Swift: collect source files

Author: redsun82

swift/extractor/SwiftExtractor.cpp

@@ -114,6 +114,9 @@ static std::unordered_set<swift::ModuleDecl*> extractDeclarations(
     swift::ModuleDecl& module,
     swift::SourceFile* primaryFile = nullptr) {
   auto filename = getFilename(module, primaryFile);
+  if (primaryFile) {
+    state.sourceFiles.push_back(filename);
+  }
 
   // The extractor can be called several times from different processes with
   // the same input file(s). Using `TargetFile` the first process will win, and the following

swift/extractor/config/SwiftExtractorState.h

@@ -19,6 +19,8 @@ struct SwiftExtractorState {
   // All modules encountered during this extractor run, which therefore are dependencies of the
   // outcomes of this run
   std::unordered_set<const swift::ModuleDecl*> encounteredModules;
+
+  std::vector<std::filesystem::path> sourceFiles;
 };
 
 }  // namespace codeql