Edit: rust.vim
" Author: Kevin Ballard " Description: Helper functions for Rust commands/mappings " Last Modified: May 27, 2014 " For bugs, patches and license go to https://github.com/rust-lang/rust.vim " Jump {{{1 function! rust#Jump(mode, function) range let cnt = v:count1 normal! m' if a:mode ==# 'v' norm! gv endif let foldenable = &foldenable set nofoldenable while cnt > 0 execute "call <SID>Jump_" . a:function . "()" let cnt = cnt - 1 endwhile let &foldenable = foldenable endfunction function! s:Jump_Back() call search('{', 'b') keepjumps normal! w99[{ endfunction function! s:Jump_Forward() normal! j0 call search('{', 'b') keepjumps normal! w99[{% call search('{') endfunction " Run {{{1 function! rust#Run(bang, args) let args = s:ShellTokenize(a:args) if a:bang let idx = index(l:args, '--') if idx != -1 let rustc_args = idx == 0 ? [] : l:args[:idx-1] let args = l:args[idx+1:] else let rustc_args = l:args let args = [] endif else let rustc_args = [] endif let b:rust_last_rustc_args = l:rustc_args let b:rust_last_args = l:args call s:WithPath(function("s:Run"), rustc_args, args) endfunction function! s:Run(dict, rustc_args, args) let exepath = a:dict.tmpdir.'/'.fnamemodify(a:dict.path, ':t:r') if has('win32') let exepath .= '.exe' endif let relpath = get(a:dict, 'tmpdir_relpath', a:dict.path) let rustc_args = [relpath, '-o', exepath] + a:rustc_args let rustc = exists("g:rustc_path") ? g:rustc_path : "rustc" let pwd = a:dict.istemp ? a:dict.tmpdir : '' let output = s:system(pwd, shellescape(rustc) . " " . join(map(rustc_args, 'shellescape(v:val)'))) if output != '' echohl WarningMsg echo output echohl None endif if !v:shell_error exe '!' . shellescape(exepath) . " " . join(map(a:args, 'shellescape(v:val)')) endif endfunction " Expand {{{1 function! rust#Expand(bang, args) let args = s:ShellTokenize(a:args) if a:bang && !empty(l:args) let pretty = remove(l:args, 0) else let pretty = "expanded" endif call s:WithPath(function("s:Expand"), pretty, args) endfunction function! s:Expand(dict, pretty, args) try let rustc = exists("g:rustc_path") ? g:rustc_path : "rustc" if a:pretty =~? '^\%(everybody_loops$\|flowgraph=\)' let flag = '--xpretty' else let flag = '--pretty' endif let relpath = get(a:dict, 'tmpdir_relpath', a:dict.path) let args = [relpath, '-Z', 'unstable-options', l:flag, a:pretty] + a:args let pwd = a:dict.istemp ? a:dict.tmpdir : '' let output = s:system(pwd, shellescape(rustc) . " " . join(map(args, 'shellescape(v:val)'))) if v:shell_error echohl WarningMsg echo output echohl None else new silent put =output 1 d setl filetype=rust setl buftype=nofile setl bufhidden=hide setl noswapfile " give the buffer a nice name let suffix = 1 let basename = fnamemodify(a:dict.path, ':t:r') while 1 let bufname = basename if suffix > 1 | let bufname .= ' ('.suffix.')' | endif let bufname .= '.pretty.rs' if bufexists(bufname) let suffix += 1 continue endif exe 'silent noautocmd keepalt file' fnameescape(bufname) break endwhile endif endtry endfunction function! rust#CompleteExpand(lead, line, pos) if a:line[: a:pos-1] =~ '^RustExpand!\s*\S*$' " first argument and it has a ! let list = ["normal", "expanded", "typed", "expanded,identified", "flowgraph=", "everybody_loops"] if !empty(a:lead) call filter(list, "v:val[:len(a:lead)-1] == a:lead") endif return list endif return glob(escape(a:lead, "*?[") . '*', 0, 1) endfunction " Emit {{{1 function! rust#Emit(type, args) let args = s:ShellTokenize(a:args) call s:WithPath(function("s:Emit"), a:type, args) endfunction function! s:Emit(dict, type, args) try let output_path = a:dict.tmpdir.'/output' let rustc = exists("g:rustc_path") ? g:rustc_path : "rustc" let relpath = get(a:dict, 'tmpdir_relpath', a:dict.path) let args = [relpath, '--emit', a:type, '-o', output_path] + a:args let pwd = a:dict.istemp ? a:dict.tmpdir : '' let output = s:system(pwd, shellescape(rustc) . " " . join(map(args, 'shellescape(v:val)'))) if output != '' echohl WarningMsg echo output echohl None endif if !v:shell_error new exe 'silent keepalt read' fnameescape(output_path) 1 d if a:type == "llvm-ir" setl filetype=llvm let extension = 'll' elseif a:type == "asm" setl filetype=asm let extension = 's' endif setl buftype=nofile setl bufhidden=hide setl noswapfile if exists('l:extension') " give the buffer a nice name let suffix = 1 let basename = fnamemodify(a:dict.path, ':t:r') while 1 let bufname = basename if suffix > 1 | let bufname .= ' ('.suffix.')' | endif let bufname .= '.'.extension if bufexists(bufname) let suffix += 1 continue endif exe 'silent noautocmd keepalt file' fnameescape(bufname) break endwhile endif endif endtry endfunction " Utility functions {{{1 " Invokes func(dict, ...) " Where {dict} is a dictionary with the following keys: " 'path' - The path to the file " 'tmpdir' - The path to a temporary directory that will be deleted when the " function returns. " 'istemp' - 1 if the path is a file inside of {dict.tmpdir} or 0 otherwise. " If {istemp} is 1 then an additional key is provided: " 'tmpdir_relpath' - The {path} relative to the {tmpdir}. " " {dict.path} may be a path to a file inside of {dict.tmpdir} or it may be the " existing path of the current buffer. If the path is inside of {dict.tmpdir} " then it is guaranteed to have a '.rs' extension. function! s:WithPath(func, ...) let buf = bufnr('') let saved = {} let dict = {} try let saved.write = &write set write let dict.path = expand('%') let pathisempty = empty(dict.path) " Always create a tmpdir in case the wrapped command wants it let dict.tmpdir = tempname() call mkdir(dict.tmpdir) if pathisempty || !saved.write let dict.istemp = 1 " if we're doing this because of nowrite, preserve the filename if !pathisempty let filename = expand('%:t:r').".rs" else let filename = 'unnamed.rs' endif let dict.tmpdir_relpath = filename let dict.path = dict.tmpdir.'/'.filename let saved.mod = &mod set nomod silent exe 'keepalt write! ' . fnameescape(dict.path) if pathisempty silent keepalt 0file endif else let dict.istemp = 0 update endif call call(a:func, [dict] + a:000) finally if bufexists(buf) for [opt, value] in items(saved) silent call setbufvar(buf, '&'.opt, value) unlet value " avoid variable type mismatches endfor endif if has_key(dict, 'tmpdir') | silent call s:RmDir(dict.tmpdir) | endif endtry endfunction function! rust#AppendCmdLine(text) call setcmdpos(getcmdpos()) let cmd = getcmdline() . a:text return cmd endfunction " Tokenize the string according to sh parsing rules function! s:ShellTokenize(text) " states: " 0: start of word " 1: unquoted " 2: unquoted backslash " 3: double-quote " 4: double-quoted backslash " 5: single-quote let l:state = 0 let l:current = '' let l:args = [] for c in split(a:text, '\zs') if l:state == 0 || l:state == 1 " unquoted if l:c ==# ' ' if l:state == 0 | continue | endif call add(l:args, l:current) let l:current = '' let l:state = 0 elseif l:c ==# '\' let l:state = 2 elseif l:c ==# '"' let l:state = 3 elseif l:c ==# "'" let l:state = 5 else let l:current .= l:c let l:state = 1 endif elseif l:state == 2 " unquoted backslash if l:c !=# "\n" " can it even be \n? let l:current .= l:c endif let l:state = 1 elseif l:state == 3 " double-quote if l:c ==# '\' let l:state = 4 elseif l:c ==# '"' let l:state = 1 else let l:current .= l:c endif elseif l:state == 4 " double-quoted backslash if stridx('$`"\', l:c) >= 0 let l:current .= l:c elseif l:c ==# "\n" " is this even possible? " skip it else let l:current .= '\'.l:c endif let l:state = 3 elseif l:state == 5 " single-quoted if l:c == "'" let l:state = 1 else let l:current .= l:c endif endif endfor if l:state != 0 call add(l:args, l:current) endif return l:args endfunction function! s:RmDir(path) " sanity check; make sure it's not empty, /, or $HOME if empty(a:path) echoerr 'Attempted to delete empty path' return 0 elseif a:path == '/' || a:path == $HOME echoerr 'Attempted to delete protected path: ' . a:path return 0 endif return system("rm -rf " . shellescape(a:path)) endfunction " Executes {cmd} with the cwd set to {pwd}, without changing Vim's cwd. " If {pwd} is the empty string then it doesn't change the cwd. function! s:system(pwd, cmd) let cmd = a:cmd if !empty(a:pwd) let cmd = 'cd ' . shellescape(a:pwd) . ' && ' . cmd endif return system(cmd) endfunction " Playpen Support {{{1 " Parts of gist.vim by Yasuhiro Matsumoto <mattn.jp@gmail.com> reused " gist.vim available under the BSD license, available at " http://github.com/mattn/gist-vim function! s:has_webapi() if !exists("*webapi#http#post") try call webapi#http#post() catch endtry endif return exists("*webapi#http#post") endfunction function! rust#Play(count, line1, line2, ...) abort redraw let l:rust_playpen_url = get(g:, 'rust_playpen_url', 'https://play.rust-lang.org/') let l:rust_shortener_url = get(g:, 'rust_shortener_url', 'https://is.gd/') if !s:has_webapi() echohl ErrorMsg | echomsg ':RustPlay depends on webapi.vim (https://github.com/mattn/webapi-vim)' | echohl None return endif let bufname = bufname('%') if a:count < 1 let content = join(getline(a:line1, a:line2), "\n") else let save_regcont = @" let save_regtype = getregtype('"') silent! normal! gvy let content = @" call setreg('"', save_regcont, save_regtype) endif let body = l:rust_playpen_url."?code=".webapi#http#encodeURI(content) if strlen(body) > 5000 echohl ErrorMsg | echomsg 'Buffer too large, max 5000 encoded characters ('.strlen(body).')' | echohl None return endif let payload = "format=simple&url=".webapi#http#encodeURI(body) let res = webapi#http#post(l:rust_shortener_url.'create.php', payload, {}) let url = res.content redraw | echomsg 'Done: '.url endfunction " }}}1 " vim: set noet sw=8 ts=8:
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