Chiebot-Mirror/protobuf - protobuf - Gitea: Git with a cup of tea

Author	SHA1	Message	Date
Joshua Haberman	6e1cbdfe09	Added fuzzer for descriptor parsing/serialization, and fixed several bugs. The initial motivation for this change was to fix a bug found by fuzzing. The old fuzz test (built on `cc_fuzz_target()`) detected an infinite loop if a bytes field default has an unterminated `\x` escape. To fix this bug while expanding fuzz coverage, I created a fuzz test that verifies that we can do a lossless round trip from descriptor -> DefPool -> descriptor. We use C++ as the source of truth for whether a descriptor is valid or not, and what the canonical serialization back to protobuf form should be. I wrote the new fuzz test using go/FuzzTest, which makes it easier and more readable to use an arbitrary `FileDescriptorSet` as input, while adding test cases for regressions. The fuzz test highlighted a handful of errors that I subsequently fixed and added regression tests for: 1. The aforementioned unterminated `\x` bug. 2. We were not propagating the `edition` field. 3. We were missing the CheckIdent() check in a few places. 4. We were rejecting files with empty name, whereas C++ allows this. 5. There were a few bugs with escaping string defaults. Since FuzzTest is Clang-only, I split the `FUZZ_TEST()` invocation from the regression tests, since the latter are portable and should be run on all platforms. Only `FUZZ_TEST()` itself is in a google3/Clang-only file. PiperOrigin-RevId: 506997362	2 years ago
Eric Salo	efb166b3b0	restore the declaration of _upb_Hash() It turns out that this function is, annoyingly, being used by Ruby. PiperOrigin-RevId: 490305008	2 years ago
Eric Salo	70566461f9	replace and repair the integer hash table iterator: - replace all instances of the deprecated iterator with the much nicer new one - fix a bug which caused the new iterator to skip all values in the hash array - fix a bug which caused the new iterator to skip the first value in the hash table - delete the old iterator code - also replace most uses of the deprecated string hash table iterator PiperOrigin-RevId: 489093240	2 years ago
Joshua Haberman	677b928a44	Removed a few more uses of std::iterator that I missed before. PiperOrigin-RevId: 489072541	2 years ago
Joshua Haberman	7c20721f3e	Removed use of std::iterator, which is deprecated in C++17. PiperOrigin-RevId: 489038355	2 years ago
Joshua Haberman	023c4da591	Enabled TAP testing for upb on Windows via Lexan. We disable targets that are not currently working on Windows. PiperOrigin-RevId: 488560033	2 years ago
Eric Salo	b3cb3fbea8	create upb/hash/ The next lowest build target to scrub is the hash table. We already have a few other things called 'table' (mini table, fast table) so let's just go with 'hash' here. Split apart the headers into int and str branches sharing common definitions. Leave the core functions in a single .c for inlining. PiperOrigin-RevId: 488388767	2 years ago