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+" Language: Rust
+" Description: Vim ftplugin for Rust
+" Maintainer: Chris Morgan <me@chrismorgan.info>
+" Last Change: 2023-09-11
+" 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
+
+" vint: -ProhibitAbbreviationOption
+let s:save_cpo = &cpo
+set cpo&vim
+" vint: +ProhibitAbbreviationOption
+
+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:/*!,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 shiftwidth=4 softtabstop=4 expandtab
+ setlocal textwidth=99
+endif
+
+setlocal include=\\v^\\s*(pub\\s+)?use\\s+\\zs(\\f\|:)+
+setlocal includeexpr=rust#IncludeExpr(v:fname)
+
+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
+
+ augroup rust.vim.DelimitMate
+ autocmd!
+
+ autocmd User delimitMate_map :call rust#delimitmate#onMap()
+ autocmd User delimitMate_unmap :call rust#delimitmate#onUnmap()
+ augroup END
+endif
+
+" Integration with auto-pairs (https://github.com/jiangmiao/auto-pairs)
+if exists("g:AutoPairsLoaded") && !get(g:, 'rust_keep_autopairs_default', 0)
+ let b:AutoPairs = {'(':')', '[':']', '{':'}','"':'"', '`':'`'}
+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=% -buffer RustPlay :call rust#Play(<count>, <line1>, <line2>, <f-args>)
+
+" See |:RustFmt| for docs
+command! -bar -buffer RustFmt call rustfmt#Format()
+
+" See |:RustFmtRange| for docs
+command! -range -buffer RustFmtRange call rustfmt#FormatRange(<line1>, <line2>)
+
+" See |:RustInfo| for docs
+command! -bar -buffer RustInfo call rust#debugging#Info()
+
+" See |:RustInfoToClipboard| for docs
+command! -bar -buffer RustInfoToClipboard call rust#debugging#InfoToClipboard()
+
+" See |:RustInfoToFile| for docs
+command! -bar -nargs=1 -buffer RustInfoToFile call rust#debugging#InfoToFile(<f-args>)
+
+" See |:RustTest| for docs
+command! -buffer -nargs=* -count -bang RustTest call rust#Test(<q-mods>, <count>, <bang>0, <q-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< include< 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 -buffer RustRun
+ \|delcommand -buffer RustExpand
+ \|delcommand -buffer RustEmitIr
+ \|delcommand -buffer RustEmitAsm
+ \|delcommand -buffer RustPlay
+ \|delcommand -buffer RustFmt
+ \|delcommand -buffer RustFmtRange
+ \|delcommand -buffer RustInfo
+ \|delcommand -buffer RustInfoToClipboard
+ \|delcommand -buffer RustInfoToFile
+ \|delcommand -buffer RustTest
+ \|nunmap <buffer> [[
+ \|nunmap <buffer> ]]
+ \|xunmap <buffer> [[
+ \|xunmap <buffer> ]]
+ \|ounmap <buffer> [[
+ \|ounmap <buffer> ]]
+ \|setlocal matchpairs-=<:>
+ \|unlet b:match_skip
+ \"
+
+" }}}1
+
+" Code formatting on save
+augroup rust.vim.PreWrite
+ autocmd!
+ autocmd BufWritePre *.rs silent! call rustfmt#PreWrite()
+augroup END
+
+setlocal matchpairs+=<:>
+" For matchit.vim (rustArrow stops `Fn() -> X` messing things up)
+let b:match_skip = 's:comment\|string\|rustCharacter\|rustArrow'
+
+command! -buffer -nargs=+ Cargo call cargo#cmd(<q-args>)
+command! -buffer -nargs=* Cbuild call cargo#build(<q-args>)
+command! -buffer -nargs=* Ccheck call cargo#check(<q-args>)
+command! -buffer -nargs=* Cclean call cargo#clean(<q-args>)
+command! -buffer -nargs=* Cdoc call cargo#doc(<q-args>)
+command! -buffer -nargs=+ Cnew call cargo#new(<q-args>)
+command! -buffer -nargs=* Cinit call cargo#init(<q-args>)
+command! -buffer -nargs=* Crun call cargo#run(<q-args>)
+command! -buffer -nargs=* Ctest call cargo#test(<q-args>)
+command! -buffer -nargs=* Cbench call cargo#bench(<q-args>)
+command! -buffer -nargs=* Cupdate call cargo#update(<q-args>)
+command! -buffer -nargs=* Csearch call cargo#search(<q-args>)
+command! -buffer -nargs=* Cpublish call cargo#publish(<q-args>)
+command! -buffer -nargs=* Cinstall call cargo#install(<q-args>)
+command! -buffer -nargs=* Cruntarget call cargo#runtarget(<q-args>)
+
+let b:undo_ftplugin .= '
+ \|delcommand -buffer Cargo
+ \|delcommand -buffer Cbuild
+ \|delcommand -buffer Ccheck
+ \|delcommand -buffer Cclean
+ \|delcommand -buffer Cdoc
+ \|delcommand -buffer Cnew
+ \|delcommand -buffer Cinit
+ \|delcommand -buffer Crun
+ \|delcommand -buffer Ctest
+ \|delcommand -buffer Cbench
+ \|delcommand -buffer Cupdate
+ \|delcommand -buffer Csearch
+ \|delcommand -buffer Cpublish
+ \|delcommand -buffer Cinstall
+ \|delcommand -buffer Cruntarget'
+
+" vint: -ProhibitAbbreviationOption
+let &cpo = s:save_cpo
+unlet s:save_cpo
+" vint: +ProhibitAbbreviationOption
+
+" vim: set et sw=4 sts=4 ts=8: