if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'rust') == -1
" Language: Rust
" Description: Vim ftplugin for Rust
" Maintainer: Chris Morgan <me@chrismorgan.info>
" Maintainer: Kevin Ballard <kevin@sb.org>
" Last Change: June 08, 2016
" For bugs, patches and license go to https://github.com/rust-lang/rust.vim
if exists("b:did_ftplugin")
finish
endif
let b:did_ftplugin = 1
let s:save_cpo = &cpo
set cpo&vim
augroup rust.vim
autocmd!
if get(b:, 'current_compiler', '') ==# ''
if strlen(findfile('Cargo.toml', '.;')) > 0
compiler cargo
else
compiler rustc
endif
endif
" Variables {{{1
" The rust source code at present seems to typically omit a leader on /*!
" comments, so we'll use that as our default, but make it easy to switch.
" This does not affect indentation at all (I tested it with and without
" leader), merely whether a leader is inserted by default or not.
if get(g:, 'rust_bang_comment_leader', 0)
" Why is the `,s0:/*,mb:\ ,ex:*/` there, you ask? I don't understand why,
" but without it, */ gets indented one space even if there were no
" leaders. I'm fairly sure that's a Vim bug.
setlocal comments=s1:/*,mb:*,ex:*/,s0:/*,mb:\ ,ex:*/,:///,://!,://
else
setlocal comments=s0:/*!,m:\ ,ex:*/,s1:/*,mb:*,ex:*/,:///,://!,://
endif
setlocal commentstring=//%s
setlocal formatoptions-=t formatoptions+=croqnl
" j was only added in 7.3.541, so stop complaints about its nonexistence
silent! setlocal formatoptions+=j
" smartindent will be overridden by indentexpr if filetype indent is on, but
" otherwise it's better than nothing.
setlocal smartindent nocindent
if get(g:, 'rust_recommended_style', 1)
let b:rust_set_style = 1
setlocal tabstop=8 shiftwidth=4 softtabstop=4 expandtab
setlocal textwidth=99
endif
" This includeexpr isn't perfect, but it's a good start
setlocal includeexpr=substitute(v:fname,'::','/','g')
setlocal suffixesadd=.rs
if exists("g:ftplugin_rust_source_path")
let &l:path=g:ftplugin_rust_source_path . ',' . &l:path
endif
if exists("g:loaded_delimitMate")
if exists("b:delimitMate_excluded_regions")
let b:rust_original_delimitMate_excluded_regions = b:delimitMate_excluded_regions
endif
let s:delimitMate_extra_excluded_regions = ',rustLifetimeCandidate,rustGenericLifetimeCandidate'
" For this buffer, when delimitMate issues the `User delimitMate_map`
" event in the autocommand system, add the above-defined extra excluded
" regions to delimitMate's state, if they have not already been added.
autocmd User <buffer>
\ if expand('<afile>') ==# 'delimitMate_map' && match(
\ delimitMate#Get("excluded_regions"),
\ s:delimitMate_extra_excluded_regions) == -1
\| let b:delimitMate_excluded_regions =
\ delimitMate#Get("excluded_regions")
\ . s:delimitMate_extra_excluded_regions
\|endif
" For this buffer, when delimitMate issues the `User delimitMate_unmap`
" event in the autocommand system, delete the above-defined extra excluded
" regions from delimitMate's state (the deletion being idempotent and
" having no effect if the extra excluded regions are not present in the
" targeted part of delimitMate's state).
autocmd User <buffer>
\ if expand('<afile>') ==# 'delimitMate_unmap'
\| let b:delimitMate_excluded_regions = substitute(
\ delimitMate#Get("excluded_regions"),
\ '\C\V' . s:delimitMate_extra_excluded_regions,
\ '', 'g')
\|endif
endif
if has("folding") && get(g:, 'rust_fold', 0)
let b:rust_set_foldmethod=1
setlocal foldmethod=syntax
if g:rust_fold == 2
setlocal foldlevel<
else
setlocal foldlevel=99
endif
endif
if has('conceal') && get(g:, 'rust_conceal', 0)
let b:rust_set_conceallevel=1
setlocal conceallevel=2
endif
" Motion Commands {{{1
" Bind motion commands to support hanging indents
nnoremap <silent> <buffer> [[ :call rust#Jump('n', 'Back')<CR>
nnoremap <silent> <buffer> ]] :call rust#Jump('n', 'Forward')<CR>
xnoremap <silent> <buffer> [[ :call rust#Jump('v', 'Back')<CR>
xnoremap <silent> <buffer> ]] :call rust#Jump('v', 'Forward')<CR>
onoremap <silent> <buffer> [[ :call rust#Jump('o', 'Back')<CR>
onoremap <silent> <buffer> ]] :call rust#Jump('o', 'Forward')<CR>
" Commands {{{1
" See |:RustRun| for docs
command! -nargs=* -complete=file -bang -buffer RustRun call rust#Run(<bang>0, <q-args>)
" See |:RustExpand| for docs
command! -nargs=* -complete=customlist,rust#CompleteExpand -bang -buffer RustExpand call rust#Expand(<bang>0, <q-args>)
" See |:RustEmitIr| for docs
command! -nargs=* -buffer RustEmitIr call rust#Emit("llvm-ir", <q-args>)
" See |:RustEmitAsm| for docs
command! -nargs=* -buffer RustEmitAsm call rust#Emit("asm", <q-args>)
" See |:RustPlay| for docs
command! -range=% RustPlay :call rust#Play(<count>, <line1>, <line2>, <f-args>)
" See |:RustFmt| for docs
command! -buffer RustFmt call rustfmt#Format()
" See |:RustFmtRange| for docs
command! -range -buffer RustFmtRange call rustfmt#FormatRange(<line1>, <line2>)
" See |:RustInfo| for docs
command! -bar RustInfo call rust#debugging#Info()
" See |:RustInfoToClipboard| for docs
command! -bar RustInfoToClipboard call rust#debugging#InfoToClipboard()
" See |:RustInfoToFile| for docs
command! -bar -nargs=1 RustInfoToFile call rust#debugging#InfoToFile(<f-args>)
if !exists("b:rust_last_rustc_args") || !exists("b:rust_last_args")
let b:rust_last_rustc_args = []
let b:rust_last_args = []
endif
" Cleanup {{{1
let b:undo_ftplugin = "
\ setlocal formatoptions< comments< commentstring< includeexpr< suffixesadd<
\|if exists('b:rust_set_style')
\|setlocal tabstop< shiftwidth< softtabstop< expandtab< textwidth<
\|endif
\|if exists('b:rust_original_delimitMate_excluded_regions')
\|let b:delimitMate_excluded_regions = b:rust_original_delimitMate_excluded_regions
\|unlet b:rust_original_delimitMate_excluded_regions
\|else
\|unlet! b:delimitMate_excluded_regions
\|endif
\|if exists('b:rust_set_foldmethod')
\|setlocal foldmethod< foldlevel<
\|unlet b:rust_set_foldmethod
\|endif
\|if exists('b:rust_set_conceallevel')
\|setlocal conceallevel<
\|unlet b:rust_set_conceallevel
\|endif
\|unlet! b:rust_last_rustc_args b:rust_last_args
\|delcommand RustRun
\|delcommand RustExpand
\|delcommand RustEmitIr
\|delcommand RustEmitAsm
\|delcommand RustPlay
\|nunmap <buffer> [[
\|nunmap <buffer> ]]
\|xunmap <buffer> [[
\|xunmap <buffer> ]]
\|ounmap <buffer> [[
\|ounmap <buffer> ]]
\|set matchpairs-=<:>
\|unlet b:match_skip
\"
" }}}1
" Code formatting on save
autocmd BufWritePre *.rs silent! call rustfmt#PreWrite()
augroup END
set matchpairs+=<:>
" For matchit.vim (rustArrow stops `Fn() -> X` messing things up)
let b:match_skip = 's:comment\|string\|rustArrow'
let &cpo = s:save_cpo
unlet s:save_cpo
" vim: set et sw=4 sts=4 ts=8:
endif
