fix(vim): fix vim supporting

close https://github.com/SpaceVim/SpaceVim/issues/4628

autoload/SpaceVim/custom.vim

@@ -148,11 +148,12 @@ function! s:apply(config, type) abort
     let layers = get(a:config, 'layers', [])
     for layer in layers
       let enable = get(layer, 'enable', 1)
+      let name = get(layer, 'name', '')
       if (type(enable) == type('') && !eval(enable))
             \ || (type(enable) != type('') && !enable)
-        call SpaceVim#layers#disable(layer.name)
+        call SpaceVim#layers#disable(name)
       else
-        call SpaceVim#layers#load(layer.name, layer)
+        call SpaceVim#layers#load(name, layer)
       endif
     endfor
     let custom_plugins = get(a:config, 'custom_plugins', [])

autoload/SpaceVim/layers.vim

@@ -66,6 +66,8 @@ function! SpaceVim#layers#load(layer, ...) abort
   if a:layer ==# '-l'
     call s:list_layers()
     return
+  elseif empty(a:layer) || type(a:layer) !=# type('')
+    return
   endif
   let loadable = 1
   try

main.vim

@@ -6,6 +6,16 @@
 " License: GPLv3
 "=============================================================================
 
+" set default encoding to utf-8
+" Let Vim use utf-8 internally, because many scripts require this
+set encoding=utf-8
+scriptencoding utf-8
+
+" Enable nocompatible
+if &compatible
+  set nocompatible
+endif
+
 let g:_spacevim_root_dir = escape(fnamemodify(resolve(fnamemodify(expand('<sfile>'),
       \ ':p:h:gs?\\?'.((has('win16') || has('win32')
       \ || has('win64'))?'\':'/') . '?')), ':p:gs?[\\/]?/?'), ' ')
@@ -22,17 +32,7 @@ else
 endif
 call SpaceVim#logger#info('Loading SpaceVim from: ' . g:_spacevim_root_dir)
 
-" Enable nocompatible
 if has('vim_starting')
-  " set default encoding to utf-8
-
-  " Let Vim use utf-8 internally, because many scripts require this
-  set encoding=utf-8
-  scriptencoding utf-8
-  if &compatible
-    " compatible mode is not supported in SpaceVim
-    set nocompatible
-  endif
   " python host
   if !empty($PYTHON_HOST_PROG)
     let g:python_host_prog  = $PYTHON_HOST_PROG