LSP: remove obsolete "peek definition" code #12178

The method with the name 'textDocument/peekDefinition' is not part of
the official language server protocol specification. Therefore no
language server can/will support this. Thereby all related code and
documentation as been removed.

1 files changed, 0 insertions, 15 deletions

diff --git a/runtime/lua/vim/lsp/callbacks.lua b/runtime/lua/vim/lsp/callbacks.lua
index 9c30085f37..bd2cbf1ea7 100644
--- a/runtime/lua/vim/lsp/callbacks.lua
+++ b/runtime/lua/vim/lsp/callbacks.lua
@@ -151,21 +151,6 @@ M['textDocument/signatureHelp'] = function(_, method, result)
   end)
 end
 
-M['textDocument/peekDefinition'] = function(_, _, result, _)
-  if not (result and result[1]) then return end
-  local loc = result[1]
-  local bufnr = vim.uri_to_bufnr(loc.uri) or error("not found: "..tostring(loc.uri))
-  local start = loc.range.start
-  local finish = loc.range["end"]
-  util.open_floating_peek_preview(bufnr, start, finish, { offset_x = 1 })
-  local headbuf = util.open_floating_preview({"Peek:"}, nil, {
-    offset_y = -(finish.line - start.line);
-    width = finish.character - start.character + 2;
-  })
-  -- TODO(ashkan) change highlight group?
-  api.nvim_buf_add_highlight(headbuf, -1, 'Keyword', 0, -1)
-end
-
 M['textDocument/documentHighlight'] = function(_, _, result, _)
   if not result then return end
   local bufnr = api.nvim_get_current_buf()