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fix: Clang 19 -Wc++20-extensions warning (#2910)

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-Added INTERNAL_CATCH_TEMPLATE_TEST_CASE_HANDLE_EMPTY macro for Clang 19+
- Modified template test case macro expansion path for Clang 19+
- Keeps original behavior for other compilers and older Clang versions
This commit is contained in:
abhishekbelgaonkar23 2024-11-16 13:41:56 +05:30
parent 506276c592
commit 156d28ed7c
1 changed files with 93 additions and 85 deletions
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26
src/catch2/catch_template_test_macros.hpp
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@ -21,11 +21,22 @@
#include <catch2/internal/catch_template_test_registry.hpp>
#include <catch2/internal/catch_preprocessor.hpp>
#if defined(__clang__) && (__clang_major__ >= 19)
#define INTERNAL_CATCH_TEMPLATE_TEST_CASE_HANDLE_EMPTY(...) \
INTERNAL_CATCH_TEMPLATE_TEST_CASE_2( \
INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ), \
INTERNAL_CATCH_UNIQUE_NAME( CATCH2_INTERNAL_TEMPLATE_TEST_ ), \
__VA_ARGS__ \
)
#else
#define INTERNAL_CATCH_TEMPLATE_TEST_CASE_HANDLE_EMPTY(...) \
INTERNAL_CATCH_TEMPLATE_TEST_CASE(__VA_ARGS__)
#endif
#if defined(CATCH_CONFIG_PREFIX_ALL) && !defined(CATCH_CONFIG_DISABLE)
#ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
#define CATCH_TEMPLATE_TEST_CASE( ... ) INTERNAL_CATCH_TEMPLATE_TEST_CASE( __VA_ARGS__ )
#define CATCH_TEMPLATE_TEST_CASE(...) INTERNAL_CATCH_TEMPLATE_TEST_CASE_HANDLE_EMPTY(__VA_ARGS__)
#define CATCH_TEMPLATE_TEST_CASE_SIG(...) INTERNAL_CATCH_TEMPLATE_TEST_CASE_SIG(__VA_ARGS__)
#define CATCH_TEMPLATE_TEST_CASE_METHOD(className, ...) INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD(className, __VA_ARGS__)
#define CATCH_TEMPLATE_TEST_CASE_METHOD_SIG(className, ...) INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_SIG(className, __VA_ARGS__)
@ -36,7 +47,7 @@
#define CATCH_TEMPLATE_LIST_TEST_CASE(...) INTERNAL_CATCH_TEMPLATE_LIST_TEST_CASE(__VA_ARGS__)
#define CATCH_TEMPLATE_LIST_TEST_CASE_METHOD(className, ...) INTERNAL_CATCH_TEMPLATE_LIST_TEST_CASE_METHOD(className, __VA_ARGS__)
#else
#define CATCH_TEMPLATE_TEST_CASE( ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE( __VA_ARGS__ ) )
#define CATCH_TEMPLATE_TEST_CASE(...) INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_TEMPLATE_TEST_CASE_HANDLE_EMPTY(__VA_ARGS__))
#define CATCH_TEMPLATE_TEST_CASE_SIG(...) INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_TEMPLATE_TEST_CASE_SIG(__VA_ARGS__))
#define CATCH_TEMPLATE_TEST_CASE_METHOD(className, ...) INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD(className, __VA_ARGS__))
#define CATCH_TEMPLATE_TEST_CASE_METHOD_SIG(className, ...) INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_SIG(className, __VA_ARGS__))
@ -62,7 +73,6 @@
#define CATCH_TEMPLATE_TEST_CASE_METHOD_SIG(className, ...) INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_SIG_NO_REGISTRATION(className, __VA_ARGS__))
#endif
// When disabled, these can be shared between proper preprocessor and MSVC preprocessor
#define CATCH_TEMPLATE_PRODUCT_TEST_CASE(...) CATCH_TEMPLATE_TEST_CASE(__VA_ARGS__)
#define CATCH_TEMPLATE_PRODUCT_TEST_CASE_SIG(...) CATCH_TEMPLATE_TEST_CASE(__VA_ARGS__)
#define CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD(className, ...) CATCH_TEMPLATE_TEST_CASE_METHOD(className, __VA_ARGS__)
@ -73,7 +83,7 @@
#elif !defined(CATCH_CONFIG_PREFIX_ALL) && !defined(CATCH_CONFIG_DISABLE)
#ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
#define TEMPLATE_TEST_CASE( ... ) INTERNAL_CATCH_TEMPLATE_TEST_CASE( __VA_ARGS__ )
#define TEMPLATE_TEST_CASE(...) INTERNAL_CATCH_TEMPLATE_TEST_CASE_HANDLE_EMPTY(__VA_ARGS__)
#define TEMPLATE_TEST_CASE_SIG(...) INTERNAL_CATCH_TEMPLATE_TEST_CASE_SIG(__VA_ARGS__)
#define TEMPLATE_TEST_CASE_METHOD(className, ...) INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD(className, __VA_ARGS__)
#define TEMPLATE_TEST_CASE_METHOD_SIG(className, ...) INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_SIG(className, __VA_ARGS__)
@ -84,7 +94,7 @@
#define TEMPLATE_LIST_TEST_CASE(...) INTERNAL_CATCH_TEMPLATE_LIST_TEST_CASE(__VA_ARGS__)
#define TEMPLATE_LIST_TEST_CASE_METHOD(className, ...) INTERNAL_CATCH_TEMPLATE_LIST_TEST_CASE_METHOD(className, __VA_ARGS__)
#else
#define TEMPLATE_TEST_CASE( ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE( __VA_ARGS__ ) )
#define TEMPLATE_TEST_CASE(...) INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_TEMPLATE_TEST_CASE_HANDLE_EMPTY(__VA_ARGS__))
#define TEMPLATE_TEST_CASE_SIG(...) INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_TEMPLATE_TEST_CASE_SIG(__VA_ARGS__))
#define TEMPLATE_TEST_CASE_METHOD(className, ...) INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD(className, __VA_ARGS__))
#define TEMPLATE_TEST_CASE_METHOD_SIG(className, ...) INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_SIG(className, __VA_ARGS__))
@ -110,7 +120,6 @@
#define TEMPLATE_TEST_CASE_METHOD_SIG(className, ...) INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_SIG_NO_REGISTRATION(className, __VA_ARGS__))
#endif
// When disabled, these can be shared between proper preprocessor and MSVC preprocessor
#define TEMPLATE_PRODUCT_TEST_CASE(...) TEMPLATE_TEST_CASE(__VA_ARGS__)
#define TEMPLATE_PRODUCT_TEST_CASE_SIG(...) TEMPLATE_TEST_CASE(__VA_ARGS__)
#define TEMPLATE_PRODUCT_TEST_CASE_METHOD(className, ...) TEMPLATE_TEST_CASE_METHOD(className, __VA_ARGS__)
@ -118,7 +127,6 @@
#define TEMPLATE_LIST_TEST_CASE(...) TEMPLATE_TEST_CASE(__VA_ARGS__)
#define TEMPLATE_LIST_TEST_CASE_METHOD(className, ...) TEMPLATE_TEST_CASE_METHOD(className, __VA_ARGS__)
#endif // end of user facing macro declarations
#endif
#endif // CATCH_TEMPLATE_TEST_MACROS_HPP_INCLUDED
#endif // CATCH_TEMPLATE_TEST_MAC