Add total LOC to debug output (#499)

src/SourceFile.cpp

@@ -542,7 +542,8 @@ void SourceFile::runBackEnd() { // NOLINT(misc-no-recursion)
     resourceManager.totalTimer.stop();
     if (resourceManager.cliOptions.printDebugOutput) {
       CHECK_ABORT_FLAG_V()
-      std::cout << "\nSuccessfully compiled " << std::to_string(resourceManager.sourceFiles.size()) << " source file(s).\n";
+      std::cout << "\nSuccessfully compiled " << std::to_string(resourceManager.sourceFiles.size()) << " source file(s)";
+      std::cout << " or " << std::to_string(resourceManager.getTotalLineCount()) << " lines in total.\n";
       std::cout << "Total compile time: " << std::to_string(resourceManager.totalTimer.getDurationMilliseconds()) << " ms\n";
     }
   }

src/global/GlobalResourceManager.cpp

@@ -4,6 +4,7 @@
 
 #include <SourceFile.h>
 #include <ast/ASTNodes.h>
+#include <util/FileUtil.h>
 
 #include <llvm/MC/TargetRegistry.h>
 #include <llvm/Support/TargetSelect.h>
@@ -78,4 +79,9 @@ SourceFile *GlobalResourceManager::createSourceFile(SourceFile *parent, const st
 
 uint64_t GlobalResourceManager::getNextCustomTypeId() { return nextCustomTypeId++; }
 
+size_t GlobalResourceManager::getTotalLineCount() const {
+  const auto acc = [](size_t sum, const auto &sourceFile) { return sum + FileUtil::getLineCount(sourceFile.second->filePath); };
+  return std::accumulate(sourceFiles.begin(), sourceFiles.end(), 0, acc);
+}
+
 } // namespace spice::compiler

src/global/GlobalResourceManager.h

@@ -43,6 +43,7 @@ class GlobalResourceManager {
   // Public methods
   SourceFile *createSourceFile(SourceFile *parent, const std::string &depName, const std::filesystem::path &path, bool isStdFile);
   uint64_t getNextCustomTypeId();
+  size_t getTotalLineCount() const;
 
   // Public members
   llvm::LLVMContext context;

src/util/FileUtil.cpp

@@ -43,6 +43,24 @@ std::string FileUtil::getFileContent(const std::filesystem::path &filePath) {
   return stringStream.str();
 }
 
+/**
+ * Retrieve the number of lines of a file
+ *
+ * @param filePath File path
+ * @return Number of lines
+ */
+size_t FileUtil::getLineCount(const std::filesystem::path &filePath) {
+  std::ifstream file(filePath);
+  if (!file)
+    throw CompilerError(IO_ERROR, "Failed to open file: " + filePath.string());
+  size_t lineCount = 0;
+  std::string line;
+  while (std::getline(file, line))
+    lineCount++;
+  file.close();
+  return lineCount;
+}
+
 /**
  * Execute external command. Used to execute compiled binaries
  *

src/util/FileUtil.h

@@ -19,6 +19,7 @@ class FileUtil {
 public:
   static void writeToFile(const std::filesystem::path &fileName, const std::string &fileContent);
   static std::string getFileContent(const std::filesystem::path &filePath);
+  static size_t getLineCount(const std::filesystem::path &filePath);
   static ExecResult exec(const std::string &command);
   static bool isCommandAvailable(const std::string &cmd);
   static bool isGraphvizInstalled();