" ___vital___
" NOTE: lines between '" ___vital___' is generated by :Vitalize.
" Do not mofidify the code nor insert new lines before '" ___vital___'
function! s:_SID() abort
  return matchstr(expand('<sfile>'), '<SNR>\zs\d\+\ze__SID$')
endfunction
execute join(['function! vital#_over#Unlocker#Rocker#HolderBase#import() abort', printf("return map({'make': '', 'has_concept': ''}, \"vital#_over#function('<SNR>%s_' . v:key)\")", s:_SID()), 'endfunction'], "\n")
delfunction s:_SID
" ___vital___
scriptencoding utf-8
let s:save_cpo = &cpo
set cpo&vim


let s:locker = {}
function! s:locker.lock()
	let self.__old = self.get()
	return self
endfunction


function! s:locker.unlock()
	if !has_key(self, "__old")
		return -1
	endif
	call self.set(self.__old)
	unlet self.__old
endfunction


function! s:locker.relock()
	call self.unlock()
	call self.lock()
endfunction


function! s:has_concept(obj)
	return type(a:obj) == type({})
\		&& type(get(a:obj, "get", "")) == type(function("tr"))
\		&& type(get(a:obj, "set", "")) == type(function("tr"))
endfunction


function! s:make(derived)
	if !s:has_concept(a:derived)
		throw "vital-unlocker Unlocker.Rocker.HolderBase.make() : Don't has locker concept."
	endif
	let result = extend(deepcopy(s:locker), a:derived)
	return result
endfunction



let &cpo = s:save_cpo
unlet s:save_cpo