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" Author: Martino Pilia <martino.pilia@gmail.com>
" Description: Lint Ada files with GCC
call ale#Set('ada_gcc_executable', 'gcc')
" -gnatwa: activate most optional warnings
" -gnatq: try semantic analysis even if syntax errors have been found
call ale#Set('ada_gcc_options', '-gnatwa -gnatq')
function! ale_linters#ada#gcc#GetCommand(buffer) abort
" Build a suitable output file name. The output file is specified because
" the .ali file may be created even if no code generation is attempted.
" The output file name must match the source file name (except for the
" extension), so here we cannot use the null file as output.
let l:tmp_dir = fnamemodify(ale#command#CreateDirectory(a:buffer), ':p')
let l:out_file = l:tmp_dir . fnamemodify(bufname(a:buffer), ':t:r') . '.o'
" -gnatc: Check syntax and semantics only (no code generation attempted)
return '%e -x ada -c -gnatc'
\ . ' -o ' . ale#Escape(l:out_file)
\ . ' -I %s:h'
\ . ale#Pad(ale#Var(a:buffer, 'ada_gcc_options'))
\ . ' %t'
endfunction
" For the message format please refer to:
" https://gcc.gnu.org/onlinedocs/gnat_ugn/Output-and-Error-Message-Control.html
" https://gcc.gnu.org/onlinedocs/gnat_ugn/Warning-Message-Control.html
function! ale_linters#ada#gcc#Handle(buffer, lines) abort
" Error format: <filename>:<lnum>:<col>: <text>
" Warning format: <filename>:<lnum>:<col>: warning: <text>
let l:re = '\v(.+):([0-9]+):([0-9]+):\s+(warning:)?\s*(.+)\s*'
let l:output = []
for l:match in ale#util#GetMatches(a:lines, l:re)
call add(l:output, {
\ 'bufnr': a:buffer,
\ 'lnum': str2nr(l:match[2]),
\ 'col': str2nr(l:match[3]),
\ 'type': l:match[4] is# 'warning:' ? 'W' : 'E',
\ 'text': l:match[5],
\})
endfor
return l:output
endfunction
call ale#linter#Define('ada', {
\ 'name': 'gcc',
\ 'output_stream': 'stderr',
\ 'executable': {b -> ale#Var(b, 'ada_gcc_executable')},
\ 'command': function('ale_linters#ada#gcc#GetCommand'),
\ 'callback': 'ale_linters#ada#gcc#Handle',
\})
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