ale/ale_linters/scala/scalac.vim

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" Author: Zoltan Kalmar - https://github.com/kalmiz,
" w0rp <devw0rp@gmail.com>
" Description: Basic scala support using scalac
function! ale_linters#scala#scalac#GetExecutable(buffer) abort
if index(split(getbufvar(a:buffer, '&filetype'), '\.'), 'sbt') >= 0
" Don't check sbt files with scalac.
return ''
endif
return 'scalac'
endfunction
function! ale_linters#scala#scalac#GetCommand(buffer) abort
let l:executable = ale_linters#scala#scalac#GetExecutable(a:buffer)
if empty(l:executable)
return ''
endif
return ale#Escape(l:executable) . ' -Ystop-after:parser %t'
endfunction
function! ale_linters#scala#scalac#Handle(buffer, lines) abort
" Matches patterns line the following:
"
" /var/folders/5q/20rgxx3x1s34g3m14n5bq0x80000gn/T/vv6pSsy/0:26: error: expected class or object definition
let l:pattern = '^.\+:\(\d\+\): \(\w\+\): \(.\+\)'
let l:output = []
let l:ln = 0
for l:line in a:lines
let l:ln = l:ln + 1
let l:match = matchlist(l:line, l:pattern)
if len(l:match) == 0
continue
endif
let l:text = l:match[3]
let l:type = l:match[2] is# 'error' ? 'E' : 'W'
let l:col = 0
if l:ln + 1 < len(a:lines)
let l:col = stridx(a:lines[l:ln + 1], '^')
endif
call add(l:output, {
\ 'lnum': l:match[1] + 0,
\ 'col': l:col + 1,
\ 'text': l:text,
\ 'type': l:type,
\})
endfor
return l:output
endfunction
call ale#linter#Define('scala', {
\ 'name': 'scalac',
\ 'executable_callback': 'ale_linters#scala#scalac#GetExecutable',
\ 'command_callback': 'ale_linters#scala#scalac#GetCommand',
\ 'callback': 'ale_linters#scala#scalac#Handle',
\ 'output_stream': 'stderr',
\})