New nullable annotation

ObjectiveGit/GTBlame.h

@@ -24,7 +24,7 @@ NS_ASSUME_NONNULL_BEGIN
 /// blame - A git_blame to wrap. May not be NULL.
 ///
 /// Returns a blame, or nil if initialization failed.
-- (nullable instancetype)initWithGitBlame:(git_blame *)blame NS_DESIGNATED_INITIALIZER;
+- (instancetype _Nullable)initWithGitBlame:(git_blame *)blame NS_DESIGNATED_INITIALIZER;
 
 /// Get all the hunks in the blame. A convenience wrapper around `enumerateHunksUsingBlock:`
 @property (nonatomic, strong, readonly) NSArray<GTBlameHunk *> *hunks;
@@ -37,7 +37,7 @@ NS_ASSUME_NONNULL_BEGIN
 /// index - The index to retrieve the hunk from.
 ///
 /// Returns a `GTBlameHunk` or nil if an error occurred.
-- (nullable GTBlameHunk *)hunkAtIndex:(NSUInteger)index;
+- (GTBlameHunk * _Nullable)hunkAtIndex:(NSUInteger)index;
 
 /// Enumerate the hunks in the blame.
 ///
@@ -52,7 +52,7 @@ NS_ASSUME_NONNULL_BEGIN
 /// lineNumber - The (1 based) line number to find a hunk for.
 ///
 /// Returns a `GTBlameHunk` or nil if an error occurred.
-- (nullable GTBlameHunk *)hunkAtLineNumber:(NSUInteger)lineNumber;
+- (GTBlameHunk * _Nullable)hunkAtLineNumber:(NSUInteger)lineNumber;
 
 /// The underlying `git_blame` object.
 - (git_blame *)git_blame __attribute__((objc_returns_inner_pointer));

ObjectiveGit/GTBlameHunk.h

@@ -24,17 +24,17 @@ NS_ASSUME_NONNULL_BEGIN
 /// hunk - A git_blame_hunk to wrap. May not be NULL.
 ///
 /// Returns a blame hunk, or nil if initialization failed.
-- (nullable instancetype)initWithGitBlameHunk:(git_blame_hunk)hunk NS_DESIGNATED_INITIALIZER;
+- (instancetype _Nullable)initWithGitBlameHunk:(git_blame_hunk)hunk NS_DESIGNATED_INITIALIZER;
 
 /// A NSRange where `location` is the (1 based) starting line number,
 /// and `length` is the number of lines in the hunk.
 @property (nonatomic, readonly) NSRange lines;
 
 /// The OID of the commit where this hunk was last changed.
-@property (nonatomic, readonly, copy, nullable) GTOID *finalCommitOID;
+@property (nonatomic, readonly, copy) GTOID * _Nullable finalCommitOID;
 
 /// The signature of the commit where this hunk was last changed.
-@property (nonatomic, readonly, nullable) GTSignature *finalSignature;
+@property (nonatomic, readonly) GTSignature * _Nullable finalSignature;
 
 /// The path of the file in the original commit.
 @property (nonatomic, readonly, copy) NSString *originalPath;

ObjectiveGit/GTBlob.h

@@ -43,7 +43,7 @@ NS_ASSUME_NONNULL_BEGIN
 /// error      - Will be set if an error occurs. This may be nil.
 ///
 /// Return a newly created blob object, or nil if an error occurs.
-+ (nullable instancetype)blobWithString:(NSString *)string inRepository:(GTRepository *)repository error:(NSError **)error;
++ (instancetype _Nullable)blobWithString:(NSString *)string inRepository:(GTRepository *)repository error:(NSError **)error;
 
 /// Creates a new blob from the given data.
 ///
@@ -54,7 +54,7 @@ NS_ASSUME_NONNULL_BEGIN
 /// error      - Will be set if an error occurs. This may be nil.
 ///
 /// Return a newly created blob object, or nil if an error occurs.
-+ (nullable instancetype)blobWithData:(NSData *)data inRepository:(GTRepository *)repository error:(NSError **)error;
++ (instancetype _Nullable)blobWithData:(NSData *)data inRepository:(GTRepository *)repository error:(NSError **)error;
 
 /// Creates a new blob given an NSURL to a file.
 ///
@@ -65,7 +65,7 @@ NS_ASSUME_NONNULL_BEGIN
 /// error      - Will be set if an error occurs. This may be nil.
 ///
 /// Return a newly created blob object, or nil if an error occurs.
-+ (nullable instancetype)blobWithFile:(NSURL *)file inRepository:(GTRepository *)repository error:(NSError **)error;
++ (instancetype _Nullable)blobWithFile:(NSURL *)file inRepository:(GTRepository *)repository error:(NSError **)error;
 
 /// Creates a new blob from the given string.
 ///
@@ -76,7 +76,7 @@ NS_ASSUME_NONNULL_BEGIN
 /// error      - Will be set if an error occurs. This may be nil.
 ///
 /// Return a newly created blob object, or nil if an error occurs.
-- (nullable instancetype)initWithString:(NSString *)string inRepository:(GTRepository *)repository error:(NSError **)error;
+- (instancetype _Nullable)initWithString:(NSString *)string inRepository:(GTRepository *)repository error:(NSError **)error;
 
 /// Creates a new blob from the passed data.
 ///
@@ -87,7 +87,7 @@ NS_ASSUME_NONNULL_BEGIN
 /// error      - Will be set if an error occurs. This may be nil.
 ///
 /// Returns a newly created blob object, or nil if an error occurs.
-- (nullable instancetype)initWithData:(NSData *)data inRepository:(GTRepository *)repository error:(NSError **)error;
+- (instancetype _Nullable)initWithData:(NSData *)data inRepository:(GTRepository *)repository error:(NSError **)error;
 
 /// Creates a new blob from the specified file.
 ///
@@ -98,22 +98,22 @@ NS_ASSUME_NONNULL_BEGIN
 /// error      - Will be set if an error occurs. This may be nil.
 ///
 /// Returns a newly created blob object, or nil if an error occurs.
-- (nullable instancetype)initWithFile:(NSURL *)file inRepository:(GTRepository *)repository error:(NSError **)error;
+- (instancetype _Nullable)initWithFile:(NSURL *)file inRepository:(GTRepository *)repository error:(NSError **)error;
 
 /// The underlying `git_object` as a `git_blob` object.
 - (git_blob *)git_blob __attribute__((objc_returns_inner_pointer));
 
 - (git_off_t)size;
 - (NSString *)content;
-- (nullable NSData *)data;
+- (NSData * _Nullable)data;
 
 /// Attempts to apply the filter list for `path` to the blob.
 ///
 /// path  - The path to use filters from. Must not be nil.
 /// error - If not NULL, set to any error that occurs.
 ///
 /// Returns the filtered data, or nil if an error occurs.
-- (nullable NSData *)applyFiltersForPath:(NSString *)path error:(NSError **)error;
+- (NSData * _Nullable)applyFiltersForPath:(NSString *)path error:(NSError **)error;
 
 @end
 

ObjectiveGit/GTBranch.h

@@ -43,10 +43,10 @@ NS_ASSUME_NONNULL_BEGIN
 /// equal.
 @interface GTBranch : NSObject
 
-@property (nonatomic, readonly, nullable) NSString *name;
-@property (nonatomic, readonly, nullable) NSString *shortName;
-@property (nonatomic, copy, readonly, nullable) GTOID *OID;
-@property (nonatomic, readonly, nullable) NSString *remoteName;
+@property (nonatomic, readonly) NSString * _Nullable name;
+@property (nonatomic, readonly) NSString * _Nullable shortName;
+@property (nonatomic, copy, readonly) GTOID * _Nullable OID;
+@property (nonatomic, readonly) NSString * _Nullable remoteName;
 @property (nonatomic, readonly) GTBranchType branchType;
 @property (nonatomic, readonly, strong) GTRepository *repository;
 @property (nonatomic, readonly, strong) GTReference *reference;
@@ -62,22 +62,22 @@ NS_ASSUME_NONNULL_BEGIN
 /// repo - The repository containing the branch. Must not be nil.
 ///
 /// Returns the initialized receiver.
-- (nullable instancetype)initWithReference:(GTReference *)ref repository:(GTRepository *)repo NS_DESIGNATED_INITIALIZER;
+- (instancetype _Nullable)initWithReference:(GTReference *)ref repository:(GTRepository *)repo NS_DESIGNATED_INITIALIZER;
 
 /// Convenience class initializer.
 ///
 /// ref  - The branch reference to wrap. Must not be nil.
 /// repo - The repository containing the branch. Must not be nil.
 ///
 /// Returns an initialized instance.
-+ (nullable instancetype)branchWithReference:(GTReference *)ref repository:(GTRepository *)repo;
++ (instancetype _Nullable)branchWithReference:(GTReference *)ref repository:(GTRepository *)repo;
 
 /// Get the target commit for this branch
 ///
 /// error(out) - will be filled if an error occurs
 ///
 /// returns a GTCommit object or nil if an error occurred
-- (nullable GTCommit *)targetCommitWithError:(NSError **)error;
+- (GTCommit * _Nullable)targetCommitWithError:(NSError **)error;
 
 /// Count all commits in this branch
 ///
@@ -92,15 +92,15 @@ NS_ASSUME_NONNULL_BEGIN
 /// error       - If not NULL, set to any error that occurs.
 ///
 /// Returns a (possibly empty) array of GTCommits, or nil if an error occurs.
-- (nullable NSArray<GTCommit *> *)uniqueCommitsRelativeToBranch:(GTBranch *)otherBranch error:(NSError **)error;
+- (NSArray<GTCommit *> * _Nullable)uniqueCommitsRelativeToBranch:(GTBranch *)otherBranch error:(NSError **)error;
 
 /// Deletes the local branch and nils out the reference.
 - (BOOL)deleteWithError:(NSError **)error;
 
 /// If the receiver is a local branch, looks up and returns its tracking branch.
 /// If the receiver is a remote branch, returns self. If no tracking branch was
 /// found, returns nil and sets `success` to YES.
-- (nullable GTBranch *)trackingBranchWithError:(NSError **)error success:(nullable BOOL *)success;
+- (GTBranch * _Nullable)trackingBranchWithError:(NSError **)error success:(BOOL * _Nullable)success;
 
 /// Update the tracking branch.
 ///
@@ -109,7 +109,7 @@ NS_ASSUME_NONNULL_BEGIN
 /// error          - The error if one occurred.
 ///
 /// Returns whether it was successful.
-- (BOOL)updateTrackingBranch:(nullable GTBranch *)trackingBranch error:(NSError **)error;
+- (BOOL)updateTrackingBranch:(GTBranch * _Nullable)trackingBranch error:(NSError **)error;
 
 /// Reloads the branch's reference and creates a new branch based off that newly
 /// loaded reference.
@@ -119,7 +119,7 @@ NS_ASSUME_NONNULL_BEGIN
 /// error - The error if one occurred.
 ///
 /// Returns the reloaded branch, or nil if an error occurred.
-- (nullable GTBranch *)reloadedBranchWithError:(NSError **)error;
+- (GTBranch * _Nullable)reloadedBranchWithError:(NSError **)error;
 
 /// Calculate the ahead/behind count from this branch to the given branch.
 ///

ObjectiveGit/GTBranch.m

@@ -65,7 +65,7 @@ + (NSString *)remoteNamePrefix {
 	return @"refs/remotes/";
 }
 
-+ (nullable instancetype)branchWithReference:(GTReference *)ref repository:(GTRepository *)repo {
++ (instancetype)branchWithReference:(GTReference *)ref repository:(GTRepository *)repo {
 	return [[self alloc] initWithReference:ref repository:repo];
 }
 
@@ -74,7 +74,7 @@ - (instancetype)init {
 	return nil;
 }
 
-- (nullable instancetype)initWithReference:(GTReference *)ref repository:(GTRepository *)repo {
+- (instancetype)initWithReference:(GTReference *)ref repository:(GTRepository *)repo {
 	NSParameterAssert(ref != nil);
 	NSParameterAssert(repo != nil);
 

ObjectiveGit/GTCheckoutOptions.h

@@ -64,7 +64,7 @@ typedef NS_OPTIONS(NSInteger, GTCheckoutNotifyFlags) {
 /// @param notifyBlock   A block that will be called for each event, @see `notifyFlags`.
 ///
 /// @return A newly-initialized GTCheckoutOptions object.
-+ (instancetype)checkoutOptionsWithStrategy:(GTCheckoutStrategyType)strategy notifyFlags:(GTCheckoutNotifyFlags)notifyFlags progressBlock:(nullable void (^)(NSString *path, NSUInteger completedSteps, NSUInteger totalSteps))progressBlock notifyBlock:(nullable int (^)(GTCheckoutNotifyFlags why, NSString *path, GTDiffFile *baseline, GTDiffFile *target, GTDiffFile *workdir))notifyBlock;
++ (instancetype)checkoutOptionsWithStrategy:(GTCheckoutStrategyType)strategy notifyFlags:(GTCheckoutNotifyFlags)notifyFlags progressBlock:(void (^ _Nullable)(NSString *path, NSUInteger completedSteps, NSUInteger totalSteps))progressBlock notifyBlock:(int (^ _Nullable)(GTCheckoutNotifyFlags why, NSString *path, GTDiffFile *baseline, GTDiffFile *target, GTDiffFile *workdir))notifyBlock;
 
 /// Create a checkout options object.
 /// @see +checkoutOptionsWithStrategy:notifyFlags:progressBlock:notifyBlock:

ObjectiveGit/GTCheckoutOptions.m

@@ -16,7 +16,7 @@
 typedef void (^GTCheckoutProgressBlock)(NSString *path, NSUInteger completedSteps, NSUInteger totalSteps);
 
 // The type of block set in notifyBlock for notification reporting
-typedef int  (^GTCheckoutNotifyBlock)(GTCheckoutNotifyFlags why, NSString *path, GTDiffFile * __nullable baseline, GTDiffFile * __nullable target, GTDiffFile * __nullable workdir);
+typedef int  (^GTCheckoutNotifyBlock)(GTCheckoutNotifyFlags why, NSString *path, GTDiffFile * _Nullable baseline, GTDiffFile * _Nullable target, GTDiffFile * _Nullable workdir);
 
 
 @interface GTCheckoutOptions () {
@@ -26,7 +26,7 @@ @interface GTCheckoutOptions () {
 
 @implementation GTCheckoutOptions
 
-+ (instancetype)checkoutOptionsWithStrategy:(GTCheckoutStrategyType)strategy notifyFlags:(GTCheckoutNotifyFlags)notifyFlags progressBlock:(nullable GTCheckoutProgressBlock)progressBlock notifyBlock:(nullable  GTCheckoutNotifyBlock)notifyBlock {
++ (instancetype)checkoutOptionsWithStrategy:(GTCheckoutStrategyType)strategy notifyFlags:(GTCheckoutNotifyFlags)notifyFlags progressBlock:(GTCheckoutProgressBlock _Nullable)progressBlock notifyBlock:( GTCheckoutNotifyBlock _Nullable)notifyBlock {
 	GTCheckoutOptions *options = [self checkoutOptionsWithStrategy:strategy];
 	options.notifyFlags = notifyFlags;
 	options.notifyBlock = notifyBlock;

ObjectiveGit/GTCommit.h

@@ -39,15 +39,15 @@ NS_ASSUME_NONNULL_BEGIN
 
 @interface GTCommit : GTObject {}
 
-@property (nonatomic, readonly, strong, nullable) GTSignature *author;
-@property (nonatomic, readonly, strong, nullable) GTSignature *committer;
+@property (nonatomic, readonly, strong) GTSignature * _Nullable author;
+@property (nonatomic, readonly, strong) GTSignature * _Nullable committer;
 @property (nonatomic, readonly, copy) NSArray<GTCommit *> *parents;
-@property (nonatomic, readonly, nullable) NSString *message;
+@property (nonatomic, readonly) NSString * _Nullable message;
 @property (nonatomic, readonly) NSString *messageDetails;
 @property (nonatomic, readonly) NSString *messageSummary;
 @property (nonatomic, readonly) NSDate *commitDate;
 @property (nonatomic, readonly) NSTimeZone *commitTimeZone;
-@property (nonatomic, readonly, nullable) GTTree *tree;
+@property (nonatomic, readonly) GTTree * _Nullable tree;
 
 /// Is this a merge commit?
 @property (nonatomic, readonly, assign, getter = isMerge) BOOL merge;
@@ -64,7 +64,7 @@ NS_ASSUME_NONNULL_BEGIN
 ///
 /// Returns an index which represents the result of the merge, or nil if an error
 /// occurred.
-- (nullable GTIndex *)merge:(GTCommit *)otherCommit error:(NSError **)error;
+- (GTIndex * _Nullable)merge:(GTCommit *)otherCommit error:(NSError **)error;
 
 @end
 

ObjectiveGit/GTConfiguration+Private.h

@@ -18,6 +18,6 @@
 /// repository - The repository in which the config resides. May be nil.
 ///
 /// Returns the initialized object.
-- (nullable instancetype)initWithGitConfig:(nonnull git_config *)config repository:(nullable GTRepository *)repository NS_DESIGNATED_INITIALIZER;
+- (instancetype _Nullable)initWithGitConfig:(git_config * _Nonnull)config repository:(GTRepository * _Nullable)repository NS_DESIGNATED_INITIALIZER;
 
 @end

ObjectiveGit/GTConfiguration.h

@@ -17,24 +17,24 @@ NS_ASSUME_NONNULL_BEGIN
 
 @interface GTConfiguration : NSObject
 
-@property (nonatomic, readonly, strong, nullable) GTRepository *repository;
+@property (nonatomic, readonly, strong) GTRepository * _Nullable repository;
 @property (nonatomic, readonly, copy) NSArray<NSString *> *configurationKeys;
 
 /// The GTRemotes in the config. If the configuration isn't associated with any
 /// repository, this will always be nil.
-@property (nonatomic, readonly, copy, nullable) NSArray<GTRemote *> *remotes;
+@property (nonatomic, readonly, copy) NSArray<GTRemote *> * _Nullable remotes;
 
 - (instancetype)init NS_UNAVAILABLE;
 
 /// Creates and returns a configuration which includes the global, XDG, and
 /// system configurations.
-+ (nullable instancetype)defaultConfiguration;
++ (instancetype _Nullable)defaultConfiguration;
 
 /// The underlying `git_config` object.
 - (git_config *)git_config __attribute__((objc_returns_inner_pointer));
 
 - (void)setString:(NSString *)s forKey:(NSString *)key;
-- (nullable NSString *)stringForKey:(NSString *)key;
+- (NSString * _Nullable)stringForKey:(NSString *)key;
 
 - (void)setBool:(BOOL)b forKey:(NSString *)key;
 - (BOOL)boolForKey:(NSString *)key;

ObjectiveGit/GTCredential.h

@@ -46,7 +46,7 @@ NS_ASSUME_NONNULL_BEGIN
 /// type     - the credential types allowed by the operation.
 /// URL      - the URL the operation is authenticating against.
 /// userName - the user name provided by the operation. Can be nil, and might be ignored.
-- (GTCredential * _Nullable)credentialForType:(GTCredentialType)type URL:(nullable NSString *)URL userName:(nullable NSString *)userName;
+- (GTCredential * _Nullable)credentialForType:(GTCredentialType)type URL:(NSString * _Nullable)URL userName:(NSString * _Nullable)userName;
 @end
 
 /// The GTCredential class is used to provide authentication data.
@@ -60,7 +60,7 @@ NS_ASSUME_NONNULL_BEGIN
 /// error    - If not NULL, set to any errors that occur.
 ///
 /// Return a new GTCredential instance, or nil if an error occurred
-+ (nullable instancetype)credentialWithUserName:(NSString *)userName password:(NSString *)password error:(NSError **)error;
++ (instancetype _Nullable)credentialWithUserName:(NSString *)userName password:(NSString *)password error:(NSError **)error;
 
 /// Create a credential object from a SSH keyfile
 ///
@@ -72,7 +72,7 @@ NS_ASSUME_NONNULL_BEGIN
 /// error         - If not NULL, set to any errors that occur.
 ///
 /// Return a new GTCredential instance, or nil if an error occurred
-+ (nullable instancetype)credentialWithUserName:(NSString *)userName publicKeyURL:(nullable NSURL *)publicKeyURL privateKeyURL:(NSURL *)privateKeyURL passphrase:(nullable NSString *)passphrase error:(NSError **)error;
++ (instancetype _Nullable)credentialWithUserName:(NSString *)userName publicKeyURL:(NSURL * _Nullable)publicKeyURL privateKeyURL:(NSURL *)privateKeyURL passphrase:(NSString * _Nullable)passphrase error:(NSError **)error;
 
 /// Create a credential object from a SSH keyfile data string
 ///
@@ -84,7 +84,7 @@ NS_ASSUME_NONNULL_BEGIN
 /// error            - If not NULL, set to any errors that occur.
 ///
 /// Return a new GTCredential instance, or nil if an error occurred
-+ (nullable instancetype)credentialWithUserName:(NSString *)userName publicKeyString:(nullable NSString *)publicKeyString privateKeyString:(NSString *)privateKeyString passphrase:(nullable NSString *)passphrase error:(NSError **)error;
++ (instancetype _Nullable)credentialWithUserName:(NSString *)userName publicKeyString:(NSString * _Nullable)publicKeyString privateKeyString:(NSString *)privateKeyString passphrase:(NSString * _Nullable)passphrase error:(NSError **)error;
 
 /// The underlying `git_cred` object.
 - (git_cred *)git_cred __attribute__((objc_returns_inner_pointer));

ObjectiveGit/GTDiff+Private.h

@@ -14,6 +14,6 @@
 /// provides a pointer to that structure to the given `block`.
 ///
 /// Returns the result of invoking `block`.
-+ (int)handleParsedOptionsDictionary:(nullable NSDictionary *)dictionary usingBlock:(nonnull int (^)(git_diff_options * __null_unspecified optionsStruct))block;
++ (int)handleParsedOptionsDictionary:(NSDictionary * _Nullable)dictionary usingBlock:(int (^ _Nonnull)(git_diff_options * _Null_unspecified optionsStruct))block;
 
 @end