Putting it into BUILD files unintentionally forces it on all our downstream users. Instead, we just want to enable this during testing and let them choose for themselves in their builds.
Note, that this expands the scope of -Werror to our entire repo for CI, so a bunch of fixes and opt-outs had to be applied to get this change passing.
Closed#14714
PiperOrigin-RevId: 666903224
## Issue
When an object that is an instance of a string-derived class is passed to a string field in a protobuf message in Ruby, it results in a `Google::Protobuf::TypeError`.
### Steps to reproduce
```rb
~/src/github.com/protocolbuffers/protobuf/ruby/tests ❯❯❯ irb -I .
irb(main):001:0> require 'basic_test_pb'
=> true
irb(main):002:0> myString = Class.new(String)
=> #<Class:0x00000001531540d8>
irb(main):003:0> str = myString.new("foo")
=> "foo"
irb(main):004:0> BasicTest::TestMessage.new(optional_string: "foo")
=> <BasicTest::TestMessage: optional_string: "foo", repeated_int32: [], repeated_int64: [], repeated_uint32: [], repeated_uint64: [], repeated_bool: [], repeated_float: [], repeated_double: [], repeated_string: [], repeated_bytes: [], repeated_msg: [], repeated_enum: []>
irb(main):005:0> BasicTest::TestMessage.new(optional_string: str)
(irb):5:in `initialize': Invalid argument for string field 'optional_string' (given #<Class:0x00000001531540d8>). (Google::Protobuf::TypeError)
irb(main):006:0>
```
## Fix
The issue appears to be caused by the field checking mechanism not properly handling instances of classes that inherit from basic types like String. My proposed solution is to improve the type checking for string fields to consider not just String instances but also instances of subclasses of String.
## Impact
The changes will allow instances of classes derived from String to be passed to string fields without any error.
This is a backwards-compatible change and will not affect the existing behaviour with standard String instances.
Closes#13818
COPYBARA_INTEGRATE_REVIEW=https://github.com/protocolbuffers/protobuf/pull/13818 from NotFounds:support-string-subclass-for-ruby 2d2796c4f9
PiperOrigin-RevId: 590941235
* WIP.
* WIP.
* WIP.
* WIP.
* WIP.
* WIP.
* Added some missing files.
* WIP.
* WIP.
* Updated upb.
* Extension loads, but crashes immediately.
* Gets through the test suite without SEGV!
Still a lot of bugs to fix, but it is a major step!
214 tests, 378 assertions, 37 failures, 147 errors, 0 pendings, 0 omissions, 0 notifications
14.0187% passed
* Test and build for Ruby 3.0
* Fixed a few more bugs, efficient #inspect is almost done.
214 tests, 134243 assertions, 30 failures, 144 errors, 0 pendings, 0 omissions, 0 notifications
18.6916% passed
* Fixed message hash initialization and encode depth checking.
214 tests, 124651 assertions, 53 failures, 70 errors, 0 pendings, 0 omissions, 0 notifications
42.5234% passed
* A bunch of fixes to failing tests, now 70% passing.
214 tests, 202091 assertions, 41 failures, 23 errors, 0 pendings, 0 omissions, 0 notifications
70.0935% passed
* More than 80% of tests are passing now.
214 tests, 322331 assertions, 30 failures, 9 errors, 0 pendings, 0 omissions, 0 notifications
81.7757% passed
Unfortunately there is also a sporadic bug/segfault hanging around
that appears to be GC-related.
* Add linux/ruby30 and macos/ruby30
* Use rvm master for 3.0.0-preview2
* Over 90% of tests are passing!
214 tests, 349898 assertions, 15 failures, 1 errors, 0 pendings, 0 omissions, 0 notifications
92.5234% passed
* Passes all tests!
214 tests, 369388 assertions, 0 failures, 0 errors, 0 pendings, 0 omissions, 0 notifications
100% passed
* A bunch of cleanup.
1. Removed a bunch of internal-only symbols from headers.
2. Required a frozen check to get a non-const pointer to a map or array.
3. De-duplicated the code to get a type argument for Map/RepeatedField.
* Removed a bunch more stuff from protobuf.h. There is an intermittent assert failure.
Intermittent failure:
ruby: ../../../../ext/google/protobuf_c/protobuf.c:263: ObjectCache_Add: Assertion `rb_funcall(obj_cache2, (__builtin_constant_p("[]") ? __extension__ ({ static ID rb_intern_id_cache; if (!rb_intern_id_cache) rb_intern_id_cache = rb_intern2((("[]")
), (long)strlen(("[]"))); (ID) rb_intern_id_cache; }) : rb_intern("[]")), 1, key_rb) == val' failed
* Removed a few more things from protobuf.h.
* Ruby 3.0.0-preview2 to 3.0.0
* Require rake-compiler-dock >= 1.1.0
* More progress, fighting with the object cache.
* Passes on all Ruby versions!
* Updated and clarified comment regarding WeakMap.
* Fixed the wyhash compile.
* Fixed conformance tests for Ruby.
Conformance results now look like:
RUBYLIB=../ruby/lib:. ./conformance-test-runner --enforce_recommended --failure_list failure_list_ruby.txt --text_format_failure_list text_format_failure_list_ruby.txt ./conformance_ruby.rb
CONFORMANCE TEST BEGIN ====================================
CONFORMANCE SUITE PASSED: 1955 successes, 0 skipped, 58 expected failures, 0 unexpected failures.
CONFORMANCE TEST BEGIN ====================================
CONFORMANCE SUITE PASSED: 0 successes, 111 skipped, 8 expected failures, 0 unexpected failures.
Fixes include:
- Changed Ruby compiler to no longer reject proto2 maps.
- Changed Ruby compiler to emit a warning when proto2 extensions are
present instead of rejecting the .proto file completely.
- Fixed conformance tests to allow proto2 and look up message by name
instead of hardcoding a specific list of messages.
- Fixed conformance test to support the "ignore unknown" option for
JSON.
- Fixed conformance test to properly report serialization errors.
* Removed debug printf and fixed #inspect for floats.
* Fixed compatibility test to have proper semantics for #to_json.
* Updated Makefile.am with new file list.
* Don't try to copy wyhash when inside Docker.
* Fixed bug where we would forget that a sub-object is frozen in Ruby >=2.7.
* Avoid exporting unneeded symbols and refactored a bit of code.
* Some more refactoring.
* Simplified and added more comments.
* Some more comments and simplification. Added a missing license block.
Co-authored-by: Masaki Hara <hara@wantedly.com>