This updates kMapWithProto2EnumValue -> kLegacyEnumIsClosedBit s.t. this bit now indicates closedness for enum fields as well, not just maps with enum values.
PiperOrigin-RevId: 535782238
This is a macro on some (older) versions of GCC, and macOS, and Windows. Sigh. I moved the `#undef` block to a common section. I also took the opportunity to add a regression test for all these macros that need to be `#undef`'d.
Part of the work for googleapis/google-cloud-cpp#8125
Closes#12903
PiperOrigin-RevId: 535649278
This will require C++14 (or higher) for the `libproto*` targets **and** anything that links them. If multiple dependencies have different C++ requirements, CMake will use the maximum version. It does not work with pkg-config, and does not work if the downstream dependency forcibly downgrades the compiler to C++11 (or lower). But prevents many problems. Note that if Abseil was compiled with C++17 it will require C++17 and that will propagate through Protobuf.
Closes#12901
COPYBARA_INTEGRATE_REVIEW=https://github.com/protocolbuffers/protobuf/pull/12901 from coryan:feat-cmake-use-target-compile-features 95084ac691
PiperOrigin-RevId: 535579816
Prior to this CL, asserts have no effect for Ruby 3+, because Ruby unconditionally defines `NDEBUG`: https://bugs.ruby-lang.org/issues/18777
We work around this by doing `#undef NDEBUG` right after including Ruby, if `NDEBUG` was not previously defined.
PiperOrigin-RevId: 535359088
This will ensure that the message is using the correct reflection object, rather than just the correct descriptor. This distinction only matters with dynamic messages, where multiple reflection objects can exist for the same descriptor.
Failing to pass this check can lead to UB and crashes.
PiperOrigin-RevId: 535351694
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