Mark some extra classes final

src/catch2/benchmark/detail/catch_benchmark_function.hpp

@@ -41,7 +41,7 @@ namespace Catch {
                     callable& operator=(callable&&) = default;
                 };
                 template <typename Fun>
-                struct model : public callable {
+                struct model final : public callable {
                     model(Fun&& fun_) : fun(CATCH_MOVE(fun_)) {}
                     model(Fun const& fun_) : fun(fun_) {}
 

src/catch2/benchmark/detail/catch_run_for_at_least.cpp

@@ -14,7 +14,7 @@
 namespace Catch {
     namespace Benchmark {
         namespace Detail {
-            struct optimized_away_error : std::exception {
+            struct optimized_away_error final : std::exception {
                 const char* what() const noexcept override;
             };
 

src/catch2/catch_translate_exception.hpp

@@ -22,7 +22,7 @@ namespace Catch {
 
     class ExceptionTranslatorRegistrar {
         template<typename T>
-        class ExceptionTranslator : public IExceptionTranslator {
+        class ExceptionTranslator final : public IExceptionTranslator {
         public:
 
             constexpr ExceptionTranslator( std::string(*translateFunction)( T const& ) )

src/catch2/internal/catch_decomposer.hpp

@@ -193,7 +193,7 @@ namespace Catch {
     void formatReconstructedExpression( std::ostream &os, std::string const& lhs, StringRef op, std::string const& rhs );
 
     template<typename LhsT, typename RhsT>
-    class BinaryExpr  : public ITransientExpression {
+    class BinaryExpr final : public ITransientExpression {
         LhsT m_lhs;
         StringRef m_op;
         RhsT m_rhs;
@@ -269,7 +269,7 @@ namespace Catch {
     };
 
     template<typename LhsT>
-    class UnaryExpr : public ITransientExpression {
+    class UnaryExpr final : public ITransientExpression {
         LhsT m_lhs;
 
         void streamReconstructedExpression( std::ostream &os ) const override {

src/catch2/internal/catch_enum_values_registry.hpp

@@ -20,7 +20,7 @@ namespace Catch {
 
         Catch::Detail::unique_ptr<EnumInfo> makeEnumInfo( StringRef enumName, StringRef allValueNames, std::vector<int> const& values );
 
-        class EnumValuesRegistry : public IMutableEnumValuesRegistry {
+        class EnumValuesRegistry final : public IMutableEnumValuesRegistry {
 
             std::vector<Catch::Detail::unique_ptr<EnumInfo>> m_enumInfos;
 

src/catch2/internal/catch_exception_translator_registry.hpp

@@ -15,7 +15,7 @@
 
 namespace Catch {
 
-    class ExceptionTranslatorRegistry : public IExceptionTranslatorRegistry {
+    class ExceptionTranslatorRegistry final : public IExceptionTranslatorRegistry {
     public:
         ~ExceptionTranslatorRegistry() override;
         void registerTranslator( Detail::unique_ptr<IExceptionTranslator>&& translator );

src/catch2/internal/catch_output_redirect.cpp

@@ -33,7 +33,7 @@ namespace Catch {
     namespace {
         //! A no-op implementation, used if no reporter wants output
         //! redirection.
-        class NoopRedirect : public OutputRedirect {
+        class NoopRedirect final : public OutputRedirect {
             void activateImpl() override {}
             void deactivateImpl() override {}
             std::string getStdout() override { return {}; }
@@ -70,7 +70,7 @@ namespace Catch {
          * Redirects the `std::cout`, `std::cerr`, `std::clog` streams,
          * but does not touch the actual `stdout`/`stderr` file descriptors.
          */
-        class StreamRedirect : public OutputRedirect {
+        class StreamRedirect final : public OutputRedirect {
             ReusableStringStream m_redirectedOut, m_redirectedErr;
             RedirectedStreamNew m_cout, m_cerr, m_clog;
 
@@ -181,7 +181,7 @@ namespace Catch {
          * Works by replacing the file descriptors numbered 1 and 2
          * with an open temporary file.
          */
-        class FileRedirect : public OutputRedirect {
+        class FileRedirect final : public OutputRedirect {
             TempFile m_outFile, m_errFile;
             int m_originalOut = -1;
             int m_originalErr = -1;

src/catch2/internal/catch_singletons.hpp

@@ -20,7 +20,7 @@ namespace Catch {
 
 
     template<typename SingletonImplT, typename InterfaceT = SingletonImplT, typename MutableInterfaceT = InterfaceT>
-    class Singleton : SingletonImplT, public ISingleton {
+    class Singleton final : SingletonImplT, public ISingleton {
 
         static auto getInternal() -> Singleton* {
             static Singleton* s_instance = nullptr;

src/catch2/internal/catch_tag_alias_registry.hpp

@@ -17,7 +17,7 @@
 namespace Catch {
     struct SourceLineInfo;
 
-    class TagAliasRegistry : public ITagAliasRegistry {
+    class TagAliasRegistry final : public ITagAliasRegistry {
     public:
         ~TagAliasRegistry() override;
         TagAlias const* find( std::string const& alias ) const override;

src/catch2/internal/catch_test_case_registry_impl.hpp

@@ -28,7 +28,7 @@ namespace Catch {
     std::vector<TestCaseHandle> filterTests( std::vector<TestCaseHandle> const& testCases, TestSpec const& testSpec, IConfig const& config );
     std::vector<TestCaseHandle> const& getAllTestCasesSorted( IConfig const& config );
 
-    class TestRegistry : public ITestCaseRegistry {
+    class TestRegistry final : public ITestCaseRegistry {
     public:
         void registerTest( Detail::unique_ptr<TestCaseInfo> testInfo, Detail::unique_ptr<ITestInvoker> testInvoker );
 

src/catch2/matchers/internal/catch_matchers_impl.hpp

@@ -29,7 +29,7 @@ namespace Catch {
 #endif
 
     template<typename ArgT, typename MatcherT>
-    class MatchExpr : public ITransientExpression {
+    class MatchExpr final : public ITransientExpression {
         ArgT && m_arg;
         MatcherT const& m_matcher;
     public: