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" Author: jparoz <jesse.paroz@gmail.com>
" Description: hlint for Haskell files
function! ale_linters#haskell#hlint#Handle(buffer, lines)
let l:errors = json_decode(join(a:lines, ''))
let l:output = []
for l:error in l:errors
" vcol is Needed to indicate that the column is a character.
call add(l:output, {
\ 'bufnr': a:buffer,
\ 'lnum': l:error.startLine + 0,
\ 'vcol': 0,
\ 'col': l:error.startColumn + 0,
\ 'text': l:error.severity . ': ' . l:error.hint . '. Found: ' . l:error.from . ' Why not: ' . l:error.to,
\ 'type': l:error.severity ==# 'Error' ? 'E' : 'W',
\})
endfor
return l:output
endfunction
call ale#linter#Define('haskell', {
\ 'name': 'hlint',
\ 'executable': 'hlint',
\ 'command': 'hlint --color=never --json -',
\ 'callback': 'ale_linters#haskell#hlint#Handle',
\})
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