222 lines
6.8 KiB
VimL
222 lines
6.8 KiB
VimL
" LLVM coding guidelines conformance for VIM
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" $Revision: 117415 $
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"
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" Maintainer: The LLVM Team, http://llvm.org
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" WARNING: Read before you source in all these commands and macros! Some
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" of them may change VIM behavior that you depend on.
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"
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" You can run VIM with these settings without changing your current setup with:
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" $ vim -u /path/to/llvm/utils/vim/vimrc
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" It's VIM, not VI
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set nocompatible
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" A tab produces a 2-space indentation
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set softtabstop=2
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set shiftwidth=2
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set expandtab
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" Highlight trailing whitespace and lines longer than 80 columns.
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highlight LongLine ctermbg=DarkYellow guibg=DarkYellow
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highlight WhitespaceEOL ctermbg=DarkYellow guibg=DarkYellow
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if v:version >= 702
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" Lines longer than 80 columns.
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au BufWinEnter * let w:m0=matchadd('LongLine', '\%>80v.\+', -1)
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" Whitespace at the end of a line. This little dance suppresses
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" whitespace that has just been typed.
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au BufWinEnter * let w:m1=matchadd('WhitespaceEOL', '\s\+$', -1)
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au InsertEnter * call matchdelete(w:m1)
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au InsertEnter * let w:m2=matchadd('WhitespaceEOL', '\s\+\%#\@<!$', -1)
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au InsertLeave * call matchdelete(w:m2)
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au InsertLeave * let w:m1=matchadd('WhitespaceEOL', '\s\+$', -1)
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else
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au BufRead,BufNewFile * syntax match LongLine /\%>80v.\+/
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au InsertEnter * syntax match WhitespaceEOL /\s\+\%#\@<!$/
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au InsertLeave * syntax match WhitespaceEOL /\s\+$/
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endif
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" Enable filetype detection
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filetype on
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" Optional
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" C/C++ programming helpers
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augroup csrc
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au!
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autocmd FileType * set nocindent smartindent
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autocmd FileType c,cpp set cindent
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augroup END
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" Set a few indentation parameters. See the VIM help for cinoptions-values for
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" details. These aren't absolute rules; they're just an approximation of
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" common style in LLVM source.
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set cinoptions=:0,g0,(0,Ws,l1
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" Add and delete spaces in increments of `shiftwidth' for tabs
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set smarttab
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" Highlight syntax in programming languages
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syntax on
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" LLVM Makefiles can have names such as Makefile.rules or TEST.nightly.Makefile,
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" so it's important to categorize them as such.
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augroup filetype
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au! BufRead,BufNewFile *Makefile* set filetype=make
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augroup END
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" In Makefiles, don't expand tabs to spaces, since we need the actual tabs
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autocmd FileType make set noexpandtab
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" Useful macros for cleaning up code to conform to LLVM coding guidelines
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" Delete trailing whitespace and tabs at the end of each line
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command! DeleteTrailingWs :%s/\s\+$//
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" Convert all tab characters to two spaces
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command! Untab :%s/\t/ /g
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" Enable syntax highlighting for LLVM files. To use, copy
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" utils/vim/llvm.vim to ~/.vim/syntax .
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augroup filetype
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au! BufRead,BufNewFile *.ll set filetype=llvm
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augroup END
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" Enable syntax highlighting for tablegen files. To use, copy
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" utils/vim/tablegen.vim to ~/.vim/syntax .
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augroup filetype
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au! BufRead,BufNewFile *.td set filetype=tablegen
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augroup END
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" Additional vim features to optionally uncomment.
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"set showcmd
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"set showmatch
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"set showmode
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"set incsearch
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"set ruler
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" Clang code-completion support. This is somewhat experimental!
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" A path to a clang executable.
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let g:clang_path = "clang++"
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" A list of options to add to the clang commandline, for example to add
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" include paths, predefined macros, and language options.
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let g:clang_opts = [
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\ "-x","c++",
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\ "-D__STDC_LIMIT_MACROS=1","-D__STDC_CONSTANT_MACROS=1",
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\ "-Iinclude" ]
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function! ClangComplete(findstart, base)
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if a:findstart == 1
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" In findstart mode, look for the beginning of the current identifier.
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let l:line = getline('.')
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let l:start = col('.') - 1
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while l:start > 0 && l:line[l:start - 1] =~ '\i'
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let l:start -= 1
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endwhile
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return l:start
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endif
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" Get the current line and column numbers.
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let l:l = line('.')
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let l:c = col('.')
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" Build a clang commandline to do code completion on stdin.
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let l:the_command = shellescape(g:clang_path) .
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\ " -cc1 -code-completion-at=-:" . l:l . ":" . l:c
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for l:opt in g:clang_opts
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let l:the_command .= " " . shellescape(l:opt)
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endfor
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" Copy the contents of the current buffer into a string for stdin.
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" TODO: The extra space at the end is for working around clang's
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" apparent inability to do code completion at the very end of the
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" input.
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" TODO: Is it better to feed clang the entire file instead of truncating
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" it at the current line?
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let l:process_input = join(getline(1, l:l), "\n") . " "
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" Run it!
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let l:input_lines = split(system(l:the_command, l:process_input), "\n")
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" Parse the output.
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for l:input_line in l:input_lines
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" Vim's substring operator is annoyingly inconsistent with python's.
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if l:input_line[:11] == 'COMPLETION: '
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let l:value = l:input_line[12:]
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" Chop off anything after " : ", if present, and move it to the menu.
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let l:menu = ""
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let l:spacecolonspace = stridx(l:value, " : ")
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if l:spacecolonspace != -1
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let l:menu = l:value[l:spacecolonspace+3:]
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let l:value = l:value[:l:spacecolonspace-1]
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endif
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" Chop off " (Hidden)", if present, and move it to the menu.
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let l:hidden = stridx(l:value, " (Hidden)")
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if l:hidden != -1
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let l:menu .= " (Hidden)"
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let l:value = l:value[:l:hidden-1]
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endif
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" Handle "Pattern". TODO: Make clang less weird.
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if l:value == "Pattern"
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let l:value = l:menu
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let l:pound = stridx(l:value, "#")
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" Truncate the at the first [#, <#, or {#.
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if l:pound != -1
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let l:value = l:value[:l:pound-2]
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endif
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endif
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" Filter out results which don't match the base string.
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if a:base != ""
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if l:value[:strlen(a:base)-1] != a:base
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continue
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end
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endif
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" TODO: Don't dump the raw input into info, though it's nice for now.
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" TODO: The kind string?
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let l:item = {
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\ "word": l:value,
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\ "menu": l:menu,
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\ "info": l:input_line,
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\ "dup": 1 }
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" Report a result.
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if complete_add(l:item) == 0
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return []
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endif
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if complete_check()
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return []
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endif
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elseif l:input_line[:9] == "OVERLOAD: "
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" An overload candidate. Use a crazy hack to get vim to
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" display the results. TODO: Make this better.
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let l:value = l:input_line[10:]
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let l:item = {
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\ "word": " ",
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\ "menu": l:value,
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\ "info": l:input_line,
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\ "dup": 1}
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" Report a result.
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if complete_add(l:item) == 0
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return []
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endif
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if complete_check()
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return []
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endif
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endif
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endfor
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return []
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endfunction ClangComplete
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" This to enables the somewhat-experimental clang-based
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" autocompletion support.
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set omnifunc=ClangComplete
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