`GPBUnknownFields` additions:
- Provide `Optional` based apis for the `getFirst*` apis.
- Map the `NSFastEnumeration` over as a `Sequence` to support looping over the fields.
`GPBUnknownField` addition:
- Add an `enum` with associated values to provide a more type-safe way for inspection.
PiperOrigin-RevId: 649090744
- Let Xcode 8 update settings on the projects/schemes.
- Migrate Swift tests to Swift 3 syntax.
- Update the build/test script:
- Require Xcode 8 (because of the Swift 3 requirement for tests)
- Update the devices to what Xcode 8 has (8.x simulator seem to fail even
though they can be downloaded in Xcode 8)
- Update the travis images to ones with Xcode 8.
Add the `nullable` qualifier to return types of Objective-C methods that
can return a nil due to errors. This change makes these methods
compatible with the Swift 2 try-catch syntax.
Note: Breaking API change on the Dictionary classes.
The numeric value classes were using "Value" in the naming, but this silently
collided with the KVC category on NSObject; meaning KVC code could break up a
keypath and call these selectors with the wrong types leading to crashes (even
though the code all would compile cleanly).
- Rename the methods to use the "type" instead of literal "Value".
- Update all the impls and tests.
- Enable the warning that will catch issues like this in the future.
Fixes https://github.com/google/protobuf/issues/1616
- Let Xcode update the projects, schemes, and info.plists.
- Add workaround for shallow analyzer issues in current Xcode versions (deep analyze gets things correct).
- Tweak the Swift based tests to avoid warnings from Xcode 7's XCTest using optionals for autoenclosure results.
- No longer tag the ObjC iOS travis test as flaky, xctool seems to manage the simulator pretty well.
- 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.