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" 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
let s:should_lint_file_for_buffer = {}
" A function for checking various conditions whereby ALE just shouldn't
" attempt to do anything, say if particular buffer types are open in Vim.
function! ale#ShouldDoNothing() abort
" Do nothing for blacklisted files
" OR if ALE is running in the sandbox
return index(g:ale_filetype_blacklist, &filetype) >= 0
\ || (exists('*getcmdwintype') && !empty(getcmdwintype()))
\ || ale#util#InSandbox()
endfunction
" (delay, [linting_flag])
function! ale#Queue(delay, ...) abort
if len(a:0) > 1
throw 'too many arguments!'
endif
" Default linting_flag to ''
let l:linting_flag = get(a:000, 0, '')
if l:linting_flag !=# '' && l:linting_flag !=# 'lint_file'
throw "linting_flag must be either '' or 'lint_file'"
endif
if ale#ShouldDoNothing()
return
endif
" Remember that we want to check files for this buffer.
" We will remember this until we finally run the linters, via any event.
if l:linting_flag ==# 'lint_file'
let s:should_lint_file_for_buffer[bufnr('%')] = 1
endif
if s:lint_timer != -1
call timer_stop(s:lint_timer)
let s:lint_timer = -1
endif
let l:linters = ale#linter#Get(&filetype)
if len(l: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
if ale#ShouldDoNothing()
return
endif
let l:buffer = bufnr('%')
let l:linters = ale#linter#Get(&filetype)
let l:should_lint_file = 0
" Check if we previously requested checking the file.
if has_key(s:should_lint_file_for_buffer, l:buffer)
unlet s:should_lint_file_for_buffer[l:buffer]
let l:should_lint_file = 1
endif
" Initialise the buffer information if needed.
call ale#engine#InitBufferInfo(l:buffer)
" Clear the new loclist again, so we will work with all new items.
let g:ale_buffer_info[l:buffer].new_loclist = []
if l:should_lint_file
" Clear loclist items for files if we are checking files again.
let g:ale_buffer_info[l:buffer].lint_file_loclist = []
else
" Otherwise, don't run any `lint_file` linters
" We will continue running any linters which are currently checking
" the file, and the items will be mixed together with any new items.
call filter(l:linters, '!v:val.lint_file')
endif
for l:linter in l:linters
call ale#engine#Invoke(l:buffer, l:linter)
endfor
endfunction
" Reset flags indicating that files should be checked for all buffers.
function! ale#ResetLintFileMarkers() abort
let s:should_lint_file_for_buffer = {}
endfunction
" Given a buffer number and a variable name, look for that variable in the
" buffer scope, then in global scope. If the name does not exist in the global
" scope, an exception will be thrown.
"
" Every variable name will be prefixed with 'ale_'.
function! ale#Var(buffer, variable_name) abort
let l:full_name = 'ale_' . a:variable_name
return getbufvar(a:buffer, l:full_name, g:[l:full_name])
endfunction
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