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+" 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!
+
+" 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 exists("g:rust_bang_comment_leader") && 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 !exists("g:rust_recommended_style") || g:rust_recommended_style != 0
+ setlocal tabstop=4 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") && exists('g:rust_fold') && 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') && exists('g:rust_conceal') && 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>)
+
+" Mappings {{{1
+
+" Bind ⌘R in MacVim to :RustRun
+nnoremap <silent> <buffer> <D-r> :RustRun<CR>
+" Bind ⌘⇧R in MacVim to :RustRun! pre-filled with the last args
+nnoremap <buffer> <D-R> :RustRun! <C-r>=join(b:rust_last_rustc_args)<CR><C-\>erust#AppendCmdLine(' -- ' . join(b:rust_last_args))<CR>
+
+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<
+ \|setlocal tabstop< shiftwidth< softtabstop< expandtab< textwidth<
+ \|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> <D-r>
+ \|nunmap <buffer> <D-R>
+ \|nunmap <buffer> [[
+ \|nunmap <buffer> ]]
+ \|xunmap <buffer> [[
+ \|xunmap <buffer> ]]
+ \|ounmap <buffer> [[
+ \|ounmap <buffer> ]]
+ \|set matchpairs-=<:>
+ \"
+
+" }}}1
+
+" Code formatting on save
+if get(g:, "rustfmt_autosave", 0)
+ autocmd BufWritePre *.rs silent! call rustfmt#Format()
+endif
+
+augroup END
+
+let &cpo = s:save_cpo
+unlet s:save_cpo
+
+" vim: set noet sw=8 ts=8: