From bc524d70253a4ab2fe40c3ca3e5666e267c0a4d1 Mon Sep 17 00:00:00 2001
From: Lexi Winter <lexi@le-fay.org>
Date: Sun, 29 Jun 2025 19:25:29 +0100
Subject: import catch2 3.8.1

---
 .../catch_exception_translator_registry.cpp        | 87 ++++++++++++++++++++++
 1 file changed, 87 insertions(+)
 create mode 100644 src/catch2/internal/catch_exception_translator_registry.cpp

(limited to 'src/catch2/internal/catch_exception_translator_registry.cpp')

diff --git a/src/catch2/internal/catch_exception_translator_registry.cpp b/src/catch2/internal/catch_exception_translator_registry.cpp
new file mode 100644
index 0000000..1eb6114
--- /dev/null
+++ b/src/catch2/internal/catch_exception_translator_registry.cpp
@@ -0,0 +1,87 @@
+
+//              Copyright Catch2 Authors
+// Distributed under the Boost Software License, Version 1.0.
+//   (See accompanying file LICENSE.txt or copy at
+//        https://www.boost.org/LICENSE_1_0.txt)
+
+// SPDX-License-Identifier: BSL-1.0
+#include <catch2/internal/catch_exception_translator_registry.hpp>
+#include <catch2/internal/catch_compiler_capabilities.hpp>
+#include <catch2/internal/catch_enforce.hpp>
+#include <catch2/internal/catch_test_failure_exception.hpp>
+#include <catch2/internal/catch_move_and_forward.hpp>
+
+#include <exception>
+
+namespace Catch {
+
+#if !defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
+    namespace {
+        static std::string tryTranslators(
+            std::vector<
+                Detail::unique_ptr<IExceptionTranslator const>> const& translators ) {
+            if ( translators.empty() ) {
+                std::rethrow_exception( std::current_exception() );
+            } else {
+                return translators[0]->translate( translators.begin() + 1,
+                                                  translators.end() );
+            }
+        }
+
+    }
+#endif //!defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
+
+    ExceptionTranslatorRegistry::~ExceptionTranslatorRegistry() = default;
+
+    void ExceptionTranslatorRegistry::registerTranslator( Detail::unique_ptr<IExceptionTranslator>&& translator ) {
+        m_translators.push_back( CATCH_MOVE( translator ) );
+    }
+
+#if !defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
+    std::string ExceptionTranslatorRegistry::translateActiveException() const {
+        // Compiling a mixed mode project with MSVC means that CLR
+        // exceptions will be caught in (...) as well. However, these do
+        // do not fill-in std::current_exception and thus lead to crash
+        // when attempting rethrow.
+        // /EHa switch also causes structured exceptions to be caught
+        // here, but they fill-in current_exception properly, so
+        // at worst the output should be a little weird, instead of
+        // causing a crash.
+        if ( std::current_exception() == nullptr ) {
+            return "Non C++ exception. Possibly a CLR exception.";
+        }
+
+        // First we try user-registered translators. If none of them can
+        // handle the exception, it will be rethrown handled by our defaults.
+        try {
+            return tryTranslators(m_translators);
+        }
+        // To avoid having to handle TFE explicitly everywhere, we just
+        // rethrow it so that it goes back up the caller.
+        catch( TestFailureException& ) {
+            std::rethrow_exception(std::current_exception());
+        }
+        catch( TestSkipException& ) {
+            std::rethrow_exception(std::current_exception());
+        }
+        catch( std::exception const& ex ) {
+            return ex.what();
+        }
+        catch( std::string const& msg ) {
+            return msg;
+        }
+        catch( const char* msg ) {
+            return msg;
+        }
+        catch(...) {
+            return "Unknown exception";
+        }
+    }
+
+#else // ^^ Exceptions are enabled // Exceptions are disabled vv
+    std::string ExceptionTranslatorRegistry::translateActiveException() const {
+        CATCH_INTERNAL_ERROR("Attempted to translate active exception under CATCH_CONFIG_DISABLE_EXCEPTIONS!");
+    }
+#endif
+
+}
-- 
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