#187 vim.lsp.buf.format missing in some version of neovim

lua/go/format.lua

@@ -18,6 +18,12 @@ local goimport_args = _GO_NVIM_CFG.goimport_args or {
   "--base-formatter=goimports",
 }
 
+if vim.lsp.buf.format == nil then
+  vim.notify('the go.lsp.buf.format is not available, some feature is missing if you are running old version of neovim (<0.7.0)', vim.lsp.log_levels.WARN)
+  -- neovim < 0.7 only
+  require('go.lsp')  -- this set default value of format
+end
+
 local run = function(fmtargs, bufnr, cmd)
   log(fmtargs, bufnr, cmd)
   bufnr = bufnr or 0

lua/go/lsp.lua

@@ -9,13 +9,13 @@ end
 if vim.lsp.buf.format == nil then
   -- neovim < 0.7 only
   vim.lsp.buf.format = function(options)
-  if options.async then
-    vim.lsp.buf.formatting()
-  else
-    vim.lsp.buf.formatting_sync()
+    if options.async then
+      vim.lsp.buf.formatting()
+    else
+      vim.lsp.buf.formatting_sync()
+    end
   end
 end
-end
 
 local codelens_enabled = false
 

lua/go/reftool.lua

@@ -25,9 +25,7 @@ local function insert_result(result)
   vim.cmd("write")
   -- format(#inserts, curpos)
   vfn.setpos(".", curpos)
-  vim.defer_fn(function()
-    vim.lsp.buf.format({ async = _GO_NVIM_CFG.lsp_fmt_async })
-  end, 300)
+  require('go.format').gofmt()
 end
 
 -- can only be fillstruct and fillswitch