Add nullability annotations

5 files changed, 15 insertions, 9 deletions

diff --git a/src/objc/smtp/MCOSMTPLoginOperation.h b/src/objc/smtp/MCOSMTPLoginOperation.h
index e7ffc641..39715cc7 100644
--- a/src/objc/smtp/MCOSMTPLoginOperation.h
+++ b/src/objc/smtp/MCOSMTPLoginOperation.h
@@ -13,6 +13,7 @@
 #import <MailCore/MCOSMTPOperation.h>
 
 /** This is an asynchronous operation that will perform a noop operation through SMTP. */
+NS_ASSUME_NONNULL_BEGIN
 @interface MCOSMTPLoginOperation : MCOSMTPOperation
 
 /*
@@ -25,8 +26,9 @@
  - On failure, `error` will be set with `MCOErrorDomain` as domain and an
  error code available in MCOConstants.h,
  */
-- (void) start:(void (^)(NSError * error))completionBlock;
+- (void) start:(void (^)(NSError * __nullable error))completionBlock;
 
 @end
+NS_ASSUME_NONNULL_END
 
 #endif
diff --git a/src/objc/smtp/MCOSMTPNoopOperation.h b/src/objc/smtp/MCOSMTPNoopOperation.h
index 0b22e5d9..e67698b7 100644
--- a/src/objc/smtp/MCOSMTPNoopOperation.h
+++ b/src/objc/smtp/MCOSMTPNoopOperation.h
@@ -25,7 +25,7 @@
  - On failure, `error` will be set with `MCOErrorDomain` as domain and an
  error code available in MCOConstants.h,
  */
-- (void) start:(void (^)(NSError * error))completionBlock;
+- (void) start:(void (^)(NSError * __nullable error))completionBlock;
 
 @end
 
diff --git a/src/objc/smtp/MCOSMTPOperation.h b/src/objc/smtp/MCOSMTPOperation.h
index 7b92148f..111f386b 100644
--- a/src/objc/smtp/MCOSMTPOperation.h
+++ b/src/objc/smtp/MCOSMTPOperation.h
@@ -14,6 +14,7 @@
 
 /** This is an asynchronous SMTP operation, used for sending messages. */
 
+NS_ASSUME_NONNULL_BEGIN
 @interface MCOSMTPOperation : MCOOperation
 
 /** 
@@ -26,8 +27,9 @@
  - On failure, `error` will be set with `MCOErrorDomain` as domain and an 
    error code available in MCOConstants.h,
 */
-- (void) start:(void (^)(NSError * error))completionBlock;
+- (void) start:(void (^)(NSError * __nullable error))completionBlock;
 
 @end
+NS_ASSUME_NONNULL_END
 
 #endif
diff --git a/src/objc/smtp/MCOSMTPSendOperation.h b/src/objc/smtp/MCOSMTPSendOperation.h
index 82b238c2..9474c0ef 100644
--- a/src/objc/smtp/MCOSMTPSendOperation.h
+++ b/src/objc/smtp/MCOSMTPSendOperation.h
@@ -16,6 +16,7 @@
 
 typedef void (^MCOSMTPOperationProgressBlock)(unsigned int current, unsigned int maximum);
 
+NS_ASSUME_NONNULL_BEGIN
 @interface MCOSMTPSendOperation : MCOSMTPOperation
 
 /** This block will be called as the message is sent */
@@ -31,8 +32,9 @@ typedef void (^MCOSMTPOperationProgressBlock)(unsigned int current, unsigned int
  - On failure, `error` will be set with `MCOErrorDomain` as domain and an 
    error code available in MCOConstants.h,
 */
-- (void) start:(void (^)(NSError * error))completionBlock;
+- (void) start:(void (^)(NSError * __nullable error))completionBlock;
 
 @end
+NS_ASSUME_NONNULL_END
 
 #endif
diff --git a/src/objc/smtp/MCOSMTPSession.h b/src/objc/smtp/MCOSMTPSession.h
index 64389c14..31055335 100644
--- a/src/objc/smtp/MCOSMTPSession.h
+++ b/src/objc/smtp/MCOSMTPSession.h
@@ -116,7 +116,7 @@
  Returns an operation that will perform a login.
  
  MCOSMTPOperation * op = [session loginOperation];
- [op start:^(NSError * error) {
+ [op start:^(NSError * __nullable error) {
  ...
  }];
  */
@@ -130,7 +130,7 @@
  Generate RFC 822 data using MCOMessageBuilder
 
      MCOSMTPOperation * op = [session sendOperationWithData:rfc822Data];
-     [op start:^(NSError * error) {
+     [op start:^(NSError * __nullable error) {
           ...
      }];
 */
@@ -146,7 +146,7 @@
  MCOSMTPOperation * op = [session sendOperationWithData:rfc822Data
                                                   from:[MCOAddress addressWithMailbox:@"hoa@etpan.org"]
                                             recipients:[NSArray arrayWithObject:[MCOAddress addressWithMailbox:@"laura@etpan.org"]]];
- [op start:^(NSError * error) {
+ [op start:^(NSError * __nullable error) {
  ...
  }];
  */
@@ -158,7 +158,7 @@
  Returns an operation that will check whether the SMTP account is valid.
 
      MCOSMTPOperation * op = [session checkAccountOperationWithFrom:[MCOAddress addressWithMailbox:@"hoa@etpan.org"]];
-     [op start:^(NSError * error) {
+     [op start:^(NSError * __nullable error) {
           ...
      }];
 */
@@ -168,7 +168,7 @@
  Returns an operation that will perform a No-Op.
  
  MCOSMTPOperation * op = [session noopOperation];
- [op start:^(NSError * error) {
+ [op start:^(NSError * __nullable error) {
  ...
  }];
  */