adapt very old non LTS abseil-cpp

baidu · May 23, 2024 · 5a3e6c8 · 5a3e6c8
1 parent 7445b14
commit 5a3e6c8
Showing 1 changed file with 37 additions and 13 deletions.
diff --git a/src/babylon/absl_base_internal_invoke.h b/src/babylon/absl_base_internal_invoke.h
@@ -5,27 +5,52 @@
 // clang-format off
 #include BABYLON_EXTERNAL(absl/base/config.h)
 #include BABYLON_EXTERNAL(absl/base/internal/invoke.h)
-#include BABYLON_EXTERNAL(absl/meta/type_traits.h)
 // clang-format on
 
 // add some essential features for old LTS abseil-cpp
+#ifdef ABSL_LTS_RELEASE_VERSION
+
+#if ABSL_LTS_RELEASE_VERSION < 20220623L
+#define BABYLON_TMP_NEED_INVOKE_RESULT_R 1
+#endif // ABSL_LTS_RELEASE_VERSION < 20220623L
+
+#if ABSL_LTS_RELEASE_VERSION < 20200923L
+#define BABYLON_TMP_NEED_INVOKE_RESULT_T 1
+#endif // ABSL_LTS_RELEASE_VERSION < 20200923L
+
+#else // !ABSL_LTS_RELEASE_VERSION
+
 // TODO(lijiang01): some inactive repo depend on old abseil-cpp head
-//                  use header check trick to adapt them before they switch to
+//                  use macro check trick to adapt them before they switch to
 //                  some LTS
+
 // clang-format off
-#if defined(ABSL_LTS_RELEASE_VERSION) || \
-    !BABYLON_HAS_INCLUDE(                \
-        BABYLON_EXTERNAL(absl/base/internal/dynamic_annotations.h))
+#include BABYLON_EXTERNAL(absl/base/optimization.h)
+// clang-format on
+
+#ifndef ABSL_ASSUME
+#define BABYLON_TMP_NEED_INVOKE_RESULT_R 1
+#endif // ABSL_ASSUME
+
+#ifndef ABSL_HAVE_FEATURE
+#define BABYLON_TMP_NEED_INVOKE_RESULT_T 1
+#endif // ABSL_HAVE_FEATURE
+
+#endif // !ABSL_LTS_RELEASE_VERSION
+
+#if BABYLON_TMP_NEED_INVOKE_RESULT_R || BABYLON_TMP_NEED_INVOKE_RESULT_T
+// clang-format off
+#include BABYLON_EXTERNAL(absl/meta/type_traits.h)
 // clang-format on
 
 // very old abseil-cpp dont have these macros
 #ifndef ABSL_NAMESPACE_BEGIN
 #define ABSL_NAMESPACE_BEGIN
 #define ABSL_NAMESPACE_END
 #endif // ABSL_NAMESPACE_BEGIN
+#endif // BABYLON_TMP_NEED_INVOKE_RESULT_R || BABYLON_TMP_NEED_INVOKE_RESULT_T
 
-// add invoke_result_t before 20200923
-#if ABSL_LTS_RELEASE_VERSION < 20200923L
+#if BABYLON_TMP_NEED_INVOKE_RESULT_T
 namespace absl {
 ABSL_NAMESPACE_BEGIN
 namespace base_internal {
@@ -34,10 +59,9 @@ using invoke_result_t = InvokeT<F, Args...>;
 } // namespace base_internal
 ABSL_NAMESPACE_END
 } // namespace absl
-#endif // ABSL_LTS_RELEASE_VERSION < 20200923L
+#endif // BABYLON_TMP_NEED_INVOKE_RESULT_T
 
-// add invoke_result_r before 20200923
-#if ABSL_LTS_RELEASE_VERSION < 20220623L
+#if BABYLON_TMP_NEED_INVOKE_RESULT_R
 namespace absl {
 ABSL_NAMESPACE_BEGIN
 namespace base_internal {
@@ -64,7 +88,7 @@ using is_invocable_r = IsInvocableRImpl<void, R, F, Args...>;
 } // namespace base_internal
 ABSL_NAMESPACE_END
 } // namespace absl
-#endif // ABSL_LTS_RELEASE_VERSION < 20220623L
+#endif // BABYLON_TMP_NEED_INVOKE_RESULT_R
 
-#endif // defined(ABSL_LTS_RELEASE_VERSION) ||
-       // !BABYLON_HAS_INCLUDE(BABYLON_EXTERNAL(absl/base/internal/dynamic_annotations.h))
+#undef BABYLON_TMP_NEED_INVOKE_RESULT_R
+#undef BABYLON_TMP_NEED_INVOKE_RESULT_T