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if !polyglot#util#IsEnabled('vala', expand('<sfile>:p'))
finish
endif
" Vim indent file
" Language: Vala
" Author: Adrià Arrufat <adria.arrufat@protonmail.ch>
" Last Change: 2016 Dec 04
" Only load this indent file when no other was loaded.
if exists("b:did_indent")
finish
endif
let b:did_indent = 1
setlocal cindent
setlocal cinoptions=L0,(0,Ws,J1,j1
setlocal cinkeys=0{,0},!^F,o,O,0[,0]
" Some preliminary settings
setlocal nolisp " Make sure lisp indenting doesn't supersede us
setlocal autoindent " indentexpr isn't much help otherwise
setlocal indentexpr=GetValaIndent(v:lnum)
" Only define the function once.
if exists("*GetValaIndent")
finish
endif
" Come here when loading the script the first time.
function GetValaIndent(lnum)
" Hit the start of the file, use zero indent.
if a:lnum == 0
return 0
endif
" Starting assumption: cindent (called at the end) will do it right
" normally. We just want to fix up a few cases.
let line = getline(a:lnum)
" Search backwards for the previous non-empty line.
let prevlinenum = prevnonblank(a:lnum - 1)
let prevline = getline(prevlinenum)
while prevlinenum > 1 && prevline !~ '[^[:blank:]]'
let prevlinenum = prevnonblank(prevlinenum - 1)
let prevline = s:getline(prevlinenum)
endwhile
" If previous line contains a code attribute (e.g. [CCode (...)])
" don't increase the indentation
if prevline =~? '^\s*\[[A-Za-z]' && prevline =~? '\]$'
return indent(prevlinenum)
endif
" cindent gets lambda body wrong, as it treats the comma as indicating an
" unfinished statement (fix borrowed from rust.vim indent file):
"
" list.foreach ((entry) => {
" stdout.puts (entry);
" stdout.putc ('\n');
" if (entry == null) {
" print ("empty entry\n");
" }
" });
"
" and we want it to be:
" list.foreach ((entry) => {
" stdout.puts (entry);
" stdout.putc ('\n');
" if (entry == null) {
" print ("empty entry\n");
" }
" });
if prevline[len(prevline) - 1] == ","
\ && line !~ '^\s*[\[\]{}]'
\ && prevline !~ '([^()]\+,$'
\ && line !~ '^\s*\S\+\s*=>'
return indent(prevlinenum)
endif
" Fall back on cindent, which does it mostly right
return cindent(a:lnum)
endfunction
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