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" Vim compiler file
" Compiler: Spotbugs (Java static checker; needs javac compiled classes)
" Maintainer: @konfekt and @zzzyxwvut
" Last Change: 2024 Nov 27
if exists('g:current_compiler') || bufname() !~# '\.java\=$' || wordcount().chars < 9
finish
endif
let s:cpo_save = &cpo
set cpo&vim
" Unfortunately Spotbugs does not output absolute paths, so you need to
" pass the directory of the files being checked as `-sourcepath` parameter.
" The regex, auxpath and glob try to include all dependent classes of the
" current buffer. See https://github.com/spotbugs/spotbugs/issues/856
" FIXME: When "search()" is used with the "e" flag, it makes no _further_
" progress after claiming an EOL match (i.e. "\_" or "\n", but not "$").
" XXX: Omit anonymous class declarations
let s:keywords = '\C\<\%(\.\@1<!class\|@\=interface\|enum\|record\|package\)\%(\s\|$\)'
let s:type_names = '\C\<\%(\.\@1<!class\|@\=interface\|enum\|record\)\s*\(\K\k*\)\>'
" Capture ";" for counting a class file directory (see s:package_dir_heads below)
let s:package_names = '\C\<package\s*\(\K\%(\k*\.\=\)\+;\)'
let s:package = ''
if has('syntax') && exists('g:syntax_on') && exists('b:current_syntax') &&
\ b:current_syntax == 'java' && hlexists('javaClassDecl')
function! s:GetDeclaredTypeNames() abort
if bufname() =~# '\<\%(module\|package\)-info\.java\=$'
return [expand('%:t:r')]
endif
defer execute('silent! normal! g``')
call cursor(1, 1)
let type_names = []
let lnum = search(s:keywords, 'eW')
while lnum > 0
let name_attr = synIDattr(synID(lnum, (col('.') - 1), 0), 'name')
if name_attr ==# 'javaClassDecl'
let tokens = matchlist(getline(lnum)..getline(lnum + 1), s:type_names)
if !empty(tokens) | call add(type_names, tokens[1]) | endif
elseif name_attr ==# 'javaExternal'
let tokens = matchlist(getline(lnum)..getline(lnum + 1), s:package_names)
if !empty(tokens) | let s:package = tokens[1] | endif
endif
let lnum = search(s:keywords, 'eW')
endwhile
return type_names
endfunction
else
function! s:GetDeclaredTypeNames() abort
if bufname() =~# '\<\%(module\|package\)-info\.java\=$'
return [expand('%:t:r')]
endif
" Undo the unsetting of &hls, see below
if &hls
defer execute('set hls')
endif
" Possibly restore the current values for registers '"' and "y", see below
defer call('setreg', ['"', getreg('"'), getregtype('"')])
defer call('setreg', ['y', getreg('y'), getregtype('y')])
defer execute('silent bwipeout')
" Copy buffer contents for modification
silent %y y
new
" Apply ":help scratch-buffer" effects and match "$" in Java (generated)
" type names (see s:type_names)
setlocal iskeyword+=$ buftype=nofile bufhidden=hide noswapfile nohls
0put y
" Discard text blocks and strings
silent keeppatterns %s/\\\@<!"""\_.\{-}\\\@<!"""\|\\"//ge
silent keeppatterns %s/".*"//ge
" Discard comments
silent keeppatterns %s/\/\/.\+$//ge
silent keeppatterns %s/\/\*\_.\{-}\*\///ge
call cursor(1, 1)
let type_names = []
let lnum = search(s:keywords, 'eW')
while lnum > 0
let line = getline(lnum)
if line =~# '\<package\>'
let tokens = matchlist(line..getline(lnum + 1), s:package_names)
if !empty(tokens) | let s:package = tokens[1] | endif
else
let tokens = matchlist(line..getline(lnum + 1), s:type_names)
if !empty(tokens) | call add(type_names, tokens[1]) | endif
endif
let lnum = search(s:keywords, 'eW')
endwhile
return type_names
endfunction
endif
if has('win32')
function! s:GlobClassFiles(src_type_name) abort
return glob(a:src_type_name..'$*.class', 1, 1)
endfunction
else
function! s:GlobClassFiles(src_type_name) abort
return glob(a:src_type_name..'\$*.class', 1, 1)
endfunction
endif
if exists('g:spotbugs_properties') &&
\ (has_key(g:spotbugs_properties, 'sourceDirPath') &&
\ has_key(g:spotbugs_properties, 'classDirPath')) ||
\ (has_key(g:spotbugs_properties, 'testSourceDirPath') &&
\ has_key(g:spotbugs_properties, 'testClassDirPath'))
function! s:FindClassFiles(src_type_name) abort
let class_files = []
" Match pairwise the components of source and class pathnames
for [src_dir, bin_dir] in filter([
\ [get(g:spotbugs_properties, 'sourceDirPath', ''),
\ get(g:spotbugs_properties, 'classDirPath', '')],
\ [get(g:spotbugs_properties, 'testSourceDirPath', ''),
\ get(g:spotbugs_properties, 'testClassDirPath', '')]],
\ '!(empty(v:val[0]) || empty(v:val[1]))')
" Since only the rightmost "src" is sought, while there can be any number of
" such filenames, no "fnamemodify(a:src_type_name, ':p:s?src?bin?')" is used
let tail_idx = strridx(a:src_type_name, src_dir)
" No such directory or no such inner type (i.e. without "$")
if tail_idx < 0 | continue | endif
" Substitute "bin_dir" for the rightmost "src_dir"
let candidate_type_name = strpart(a:src_type_name, 0, tail_idx)..
\ bin_dir..
\ strpart(a:src_type_name, (tail_idx + strlen(src_dir)))
for candidate in insert(s:GlobClassFiles(candidate_type_name),
\ candidate_type_name..'.class')
if filereadable(candidate) | call add(class_files, shellescape(candidate)) | endif
endfor
if !empty(class_files) | break | endif
endfor
return class_files
endfunction
else
function! s:FindClassFiles(src_type_name) abort
let class_files = []
for candidate in insert(s:GlobClassFiles(a:src_type_name),
\ a:src_type_name..'.class')
if filereadable(candidate) | call add(class_files, shellescape(candidate)) | endif
endfor
return class_files
endfunction
endif
function! s:CollectClassFiles() abort
" Get a platform-independent pathname prefix, cf. "expand('%:p:h')..'/'"
let pathname = expand('%:p')
let tail_idx = strridx(pathname, expand('%:t'))
let src_pathname = strpart(pathname, 0, tail_idx)
let all_class_files = []
" Get all type names in the current buffer and let the filename globbing
" discover inner type names from arbitrary type names
for type_name in s:GetDeclaredTypeNames()
call extend(all_class_files, s:FindClassFiles(src_pathname..type_name))
endfor
return all_class_files
endfunction
" Expose class files for removal etc.
let b:spotbugs_class_files = s:CollectClassFiles()
let s:package_dir_heads = repeat(':h', (1 + strlen(substitute(s:package, '[^.;]', '', 'g'))))
let g:current_compiler = 'spotbugs'
" CompilerSet makeprg=spotbugs
let &l:makeprg = 'spotbugs'..(has('win32') ? '.bat' : '')..' '..
\ get(b:, 'spotbugs_makeprg_params', get(g:, 'spotbugs_makeprg_params', '-workHard -experimental'))..
\ ' -textui -emacs -auxclasspath %:p'..s:package_dir_heads..':S -sourcepath %:p'..s:package_dir_heads..':S '..
\ join(b:spotbugs_class_files, ' ')
" Emacs expects doubled line numbers
setlocal errorformat=%f:%l:%*[0-9]\ %m,%f:-%*[0-9]:-%*[0-9]\ %m
" " This compiler is meant to be used for a single buffer only
" exe 'CompilerSet makeprg='..escape(&l:makeprg, ' \|"')
" exe 'CompilerSet errorformat='..escape(&l:errorformat, ' \|"')
delfunction s:CollectClassFiles
delfunction s:FindClassFiles
delfunction s:GlobClassFiles
delfunction s:GetDeclaredTypeNames
let &cpo = s:cpo_save
unlet s:package_dir_heads s:package s:package_names s:type_names s:keywords s:cpo_save
" vim: set foldmethod=syntax shiftwidth=2 expandtab:
|
