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ale/autoload/ale.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

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VimL

" Author: w0rp <devw0rp@gmail.com>
" Description: Primary code path for the plugin
" Manages execution of linters when requested by autocommands
let s:lint_timer = -1
function! ale#Queue(delay) abort
if s:lint_timer != -1
call timer_stop(s:lint_timer)
let s:lint_timer = -1
endif
let linters = ale#linter#Get(&filetype)
if len(linters) == 0
" There are no linters to lint with, so stop here.
return
endif
if a:delay > 0
let s:lint_timer = timer_start(a:delay, function('ale#Lint'))
else
call ale#Lint()
endif
endfunction
function! ale#Lint(...) abort
let buffer = bufnr('%')
let linters = ale#linter#Get(&filetype)
" Set a variable telling us to clear the loclist later.
let g:ale_buffer_should_reset_map[buffer] = 1
for linter in linters
" Check if a given linter has a program which can be executed.
if has_key(linter, 'executable_callback')
let l:executable = ale#util#GetFunction(linter.executable_callback)(buffer)
else
let l:executable = linter.executable
endif
if !executable(l:executable)
" The linter's program cannot be executed, so skip it.
continue
endif
call ale#engine#Invoke(buffer, linter)
endfor
endfunction