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tagbar: only try loading the tagbar extension once

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commit 232b641 did unfortunately disable tagbar completely, since
exists("*func") does not autoload the function.

So this time, try explicitly calling the function once, and if it does
not exists, it should be disabled and not cause any further errors.

closes #1555
This commit is contained in:
Christian Brabandt 2017-09-01 09:08:22 +02:00
parent f0a508b121
commit 9e3fcc4cdb
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GPG Key ID: F3F92DA383FDDE09
1 changed files with 11 additions and 0 deletions
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11
autoload/airline/extensions/tagbar.vim
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@ -9,6 +9,7 @@ endif
let s:flags = get(g:, 'airline#extensions#tagbar#flags', '')
let s:spc = g:airline_symbols.space
let s:init=0
" Arguments: current, sort, fname
function! airline#extensions#tagbar#get_status(...)
@ -29,6 +30,16 @@ let s:airline_tagbar_last_lookup_time = 0
let s:airline_tagbar_last_lookup_val = ''
function! airline#extensions#tagbar#currenttag()
if get(w:, 'airline_active', 0)
if !s:init
try
" try to load the plugin, if filetypes are disabled,
" this will cause an error, so try only once
let a=tagbar#currenttag('%', '', '')
catch
endtry
unlet! a
let s:init=1
endif
" function tagbar#currenttag does not exist, if filetype is not enabled
if s:airline_tagbar_last_lookup_time != localtime() && exists("*tagbar#currenttag")
let s:airline_tagbar_last_lookup_val = tagbar#currenttag('%s', '', s:flags)