Move all Firestore Objective-C to Objective-C++ (#734)

* 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

1 files changed, 0 insertions, 84 deletions

diff --git a/Firestore/Source/Local/FSTMemoryRemoteDocumentCache.m b/Firestore/Source/Local/FSTMemoryRemoteDocumentCache.m
deleted file mode 100644
index 9bbc047..0000000
--- a/Firestore/Source/Local/FSTMemoryRemoteDocumentCache.m
+++ /dev/null
@@ -1,84 +0,0 @@
-/*
- * Copyright 2017 Google
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#import "Firestore/Source/Local/FSTMemoryRemoteDocumentCache.h"
-
-#import "Firestore/Source/Core/FSTQuery.h"
-#import "Firestore/Source/Model/FSTDocument.h"
-#import "Firestore/Source/Model/FSTDocumentDictionary.h"
-#import "Firestore/Source/Model/FSTDocumentKey.h"
-#import "Firestore/Source/Model/FSTPath.h"
-
-NS_ASSUME_NONNULL_BEGIN
-
-@interface FSTMemoryRemoteDocumentCache ()
-
-/** Underlying cache of documents. */
-@property(nonatomic, strong) FSTMaybeDocumentDictionary *docs;
-
-@end
-
-@implementation FSTMemoryRemoteDocumentCache
-
-- (instancetype)init {
-  if (self = [super init]) {
-    _docs = [FSTMaybeDocumentDictionary maybeDocumentDictionary];
-  }
-  return self;
-}
-
-- (void)shutdown {
-}
-
-- (void)addEntry:(FSTMaybeDocument *)document group:(FSTWriteGroup *)group {
-  self.docs = [self.docs dictionaryBySettingObject:document forKey:document.key];
-}
-
-- (void)removeEntryForKey:(FSTDocumentKey *)key group:(FSTWriteGroup *)group {
-  self.docs = [self.docs dictionaryByRemovingObjectForKey:key];
-}
-
-- (nullable FSTMaybeDocument *)entryForKey:(FSTDocumentKey *)key {
-  return self.docs[key];
-}
-
-- (FSTDocumentDictionary *)documentsMatchingQuery:(FSTQuery *)query {
-  FSTDocumentDictionary *result = [FSTDocumentDictionary documentDictionary];
-
-  // Documents are ordered by key, so we can use a prefix scan to narrow down the documents
-  // we need to match the query against.
-  FSTDocumentKey *prefix = [FSTDocumentKey keyWithPath:[query.path pathByAppendingSegment:@""]];
-  NSEnumerator<FSTDocumentKey *> *enumerator = [self.docs keyEnumeratorFrom:prefix];
-  for (FSTDocumentKey *key in enumerator) {
-    if (![query.path isPrefixOfPath:key.path]) {
-      break;
-    }
-    FSTMaybeDocument *maybeDoc = self.docs[key];
-    if (![maybeDoc isKindOfClass:[FSTDocument class]]) {
-      continue;
-    }
-    FSTDocument *doc = (FSTDocument *)maybeDoc;
-    if ([query matchesDocument:doc]) {
-      result = [result dictionaryBySettingObject:doc forKey:doc.key];
-    }
-  }
-
-  return result;
-}
-
-@end
-
-NS_ASSUME_NONNULL_END