spacevim/bundle/neosnippet-snippets/neosnippets/go.vim
JIe 2bb7059579
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init
2024-08-21 14:17:26 +08:00

50 lines
1.3 KiB
VimL

" From http://pocke.hatenablog.com/entry/2015/12/20/133445
function! g:NeosnippetSnippets_Goiferr() abort
let re_func = '\vfunc'
let re_type = '%(%([.A-Za-z0-9*]|\[|\]|%(%(struct)|%(interface)\{\}))+)'
let re_rcvr = '%(\s*\(\w+\s+' . re_type . '\))?'
let re_name = '%(\s*\w+)?'
let re_arg = '\(%(\w+%(\s+%(\.\.\.)?' . re_type . ')?\s*,?\s*)*\)'
let re_ret_v = '%(\w+)'
let re_ret = '%(\s*\(?(\s*\*?[a-zA-Z0-9_. ,]+)\)?\s*)?'
let re_ret_body = '%(' . re_ret_v . '|%(' . re_ret_v . '\s*' . re_type . ')|' . re_type . '\s*,?\s*)*'
let re_ret = '%(\s*\(?\s*(' . re_ret_body . ')\)?\s*)?'
let re = re_func . re_rcvr . re_name . re_arg . re_ret . '\{'
let lnum = line('.')
let ret = ""
while lnum > 0
let lnum -= 1
let ma = matchlist(getline(lnum), re)
if empty(ma)
continue
endif
let ret = ma[1]
break
endwhile
if ret =~ '\v^\s*$'
return '${1}'
endif
let rets = []
for t in split(ret, ',')
if t =~# '\v^\s*error\s*$'
let v = 'err'
elseif t =~# '\v^\s*string\s*$'
let v = '"${1\}"'
elseif t =~# '\v^\s*int\d*\s*$'
let v = '0'
elseif t =~# '\v^\s*bool\s*$'
let v = 'false'
else
let v = 'nil'
endif
call add(rets, v)
endfor
return '${1:' . join(rets, ", ") . '${0\}}'
endfunction