1 files changed, 10 insertions, 10 deletions
diff --git a/src/objc/nntp/MCONNTPSession.h b/src/objc/nntp/MCONNTPSession.h
index 083d973b..0637ec7e 100644
--- a/src/objc/nntp/MCONNTPSession.h
+++ b/src/objc/nntp/MCONNTPSession.h
@@ -100,7 +100,7 @@
  Returns an operation that will fetch the list of article numbers.
  
  MCONNTPFetchAllArticlesOperation * op = [session fetchAllArticlesOperation:@"comp.lang.c"];
- [op start:^(NSError * error, MCOIndexSet * articles) {
+ [op start:^(NSError * __nullable error, MCOIndexSet * articles) {
  }];
  */
 - (MCONNTPFetchAllArticlesOperation *) fetchAllArticlesOperation:(NSString *)group;
@@ -109,7 +109,7 @@
  Returns an operation that will fetch the header of the given message.
  
  MCONNTPFetchHeaderOperation * op = [session fetchHeaderOperationWithIndex:idx inGroup:@"comp.lang.c"];
- [op start:^(NSError * error, MCOMessageHeader * header) {
+ [op start:^(NSError * __nullable error, MCOMessageHeader * header) {
  // header is the parsed header of the message.
  }];
  */
@@ -119,7 +119,7 @@
  Returns an operation that will fetch an overview (headers) for a set of messages.
  
  MCONNTPFetchHeaderOperation * op = [session fetchOverviewOperationWithIndexes:indexes inGroup:@"comp.lang.c"];
- [op start:^(NSError * error, NSArray * headers) {
+ [op start:^(NSError * __nullable error, NSArray * headers) {
  // headers are the parsed headers of each part of the overview.
  }];
  */
@@ -129,7 +129,7 @@
  Returns an operation that will fetch the content of the given message.
  
  MCONNTPFetchArticleOperation * op = [session fetchArticleOperationWithIndex:idx inGroup:@"comp.lang.c"];
- [op start:^(NSError * error, NSData * messageData) {
+ [op start:^(NSError * __nullable error, NSData * messageData) {
  // messageData is the RFC 822 formatted message data.
  }];
  */
@@ -139,7 +139,7 @@
  Returns an operation that will fetch the content of a message with the given messageID.
  
  MCONNTPFetchArticleOperation * op = [session fetchArticleOperationWithMessageID:@"<MessageID123@mail.google.com>" inGroup:@"comp.lang.c"];
- [op start:^(NSError * error, NSData * messageData) {
+ [op start:^(NSError * __nullable error, NSData * messageData) {
  // messageData is the RFC 822 formatted message data.
  }];
  */
@@ -149,7 +149,7 @@
  Returns an operation that will fetch the server's date and time.
  
  MCONNTPFetchArticleOperation * op = [session fetchServerDateOperation];
- [op start:^(NSError * error, NSDate * serverDate) {
+ [op start:^(NSError * __nullable error, NSDate * serverDate) {
  }];
  */
 - (MCONNTPFetchServerTimeOperation *) fetchServerDateOperation;
@@ -158,7 +158,7 @@
  Returns an operation that will list all available newsgroups.
  
  MCONNTPListNewsgroupsOperation * op = [session listAllNewsgroupsOperation];
- [op start:^(NSError * error, NSArray * subscribedGroups) {
+ [op start:^(NSError * __nullable error, NSArray * subscribedGroups) {
  }];
  */
 - (MCONNTPListNewsgroupsOperation *) listAllNewsgroupsOperation;
@@ -167,7 +167,7 @@
  Returns an operation that will list server-suggested default newsgroups.
  
  MCONNTPListNewsgroupsOperation * op = [session listDefaultNewsgroupsOperation];
- [op start:^(NSError * error, NSArray * defaultGroups) {
+ [op start:^(NSError * __nullable error, NSArray * defaultGroups) {
  }];
  */
 - (MCONNTPListNewsgroupsOperation *) listDefaultNewsgroupsOperation;
@@ -176,7 +176,7 @@
  Returns an operation that will disconnect the session.
  
  MCONNTPOperation * op = [session disconnectOperation];
- [op start:^(NSError * error) {
+ [op start:^(NSError * __nullable error) {
  ...
  }];
  */
@@ -186,7 +186,7 @@
  Returns an operation that will check whether the NNTP account is valid.
  
  MCONNTPOperation * op = [session checkAccountOperation];
- [op start:^(NSError * error) {
+ [op start:^(NSError * __nullable error) {
  ...
  }];
  */