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.
- Don't make an OneofGenerator for synthetic oneofs.
- Update the field calculations that determine if hasbits are needed to
know about synthetic oneofs and ignore them.
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
This should reduce binary size slightly, small performance improvement, and improve linkage by forcing references to all used classes.
Note that this maintains backwards compatibility for sources generated by older protoc for the time being. If you want the benefits
you will need to recompile your protos with the newer protoc.
The generated code for enums needs atomics support, so generate the
import instead of relying on it via transitive imports. This will
make future changes to this likely likely to break generated code
and runtime support are mixed.
Followup to https://github.com/google/protobuf/pull/4184.
- Capture the version used to generated.
- Check at compile time and runtime that generated code isn't from a newer
version, also check that the min version required is also supported.
- Keep the old constants/macros/functions to special case the last version
that was working so those generated sources still work until we decide
otherwise.
- Capture the ObjC prefix used when generating the the file.
- Track the containing type on descriptors.
- Mark descriptors where the message class name got a suffix added to it.
- Expose a fullName property on Descriptors.
- Add helpers for packing/unpacking Any messages.
- Bump the ObjC runtime version number. Since we added methods and invoke them
in the generated code, ensure the code is running against a matching version.
Otherwise, someone could compile against headers, but run with a framework
that is older and get unknown selector failures. This should trip clearer
messaging.
Fixes https://github.com/google/protobuf/issues/1674
At generation time, walk the file's dependencies to see what really contains
extensions so we can generate more minimal code that only links together the
roots that provided extensions. Gets a bunch of otherwise noop code out of
the call flow when the roots are +initialized.
When building into frameworks, the generated code doesn't always have direct
access to the proto internals. Instead of opening up the access, just use the
public method to fetch the correct oneof.
Fixes https://github.com/google/protobuf/issues/1789
Working on https://github.com/google/protobuf/issues/1599, specifically:
- Turn on more warnings that the Xcode UI calls out with individual controls.
- Manually add:
-Wundef
-Wswitch-enum
- Manually add and then diable in the unittests because of XCTest's headers:
-Wreserved-id-macro
-Wdocumentation-unknown-command
- Manually add -Wdirect-ivar-access, but disable it for the unittests and in
the library code (via #pragmas to suppress it). This is done so proto users
can enable the warning.
- Add generator constant for the default framework name.
- Add generator api for making the CPP symbol from the name.
- Add generator api to see if it is a bundled proto file.
- Output a CPP conditional and two imports for the core library headers.
- Add helper for generating the #import for file headers to deal with the
framework imports.
- Add a reference from the unittests to a WKT to use that to inspect how
imports generate.
- Update the podspec to define the CPP symbol and require pods 1.0 (or later).
Fixes https://github.com/google/protobuf/issues/1457
NOTE: This is a binary breaking change as structure sizes have changed size
and/or order.
- Drop capturing field options, no other options were captured and other mobile
targeted languages don't try to capture this sort information (saved 8
bytes for every field defined (in static data and again in field descriptor
instance size data).
- No longer generate/compile in the messages/enums in descriptor.proto. If
developers need it, they should generate it and compile it in. Reduced the
overhead of the core library.
- Compute the number of has_bits actually needs to avoid over reserving.
- Let the boolean single fields store via a has_bit to avoid storage, makes
the common cases of the instance size smaller.
- Reorder some flags and down size the enums to contain the bits needed.
- Reorder the items in the structures to manually ensure they are are packed
better (especially when generating 64bit code - 8 bytes for every field,
16 bytes for every extension, instance sizes 8 bytes also).
- Split off the structure initialization so when the default is zero, the
generated static storage doesn't need to reserve the space. This is batched
at the message level, so all the fields for the message have to have zero
defaults to get the saves. By definition all proto3 syntax files fall into
this case but it also saves space for the proto2 that use the standard
defaults. (saves 8 bytes of static data for every field that had a zero
default)
- Don't track the enums defined by a message. Nothing in the runtime needs it
and it was just generation and runtime overhead. (saves 8 bytes per enum)
- Ensure EnumDescriptors are started up threadsafe in all cases.
- Split some of the Descriptor initialization into multiple methods so the
generated code isn't padded with lots of zero/nil args.
- Change how oneof info is feed to the runtime enabling us to generate less
static data (8 bytes saved per oneof for 64bit).
- Change how enum value informat is capture to pack the data and only decode
it if it ends up being needed. Avoids padding issues causing bloat of 64bit,
and removes the needs for extra pointers in addition to the data (just the
data and one pointer now).
- Add more to the ObjC dir readme.
- Merge the ExtensionField and ExtensionDescriptor to reduce overhead.
- Fix an initialization race.
- Clean up the Xcode schemes.
- Remove the class/enum filter.
- Remove some forced inline that were bloating things without proof of performance wins.
- Rename some internal types to avoid conflicts with the well know types protos.
- Drop the use of ApplyFunctions to the compiler/optimizer can do what it wants.
- Better document some possible future improvements.
- Add missing support for parsing repeated primitive fields in packed or unpacked forms.
- Improve -hash.
- Add *Count for repeated and map<> fields to avoid auto create when checking for them being set.
- Style fixups in the code.
- map<> serialization fixes and more tests.
- Autocreation of map<> fields (to match repeated fields).
- @@protoc_insertion_point(global_scope|imports).
- Fixup proto2 syntax extension support.
- Move all startup code to +initialize so it happen on class usage and not app startup.
- Have generated headers use forward declarations and move imports into generated code, reduces what is need at compile time to speed up compiled and avoid pointless rippling of rebuilds.
Adam Cozzette
Thomas Van Lenten
listonjesse
Joshua Haberman
Dave MacLachlan
Paul Beusterien
Jonathan Dierksen
Sergio Campamá