function collectSourceFileData($sourcefile)
{
$all_lines = array();
$this->getTouchedLines($sourcefile, $all_lines);
foreach ($this->getObjectFiles() as $objfile) {
DwarfLineInfo::loadObject($objfile);
}
$exe_lines = DwarfLineInfo::mergedSourceLines($sourcefile);
$max_line = max($exe_lines);
/* now build a string containing the coverage info.
* This is compatible with ArcanistUnitTestResult coverage data:
* N not executable
* C covered
* U uncovered
* X unreachable (we can't detect that here)
*/
$cov = str_repeat('N', $max_line);
for ($i = 1; $i <= $max_line; $i++) {
if (isset($all_lines[$i])) {
$cov[$i - 1] = 'C';
} else {
if (isset($exe_lines[$i])) {
$cov[$i - 1] = 'U';
}
}
}
return $cov;
}
