[vim/vim] Conflict with vim-plug (Issue #9580)

[xvim64]

Steps to reproduce

run gvim.exe

Expected behaviour

Load vim-plug without conflict

Version of Vim

8.2.4167

Environment

Windows 10 64-bit 21H2

Logs and stack traces

Error detected while processing C:\home\.vimrc[2806]..C:\home\.vim\vim-plug\plug.vim:
line  709:
E129: Function name required
line  710:
E121: Undefined variable: a:0
line  711:
E133: :return not inside a function
Error detected while processing C:\home\.vimrc[2806]..C:\home\.vim\vim-plug\plug.vim[726]..C:\home\.vimrc[2806]..C:\home\.vim\vim-plug\plug.vim:
line  725:
E133: :return not inside a function


// .vimrc[2806]
2806: source ~/.vim/vim-plug/plug.vim
2807: call plug#begin('~/.vim/plugged')
2808:    Plug 'vim-airline/vim-airline'
2809:    Plug 'vim-airline/vim-airline-themes'
2810:    Plug 'neoclide/coc.nvim', {'branch': 'release'}
2811: call plug#end()

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[lacygoill]

This is a regression introduced in patch 8.2.4163. It will be fixed.

In the meantime, either downgrade your Vim to an older version, or apply this patch to your autoload/plug.vim script:

diff --git a/plug.vim b/plug.vim
index 8a195d3..91ba1a7 100644
--- a/plug.vim
+++ b/plug.vim
@@ -263,7 +263,7 @@ function! plug#begin(...)
 endfunction
 
 function! s:define_commands()
-  command! -nargs=+ -bar Plug call plug#(<args>)
+  command! -nargs=+ -bar Plug call plug#_(<args>)
   if !executable('git')
     return s:err('`git` executable not found. Most commands will not be available. To suppress this message, prepend `silent!` to `call plug#begin(...)`.')
   endif
@@ -706,7 +706,7 @@ function! s:lod_map(map, names, with_prefix, prefix)
   call feedkeys(substitute(a:map, '^<Plug>', "\<Plug>", '') . extra)
 endfunction
 
-function! plug#(repo, ...)
+function! plug#_(repo, ...)
   if a:0 > 1
     return s:err('Invalid number of arguments (1..2)')
   endif

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[Ni Va]

Conflict confirmed with vimPlug,  [ Windows 10, build ming gvim 8.2 patch 4163

[Bram Moolenaar]

fixed with patch 8.2.4167. It also adds a test for using an empty name in legacy script.

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[Bram Moolenaar]

Closed #9580.

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[Ni Va]

Thank you.

[K.Takata]

fixed with patch 8.2.4167.

Maybe a mistake of 8.2.4168?

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[lacygoill]

Yes, indeed, the fix to restore autoload functions with no name was implemented in patch 8.2.4168.

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[Bram Moolenaar]

Only off by 0.024 % :-)

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