487 lines
14 KiB
VimL
487 lines
14 KiB
VimL
" Author: w0rp <devw0rp@gmail.com>
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" Description: Integration between linters and LSP/tsserver.
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" This code isn't loaded if a user never users LSP features or linters.
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" Associates LSP connection IDs with linter names.
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if !has_key(s:, 'lsp_linter_map')
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let s:lsp_linter_map = {}
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endif
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" A Dictionary to track one-shot handlers for custom LSP requests
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let s:custom_handlers_map = get(s:, 'custom_handlers_map', {})
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" Check if diagnostics for a particular linter should be ignored.
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function! s:ShouldIgnore(buffer, linter_name) abort
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" Ignore all diagnostics if LSP integration is disabled.
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if ale#Var(a:buffer, 'disable_lsp')
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return 1
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endif
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let l:config = ale#Var(a:buffer, 'linters_ignore')
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" Don't load code for ignoring diagnostics if there's nothing to ignore.
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if empty(l:config)
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return 0
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endif
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let l:filetype = getbufvar(a:buffer, '&filetype')
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let l:ignore_list = ale#engine#ignore#GetList(l:filetype, l:config)
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return index(l:ignore_list, a:linter_name) >= 0
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endfunction
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function! s:HandleLSPDiagnostics(conn_id, response) abort
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let l:linter_name = s:lsp_linter_map[a:conn_id]
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let l:filename = ale#path#FromURI(a:response.params.uri)
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let l:escaped_name = escape(
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\ fnameescape(l:filename),
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\ has('win32') ? '^' : '^,}]'
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\)
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let l:buffer = bufnr('^' . l:escaped_name . '$')
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let l:info = get(g:ale_buffer_info, l:buffer, {})
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if empty(l:info)
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return
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endif
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if s:ShouldIgnore(l:buffer, l:linter_name)
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return
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endif
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let l:loclist = ale#lsp#response#ReadDiagnostics(a:response)
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call ale#engine#HandleLoclist(l:linter_name, l:buffer, l:loclist, 0)
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endfunction
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function! s:HandleTSServerDiagnostics(response, error_type) abort
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let l:linter_name = 'tsserver'
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let l:escaped_name = escape(
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\ fnameescape(a:response.body.file),
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\ has('win32') ? '^' : '^,}]'
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\)
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let l:buffer = bufnr('^' . l:escaped_name . '$')
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let l:info = get(g:ale_buffer_info, l:buffer, {})
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if empty(l:info)
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return
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endif
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call ale#engine#MarkLinterInactive(l:info, l:linter_name)
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if s:ShouldIgnore(l:buffer, l:linter_name)
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return
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endif
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let l:thislist = ale#lsp#response#ReadTSServerDiagnostics(a:response)
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let l:no_changes = 0
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" tsserver sends syntax and semantic errors in separate messages, so we
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" have to collect the messages separately for each buffer and join them
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" back together again.
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if a:error_type is# 'syntax'
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if len(l:thislist) is 0 && len(get(l:info, 'syntax_loclist', [])) is 0
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let l:no_changes = 1
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endif
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let l:info.syntax_loclist = l:thislist
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else
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if len(l:thislist) is 0 && len(get(l:info, 'semantic_loclist', [])) is 0
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let l:no_changes = 1
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endif
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let l:info.semantic_loclist = l:thislist
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endif
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if l:no_changes
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return
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endif
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let l:loclist = get(l:info, 'semantic_loclist', [])
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\ + get(l:info, 'syntax_loclist', [])
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call ale#engine#HandleLoclist(l:linter_name, l:buffer, l:loclist, 0)
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endfunction
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function! s:HandleLSPErrorMessage(linter_name, response) abort
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if !g:ale_history_enabled || !g:ale_history_log_output
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return
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endif
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if empty(a:linter_name)
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return
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endif
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let l:message = ale#lsp#response#GetErrorMessage(a:response)
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if empty(l:message)
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return
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endif
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" This global variable is set here so we don't load the debugging.vim file
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" until someone uses :ALEInfo.
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let g:ale_lsp_error_messages = get(g:, 'ale_lsp_error_messages', {})
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if !has_key(g:ale_lsp_error_messages, a:linter_name)
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let g:ale_lsp_error_messages[a:linter_name] = []
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endif
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call add(g:ale_lsp_error_messages[a:linter_name], l:message)
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endfunction
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function! ale#lsp_linter#HandleLSPResponse(conn_id, response) abort
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let l:method = get(a:response, 'method', '')
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if get(a:response, 'jsonrpc', '') is# '2.0' && has_key(a:response, 'error')
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let l:linter_name = get(s:lsp_linter_map, a:conn_id, '')
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call s:HandleLSPErrorMessage(l:linter_name, a:response)
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elseif l:method is# 'textDocument/publishDiagnostics'
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call s:HandleLSPDiagnostics(a:conn_id, a:response)
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elseif l:method is# 'window/showMessage'
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call ale#lsp_window#HandleShowMessage(
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\ s:lsp_linter_map[a:conn_id],
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\ g:ale_lsp_show_message_format,
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\ a:response.params
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\)
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elseif get(a:response, 'type', '') is# 'event'
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\&& get(a:response, 'event', '') is# 'semanticDiag'
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call s:HandleTSServerDiagnostics(a:response, 'semantic')
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elseif get(a:response, 'type', '') is# 'event'
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\&& get(a:response, 'event', '') is# 'syntaxDiag'
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call s:HandleTSServerDiagnostics(a:response, 'syntax')
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endif
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endfunction
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function! ale#lsp_linter#GetOptions(buffer, linter) abort
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if has_key(a:linter, 'initialization_options_callback')
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return ale#util#GetFunction(a:linter.initialization_options_callback)(a:buffer)
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endif
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if has_key(a:linter, 'initialization_options')
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let l:Options = a:linter.initialization_options
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if type(l:Options) is v:t_func
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let l:Options = l:Options(a:buffer)
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endif
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return l:Options
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endif
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return {}
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endfunction
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function! ale#lsp_linter#GetConfig(buffer, linter) abort
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if has_key(a:linter, 'lsp_config_callback')
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return ale#util#GetFunction(a:linter.lsp_config_callback)(a:buffer)
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endif
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if has_key(a:linter, 'lsp_config')
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let l:Config = a:linter.lsp_config
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if type(l:Config) is v:t_func
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let l:Config = l:Config(a:buffer)
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endif
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return l:Config
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endif
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return {}
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endfunction
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function! ale#lsp_linter#FindProjectRoot(buffer, linter) abort
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let l:buffer_ale_root = getbufvar(a:buffer, 'ale_lsp_root', {})
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if type(l:buffer_ale_root) is v:t_string
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return l:buffer_ale_root
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endif
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" Try to get a buffer-local setting for the root
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if has_key(l:buffer_ale_root, a:linter.name)
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let l:Root = l:buffer_ale_root[a:linter.name]
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if type(l:Root) is v:t_func
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return l:Root(a:buffer)
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else
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return l:Root
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endif
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endif
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" Try to get a global setting for the root
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if has_key(g:ale_lsp_root, a:linter.name)
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let l:Root = g:ale_lsp_root[a:linter.name]
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if type(l:Root) is v:t_func
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return l:Root(a:buffer)
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else
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return l:Root
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endif
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endif
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" Fall back to the linter-specific configuration
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if has_key(a:linter, 'project_root')
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let l:Root = a:linter.project_root
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return type(l:Root) is v:t_func ? l:Root(a:buffer) : l:Root
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endif
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return ale#util#GetFunction(a:linter.project_root_callback)(a:buffer)
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endfunction
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" This function is accessible so tests can call it.
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function! ale#lsp_linter#OnInit(linter, details, Callback) abort
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let l:buffer = a:details.buffer
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let l:conn_id = a:details.connection_id
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let l:command = a:details.command
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let l:config = ale#lsp_linter#GetConfig(l:buffer, a:linter)
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let l:language_id = ale#linter#GetLanguage(l:buffer, a:linter)
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call ale#lsp#UpdateConfig(l:conn_id, l:buffer, l:config)
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if ale#lsp#OpenDocument(l:conn_id, l:buffer, l:language_id)
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if g:ale_history_enabled && !empty(l:command)
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call ale#history#Add(l:buffer, 'started', l:conn_id, l:command)
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endif
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endif
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" The change message needs to be sent for tsserver before doing anything.
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if a:linter.lsp is# 'tsserver'
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call ale#lsp#NotifyForChanges(l:conn_id, l:buffer)
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endif
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call a:Callback(a:linter, a:details)
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endfunction
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function! s:StartLSP(options, address, executable, command) abort
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let l:buffer = a:options.buffer
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let l:linter = a:options.linter
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let l:root = a:options.root
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let l:Callback = a:options.callback
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let l:init_options = ale#lsp_linter#GetOptions(l:buffer, l:linter)
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if l:linter.lsp is# 'socket'
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let l:conn_id = ale#lsp#Register(a:address, l:root, l:init_options)
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let l:ready = ale#lsp#ConnectToAddress(l:conn_id, a:address)
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let l:command = ''
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else
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let l:conn_id = ale#lsp#Register(a:executable, l:root, l:init_options)
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" tsserver behaves differently, so tell the LSP API that it is tsserver.
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if l:linter.lsp is# 'tsserver'
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call ale#lsp#MarkConnectionAsTsserver(l:conn_id)
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endif
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let l:command = ale#command#FormatCommand(
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\ l:buffer,
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\ a:executable,
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\ a:command,
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\ 0,
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\ v:false,
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\ [],
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\)[1]
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let l:command = ale#job#PrepareCommand(l:buffer, l:command)
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let l:ready = ale#lsp#StartProgram(l:conn_id, a:executable, l:command)
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endif
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if !l:ready
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if g:ale_history_enabled && !empty(a:command)
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call ale#history#Add(l:buffer, 'failed', l:conn_id, a:command)
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endif
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return 0
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endif
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let l:details = {
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\ 'buffer': l:buffer,
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\ 'connection_id': l:conn_id,
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\ 'command': l:command,
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\ 'project_root': l:root,
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\}
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call ale#lsp#OnInit(l:conn_id, {->
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\ ale#lsp_linter#OnInit(l:linter, l:details, l:Callback)
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\})
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return 1
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endfunction
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function! s:StartWithAddress(options, address) abort
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if ale#command#IsDeferred(a:address)
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let a:address.result_callback = {
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\ address -> s:StartWithAddress(a:options, address)
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\}
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return 1
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endif
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if empty(a:address)
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return 0
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endif
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return s:StartLSP(a:options, a:address, '', '')
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endfunction
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function! s:StartWithCommand(options, executable, command) abort
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if ale#command#IsDeferred(a:command)
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let a:command.result_callback = {
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\ command -> s:StartWithCommand(a:options, a:executable, command)
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\}
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return 1
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endif
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if empty(a:command)
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return 0
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endif
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return s:StartLSP(a:options, '', a:executable, a:command)
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endfunction
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function! s:StartIfExecutable(options, executable) abort
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if ale#command#IsDeferred(a:executable)
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let a:executable.result_callback = {
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\ executable -> s:StartIfExecutable(a:options, executable)
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\}
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return 1
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endif
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if !ale#engine#IsExecutable(a:options.buffer, a:executable)
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return 0
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endif
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let l:command = ale#linter#GetCommand(a:options.buffer, a:options.linter)
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return s:StartWithCommand(a:options, a:executable, l:command)
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endfunction
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" Given a buffer, an LSP linter, start up an LSP linter and get ready to
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" receive messages for the document.
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function! ale#lsp_linter#StartLSP(buffer, linter, Callback) abort
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let l:command = ''
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let l:address = ''
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let l:root = ale#lsp_linter#FindProjectRoot(a:buffer, a:linter)
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if empty(l:root) && a:linter.lsp isnot# 'tsserver'
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" If there's no project root, then we can't check files with LSP,
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" unless we are using tsserver, which doesn't use project roots.
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return 0
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endif
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let l:options = {
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\ 'buffer': a:buffer,
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\ 'linter': a:linter,
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\ 'callback': a:Callback,
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\ 'root': l:root,
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\}
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if a:linter.lsp is# 'socket'
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let l:address = ale#linter#GetAddress(a:buffer, a:linter)
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return s:StartWithAddress(l:options, l:address)
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endif
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let l:executable = ale#linter#GetExecutable(a:buffer, a:linter)
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return s:StartIfExecutable(l:options, l:executable)
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endfunction
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function! s:CheckWithLSP(linter, details) abort
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let l:buffer = a:details.buffer
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let l:info = get(g:ale_buffer_info, l:buffer)
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if empty(l:info)
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return
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endif
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let l:id = a:details.connection_id
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" Register a callback now for handling errors now.
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let l:Callback = function('ale#lsp_linter#HandleLSPResponse')
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call ale#lsp#RegisterCallback(l:id, l:Callback)
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" Remember the linter this connection is for.
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let s:lsp_linter_map[l:id] = a:linter.name
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if a:linter.lsp is# 'tsserver'
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let l:message = ale#lsp#tsserver_message#Geterr(l:buffer)
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let l:notified = ale#lsp#Send(l:id, l:message) != 0
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if l:notified
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call ale#engine#MarkLinterActive(l:info, a:linter)
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endif
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else
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let l:notified = ale#lsp#NotifyForChanges(l:id, l:buffer)
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endif
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" If this was a file save event, also notify the server of that.
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if a:linter.lsp isnot# 'tsserver'
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\&& getbufvar(l:buffer, 'ale_save_event_fired', 0)
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let l:save_message = ale#lsp#message#DidSave(l:buffer)
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let l:notified = ale#lsp#Send(l:id, l:save_message) != 0
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endif
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endfunction
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function! ale#lsp_linter#CheckWithLSP(buffer, linter) abort
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return ale#lsp_linter#StartLSP(a:buffer, a:linter, function('s:CheckWithLSP'))
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endfunction
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" Clear LSP linter data for the linting engine.
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function! ale#lsp_linter#ClearLSPData() abort
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let s:lsp_linter_map = {}
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let s:custom_handlers_map = {}
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endfunction
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" Just for tests.
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function! ale#lsp_linter#SetLSPLinterMap(replacement_map) abort
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let s:lsp_linter_map = a:replacement_map
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endfunction
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function! s:HandleLSPResponseToCustomRequests(conn_id, response) abort
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if has_key(a:response, 'id')
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\&& has_key(s:custom_handlers_map, a:response.id)
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let l:Handler = remove(s:custom_handlers_map, a:response.id)
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call l:Handler(a:response)
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endif
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endfunction
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function! s:OnReadyForCustomRequests(args, linter, lsp_details) abort
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let l:id = a:lsp_details.connection_id
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let l:request_id = ale#lsp#Send(l:id, a:args.message)
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if l:request_id > 0 && has_key(a:args, 'handler')
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let l:Callback = function('s:HandleLSPResponseToCustomRequests')
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call ale#lsp#RegisterCallback(l:id, l:Callback)
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let s:custom_handlers_map[l:request_id] = a:args.handler
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endif
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endfunction
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" Send a custom request to an LSP linter.
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function! ale#lsp_linter#SendRequest(buffer, linter_name, message, ...) abort
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let l:filetype = ale#linter#ResolveFiletype(getbufvar(a:buffer, '&filetype'))
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let l:linter_list = ale#linter#GetAll(l:filetype)
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let l:linter_list = filter(l:linter_list, {_, v -> v.name is# a:linter_name})
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if len(l:linter_list) < 1
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throw 'Linter "' . a:linter_name . '" not found!'
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endif
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let l:linter = l:linter_list[0]
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if empty(l:linter.lsp)
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throw 'Linter "' . a:linter_name . '" does not support LSP!'
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endif
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let l:is_notification = a:message[0]
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let l:callback_args = {'message': a:message}
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if !l:is_notification && a:0
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let l:callback_args.handler = a:1
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endif
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let l:Callback = function('s:OnReadyForCustomRequests', [l:callback_args])
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return ale#lsp_linter#StartLSP(a:buffer, l:linter, l:Callback)
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endfunction
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