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define and use s:flatten_twice instead of using s:flatten twice for performance

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itchyny
2016-03-23 14:13:25 +09:00
parent 997c4ba572
commit fe891c0ca3
1 changed files with 6 additions and 4 deletions
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10
autoload/lightline.vim
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@@ -2,7 +2,7 @@
" Filename: autoload/lightline.vim
" Author: itchyny
" License: MIT License
" Last Change: 2016/03/22 09:18:07.
" Last Change: 2016/03/23 14:12:05.
" =============================================================================
let s:save_cpo = &cpo
@@ -393,10 +393,12 @@ function! s:convert(name, index) abort
endif
endfunction
function! s:flatten(xss) abort
function! s:flatten_twice(xss) abort
let ys = []
for xs in a:xss
let ys += xs
for x in xs
let ys += x
endfor
endfor
return ys
endfunction
@@ -406,7 +408,7 @@ function! s:expand(components) abort
let expanded = []
let indices = []
let previndex = -1
let xs = s:flatten(s:flatten(map(deepcopy(a:components), 'map(v:val, "s:convert(v:val, string(" . v:key . "))")')))
let xs = s:flatten_twice(map(deepcopy(a:components), 'map(v:val, "s:convert(v:val, string(" . v:key . "))")'))
for [component, expand, index] in xs
if previndex != index
call add(indices, index)