ale/ale_linters/json/jsonlint.vim
Bjorn Neergaard 7f0ce89d2b First pass at optimizing ale to autoload (#80)
* First pass at optimizing ale to autoload

First off, the structure/function names should be revised a bit,
but I will wait for @w0rp's input before unifying the naming style.
Second off, the docs probably need some more work, I just did some
simple find-and-replace work.

With that said, this pull brings major performance gains for ale. On my
slowest system, fully loading ale and all its code takes around 150ms.

I have moved all of ale's autoload-able code to autoload/, and in
addition, implemented lazy-loading of linters. This brings load time on
that same system down to 5ms.

The only downside of lazy loading is that `g:ale_linters` cannot be
changed at runtime; however, it also speeds up performance at runtime by
simplfying the logic greatly.

Please let me know what you think!

Closes #59

* Address Travis/Vint errors

For some reason, ale isn't running vint for me...

* Incorporate feedback, make fixes

Lazy-loading logic is much improved.

* Add header comments; remove incorrect workaround

* Remove unneeded plugin guards

* Fix lazy-loading linter logic

Set the wrong variable....

* Fix capitialization
2016-10-10 19:51:29 +01:00

45 lines
1.1 KiB
VimL

" Author: KabbAmine <amine.kabb@gmail.com>
if exists('g:loaded_ale_linters_json_jsonlint')
finish
endif
let g:loaded_ale_linters_json_jsonlint = 1
function! ale_linters#json#jsonlint#Handle(buffer, lines)
" Matches patterns like the following:
" line 2, col 15, found: 'STRING' - expected: 'EOF', '}', ',', ']'.
let pattern = '^line \(\d\+\), col \(\d*\), \(.\+\)$'
let output = []
for line in a:lines
let match = matchlist(line, pattern)
if len(l:match) == 0
continue
endif
" vcol is needed to indicate that the column is a character
call add(output, {
\ 'bufnr': a:buffer,
\ 'lnum': match[1] + 0,
\ 'vcol': 0,
\ 'col': match[2] + 0,
\ 'text': match[3],
\ 'type': 'E',
\ 'nr': -1,
\})
endfor
return output
endfunction
call ale#linter#Define('json', {
\ 'name': 'jsonlint',
\ 'executable': 'jsonlint',
\ 'output_stream': 'stderr',
\ 'command': 'jsonlint --compact -',
\ 'callback': 'ale_linters#json#jsonlint#Handle',
\})