Check LSP capabilities before using them

This commit is contained in:
w0rp
2018-07-22 19:04:45 +01:00
parent 899b61c5cc
commit 6dc737cda1
13 changed files with 389 additions and 231 deletions

View File

@@ -422,54 +422,60 @@ endfunction
function! s:GetLSPCompletions(linter) abort
let l:buffer = bufnr('')
let l:Callback = a:linter.lsp is# 'tsserver'
\ ? function('ale#completion#HandleTSServerResponse')
\ : function('ale#completion#HandleLSPResponse')
let l:lsp_details = ale#lsp_linter#StartLSP(l:buffer, a:linter, l:Callback)
let l:lsp_details = ale#lsp_linter#StartLSP(l:buffer, a:linter)
if empty(l:lsp_details)
return 0
endif
let l:id = l:lsp_details.connection_id
let l:root = l:lsp_details.project_root
if a:linter.lsp is# 'tsserver'
let l:message = ale#lsp#tsserver_message#Completions(
\ l:buffer,
\ b:ale_completion_info.line,
\ b:ale_completion_info.column,
\ b:ale_completion_info.prefix,
\)
else
" Send a message saying the buffer has changed first, otherwise
" completions won't know what text is nearby.
call ale#lsp#NotifyForChanges(l:lsp_details)
function! OnReady(...) abort closure
let l:Callback = a:linter.lsp is# 'tsserver'
\ ? function('ale#completion#HandleTSServerResponse')
\ : function('ale#completion#HandleLSPResponse')
call ale#lsp#RegisterCallback(l:id, l:Callback)
" For LSP completions, we need to clamp the column to the length of
" the line. python-language-server and perhaps others do not implement
" this correctly.
let l:message = ale#lsp#message#Completion(
\ l:buffer,
\ b:ale_completion_info.line,
\ min([
\ b:ale_completion_info.line_length,
\ b:ale_completion_info.column,
\ ]),
\ ale#completion#GetTriggerCharacter(&filetype, b:ale_completion_info.prefix),
\)
endif
if a:linter.lsp is# 'tsserver'
let l:message = ale#lsp#tsserver_message#Completions(
\ l:buffer,
\ b:ale_completion_info.line,
\ b:ale_completion_info.column,
\ b:ale_completion_info.prefix,
\)
else
" Send a message saying the buffer has changed first, otherwise
" completions won't know what text is nearby.
call ale#lsp#NotifyForChanges(l:id, l:root, l:buffer)
let l:request_id = ale#lsp#Send(l:id, l:message, l:lsp_details.project_root)
if l:request_id
let b:ale_completion_info.conn_id = l:id
let b:ale_completion_info.request_id = l:request_id
if has_key(a:linter, 'completion_filter')
let b:ale_completion_info.completion_filter = a:linter.completion_filter
" For LSP completions, we need to clamp the column to the length of
" the line. python-language-server and perhaps others do not implement
" this correctly.
let l:message = ale#lsp#message#Completion(
\ l:buffer,
\ b:ale_completion_info.line,
\ min([
\ b:ale_completion_info.line_length,
\ b:ale_completion_info.column,
\ ]),
\ ale#completion#GetTriggerCharacter(&filetype, b:ale_completion_info.prefix),
\)
endif
endif
let l:request_id = ale#lsp#Send(l:id, l:message, l:lsp_details.project_root)
if l:request_id
let b:ale_completion_info.conn_id = l:id
let b:ale_completion_info.request_id = l:request_id
if has_key(a:linter, 'completion_filter')
let b:ale_completion_info.completion_filter = a:linter.completion_filter
endif
endif
endfunction
call ale#lsp#WaitForCapability(l:id, l:root, 'completion', function('OnReady'))
endfunction
function! ale#completion#GetCompletions() abort