118 lines
3.7 KiB
VimL
118 lines
3.7 KiB
VimL
" Author: w0rp <devw0rp@gmail.com>
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" Description: Primary code path for the plugin
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" Manages execution of linters when requested by autocommands
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let s:lint_timer = -1
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let s:queued_buffer_number = -1
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let s:should_lint_file_for_buffer = {}
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" A function for checking various conditions whereby ALE just shouldn't
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" attempt to do anything, say if particular buffer types are open in Vim.
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function! ale#ShouldDoNothing() abort
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" Do nothing for blacklisted files
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" OR if ALE is running in the sandbox
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return index(g:ale_filetype_blacklist, &filetype) >= 0
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\ || (exists('*getcmdwintype') && !empty(getcmdwintype()))
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\ || ale#util#InSandbox()
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endfunction
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" (delay, [linting_flag])
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function! ale#Queue(delay, ...) abort
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if len(a:0) > 1
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throw 'too many arguments!'
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endif
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" Default linting_flag to ''
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let l:linting_flag = get(a:000, 0, '')
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if l:linting_flag !=# '' && l:linting_flag !=# 'lint_file'
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throw "linting_flag must be either '' or 'lint_file'"
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endif
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if ale#ShouldDoNothing()
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return
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endif
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" Remember that we want to check files for this buffer.
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" We will remember this until we finally run the linters, via any event.
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if l:linting_flag ==# 'lint_file'
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let s:should_lint_file_for_buffer[bufnr('%')] = 1
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endif
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if s:lint_timer != -1
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call timer_stop(s:lint_timer)
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let s:lint_timer = -1
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endif
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let l:linters = ale#linter#Get(&filetype)
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if len(l:linters) == 0
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" There are no linters to lint with, so stop here.
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return
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endif
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if a:delay > 0
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let s:queued_buffer_number = bufnr('%')
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let s:lint_timer = timer_start(a:delay, function('ale#Lint'))
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else
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call ale#Lint()
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endif
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endfunction
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function! ale#Lint(...) abort
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if ale#ShouldDoNothing()
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return
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endif
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" Get the buffer number linting was queued for.
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" or else take the current one.
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let l:buffer = len(a:0) > 1 && a:1 == s:lint_timer
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\ ? s:queued_buffer_number
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\ : bufnr('%')
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" Use the filetype from the buffer
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let l:linters = ale#linter#Get(getbufvar(l:buffer, '&filetype'))
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let l:should_lint_file = 0
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" Check if we previously requested checking the file.
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if has_key(s:should_lint_file_for_buffer, l:buffer)
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unlet s:should_lint_file_for_buffer[l:buffer]
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let l:should_lint_file = 1
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endif
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" Initialise the buffer information if needed.
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call ale#engine#InitBufferInfo(l:buffer)
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" Clear the new loclist again, so we will work with all new items.
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let g:ale_buffer_info[l:buffer].new_loclist = []
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if l:should_lint_file
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" Clear loclist items for files if we are checking files again.
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let g:ale_buffer_info[l:buffer].lint_file_loclist = []
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else
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" Otherwise, don't run any `lint_file` linters
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" We will continue running any linters which are currently checking
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" the file, and the items will be mixed together with any new items.
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call filter(l:linters, '!v:val.lint_file')
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endif
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for l:linter in l:linters
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call ale#engine#Invoke(l:buffer, l:linter)
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endfor
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endfunction
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" Reset flags indicating that files should be checked for all buffers.
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function! ale#ResetLintFileMarkers() abort
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let s:should_lint_file_for_buffer = {}
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endfunction
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" Given a buffer number and a variable name, look for that variable in the
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" buffer scope, then in global scope. If the name does not exist in the global
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" scope, an exception will be thrown.
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"
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" Every variable name will be prefixed with 'ale_'.
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function! ale#Var(buffer, variable_name) abort
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let l:full_name = 'ale_' . a:variable_name
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return getbufvar(a:buffer, l:full_name, g:[l:full_name])
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endfunction
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