diff --git a/autoload/SpaceVim/default.vim b/autoload/SpaceVim/default.vim
index ea6551255..db662e66a 100644
--- a/autoload/SpaceVim/default.vim
+++ b/autoload/SpaceVim/default.vim
@@ -365,6 +365,7 @@ function! SpaceVim#default#SetMappings() abort
     call SpaceVim#mapping#def('nnoremap <silent>', '<Leader>sg', ':vsplit<CR>:wincmd p<CR>:e#<CR>',
                 \'Open previous buffer in vsplit window' , 'vsplit|wincmd p|e#')
     call SpaceVim#mapping#def('nnoremap <silent>', 'gf', ':call zvim#gf()<CR>', 'Jump to a file under cursor', '')
+    call SpaceVim#mapping#def('nnoremap <silent>', 'gd', ':call SpaceVim#mapping#gd()<CR>', 'Goto declaration', '')
 endfunction
 
 fu! s:tobur(num) abort
diff --git a/autoload/SpaceVim/layers/autocomplete.vim b/autoload/SpaceVim/layers/autocomplete.vim
index 6047cebb4..b7a470973 100644
--- a/autoload/SpaceVim/layers/autocomplete.vim
+++ b/autoload/SpaceVim/layers/autocomplete.vim
@@ -22,7 +22,6 @@ function! SpaceVim#layers#autocomplete#plugins() abort
                 \ ['honza/vim-snippets', {'on_i' : 1, 'loadconf_before' : 1}],
                 \ ['Shougo/neco-syntax',           { 'on_i' : 1}],
                 \ ['ujihisa/neco-look',            { 'on_i' : 1}],
-                \ ['Shougo/neco-vim',              { 'on_i' : 1, 'loadconf_before' : 1}],
                 \ ['Shougo/context_filetype.vim',  { 'on_i' : 1}],
                 \ ['Shougo/neoinclude.vim',        { 'on_i' : 1}],
                 \ ['Shougo/neosnippet-snippets',   { 'merged' : 0}],
diff --git a/autoload/SpaceVim/layers/git.vim b/autoload/SpaceVim/layers/git.vim
index 854f0cc0c..d16df70fa 100644
--- a/autoload/SpaceVim/layers/git.vim
+++ b/autoload/SpaceVim/layers/git.vim
@@ -19,4 +19,8 @@ function! SpaceVim#layers#git#config() abort
     nmap <leader>hk <plug>(signify-prev-hunk)
     nmap <leader>hJ 9999<leader>gj
     nmap <leader>hK 9999<leader>gk
+    augroup spacevim_layer_git
+        autocmd!
+        autocmd FileType diff nnoremap <buffer><silent> q :bd!<CR>
+    augroup END
 endfunction
diff --git a/autoload/SpaceVim/layers/lang/go.vim b/autoload/SpaceVim/layers/lang/go.vim
index 84f4515b2..05f2c00a1 100644
--- a/autoload/SpaceVim/layers/lang/go.vim
+++ b/autoload/SpaceVim/layers/lang/go.vim
@@ -1,3 +1,22 @@
+""
+" @section lang#go, layer-lang-go
+" @parentsection layers
+" This layer support go development, include code completion and syntax check.
+" @subsection mappings
+" >
+"   mode            key             function
+"   normal          <leader>gi      go implements
+"   normal          <leader>gf      go info
+"   normal          <leader>ge      go rename
+"   normal          <leader>gr      go run
+"   normal          <leader>gb      go build
+"   normal          <leader>gt      go test
+"   normal          <leader>gd      go doc
+"   normal          <leader>gv      go doc vertical
+"   normal          <leader>gco     go coverage
+" <
+
+
 function! SpaceVim#layers#lang#go#plugins() abort
     let plugins = [['fatih/vim-go', { 'on_ft' : 'go', 'loadconf_before' : 1}]]
     if has('nvim')
@@ -16,18 +35,18 @@ function! SpaceVim#layers#lang#go#config() abort
     let g:go_fmt_command = 'goimports'
     let g:syntastic_go_checkers = ['golint', 'govet', 'errcheck']
     let g:syntastic_mode_map = { 'mode': 'active', 'passive_filetypes': ['go'] }
-    let g:go_snippet_engine = "neosnippet"
+    let g:go_snippet_engine = 'neosnippet'
 
     augroup SpaceVim_go
         au!
-        au FileType go nmap <Buffer><Leader>s <Plug>(go-implements)
-        au FileType go nmap <Buffer><Leader>i <Plug>(go-info)
-        au FileType go nmap <Buffer><Leader>e <Plug>(go-rename)
-        au FileType go nmap <Buffer><Leader>r <Plug>(go-run)
-        au FileType go nmap <Buffer><Leader>b <Plug>(go-build)
-        au FileType go nmap <Buffer><Leader>t <Plug>(go-test)
-        au FileType go nmap <Buffer><Leader>gd <Plug>(go-doc)
-        au FileType go nmap <Buffer><Leader>gv <Plug>(go-doc-vertical)
-        au FileType go nmap <Buffer><Leader>co <Plug>(go-coverage)
+        au FileType go nmap <Buffer><silent><Leader>s <Plug>(go-implements)
+        au FileType go nmap <Buffer><silent><Leader>i <Plug>(go-info)
+        au FileType go nmap <Buffer><silent><Leader>e <Plug>(go-rename)
+        au FileType go nmap <Buffer><silent><Leader>r <Plug>(go-run)
+        au FileType go nmap <Buffer><silent><Leader>b <Plug>(go-build)
+        au FileType go nmap <Buffer><silent><Leader>t <Plug>(go-test)
+        au FileType go nmap <Buffer><silent><Leader>gd <Plug>(go-doc)
+        au FileType go nmap <Buffer><silent><Leader>gv <Plug>(go-doc-vertical)
+        au FileType go nmap <Buffer><silent><Leader>co <Plug>(go-coverage)
     augroup END
 endfunction
diff --git a/autoload/SpaceVim/layers/lang/vim.vim b/autoload/SpaceVim/layers/lang/vim.vim
new file mode 100644
index 000000000..1aa54ca52
--- /dev/null
+++ b/autoload/SpaceVim/layers/lang/vim.vim
@@ -0,0 +1,12 @@
+function! SpaceVim#layers#lang#vim#plugins() abort
+    let plugins = []
+    call add(plugins,['tweekmonster/exception.vim'])
+    call add(plugins,['mhinz/vim-lookup'])
+    call add(plugins,['Shougo/neco-vim',              { 'on_i' : 1, 'loadconf_before' : 1}])
+    call add(plugins,['tweekmonster/helpful.vim',      {'on_cmd': 'HelpfulVersion'}])
+    return plugins
+endfunction
+
+function! SpaceVim#layers#lang#vim#config() abort
+    call SpaceVim#mapping#gd#add('vim','lookup#lookup')
+endfunction
diff --git a/autoload/SpaceVim/layers/tools.vim b/autoload/SpaceVim/layers/tools.vim
index 37d0af92d..0612a5bb4 100644
--- a/autoload/SpaceVim/layers/tools.vim
+++ b/autoload/SpaceVim/layers/tools.vim
@@ -6,7 +6,6 @@ function! SpaceVim#layers#tools#plugins() abort
                 \ ['junegunn/goyo.vim',         { 'on_cmd' : 'Goyo', 'loadconf' : 1}],
                 \ ['Yggdroot/LeaderF', {'merged' : 0}],
                 \ ['google/vim-searchindex'],
-                \ ['tweekmonster/helpful.vim',      {'on_cmd': 'HelpfulVersion'}],
                 \ ['simnalamburt/vim-mundo',        { 'on_cmd' : 'MundoToggle'}],
                 \ ['wsdjeg/MarkDown.pl',            { 'on_cmd' : 'MarkDownPreview'}],
                 \ ['mhinz/vim-grepper' , { 'on_cmd' : 'Grepper', 'loadconf' : 1} ],
diff --git a/autoload/SpaceVim/mapping.vim b/autoload/SpaceVim/mapping.vim
index 810bacd8f..df4c71478 100644
--- a/autoload/SpaceVim/mapping.vim
+++ b/autoload/SpaceVim/mapping.vim
@@ -56,3 +56,11 @@ function! SpaceVim#mapping#enter() abort
         return "\<Enter>"
     endif
 endfunction
+
+function! SpaceVim#mapping#gd() abort
+    if !empty(SpaceVim#mapping#gd#get())
+        call call(SpaceVim#mapping#gd#get(), [])
+    else
+        normal! gd
+    endif
+endfunction
diff --git a/autoload/SpaceVim/mapping/gd.vim b/autoload/SpaceVim/mapping/gd.vim
new file mode 100644
index 000000000..72c39f0ec
--- /dev/null
+++ b/autoload/SpaceVim/mapping/gd.vim
@@ -0,0 +1,8 @@
+let s:gd = {}
+function! SpaceVim#mapping#gd#add(ft, func) abort
+    call extend(s:gd,{a:ft : a:func})
+endfunction
+
+function! SpaceVim#mapping#gd#get() abort
+    return get(s:gd, &filetype, '')
+endfunction
diff --git a/autoload/SpaceVim/options.vim b/autoload/SpaceVim/options.vim
index 3a6a2cf2e..2c04827cc 100644
--- a/autoload/SpaceVim/options.vim
+++ b/autoload/SpaceVim/options.vim
@@ -1,11 +1,25 @@
 function! SpaceVim#options#list() abort
     let list = []
-    if has('patch-7.4.2010')
+    if has('patch-7.4.2010') && 0
         for var in getcompletion('g:spacevim_','var')
             call add(list, var . ' = ' . string(get(g:, var[2:] , '')))
         endfor
     else
-        call add(list, 'your vim is too old, getcompletion() need patch7-4-2010')
+        redraw
+        for var in filter(map(s:execute('let g:'), "matchstr(v:val, '\\S\\+')"), "v:val =~# '^spacevim_'")
+            call add(list,'g:' . var . ' = ' . string(get(g:, var , '')))
+        endfor
     endif
     return list
 endfunction
+
+function! s:execute(cmd) abort
+  if exists('*execute')
+    return split(execute(a:cmd), "\n")
+  endif
+
+  redir => output
+  execute a:cmd
+  redir END
+  return split(output, "\n")
+endfunction
diff --git a/doc/SpaceVim.txt b/doc/SpaceVim.txt
index 52262e104..02b49c298 100644
--- a/doc/SpaceVim.txt
+++ b/doc/SpaceVim.txt
@@ -10,10 +10,11 @@ CONTENTS                                                   *SpaceVim-contents*
       1. autocomplete..................................|SpaceVim-autocomplete|
       2. colorscheme....................................|SpaceVim-colorscheme|
       3. lang#c........................................|SpaceVim-layer-lang-c|
-      4. lang#java..................................|SpaceVim-layer-lang-java|
-      5. lang#php....................................|SpaceVim-layer-lang-php|
-      6. lang#rust..................................|SpaceVim-layer-lang-rust|
-      7. lang#xml....................................|SpaceVim-layer-lang-xml|
+      4. lang#go......................................|SpaceVim-layer-lang-go|
+      5. lang#java..................................|SpaceVim-layer-lang-java|
+      6. lang#php....................................|SpaceVim-layer-lang-php|
+      7. lang#rust..................................|SpaceVim-layer-lang-rust|
+      8. lang#xml....................................|SpaceVim-layer-lang-xml|
   5. FAQ........................................................|SpaceVim-faq|
 
 ==============================================================================
@@ -426,6 +427,25 @@ get completions within   conditional preprocessor blocks. The default is 50,
 setting it to 0 disables this feature.
 
 
+==============================================================================
+LANG#GO                                               *SpaceVim-layer-lang-go*
+
+This layer support go development, include code completion and syntax check.
+MAPPINGS
+
+>
+  mode            key             function
+  normal          <leader>gi      go implements
+  normal          <leader>gf      go info
+  normal          <leader>ge      go rename
+  normal          <leader>gr      go run
+  normal          <leader>gb      go build
+  normal          <leader>gt      go test
+  normal          <leader>gd      go doc
+  normal          <leader>gv      go doc vertical
+  normal          <leader>gco     go coverage
+<
+
 ==============================================================================
 LANG#JAVA                                           *SpaceVim-layer-lang-java*