Open Radar

 
Summary:
Xcode provides a way to move lines of codes around a source file with Editor > Structure > Move Line Up ⌥⌘[ and Move Line Down ⌥⌘]. In Xcode 9, moving an Objective-C method across another method corrupts the source code. For example, attempting to move -testMethodA below  -testMethodB in the following code:

- (NSString *)testMethodA
{
	return [self uppercaseString];
}

- (NSString *)testMethodB
{
	return [self lowercaseString];
}

results in:

- (NSString *)testMethodB
{- (NSString *)testMethodA
	{
		return [self uppercaseString];
	}}
	return [self lowercaseString];
}
- (NSString *)testMethodA
{
	return [self uppercaseString];
}

Steps to Reproduce:
1. Open the included source code (or use an existing Objective-C .m source code)
2. Attempt to move an entire method below another method using Editor > Structure > Move Line Down ⌥⌘]

Expected Results:
1. The method should move below without corrupting the source code

Observed Results:
1. The method moves below the method while corrupting the source code

Version:
Version 9.0 beta (9M136h)
macOS 10.12.4 (16E195)

Notes:


Configuration