${kak_opt_clang_errors}"
shift # skip timestamp
for error in "$@"; do
candidate=${error%%|*}
first_line=${first_line-$candidate}
if [ "$candidate" -gt $kak_cursor_line ]; then
line=$candidate
break
fi
done
line=${line-$first_line}
if [ -n "$line" ]; then
printf %s\\n "execute-keys ${line} g"
else
echo "echo -markup '{Error}no next clang diagnostic'"
fi
} }
]