Replace `DocumentListenOptions` with a simple boolean. (#1099)

* Replace `DocumentListenOptions` with a simple boolean.

Instead of calling

  `addSnapshotListener(options: DocumentListenOptions.includeMetadataChanges(true))`

call

  `addSnapshotListener(includeMetadataChanges:true)`

* Style

1 files changed, 15 insertions, 51 deletions

diff --git a/Firestore/Source/API/FIRDocumentReference.mm b/Firestore/Source/API/FIRDocumentReference.mm
index 9fb4541..d3a9295 100644
--- a/Firestore/Source/API/FIRDocumentReference.mm
+++ b/Firestore/Source/API/FIRDocumentReference.mm
@@ -52,40 +52,6 @@ using firebase::firestore::model::ResourcePath;
 
 NS_ASSUME_NONNULL_BEGIN
 
-#pragma mark - FIRDocumentListenOptions
-
-@interface FIRDocumentListenOptions ()
-
-- (instancetype)initWithIncludeMetadataChanges:(BOOL)includeMetadataChanges
-    NS_DESIGNATED_INITIALIZER;
-
-@property(nonatomic, assign, readonly) BOOL includeMetadataChanges;
-
-@end
-
-@implementation FIRDocumentListenOptions
-
-+ (instancetype)options {
-  return [[FIRDocumentListenOptions alloc] init];
-}
-
-- (instancetype)initWithIncludeMetadataChanges:(BOOL)includeMetadataChanges {
-  if (self = [super init]) {
-    _includeMetadataChanges = includeMetadataChanges;
-  }
-  return self;
-}
-
-- (instancetype)init {
-  return [self initWithIncludeMetadataChanges:NO];
-}
-
-- (instancetype)includeMetadataChanges:(BOOL)includeMetadataChanges {
-  return [[FIRDocumentListenOptions alloc] initWithIncludeMetadataChanges:includeMetadataChanges];
-}
-
-@end
-
 #pragma mark - FIRDocumentReference
 
 @interface FIRDocumentReference ()
@@ -198,10 +164,9 @@ NS_ASSUME_NONNULL_BEGIN
 
 - (void)getDocumentWithCompletion:(void (^)(FIRDocumentSnapshot *_Nullable document,
                                             NSError *_Nullable error))completion {
-  FSTListenOptions *listenOptions =
-      [[FSTListenOptions alloc] initWithIncludeQueryMetadataChanges:YES
-                                     includeDocumentMetadataChanges:YES
-                                              waitForSyncWhenOnline:YES];
+  FSTListenOptions *options = [[FSTListenOptions alloc] initWithIncludeQueryMetadataChanges:YES
+                                                             includeDocumentMetadataChanges:YES
+                                                                      waitForSyncWhenOnline:YES];
 
   dispatch_semaphore_t registered = dispatch_semaphore_create(0);
   __block id<FIRListenerRegistration> listenerRegistration;
@@ -238,20 +203,20 @@ NS_ASSUME_NONNULL_BEGIN
     }
   };
 
-  listenerRegistration =
-      [self addSnapshotListenerInternalWithOptions:listenOptions listener:listener];
+  listenerRegistration = [self addSnapshotListenerInternalWithOptions:options listener:listener];
   dispatch_semaphore_signal(registered);
 }
 
 - (id<FIRListenerRegistration>)addSnapshotListener:(FIRDocumentSnapshotBlock)listener {
-  return [self addSnapshotListenerWithOptions:nil listener:listener];
+  return [self addSnapshotListenerWithIncludeMetadataChanges:NO listener:listener];
 }
 
-- (id<FIRListenerRegistration>)addSnapshotListenerWithOptions:
-                                   (nullable FIRDocumentListenOptions *)options
-                                                     listener:(FIRDocumentSnapshotBlock)listener {
-  return [self addSnapshotListenerInternalWithOptions:[self internalOptions:options]
-                                             listener:listener];
+- (id<FIRListenerRegistration>)
+addSnapshotListenerWithIncludeMetadataChanges:(BOOL)includeMetadataChanges
+                                     listener:(FIRDocumentSnapshotBlock)listener {
+  FSTListenOptions *options =
+      [self internalOptionsForIncludeMetadataChanges:includeMetadataChanges];
+  return [self addSnapshotListenerInternalWithOptions:options listener:listener];
 }
 
 - (id<FIRListenerRegistration>)
@@ -291,11 +256,10 @@ addSnapshotListenerInternalWithOptions:(FSTListenOptions *)internalOptions
 }
 
 /** Converts the public API options object to the internal options object. */
-- (FSTListenOptions *)internalOptions:(nullable FIRDocumentListenOptions *)options {
-  return
-      [[FSTListenOptions alloc] initWithIncludeQueryMetadataChanges:options.includeMetadataChanges
-                                     includeDocumentMetadataChanges:options.includeMetadataChanges
-                                              waitForSyncWhenOnline:NO];
+- (FSTListenOptions *)internalOptionsForIncludeMetadataChanges:(BOOL)includeMetadataChanges {
+  return [[FSTListenOptions alloc] initWithIncludeQueryMetadataChanges:includeMetadataChanges
+                                        includeDocumentMetadataChanges:includeMetadataChanges
+                                                 waitForSyncWhenOnline:NO];
 }
 
 @end