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ale/ale_linters/javascript/flow.vim

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" Author: Zach Perrault -- @zperrault
" Description: FlowType checking for JavaScript files
let g:ale_javascript_flow_executable =
\ get(g:, 'ale_javascript_flow_executable', 'flow')
let g:ale_javascript_flow_use_global =
\ get(g:, 'ale_javascript_flow_use_global', 0)
function! ale_linters#javascript#flow#GetExecutable(buffer) abort
if g:ale_javascript_flow_use_global
return g:ale_javascript_flow_executable
endif
return ale#util#ResolveLocalPath(
\ a:buffer,
\ 'node_modules/.bin/flow',
\ g:ale_javascript_flow_executable
\)
endfunction
function! ale_linters#javascript#flow#GetCommand(buffer) abort
return ale_linters#javascript#flow#GetExecutable(a:buffer)
\ . ' check-contents --json --from ale'
endfunction
function! ale_linters#javascript#flow#Handle(buffer, lines)
let l:flow_output = json_decode(join(a:lines, ''))
if has_key(l:flow_output, 'errors')
let l:output = []
for l:error in l:flow_output.errors
" Each error is broken up into parts
let l:text = ''
let l:line = 0
for l:message in l:error.message
" Comments have no line of column information
if l:message.line + 0
let l:line = l:message.line + 0
endif
let l:text = l:text . ' ' . l:message.descr
endfor
call add(l:output, {
\ 'bufnr': a:buffer,
\ 'lnum': l:line,
\ 'vcol': 0,
\ 'col': 0,
\ 'text': l:text,
\ 'type': l:error.level ==# 'error' ? 'E' : 'W',
\})
endfor
return l:output
else
return []
endif
endfunction
call ale#linter#Define('javascript', {
\ 'name': 'flow',
\ 'executable_callback': 'ale_linters#javascript#flow#GetExecutable',
\ 'command_callback': 'ale_linters#javascript#flow#GetCommand',
\ 'callback': 'ale_linters#javascript#flow#Handle',
\})