* Create api::WriteBatch "port" of FIRWriteBatch.
* Make FIRWriteBatch a wrapper around an api::WriteBatch (and a FSTUserDataConverter for parsing input).
* Make error_apple definitions out-of-line
* Add util::MakeCallback
Translates between API completion handlers that take just an NSError and
the equivalent std::function that accepts util::Status.
* Port DocumentReference::Completion to a std::function callback
* Port Firestore::ErrorCompletions to StatusCallback
* Port transaction-related completions to C++
* Remove now-unused FSTVoidIDErrorBlock
* Fix tunneling of Firestore-generated NSErrors.
Remove MakeStatus(NSError*) because it has different results from
Status::FromNSError. Ensure that user-supplied errors created in
transactions tunnel through correctly.
* Fix a couple small issues I tripped over today.
1. Fix primeBackend so it uses an isolated FIRFirestore* instance. I ran into
an issue where tests that try to change .settings would fail if they were the
very first test run, since primeBackend had already configured the client and
so settings could no longer be changed.
2. Remove FIRFirestore.client and make api::Firestore.client() assert client is configured.
Extract useful bits of FSTUserDataConverter for use in C++:
* Migrate FSTParsedSetData to core::ParsedSetData
* Migrate FSTParsedUpdateData to core::ParsedUpdateData
* Migrate FSTParseContext to core::ParseContext
* Split ParseAccumulator out of ParseContext to make ownership easier
Also:
* Remove dead code (handled in parseSentinelFieldValue)
* Flatten App/iOS/Supporting Files into the parent
* port FieldMask to C++
* address changes
* address changes
* fix test
* address change
* Port transform operations (FSTTransformOperation, FSTServerTimestampTransform) to C++
* address changes
* address changes
* address changes
* implement `FieldTransform` in C++
* port `FieldTransform`
* make `fieldTransforms` shared inside `context`
* Implement Precondition in C++ w/o test yet
* add unit test for `Precondition`
* port `Precondition`
* address changes
* address changes
* fix bugs for integration test
* address changes
* fix lint
* address changes
* address changes
* Move all Firestore files to Objective-C++
* Update project file references
* Don't use module imports from Objective-C++
* Use extern "C" for C-accessible globals
* Work around more stringent type checking in Objective-C++
* NSMutableDictionary ivars aren't implicitly casted to NSDictionary
* FSTMaybeDocument callback can't be passed a function that accepts
FSTDocument
* NSComparisonResult can't be multiplied by -1 without casting
* Add a #include <inttypes.h> where needed
* Avoid using C++ keywords as variables
* Remove #if __cplusplus guards
Michael Lehenbauer