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" MIT License. Copyright (c) 2013-2018 Bjorn Neergaard, w0rp, hallettj et al.
" vim: et ts=2 sts=2 sw=2
scriptencoding utf-8
let s:error_symbol = get(g:, 'airline#extensions#languageclient#error_symbol', 'E:')
let s:warning_symbol = get(g:, 'airline#extensions#languageclient#warning_symbol', 'W:')
let s:show_line_numbers = get(g:, 'airline#extensions#languageclient#show_line_numbers', 1)
" Severity codes from the LSP spec
let s:severity_error = 1
let s:severity_warning = 2
let s:severity_info = 3
let s:severity_hint = 4
" After each LanguageClient state change `s:diagnostics` will be populated with
" a map from file names to lists of errors, warnings, informational messages,
" and hints.
let s:diagnostics = {}
function! s:languageclient_refresh()
if get(g:, 'airline_skip_empty_sections', 0)
exe ':AirlineRefresh'
endif
endfunction
function! s:record_diagnostics(state)
let result = json_decode(a:state.result)
let s:diagnostics = result.diagnostics
call s:languageclient_refresh()
endfunction
function! s:get_diagnostics()
call LanguageClient#getState(function("s:record_diagnostics"))
endfunction
function! s:diagnostics_for_buffer()
return get(s:diagnostics, expand('%:p'), [])
endfunction
function! s:airline_languageclient_count(cnt, symbol)
return a:cnt ? a:symbol. a:cnt : ''
endfunction
function! s:airline_languageclient_get_line_number(type) abort
let linenumber_of_first_problem = 0
for d in s:diagnostics_for_buffer()
if has_key(d, 'severity') && d.severity == a:type
let linenumber_of_first_problem = d.range.start.line
break
endif
endfor
if linenumber_of_first_problem == 0
return ''
endif
let open_lnum_symbol = get(g:, 'airline#extensions#languageclient#open_lnum_symbol', '(L')
let close_lnum_symbol = get(g:, 'airline#extensions#languageclient#close_lnum_symbol', ')')
return open_lnum_symbol . linenumber_of_first_problem . close_lnum_symbol
endfunction
function! airline#extensions#languageclient#get(type)
let is_err = a:type == s:severity_error
let symbol = is_err ? s:error_symbol : s:warning_symbol
let cnt = 0
for d in s:diagnostics_for_buffer()
if has_key(d, 'severity') && d.severity == a:type
let cnt += 1
endif
endfor
if cnt == 0
return ''
endif
if s:show_line_numbers == 1
return s:airline_languageclient_count(cnt, symbol) . <sid>airline_languageclient_get_line_number(a:type)
else
return s:airline_languageclient_count(cnt, symbol)
endif
endfunction
function! airline#extensions#languageclient#get_warning()
return airline#extensions#languageclient#get(s:severity_warning)
endfunction
function! airline#extensions#languageclient#get_error()
return airline#extensions#languageclient#get(s:severity_error)
endfunction
function! airline#extensions#languageclient#init(ext)
call airline#parts#define_function('languageclient_error_count', 'airline#extensions#languageclient#get_error')
call airline#parts#define_function('languageclient_warning_count', 'airline#extensions#languageclient#get_warning')
augroup airline_languageclient
autocmd!
autocmd User LanguageClientDiagnosticsChanged call <sid>get_diagnostics()
augroup END
endfunction
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