diff options
Diffstat (limited to 'absl/flags')
| -rw-r--r-- | absl/flags/flag.h | 10 | ||||
| -rw-r--r-- | absl/flags/internal/flag.h | 8 |
2 files changed, 11 insertions, 7 deletions
diff --git a/absl/flags/flag.h b/absl/flags/flag.h index bb917654..4cc8ae37 100644 --- a/absl/flags/flag.h +++ b/absl/flags/flag.h @@ -333,8 +333,9 @@ ABSL_NAMESPACE_END ABSL_FLAG_IMPL_FLAGNAME(#name), ABSL_FLAG_IMPL_FILENAME(), \ absl::flags_internal::HelpArg<AbslFlagHelpGenFor##name>(0), \ &AbslFlagsInitFlag##name}; \ - extern bool FLAGS_no##name; \ - bool FLAGS_no##name = ABSL_FLAG_IMPL_REGISTRAR(Type, FLAGS_##name) + extern absl::flags_internal::FlagRegistrarEmpty FLAGS_no##name; \ + absl::flags_internal::FlagRegistrarEmpty FLAGS_no##name = \ + ABSL_FLAG_IMPL_REGISTRAR(Type, FLAGS_##name) #else // MSVC version uses aggregate initialization. We also do not try to // optimize away help wrapper. @@ -345,8 +346,9 @@ ABSL_NAMESPACE_END ABSL_CONST_INIT absl::Flag<Type> FLAGS_##name{ \ ABSL_FLAG_IMPL_FLAGNAME(#name), ABSL_FLAG_IMPL_FILENAME(), \ &AbslFlagHelpGenFor##name::NonConst, &AbslFlagsInitFlag##name}; \ - extern bool FLAGS_no##name; \ - bool FLAGS_no##name = ABSL_FLAG_IMPL_REGISTRAR(Type, FLAGS_##name) + extern absl::flags_internal::FlagRegistrarEmpty FLAGS_no##name; \ + absl::flags_internal::FlagRegistrarEmpty FLAGS_no##name = \ + ABSL_FLAG_IMPL_REGISTRAR(Type, FLAGS_##name) #endif // ABSL_RETIRED_FLAG diff --git a/absl/flags/internal/flag.h b/absl/flags/internal/flag.h index c1bf8652..ae42dedc 100644 --- a/absl/flags/internal/flag.h +++ b/absl/flags/internal/flag.h @@ -648,6 +648,7 @@ void* FlagOps(FlagOp op, const void* v1, void* v2, void* v3) { // This class facilitates Flag object registration and tail expression-based // flag definition, for example: // ABSL_FLAG(int, foo, 42, "Foo help").OnUpdate(NotifyFooWatcher); +struct FlagRegistrarEmpty {}; template <typename T, bool do_register> class FlagRegistrar { public: @@ -660,9 +661,10 @@ class FlagRegistrar { return *this; } - // Make the registrar "die" gracefully as a bool on a line where registration - // happens. Registrar objects are intended to live only as temporary. - operator bool() const { return true; } // NOLINT + // Make the registrar "die" gracefully as an empty struct on a line where + // registration happens. Registrar objects are intended to live only as + // temporary. + operator FlagRegistrarEmpty() const { return {}; } // NOLINT private: Flag<T>* flag_; // Flag being registered (not owned). |