Move CATCH_INTERNAL_STRINGIFY macro into its own header

src/catch2/catch_all.hpp

@@ -86,6 +86,7 @@
 #include <catch2/internal/catch_platform.hpp>
 #include <catch2/internal/catch_polyfills.hpp>
 #include <catch2/internal/catch_preprocessor.hpp>
+#include <catch2/internal/catch_preprocessor_internal_stringify.hpp>
 #include <catch2/internal/catch_preprocessor_remove_parens.hpp>
 #include <catch2/internal/catch_random_number_generator.hpp>
 #include <catch2/internal/catch_random_seed_generation.hpp>

src/catch2/internal/catch_preprocessor_internal_stringify.hpp

@@ -0,0 +1,19 @@
+
+//              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
+#ifndef CATCH_PREPROCESSOR_INTERNAL_STRINGIFY_HPP_INCLUDED
+#define CATCH_PREPROCESSOR_INTERNAL_STRINGIFY_HPP_INCLUDED
+
+#include <catch2/catch_user_config.hpp>
+
+#if !defined(CATCH_CONFIG_DISABLE_STRINGIFICATION)
+  #define CATCH_INTERNAL_STRINGIFY(...) #__VA_ARGS__##_catch_sr
+#else
+  #define CATCH_INTERNAL_STRINGIFY(...) "Disabled by CATCH_CONFIG_DISABLE_STRINGIFICATION"_catch_sr
+#endif
+
+#endif // CATCH_PREPROCESSOR_INTERNAL_STRINGIFY_HPP_INCLUDED

src/catch2/internal/catch_test_macro_impl.hpp

@@ -10,6 +10,7 @@
 
 #include <catch2/catch_user_config.hpp>
 #include <catch2/internal/catch_assertion_handler.hpp>
+#include <catch2/internal/catch_preprocessor_internal_stringify.hpp>
 #include <catch2/interfaces/catch_interfaces_capture.hpp>
 #include <catch2/internal/catch_stringref.hpp>
 #include <catch2/internal/catch_source_line_info.hpp>
@@ -22,12 +23,6 @@
 
 #if !defined(CATCH_CONFIG_DISABLE)
 
-#if !defined(CATCH_CONFIG_DISABLE_STRINGIFICATION)
-  #define CATCH_INTERNAL_STRINGIFY(...) #__VA_ARGS__##_catch_sr
-#else
-  #define CATCH_INTERNAL_STRINGIFY(...) "Disabled by CATCH_CONFIG_DISABLE_STRINGIFICATION"_catch_sr
-#endif
-
 #if defined(CATCH_CONFIG_FAST_COMPILE) || defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
 
 ///////////////////////////////////////////////////////////////////////////////

src/catch2/matchers/internal/catch_matchers_impl.hpp

@@ -8,9 +8,14 @@
 #ifndef CATCH_MATCHERS_IMPL_HPP_INCLUDED
 #define CATCH_MATCHERS_IMPL_HPP_INCLUDED
 
-#include <catch2/internal/catch_test_macro_impl.hpp>
+#include <catch2/internal/catch_assertion_handler.hpp>
+#include <catch2/internal/catch_source_line_info.hpp>
+#include <catch2/internal/catch_decomposer.hpp>
+#include <catch2/internal/catch_preprocessor_internal_stringify.hpp>
 #include <catch2/internal/catch_move_and_forward.hpp>
 
+#include <string>
+
 namespace Catch {
 
     template<typename ArgT, typename MatcherT>

src/catch2/meson.build

@@ -110,6 +110,7 @@ internal_headers = [
   'internal/catch_platform.hpp',
   'internal/catch_polyfills.hpp',
   'internal/catch_preprocessor.hpp',
+  'internal/catch_preprocessor_internal_stringify.hpp',
   'internal/catch_preprocessor_remove_parens.hpp',
   'internal/catch_random_number_generator.hpp',
   'internal/catch_random_seed_generation.hpp',