Fix for #334

ChangeLog

@@ -2,6 +2,9 @@
 
 	* Source/NSFileManager.m: Fix issue #292
 	* Tests/base/NSFileManager/general.m: test for enumerator at URL
+	* Source/NSNotificationCenter.m: fix indentation/style errors
+	* Headers/GNUstepBase/GSBlocks.h: Add new macros for calling blocks
+	which return a value.
 
 2023-11-14 Richard Frith-Macdonald <[email protected]> Riccardo Mottola <[email protected]>
 

Headers/GNUstepBase/GSBlocks.h

@@ -107,8 +107,11 @@ typedef retTy(^name)()
 
 #endif /* __has_feature(blocks) */
 
-#define CALL_BLOCK(block, args...) ((NULL != block) ? CALL_NON_NULL_BLOCK(block, args) : nil)
-#define CALL_BLOCK_NO_ARGS(block) ((NULL != block) ? CALL_NON_NULL_BLOCK_NO_ARGS(block) : nil)
+#define CALL_BLOCK(block, args...) ({if (NULL != block) CALL_NON_NULL_BLOCK(block, args);})
+#define CALL_BLOCK_RET(block, rettype, args...) ((NULL != block) ? (rettype)CALL_NON_NULL_BLOCK(block, args) : (rettype)0)
+
+#define CALL_BLOCK_NO_ARGS(block) ({if (NULL != block) CALL_NON_NULL_BLOCK_NO_ARGS(block);})
+#define CALL_BLOCK_RET_NO_ARGS(block, rettype) ((NULL != block) ? (rettype)CALL_NON_NULL_BLOCK_NO_ARGS(block) : (rettype)0)
 
 #if __has_include(<objc/blocks_runtime.h>)
 #  include <objc/blocks_runtime.h>

Source/NSNotificationCenter.m

@@ -543,8 +543,8 @@ static void listFree(Observation *list)
 
 @interface GSNotificationBlockOperation : NSOperation
 {
-	NSNotification *_notification;
-	GSNotificationBlock _block;
+  NSNotification	*_notification;
+  GSNotificationBlock	_block;
 }
 
 - (id) initWithNotification: (NSNotification *)notif 
@@ -557,34 +557,32 @@ @implementation GSNotificationBlockOperation
 - (id) initWithNotification: (NSNotification *)notif 
                       block: (GSNotificationBlock)block
 {
-	self = [super init];
-	if (self == nil)
-		return nil;
-
-	ASSIGN(_notification, notif);
-	_block = Block_copy(block);
-	return self;
-
+  if ((self = [super init]) != nil)
+    {
+      ASSIGN(_notification, notif);
+      _block = Block_copy(block);
+    }
+  return self;
 }
 
 - (void) dealloc
 {
-	DESTROY(_notification);
-	Block_release(_block);
-	[super dealloc];
+  DESTROY(_notification);
+  Block_release(_block);
+  DEALLOC
 }
 
 - (void) main
 {
-	CALL_BLOCK(_block, _notification);
+  CALL_BLOCK(_block, _notification);
 }
 
 @end
 
 @interface GSNotificationObserver : NSObject
 {
-	NSOperationQueue *_queue;
-	GSNotificationBlock _block;
+  NSOperationQueue	*_queue;
+  GSNotificationBlock	_block;
 }
 
 @end
@@ -594,35 +592,34 @@ @implementation GSNotificationObserver
 - (id) initWithQueue: (NSOperationQueue *)queue 
                block: (GSNotificationBlock)block
 {
-	self = [super init];
-	if (self == nil)
-		return nil;
-
-	ASSIGN(_queue, queue);
-	_block = Block_copy(block);
-	return self;
+  if ((self = [super init]) != nil)
+    {
+      ASSIGN(_queue, queue);
+      _block = Block_copy(block);
+    }
+  return self;
 }
 
 - (void) dealloc
 {
-	DESTROY(_queue);
-	Block_release(_block);
-	[super dealloc];
+  DESTROY(_queue);
+  Block_release(_block);
+  DEALLOC
 }
 
 - (void) didReceiveNotification: (NSNotification *)notif
 {
-	if (_queue != nil)
-	{
-		GSNotificationBlockOperation *op = [[GSNotificationBlockOperation alloc] 
-			initWithNotification: notif block: _block];
+  if (_queue != nil)
+    {
+      GSNotificationBlockOperation *op = [[GSNotificationBlockOperation alloc] 
+	initWithNotification: notif block: _block];
 
-		[_queue addOperation: op];
-	}
-	else
-	{
-		CALL_BLOCK(_block, notif);
-	}
+      [_queue addOperation: op];
+    }
+  else
+    {
+      CALL_BLOCK(_block, notif);
+    }
 }
 
 @end