kakoune/rc/extra/racer.kak

149 lines
8.3 KiB
Plaintext

declare-option -hidden str racer_tmp_dir
declare-option -hidden completions racer_completions
define-command racer-complete -docstring "Complete the current selection with racer" %{
%sh{
dir=$(mktemp -d "${TMPDIR:-/tmp}"/kak-racer.XXXXXXXX)
printf %s\\n "set-option buffer racer_tmp_dir ${dir}"
printf %s\\n "evaluate-commands -no-hooks %{ write ${dir}/buf }"
}
%sh{
dir=${kak_opt_racer_tmp_dir}
(
cursor="${kak_cursor_line} $((${kak_cursor_column} - 1))"
racer_data=$(racer --interface tab-text complete-with-snippet ${cursor} ${kak_buffile} ${dir}/buf)
compl=$(printf %s\\n "${racer_data}" | awk '
BEGIN { FS = "\t"; ORS = ":" }
/^PREFIX/ {
column = ENVIRON["kak_cursor_column"] + $2 - $3
print ENVIRON["kak_cursor_line"] "." column "\\@" ENVIRON["kak_timestamp"]
}
/^MATCH/ {
word = $2
type = $7
desc = substr($9, 2, length($9) - 2)
gsub(/\|/, "\\|", desc)
gsub(/\\n/, "\n", desc)
menu = $8
sub(/^pub /, "", menu)
gsub(/\|/, "\\|", menu)
if (type == "Function") {
sub(word, "{default+e}" word "{default+d}", menu)
gsub(/^fn /, " fn ", menu) # The extra spaces are there to vertically align
# the type of element on the menu to make it easy
# to read
menu = "{default+d}" menu
} else if (type == "Enum") {
menu = substr(menu, 0, length(menu) - 2)
sub(word, "{default+e}" word "{default+d}", menu)
gsub(/^enum /, " enum ", menu) # The extra spaces are there to vertically align
# the type of element on the menu to make it easy
# to read
} else if (type == "Module") {
if (length(menu) > 30) { # The "menu" bit (as returned by racer),
# contains the path to the source file
# containing the module...
menu = substr(menu, length(menu) - 29, 30) # ... trimming it, so the completion menu
# doesn''t get distorted if it''s too long
}
menu = " mod {default+e}" word "{default+d} .." menu # The extra spaces are there to vertically align
# the type of element on the menu to make it easy
# to read
} else if (type == "Trait") {
sub(word, "{default+e}" word "{default+d}", menu)
gsub(/^trait /, " trait ", menu) # The extra spaces are there to vertically align
# the type of element on the menu to make it easy
# to read
} else if (type == "Type") {
sub(word, "{default+e}" word "{default+d}", menu)
gsub(/^type /, " type ", menu) # The extra spaces are there to vertically align
# the type of element on the menu to make it easy
# to read
} else if (type == "Struct") {
sub(word, "{default+e}" word "{default+d}", menu) # Struct doesn''t have extra spaces because it''s
# the longest keyword
} else {
menu = "{default+e}" word "{default+d} " menu
}
candidate = word "|" desc "|" menu
gsub(/:/, "\\:", candidate)
print candidate
}'
)
printf %s\\n "evaluate-commands -client '${kak_client}' %{
set-option buffer=${kak_bufname} racer_completions %@${compl%?}@
}" | kak -p ${kak_session}
rm -r ${dir}
) > /dev/null 2>&1 < /dev/null &
}
}
define-command racer-enable-autocomplete -docstring "Add racer completion candidates to the completer" %{
set-option window completers "option=racer_completions:%opt{completers}"
hook window -group racer-autocomplete InsertIdle .* %{ try %{
execute-keys -draft <a-h><a-k>([\w\.]|::).\z<ret>
racer-complete
} }
alias window complete racer-complete
}
define-command racer-disable-autocomplete -docstring "Disable racer completion" %{
set-option window completers %sh{ printf %s\\n "'${kak_opt_completers}'" | sed 's/option=racer_completions://g' }
remove-hooks window racer-autocomplete
unalias window complete racer-complete
}
define-command racer-go-definition -docstring "Jump to where the rust identifier below the cursor is defined" %{
%sh{
dir=$(mktemp -d "${TMPDIR:-/tmp}"/kak-racer.XXXXXXXX)
printf %s\\n "set-option buffer racer_tmp_dir ${dir}"
printf %s\\n "evaluate-commands -no-hooks %{ write ${dir}/buf }"
}
%sh{
dir=${kak_opt_racer_tmp_dir}
cursor="${kak_cursor_line} $((${kak_cursor_column} - 1))"
racer_data=$(racer --interface tab-text find-definition ${cursor} "${kak_buffile}" "${dir}/buf" | head -n 1)
racer_match=$(printf %s\\n "$racer_data" | cut -f1 )
if [ "$racer_match" = "MATCH" ]; then
racer_line=$(printf %s\\n "$racer_data" | cut -f3 )
racer_column=$(printf %s\\n "$racer_data" | cut -f4 )
racer_file=$(printf %s\\n "$racer_data" | cut -f5 )
printf %s\\n "edit -existing '$racer_file' $racer_line $racer_column"
if [[ "$racer_file" == ${RUST_SRC_PATH}* ]]; then
printf %s\\n "set-option buffer readonly true" # The definition resides on the standard library, and the new buffer should be readonly
else
if [[ "$racer_file" == ${HOME}/.cargo/registry/src* ]]; then
printf %s\\n "set-option buffer readonly true" # The definition resides on an external crate, and the new buffer should be readonly
fi
fi
else
printf %s\\n "echo -debug 'racer could not find a definition'"
fi
}
}
define-command racer-show-doc -docstring "Show the documentation about the rust identifier below the cursor" %{
%sh{
dir=$(mktemp -d "${TMPDIR:-/tmp}"/kak-racer.XXXXXXXX)
printf %s\\n "set-option buffer racer_tmp_dir ${dir}"
printf %s\\n "evaluate-commands -no-hooks %{ write ${dir}/buf }"
}
%sh{
dir=${kak_opt_racer_tmp_dir}
cursor="${kak_cursor_line} ${kak_cursor_column}"
racer_data=$(racer --interface tab-text complete-with-snippet ${cursor} "${kak_buffile}" "${dir}/buf" | sed -n 2p )
racer_match=$(printf %s\\n "$racer_data" | cut -f1)
if [ "$racer_match" = "MATCH" ]; then
racer_doc=$(printf %s\\n "$racer_data" | cut -f9 )
racer_doc=$(printf %s\\n "$racer_doc" |
sed -e 's/^"\(.*\)"$/\1/g' | # Remove leading and trailing quotes
sed -e "s/@/\\\\@/g") # Escape all @ so that it can be properly used in the string expansion
printf "info %%@$racer_doc@"
else
printf %s\\n "echo -debug 'racer could not find a definition'"
fi
}
}