lsp_with_nick.lua

function RenameWithQuickfix()
  local position_params = vim.lsp.util.make_position_params()
  local new_name = vim.fn.input "New Name > "

  position_params.newName = new_name

  vim.lsp.buf_request(0, "textDocument/rename", position_params, function(err, method, result, ...)
    -- You can uncomment this to see what the result looks like.
    if false then
      print(vim.inspect(result))
    end
    vim.lsp.handlers["textDocument/rename"](err, method, result, ...)

    local entries = {}
    if result.changes then
      for uri, edits in pairs(result.changes) do
        local bufnr = vim.uri_to_bufnr(uri)

        for _, edit in ipairs(edits) do
          local start_line = edit.range.start.line + 1
          local line = vim.api.nvim_buf_get_lines(bufnr, start_line - 1, start_line, false)[1]

          table.insert(entries, {
            bufnr = bufnr,
            lnum = start_line,
            col = edit.range.start.character + 1,
            text = line,
          })
        end
      end
    end

    vim.fn.setqflist(entries, "r")
  end)
end

-- This was an outline of what you could do w/ lsp and not opening .d.ts files when they are
-- the only definition.
function ExampleTS()
  local position_params = vim.lsp.util.make_position_params()
  vim.lsp.buf_request(0, "textDocument/definition", position_params, function(err, method, result, ...)
    -- local new_result = vim.tbl_filter(function(v)
    --   return not string.find(v.uri, ".d.ts", 1, true)
    -- end, result)

    if #result == 1 and string.find(result[1].uri, ".d.ts", 1, true) then
      -- Open nice little floaty window at cursor w/ that file in it
      local bufnr = open_or_get_bufnr(...)
      vim.api.nvim_open_win(bufnr, ...)
      return
    end

    vim.lsp.handlers["textDocument/definition"](err, method, result, ...)
  end)
end