patch 8.1.1639: changing an autoload name into a file name is inefficient commit https://github.com/vim/vim/commit/28fc247f8d94a1cfabbcf2691ca942bde96f6d2f Author: Bram Moolenaar <Bram@vim.org> Date: Fri Jul 5 22:14:16 2019 +0200 patch 8.1.1639: changing an autoload name into a file name is inefficient Problem: Changing an autoload name into a script file name is inefficient. Solution: Remember the last replaced #. (Ozaki Kiichi, closes https://github.com/vim/vim/issues/4618)

" Vim filetype plugin file
" Language:     WebAssembly
" Maintainer:   rhysd <lin90162@yahoo.co.jp>
" Last Change:  Jul 29, 2018
" For bugs, patches and license go to https://github.com/rhysd/vim-wasm

if exists("b:did_ftplugin")
    finish
endif
let b:did_ftplugin = 1

setlocal comments=s:(;,e:;),:;;
setlocal commentstring=(;%s;)
setlocal formatoptions-=t
setlocal iskeyword+=$,.,/

let b:undo_ftplugin = "setlocal comments< commentstring< formatoptions< iskeyword<"