Overdue followup to https://github.com/protocolbuffers/protobuf/pull/7173
Since all the files are at the same level as the runtime headers, there is no
need for things to be framework based imports, they should all just work like
the other headers do.
- Directly generate the bundled header imports into the preamble section when
generating for a bundled proto.
- Update the preamble generation to skip the CPP wrapper when generating for a
bundled proto file.
- Regenerate the WKTs.
- Update GPBProtocolBuffer.h/GPBWellKnownTypes.h to also skip the CPP wrapping.
GPB_USE_PROTOBUF_FRAMEWORK_IMPORTS in the podspec and non bundled files still
has to exist because that comes into play for those files to find the runtime
headers.
- Bump the version marker in the generated code.
- Set the flag to say clear on zero is known.
- Set clear on zero for proto3 optional fields that aren't tagged as optional.
- Also tweak the call from some C generated code to use different apis with
better validation.
- Mark the ObjC generator as supporting the proto3 optional feature.
- Regenerate the WKTs to get the new flags.
There are have been a few issues around people using case sensitive file systems
what Xcode/clang does when looking at the paths. In attempts to solve one set of
warnings, new warnings/errors happened in different setup. So, to hopefully put
these problem away for got, move the WKTs to be at the same level as the other
headers.
- Revert "Override CocoaPods module to lowercase (#6464)"
This reverts commit 479ba8226b.
- Move WKTs to the objectivec directory and make the old headers shim back to
the new locations.
- Update objectivec/generate_well_known_types.sh to check them one at a time
and to deal with the new locations for them.
Fixes#6803
