vim-polyglot/autoload/rustfmt.vim
2015-12-06 11:31:38 +01:00

84 lines
2.2 KiB
VimL

if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'rust') == -1
" Author: Stephen Sugden <stephen@stephensugden.com>
"
" Adapted from https://github.com/fatih/vim-go
if !exists("g:rustfmt_autosave")
let g:rustfmt_autosave = 0
endif
if !exists("g:rustfmt_command")
let g:rustfmt_command = "rustfmt"
endif
if !exists("g:rustfmt_options")
let g:rustfmt_options = ""
endif
if !exists("g:rustfmt_fail_silently")
let g:rustfmt_fail_silently = 0
endif
let s:got_fmt_error = 0
function! rustfmt#Format()
let l:curw = winsaveview()
let l:tmpname = expand("%:p:h") . "/." . expand("%:p:t") . ".rustfmt"
call writefile(getline(1, '$'), l:tmpname)
let command = g:rustfmt_command . " --write-mode=overwrite "
let out = systemlist(command . g:rustfmt_options . " " . shellescape(l:tmpname))
if v:shell_error == 0
" remove undo point caused via BufWritePre
try | silent undojoin | catch | endtry
" Replace current file with temp file, then reload buffer
call rename(l:tmpname, expand('%'))
silent edit!
let &syntax = &syntax
" only clear location list if it was previously filled to prevent
" clobbering other additions
if s:got_fmt_error
let s:got_fmt_error = 0
call setloclist(0, [])
lwindow
endif
elseif g:rustfmt_fail_silently == 0
" otherwise get the errors and put them in the location list
let errors = []
for line in out
" src/lib.rs:13:5: 13:10 error: expected `,`, or `}`, found `value`
let tokens = matchlist(line, '^\(.\{-}\):\(\d\+\):\(\d\+\):\s*\(\d\+:\d\+\s*\)\?\s*error: \(.*\)')
if !empty(tokens)
call add(errors, {"filename": @%,
\"lnum": tokens[2],
\"col": tokens[3],
\"text": tokens[5]})
endif
endfor
if empty(errors)
% | " Couldn't detect rustfmt error format, output errors
endif
if !empty(errors)
call setloclist(0, errors, 'r')
echohl Error | echomsg "rustfmt returned error" | echohl None
endif
let s:got_fmt_error = 1
lwindow
" We didn't use the temp file, so clean up
call delete(l:tmpname)
endif
call winrestview(l:curw)
endfunction
endif