Method InclusionDirective

src/syntax/scan.cpp:204–232

        if(clang::scanSourceForDependencyDirectives(entry_ptr->source,
                                                    entry_ptr->tokens,
                                                    entry_ptr->directives)) {
            // Scan failed — remove the entry.
            if(cache) {
                cache->entries.erase(path);
            } else {
                local_entries.pop_back();
            }
            return std::nullopt;
        }

        return llvm::ArrayRef(entry_ptr->directives);
    }

    /// Lexed by clang's ordinary lexer, not from its directives: the main
    /// file is the text being typed, and the directives lexer breaks on
    /// half-typed directives (an `#if(` cut off at the end of the buffer,
    /// `import <header>;`) where the ordinary lexer reports an error — the
    /// scan runs in the master process, where a crash ends the server.
    clang::OptionalFileEntryRef main_file;

private:
    SharedScanCache* cache;
    clang::FileManager* file_mgr;
    std::deque<SharedScanCache::CachedEntry> local_entries;
};

/// PPCallbacks for precise mode: single ScanResult with accurate
/// conditional tracking via preprocessor callbacks.
class PreciseScanPPCallbacks : public clang::PPCallbacks {
public:
    explicit PreciseScanPPCallbacks(ScanResult& result) : result(result) {}