core::annotations::Location convertClangSrcLoc(core::NodeManager& man, const clang::SourceManager& sm, clang::SourceLocation start,
clang::SourceLocation end) {
// check file validity
FileID&& fileId = sm.getFileID(start);
if(fileId.isInvalid()) return core::annotations::Location::getShared();
const clang::FileEntry* fileEntry = sm.getFileEntryForID(fileId);
// if we cannot get the file entry, lets try to get the source filename directly
std::string filename;
if(!fileEntry) {
StringRef s = sm.getFilename(start);
filename = s.str();
} else {
assert_true(fileEntry);
filename = fileEntry->getName();
}
// update macro locations, if required
start = getExpansionLoc(sm, start);
end = getExpansionLoc(sm, end);
// generate location object
core::IRBuilder builder(man);
return core::annotations::Location(builder.stringValue(filename.c_str()),
core::annotations::TextPosition(sm.getSpellingLineNumber(start), sm.getSpellingColumnNumber(start)),
core::annotations::TextPosition(sm.getSpellingLineNumber(end), sm.getSpellingColumnNumber(end)));
}