3 # Functions related to handling LSP diagnostics.
5 import './options.vim' as opt
6 import './buffer.vim' as buf
10 # serverDiagnostics: {
11 # lspServer1Id: [diag, diag, diag]
12 # lspServer2Id: [diag, diag, diag]
14 # serverDiagnosticsByLnum: {
15 # lspServer1Id: { [lnum]: [diag, diag diag] },
16 # lspServer2Id: { [lnum]: [diag, diag diag] },
18 # sortedDiagnostics: [lspServer1.diags, ...lspServer2.diags]->sort()
20 var diagsMap: dict<dict<any>> = {}
22 # Initialize the signs and the text property type used for diagnostics.
24 # Signs used for LSP diagnostics
25 hlset([{name: 'LspDiagLine', default: true, linksto: 'DiffAdd'}])
26 hlset([{name: 'LspDiagSignErrorText', default: true, linksto: 'ErrorMsg'}])
27 hlset([{name: 'LspDiagSignWarningText', default: true, linksto: 'Search'}])
28 hlset([{name: 'LspDiagSignInfoText', default: true, linksto: 'Pmenu'}])
29 hlset([{name: 'LspDiagSignHintText', default: true, linksto: 'Question'}])
33 text: opt.lspOptions.diagSignErrorText,
34 texthl: 'LspDiagSignErrorText',
38 name: 'LspDiagWarning',
39 text: opt.lspOptions.diagSignWarningText,
40 texthl: 'LspDiagSignWarningText',
45 text: opt.lspOptions.diagSignInfoText,
46 texthl: 'LspDiagSignInfoText',
51 text: opt.lspOptions.diagSignHintText,
52 texthl: 'LspDiagSignHintText',
57 hlset([{name: 'LspDiagInlineError', default: true, linksto: 'SpellBad'}])
58 hlset([{name: 'LspDiagInlineWarning', default: true, linksto: 'SpellCap'}])
59 hlset([{name: 'LspDiagInlineInfo', default: true, linksto: 'SpellRare'}])
60 hlset([{name: 'LspDiagInlineHint', default: true, linksto: 'SpellLocal'}])
62 var override = &cursorline
63 && &cursorlineopt =~ '\<line\>\|\<screenline\>\|\<both\>'
65 prop_type_add('LspDiagInlineError',
66 { highlight: 'LspDiagInlineError',
69 prop_type_add('LspDiagInlineWarning',
70 { highlight: 'LspDiagInlineWarning',
73 prop_type_add('LspDiagInlineInfo',
74 { highlight: 'LspDiagInlineInfo',
77 prop_type_add('LspDiagInlineHint',
78 { highlight: 'LspDiagInlineHint',
82 hlset([{name: 'LspDiagVirtualText', default: true, linksto: 'LineNr'}])
83 prop_type_add('LspDiagVirtualText', {highlight: 'LspDiagVirtualText',
86 if opt.lspOptions.aleSupport
87 autocmd_add([{group: 'LspAleCmds', event: 'User', pattern: 'ALEWantResults', cmd: 'AleHook(g:ale_want_results_buffer)'}])
91 # Sort diagnostics ascending based on line and character offset
92 def SortDiags(diags: list<dict<any>>): list<dict<any>>
93 return diags->sort((a, b) => {
94 var linediff = a.range.start.line - b.range.start.line
96 return a.range.start.character - b.range.start.character
102 # Remove the diagnostics stored for buffer 'bnr'
103 export def DiagRemoveFile(bnr: number)
104 if diagsMap->has_key(bnr)
105 diagsMap->remove(bnr)
109 def DiagSevToSignName(severity: number): string
110 var typeMap: list<string> = ['LspDiagError', 'LspDiagWarning',
111 'LspDiagInfo', 'LspDiagHint']
115 return typeMap[severity - 1]
118 def DiagSevToInlineHLName(severity: number): string
119 var typeMap: list<string> = [
120 'LspDiagInlineError',
121 'LspDiagInlineWarning',
126 return 'LspDiagInlineHint'
128 return typeMap[severity - 1]
131 def DiagSevToSymbolText(severity: number): string
132 var typeMap: list<string> = [
133 opt.lspOptions.diagSignErrorText,
134 opt.lspOptions.diagSignWarningText,
135 opt.lspOptions.diagSignInfoText,
136 opt.lspOptions.diagSignHintText
139 return opt.lspOptions.diagSignHintText
141 return typeMap[severity - 1]
144 # Remove signs and text properties for diagnostics in buffer
145 def RemoveDiagVisualsForBuffer(bnr: number)
146 # Remove all the existing diagnostic signs
147 sign_unplace('LSPDiag', {buffer: bnr})
149 if opt.lspOptions.showDiagWithVirtualText
150 # Remove all the existing virtual text
151 prop_remove({type: 'LspDiagVirtualText', bufnr: bnr, all: true})
154 if opt.lspOptions.highlightDiagInline
155 # Remove all the existing virtual text
156 prop_remove({type: 'LspDiagInlineError', bufnr: bnr, all: true})
157 prop_remove({type: 'LspDiagInlineWarning', bufnr: bnr, all: true})
158 prop_remove({type: 'LspDiagInlineInfo', bufnr: bnr, all: true})
159 prop_remove({type: 'LspDiagInlineHint', bufnr: bnr, all: true})
163 # Refresh the placed diagnostics in buffer 'bnr'
164 # This inline signs, inline props, and virtual text diagnostics
165 def DiagsRefresh(bnr: number)
168 RemoveDiagVisualsForBuffer(bnr)
170 if !diagsMap->has_key(bnr) ||
171 diagsMap[bnr].sortedDiagnostics->empty()
175 # Initialize default/fallback properties for diagnostic virtual text:
176 var diag_align: string = 'above'
177 var diag_wrap: string = 'truncate'
178 var diag_symbol: string = '┌─'
180 if opt.lspOptions.diagVirtualTextAlign == 'below'
182 diag_wrap = 'truncate'
184 elseif opt.lspOptions.diagVirtualTextAlign == 'after'
190 var signs: list<dict<any>> = []
191 var diags: list<dict<any>> = diagsMap[bnr].sortedDiagnostics
193 # TODO: prioritize most important severity if there are multiple diagnostics
195 var lnum = diag.range.start.line + 1
196 signs->add({id: 0, buffer: bnr, group: 'LSPDiag',
198 name: DiagSevToSignName(diag.severity),
199 priority: 10 - diag.severity})
202 if opt.lspOptions.highlightDiagInline
203 prop_add(diag.range.start.line + 1,
204 util.GetLineByteFromPos(bnr, diag.range.start) + 1,
205 {end_lnum: diag.range.end.line + 1,
206 end_col: util.GetLineByteFromPos(bnr, diag.range.end) + 1,
208 type: DiagSevToInlineHLName(diag.severity)})
211 if opt.lspOptions.showDiagWithVirtualText
214 var symbol: string = diag_symbol
216 if diag_align == 'after'
218 symbol = DiagSevToSymbolText(diag.severity)
220 var charIdx = util.GetCharIdxWithoutCompChar(bnr, diag.range.start)
223 padding = strdisplaywidth(getline(diag.range.start.line + 1)[ : charIdx - 1])
227 prop_add(lnum, 0, {bufnr: bnr,
228 type: 'LspDiagVirtualText',
229 text: $'{symbol} {diag.message}',
230 text_align: diag_align,
231 text_wrap: diag_wrap,
232 text_padding_left: padding})
234 catch /E966\|E964/ # Invalid lnum | Invalid col
235 # Diagnostics arrive asynchronous and the document changed while they wore
236 # send. Ignore this as new once will arrive shortly.
240 signs->sign_placelist()
243 # Sends diagnostics to Ale
244 def SendAleDiags(bnr: number, timerid: number)
245 if !diagsMap->has_key(bnr)
249 # Conver to Ale's diagnostics format (:h ale-loclist-format)
250 ale#other_source#ShowResults(bnr, 'lsp', diagsMap[bnr].sortedDiagnostics->mapnew((_, v) => {
251 return {text: v.message,
252 lnum: v.range.start.line + 1,
253 col: util.GetLineByteFromPos(bnr, v.range.start) + 1,
254 end_lnum: v.range.end.line + 1,
255 end_col: util.GetLineByteFromPos(bnr, v.range.end) + 1,
256 type: "EWIH"[v.severity - 1]}
260 # Hook called when Ale wants to retrieve new diagnostics
261 def AleHook(bnr: number)
262 ale#other_source#StartChecking(bnr, 'lsp')
263 timer_start(0, function('SendAleDiags', [bnr]))
266 # New LSP diagnostic messages received from the server for a file.
267 # Update the signs placed in the buffer for this file
268 export def ProcessNewDiags(bnr: number)
269 if opt.lspOptions.autoPopulateDiags
270 DiagsUpdateLocList(bnr)
273 if opt.lspOptions.aleSupport
274 SendAleDiags(bnr, -1)
276 elseif !opt.lspOptions.autoHighlightDiags
280 if bnr == -1 || !diagsMap->has_key(bnr)
284 var curmode: string = mode()
285 if curmode == 'i' || curmode == 'R' || curmode == 'Rv'
286 # postpone placing signs in insert mode and replace mode. These will be
287 # placed after the user returns to Normal mode.
288 b:LspDiagsUpdatePending = true
295 # process a diagnostic notification message from the LSP server
296 # Notification: textDocument/publishDiagnostics
297 # Param: PublishDiagnosticsParams
298 export def DiagNotification(lspserver: dict<any>, uri: string, diags_arg: list<dict<any>>): void
299 # Diagnostics are disabled for this server
300 if lspserver.features->has_key('diagnostics') && !lspserver.features.diagnostics
304 var fname: string = util.LspUriToFile(uri)
305 var bnr: number = fname->bufnr()
307 # Is this condition possible?
311 var newDiags: list<dict<any>> = diags_arg
313 if lspserver.needOffsetEncoding
314 # Decode the position encoding in all the diags
315 newDiags->map((_, dval) => {
316 lspserver.decodeRange(bnr, dval.range)
321 if lspserver.processDiagHandler != null_function
322 newDiags = lspserver.processDiagHandler(diags_arg)
325 # TODO: Is the buffer (bnr) always a loaded buffer? Should we load it here?
326 var lastlnum: number = bnr->getbufinfo()[0].linecount
328 # store the diagnostic for each line separately
329 var diagsByLnum: dict<list<dict<any>>> = {}
331 var diagWithinRange: list<dict<any>> = []
333 if diag.range.start.line + 1 > lastlnum
334 # Make sure the line number is a valid buffer line number
335 diag.range.start.line = lastlnum - 1
338 var lnum = diag.range.start.line + 1
339 if !diagsByLnum->has_key(lnum)
340 diagsByLnum[lnum] = []
342 diagsByLnum[lnum]->add(diag)
344 diagWithinRange->add(diag)
347 var serverDiags: dict<list<any>> = diagsMap->has_key(bnr) ?
348 diagsMap[bnr].serverDiagnostics : {}
349 serverDiags[lspserver.id] = diagWithinRange
351 var serverDiagsByLnum: dict<dict<list<any>>> = diagsMap->has_key(bnr) ?
352 diagsMap[bnr].serverDiagnosticsByLnum : {}
353 serverDiagsByLnum[lspserver.id] = diagsByLnum
355 # store the diagnostic for each line separately
356 var joinedServerDiags: list<dict<any>> = []
357 for diags in serverDiags->values()
359 joinedServerDiags->add(diag)
363 var sortedDiags = SortDiags(joinedServerDiags)
366 sortedDiagnostics: sortedDiags,
367 serverDiagnosticsByLnum: serverDiagsByLnum,
368 serverDiagnostics: serverDiags
373 # Notify user scripts that diags has been updated
374 if exists('#User#LspDiagsUpdated')
375 :doautocmd <nomodeline> User LspDiagsUpdated
379 # get the count of error in the current buffer
380 export def DiagsGetErrorCount(): dict<number>
386 var bnr: number = bufnr()
387 if diagsMap->has_key(bnr)
388 var diags = diagsMap[bnr].sortedDiagnostics
390 var severity = diag->get('severity', -1)
403 return {Error: errCount, Warn: warnCount, Info: infoCount, Hint: hintCount}
406 # Map the LSP DiagnosticSeverity to a quickfix type character
407 def DiagSevToQfType(severity: number): string
408 var typeMap: list<string> = ['E', 'W', 'I', 'N']
414 return typeMap[severity - 1]
417 # Update the location list window for the current window with the diagnostic
419 # Returns true if diagnostics is not empty and false if it is empty.
420 def DiagsUpdateLocList(bnr: number): bool
421 var fname: string = bnr->bufname()->fnamemodify(':p')
426 var LspQfId: number = bnr->getbufvar('LspQfId', 0)
427 if !LspQfId->empty() && getloclist(0, {id: LspQfId}).id != LspQfId
431 if !diagsMap->has_key(bnr) ||
432 diagsMap[bnr].sortedDiagnostics->empty()
434 setloclist(0, [], 'r', {id: LspQfId, items: []})
439 var qflist: list<dict<any>> = []
442 var diags = diagsMap[bnr].sortedDiagnostics
444 text = diag.message->substitute("\n\\+", "\n", 'g')
445 qflist->add({filename: fname,
446 lnum: diag.range.start.line + 1,
447 col: util.GetLineByteFromPos(bnr, diag.range.start) + 1,
448 end_lnum: diag.range.end.line + 1,
449 end_col: util.GetLineByteFromPos(bnr, diag.range.end) + 1,
451 type: DiagSevToQfType(diag.severity)})
455 var props = {title: 'Language Server Diagnostics', items: qflist}
460 setloclist(0, [], op, props)
462 setbufvar(bnr, 'LspQfId', getloclist(0, {id: 0}).id)
468 # Display the diagnostic messages from the LSP server for the current buffer
470 export def ShowAllDiags(): void
471 if !DiagsUpdateLocList(bufnr())
472 util.WarnMsg($'No diagnostic messages found for {@%}')
476 var save_winid = win_getid()
477 # make the diagnostics error list the active one and open it
478 var LspQfId: number = getbufvar(bufnr(), 'LspQfId', 0)
479 var LspQfNr: number = getloclist(0, {id: LspQfId, nr: 0}).nr
480 exe $':{LspQfNr} lhistory'
482 if !opt.lspOptions.keepFocusInDiags
483 save_winid->win_gotoid()
487 # Display the message of 'diag' in a popup window right below the position in
488 # the diagnostic message.
489 def ShowDiagInPopup(diag: dict<any>)
490 var dlnum = diag.range.start.line + 1
491 var ltext = dlnum->getline()
492 var dlcol = ltext->byteidxcomp(diag.range.start.character) + 1
494 var lastline = line('$')
496 # The line number is outside the last line in the file.
500 # The column is outside the last character in line.
501 dlcol = ltext->len() + 1
503 var d = screenpos(0, dlnum, dlcol)
505 # If the diag position cannot be converted to Vim lnum/col, then use
506 # the current cursor position
507 d = {row: line('.'), col: col('.')}
510 # Display a popup right below the diagnostics position
511 var msg = diag.message->split("\n")
512 var msglen = msg->reduce((acc, val) => max([acc, val->strcharlen()]), 0)
515 ppopts.pos = 'topleft'
516 ppopts.line = d.row + 1
527 popup_create(msg, ppopts)
530 # Display the 'diag' message in a popup or in the status message area
531 def DisplayDiag(diag: dict<any>)
532 if opt.lspOptions.showDiagInPopup
533 # Display the diagnostic message in a popup window.
534 ShowDiagInPopup(diag)
536 # Display the diagnostic message in the status message area
541 # Show the diagnostic message for the current line
542 export def ShowCurrentDiag(atPos: bool)
543 var bnr: number = bufnr()
544 var lnum: number = line('.')
545 var col: number = charcol('.')
546 var diag: dict<any> = GetDiagByPos(bnr, lnum, col, atPos)
548 util.WarnMsg($'No diagnostic messages found for current {atPos ? "position" : "line"}')
554 # Show the diagnostic message for the current line without linebreak
555 export def ShowCurrentDiagInStatusLine()
556 var bnr: number = bufnr()
557 var lnum: number = line('.')
558 var col: number = charcol('.')
559 var diag: dict<any> = GetDiagByPos(bnr, lnum, col)
561 # 15 is a enough length not to cause line break
562 var max_width = &columns - 15
564 if diag->has_key('code')
565 code = $'[{diag.code}] '
567 var msgNoLineBreak = code .. substitute(substitute(diag.message, "\n", ' ', ''), "\\n", ' ', '')
568 :echo msgNoLineBreak[ : max_width]
574 # Get the diagnostic from the LSP server for a particular line and character
576 export def GetDiagByPos(bnr: number, lnum: number, col: number,
577 atPos: bool = false): dict<any>
578 var diags_in_line = GetDiagsByLine(bnr, lnum)
580 for diag in diags_in_line
581 var startCharIdx = util.GetCharIdxWithoutCompChar(bnr, diag.range.start)
582 var endCharIdx = util.GetCharIdxWithoutCompChar(bnr, diag.range.end)
584 if col >= startCharIdx + 1 && col < endCharIdx + 1
587 elseif col <= startCharIdx + 1
592 # No diagnostic to the right of the position, return the last one instead
593 if !atPos && diags_in_line->len() > 0
594 return diags_in_line[-1]
600 # Get all diagnostics from the LSP server for a particular line in a file
601 export def GetDiagsByLine(bnr: number, lnum: number, lspserver: dict<any> = null_dict): list<dict<any>>
602 if !diagsMap->has_key(bnr)
606 var diags: list<dict<any>> = []
608 var serverDiagsByLnum = diagsMap[bnr].serverDiagnosticsByLnum
610 if lspserver == null_dict
611 for diagsByLnum in serverDiagsByLnum->values()
612 if diagsByLnum->has_key(lnum)
613 diags->extend(diagsByLnum[lnum])
617 if !serverDiagsByLnum->has_key(lspserver.id)
620 if serverDiagsByLnum[lspserver.id]->has_key(lnum)
621 diags = serverDiagsByLnum[lspserver.id][lnum]
625 return diags->sort((a, b) => {
626 return a.range.start.character - b.range.start.character
630 # Utility function to do the actual jump
631 def JumpDiag(diag: dict<any>)
632 var startPos: dict<number> = diag.range.start
633 setcursorcharpos(startPos.line + 1,
634 util.GetCharIdxWithoutCompChar(bufnr(), startPos) + 1)
635 if !opt.lspOptions.showDiagWithVirtualText
641 # jump to the next/previous/first diagnostic message in the current buffer
642 export def LspDiagsJump(which: string, a_count: number = 0): void
643 var fname: string = expand('%:p')
647 var bnr: number = bufnr()
649 if !diagsMap->has_key(bnr) ||
650 diagsMap[bnr].sortedDiagnostics->empty()
651 util.WarnMsg($'No diagnostic messages found for {fname}')
655 var diags = diagsMap[bnr].sortedDiagnostics
667 # Find the entry just before the current line (binary search)
668 var count = a_count > 1 ? a_count : 1
669 var curlnum: number = line('.')
670 var curcol: number = charcol('.')
671 for diag in (which == 'next' || which == 'here') ?
672 diags : diags->copy()->reverse()
673 var lnum = diag.range.start.line + 1
674 var col = util.GetCharIdxWithoutCompChar(bnr, diag.range.start) + 1
675 if (which == 'next' && (lnum > curlnum || lnum == curlnum && col > curcol))
676 || (which == 'prev' && (lnum < curlnum || lnum == curlnum
678 || (which == 'here' && (lnum == curlnum && col >= curcol))
680 # Skip over as many diags as "count" dictates
691 # If [count] exceeded the remaining diags
692 if which == 'next' && a_count > 1 && a_count != count
697 # If [count] exceeded the previous diags
698 if which == 'prev' && a_count > 1 && a_count != count
704 util.WarnMsg('No more diagnostics found on this line')
706 util.WarnMsg('No more diagnostics found')
710 # Disable the LSP diagnostics highlighting in all the buffers
711 export def DiagsHighlightDisable()
712 # turn off all diags highlight
713 opt.lspOptions.autoHighlightDiags = false
714 for binfo in getbufinfo({bufloaded: true})
715 RemoveDiagVisualsForBuffer(binfo.bufnr)
719 # Enable the LSP diagnostics highlighting
720 export def DiagsHighlightEnable()
721 opt.lspOptions.autoHighlightDiags = true
722 for binfo in getbufinfo({bufloaded: true})
723 DiagsRefresh(binfo.bufnr)
727 # vim: tabstop=8 shiftwidth=2 softtabstop=2