Close #2516 - Handle problems with inlined functions

autoload/ale/handlers/gcc.vim

@@ -11,6 +11,7 @@ let s:pragma_error = '#pragma once in main file'
 " <stdin>:10:27: error: invalid operands to binary - (have ‘int’ and ‘char *’)
 " -:189:7: note: $/${} is unnecessary on arithmetic variables. [SC2004]
 let s:pattern = '\v^([a-zA-Z]?:?[^:]+):(\d+):(\d+)?:? ([^:]+): (.+)$'
+let s:inline_pattern = '\v inlined from .* at \<stdin\>:(\d+):(\d+):$'
 
 function! s:IsHeaderFile(filename) abort
     return a:filename =~? '\v\.(h|hpp)$'
@@ -25,6 +26,28 @@ function! s:RemoveUnicodeQuotes(text) abort
     return l:text
 endfunction
 
+function! s:ParseInlinedFunctionProblems(buffer, lines) abort
+    let l:output = []
+    let l:pos_match = []
+
+    for l:line in a:lines
+        let l:match = matchlist(l:line, s:pattern)
+
+        if !empty(l:match) && !empty(l:pos_match)
+            call add(l:output, {
+            \   'lnum': str2nr(l:pos_match[1]),
+            \   'col': str2nr(l:pos_match[2]),
+            \   'type': (l:match[4] is# 'error' || l:match[4] is# 'fatal error') ? 'E' : 'W',
+            \   'text': s:RemoveUnicodeQuotes(l:match[5]),
+            \})
+        endif
+
+        let l:pos_match = matchlist(l:line, s:inline_pattern)
+    endfor
+
+    return l:output
+endfunction
+
 " Report problems inside of header files just for gcc and clang
 function! s:ParseProblemsInHeaders(buffer, lines) abort
     let l:output = []
@@ -129,6 +152,7 @@ endfunction
 function! ale#handlers#gcc#HandleGCCFormatWithIncludes(buffer, lines) abort
     let l:output = ale#handlers#gcc#HandleGCCFormat(a:buffer, a:lines)
 
+    call extend(l:output, s:ParseInlinedFunctionProblems(a:buffer, a:lines))
     call extend(l:output, s:ParseProblemsInHeaders(a:buffer, a:lines))
 
     return l:output

test/handler/test_gcc_handler.vader

@@ -217,3 +217,65 @@ Execute(The GCC handler should handle fatal error messages due to missing files)
   \ ale#handlers#gcc#HandleGCCFormatWithIncludes(347, [
   \ '<stdin>:3:12: fatal error: foo.h: No such file or directory',
   \ ])
+
+Execute(The GCC handler should handle errors for inlined header functions):
+  AssertEqual
+  \ [
+  \   {
+  \     'lnum': 50,
+  \     'col': 4,
+  \     'filename': '/usr/include/bits/fcntl2.h',
+  \     'type': 'E',
+  \     'text': 'call to ''__open_missing_mode'' declared with attribute error: open with O_CREAT or O_TMPFILE in second argument needs 3 arguments',
+  \   },
+  \   {
+  \     'lnum': 44,
+  \     'col': 5,
+  \     'filename': '/usr/include/bits/fcntl2.h',
+  \     'type': 'E',
+  \     'text': 'call to ''__open_too_many_args'' declared with attribute error: open can be called either with 2 or 3 arguments, not more',
+  \   },
+  \   {
+  \     'lnum': 7,
+  \     'col': 10,
+  \     'type': 'E',
+  \     'text': 'call to ''__open_missing_mode'' declared with attribute error: open with O_CREAT or O_TMPFILE in second argument needs 3 arguments',
+  \   },
+  \   {
+  \     'lnum': 13,
+  \     'col': 11,
+  \     'type': 'E',
+  \     'text': 'call to ''__open_too_many_args'' declared with attribute error: open can be called either with 2 or 3 arguments, not more',
+  \   },
+  \   {
+  \     'lnum': 1,
+  \     'text': 'Error found in header. See :ALEDetail',
+  \     'detail': join([
+  \       'In file included from /usr/include/fcntl.h:328,',
+  \       '                 from <stdin>:1:',
+  \       'In function ‘open’,',
+  \       '    inlined from ‘main’ at <stdin>:7:10:',
+  \       '/usr/include/bits/fcntl2.h:50:4: error: call to ‘__open_missing_mode’ declared with attribute error: open with O_CREAT or O_TMPFILE in second argument needs 3 arguments',
+  \       '    __open_missing_mode ();',
+  \       '    ^~~~~~~~~~~~~~~~~~~~~~',
+  \       'In function ‘open’,',
+  \       '    inlined from ‘main’ at <stdin>:13:11:',
+  \       '/usr/include/bits/fcntl2.h:44:5: error: call to ‘__open_too_many_args’ declared with attribute error: open can be called either with 2 or 3 arguments, not more',
+  \       '     __open_too_many_args ();',
+  \     ], "\n")
+  \   },
+  \],
+  \ ale#handlers#gcc#HandleGCCFormatWithIncludes(347, [
+  \ 'In file included from /usr/include/fcntl.h:328,',
+  \ '                 from <stdin>:1:',
+  \ 'In function ‘open’,',
+  \ '    inlined from ‘main’ at <stdin>:7:10:',
+  \ '/usr/include/bits/fcntl2.h:50:4: error: call to ‘__open_missing_mode’ declared with attribute error: open with O_CREAT or O_TMPFILE in second argument needs 3 arguments',
+  \ '    __open_missing_mode ();',
+  \ '    ^~~~~~~~~~~~~~~~~~~~~~',
+  \ 'In function ‘open’,',
+  \ '    inlined from ‘main’ at <stdin>:13:11:',
+  \ '/usr/include/bits/fcntl2.h:44:5: error: call to ‘__open_too_many_args’ declared with attribute error: open can be called either with 2 or 3 arguments, not more',
+  \ '     __open_too_many_args ();',
+  \ '     ^~~~~~~~~~~~~~~~~~~~~~~',
+  \ ])