225 lines
4.8 KiB
VimL
225 lines
4.8 KiB
VimL
" Author: Kevin Ballard
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" Description: Helper functions for Rust commands/mappings
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" Last Modified: May 27, 2014
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" Jump {{{1
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function! rust#Jump(mode, function) range
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let cnt = v:count1
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normal! m'
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if a:mode ==# 'v'
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norm! gv
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endif
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let foldenable = &foldenable
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set nofoldenable
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while cnt > 0
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execute "call <SID>Jump_" . a:function . "()"
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let cnt = cnt - 1
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endwhile
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let &foldenable = foldenable
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endfunction
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function! s:Jump_Back()
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call search('{', 'b')
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keepjumps normal! w99[{
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endfunction
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function! s:Jump_Forward()
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normal! j0
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call search('{', 'b')
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keepjumps normal! w99[{%
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call search('{')
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endfunction
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" Run {{{1
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function! rust#Run(bang, args)
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if a:bang
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let idx = index(a:args, '--')
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if idx != -1
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let rustc_args = idx == 0 ? [] : a:args[:idx-1]
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let args = a:args[idx+1:]
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else
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let rustc_args = a:args
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let args = []
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endif
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else
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let rustc_args = []
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let args = a:args
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endif
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let b:rust_last_rustc_args = rustc_args
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let b:rust_last_args = args
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call s:WithPath(function("s:Run"), rustc_args, args)
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endfunction
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function! s:Run(path, rustc_args, args)
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try
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let exepath = tempname()
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if has('win32')
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let exepath .= '.exe'
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endif
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let rustc_args = [a:path, '-o', exepath] + a:rustc_args
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let rustc = exists("g:rustc_path") ? g:rustc_path : "rustc"
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let output = system(shellescape(rustc) . " " . join(map(rustc_args, 'shellescape(v:val)')))
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if output != ''
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echohl WarningMsg
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echo output
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echohl None
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endif
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if !v:shell_error
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exe '!' . shellescape(exepath) . " " . join(map(a:args, 'shellescape(v:val)'))
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endif
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finally
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if exists("exepath")
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silent! call delete(exepath)
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endif
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endtry
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endfunction
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" Expand {{{1
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function! rust#Expand(bang, args)
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if a:bang && !empty(a:args)
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let pretty = a:args[0]
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let args = a:args[1:]
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else
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let pretty = "expanded"
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let args = a:args
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endif
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call s:WithPath(function("s:Expand"), pretty, args)
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endfunction
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function! s:Expand(path, pretty, args)
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try
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let rustc = exists("g:rustc_path") ? g:rustc_path : "rustc"
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let args = [a:path, '--pretty', a:pretty] + a:args
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let output = system(shellescape(rustc) . " " . join(map(args, "shellescape(v:val)")))
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if v:shell_error
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echohl WarningMsg
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echo output
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echohl None
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else
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new
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silent put =output
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1
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d
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setl filetype=rust
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setl buftype=nofile
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setl bufhidden=hide
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setl noswapfile
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endif
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endtry
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endfunction
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function! rust#CompleteExpand(lead, line, pos)
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if a:line[: a:pos-1] =~ '^RustExpand!\s*\S*$'
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" first argument and it has a !
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let list = ["normal", "expanded", "typed", "expanded,identified", "flowgraph="]
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if !empty(a:lead)
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call filter(list, "v:val[:len(a:lead)-1] == a:lead")
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endif
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return list
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endif
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return glob(escape(a:lead, "*?[") . '*', 0, 1)
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endfunction
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" Emit {{{1
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function! rust#Emit(type, args)
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call s:WithPath(function("s:Emit"), a:type, a:args)
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endfunction
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function! s:Emit(path, type, args)
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try
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let rustc = exists("g:rustc_path") ? g:rustc_path : "rustc"
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let args = [a:path, '--emit', a:type, '-o', '-'] + a:args
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let output = system(shellescape(rustc) . " " . join(map(args, "shellescape(v:val)")))
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if v:shell_error
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echohl WarningMsg
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echo output
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echohl None
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else
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new
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silent put =output
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1
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d
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if a:type == "ir"
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setl filetype=llvm
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elseif a:type == "asm"
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setl filetype=asm
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endif
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setl buftype=nofile
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setl bufhidden=hide
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setl noswapfile
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endif
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endtry
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endfunction
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" Utility functions {{{1
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function! s:WithPath(func, ...)
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try
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let save_write = &write
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set write
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let path = expand('%')
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let pathisempty = empty(path)
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if pathisempty || !save_write
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" use a temporary file named 'unnamed.rs' inside a temporary
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" directory. This produces better error messages
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let tmpdir = tempname()
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call mkdir(tmpdir)
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let save_cwd = getcwd()
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silent exe 'lcd' fnameescape(tmpdir)
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let path = 'unnamed.rs'
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let save_mod = &mod
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set nomod
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silent exe 'keepalt write! ' . fnameescape(path)
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if pathisempty
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silent keepalt 0file
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endif
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else
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update
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endif
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call call(a:func, [path] + a:000)
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finally
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if exists("save_mod") | let &mod = save_mod | endif
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if exists("save_write") | let &write = save_write | endif
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if exists("save_cwd") | silent exe 'lcd' fnameescape(save_cwd) | endif
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if exists("tmpdir") | silent call s:RmDir(tmpdir) | endif
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endtry
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endfunction
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function! rust#AppendCmdLine(text)
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call setcmdpos(getcmdpos())
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let cmd = getcmdline() . a:text
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return cmd
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endfunction
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function! s:RmDir(path)
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" sanity check; make sure it's not empty, /, or $HOME
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if empty(a:path)
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echoerr 'Attempted to delete empty path'
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return 0
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elseif a:path == '/' || a:path == $HOME
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echoerr 'Attempted to delete protected path: ' . a:path
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return 0
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endif
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silent exe "!rm -rf " . shellescape(a:path)
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endfunction
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" }}}1
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" vim: set noet sw=4 ts=4:
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