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" Author: Prashanth Chandra https://github.com/prashcr, Aleh Kashnikau https://github.com/mkusher
" Description: type checker for TypeScript files
function! ale_linters#typescript#typecheck#Handle(buffer, lines) abort
" Matches patterns like the following:
"
" hello.ts[7, 41]: Property 'a' does not exist on type 'A'
" hello.ts[16, 7]: Type 'A' is not assignable to type 'B'
"
let l:pattern = '.\+.ts\[\(\d\+\), \(\d\+\)\]: \(.\+\)'
let l:output = []
for l:line in a:lines
let l:match = matchlist(l:line, l:pattern)
if len(l:match) == 0
continue
endif
let l:line = l:match[1] + 0
let l:column = l:match[2] + 0
let l:type = 'E'
let l:text = l:match[3]
" vcol is Needed to indicate that the column is a character.
call add(l:output, {
\ 'bufnr': a:buffer,
\ 'lnum': l:line,
\ 'vcol': 0,
\ 'col': l:column,
\ 'text': l:text,
\ 'type': l:type,
\ 'nr': -1,
\})
endfor
return l:output
endfunction
call ale#linter#Define('typescript', {
\ 'name': 'typecheck',
\ 'executable': 'typecheck',
\ 'command': 'typecheck %s',
\ 'callback': 'ale_linters#typescript#typecheck#Handle',
\})
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