added :LspTypeDefinition (#165)

Author: prabirshrestha

README.md

@@ -62,6 +62,7 @@ Refer to docs on configuring omnifunc or [asyncomplete.vim](https://github.com/p
 |`:LspImplementation` | Show implementation of interface |
 |`:LspReferences`| Find references |
 |`:LspRename`| Rename symbol |
+|`:LspTypeDefinition`| Go to type definition |
 |`:LspWorkspaceSymbol`| Search/Show workspace symbol |
 
 ### Diagnostics

autoload/lsp/capabilities.vim

@@ -39,6 +39,10 @@ function! lsp#capabilities#has_implementation_provider(server_name) abort
     return s:has_bool_provider(a:server_name, 'implementationProvider')
 endfunction
 
+function! lsp#capabilities#has_type_definition_provider(server_name) abort
+    return s:has_bool_provider(a:server_name, 'typeDefinitionProvider')
+endfunction
+
 " [supports_did_save (boolean), { 'includeText': boolean }]
 function! lsp#capabilities#get_text_document_save_registration_options(server_name) abort
     let l:capabilities = lsp#get_server_capabilities(a:server_name)

autoload/lsp/ui/vim.vim

@@ -28,6 +28,30 @@ function! lsp#ui#vim#implementation() abort
     echo 'Retrieving implementation ...'
 endfunction
 
+function! lsp#ui#vim#type_definition() abort
+    let l:servers = filter(lsp#get_whitelisted_servers(), 'lsp#capabilities#has_type_definition_provider(v:val)')
+    let s:last_req_id = s:last_req_id + 1
+    call setqflist([])
+
+    if len(l:servers) == 0
+        call s:not_supported('Retrieving type definition')
+        return
+    endif
+    let l:ctx = { 'counter': len(l:servers), 'list':[], 'last_req_id': s:last_req_id, 'jump_if_one': 1 }
+    for l:server in l:servers
+        call lsp#send_request(l:server, {
+            \ 'method': 'textDocument/typeDefinition',
+            \ 'params': {
+            \   'textDocument': lsp#get_text_document_identifier(),
+            \   'position': lsp#get_position(),
+            \ },
+            \ 'on_notification': function('s:handle_location', [l:ctx, l:server, 'type definition']),
+            \ })
+    endfor
+
+    echo 'Retrieving type definition ...'
+endfunction
+
 function! lsp#ui#vim#definition() abort
     let l:servers = filter(lsp#get_whitelisted_servers(), 'lsp#capabilities#has_definition_provider(v:val)')
     let s:last_req_id = s:last_req_id + 1

doc/vim-lsp.txt

@@ -29,6 +29,7 @@ CONTENTS                                                  *vim-lsp-contents*
       LspImplementation           |LspImplementation|
       LspReferences               |LspReferences|
       LspRename                   |LspRename|
+      LspTypeDefinition           |LspTypeDefinition|
       LspWorkspaceSymbols         |LspWorkspaceSymbols|
     Autocomplete               |vim-lsp-autocomplete|
       omnifunc                    |vim-lsp-omnifunc|
@@ -313,7 +314,7 @@ Gets the hover information and displays it in the |preview-window|.
    configure |g:lsp_preview_keep_focus|.
 
 
-LspNextError						 *LspNextError*
+LspNextError						     *LspNextError*
 
 Jump to Next err diagnostics
 
@@ -333,11 +334,15 @@ LspRename						         *LspRename*
 
 Rename the symbol.
 
+LspTypeDefinition				  	 *LspTypeDefinition*
+
+Go to the type definition.
+
 LspWorkspaceSymbols				       *LspWorkspaceSymbols*
 
 Search and show workspace symbols.
 
-LspStatus                     *LspStatus*
+LspStatus                                                        *LspStatus*
 
 Prints the status of all registered servers.
 

plugin/lsp.vim

@@ -34,4 +34,5 @@ command! LspWorkspaceSymbol call lsp#ui#vim#workspace_symbol()
 command! LspDocumentFormat call lsp#ui#vim#document_format()
 command! -range LspDocumentRangeFormat call lsp#ui#vim#document_range_format()
 command! LspImplementation call lsp#ui#vim#implementation()
+command! LspTypeDefinition call lsp#ui#vim#type_definition()
 command! -nargs=0 LspStatus echo lsp#get_server_status()