Objective-Clean is a VS Code extension to modernize old Objective-C code. We've all been there: you crack open a project written by someone who learned Objc 20 years ago and never got into the habit of using collection literals and subscripting syntax, and you wish you could flip a switch to convert that code to use modern Objective-C syntax!
Well, now you can!
Features
This extension comes with a single command, Convert File to Modern Objective-C Syntax, that will only do the following:
Convert NSNumber initializers to use NSNumber literals
Convert NS[Mutable]Dictionary|Array initializers to use collection literals
Convert NS[Mutable]Dictionary|Array accessors to use subscripting syntax
For most operations, this extension uses simple regex find and replace. As a result, there may be edge cases it cannot handle or won't handle correctly without a full-blown parser. Some contrived examples:
[[foo bar] objectForKey:key] may not be handled, in order for [object method:[dict objectForKey:key]] to work
[[foo bar:foo[1]] objectForKey:key] may result in [[foo bar:foo1]][key]
TODO
[ ] Implement stricter parsing for dictionary initializers
[ ] Implement a parser for collection accessors instead of using regex
[x] Split all functionality into individual commands
[x] Add a command to run a list of other commands of this extension
[x] Add setting to choose "default" commands to run in the above setting
Add new commands for the following:
[x] alloc-init calls to new
[x] Collection initWithCapacity: calls to new/alloc-init
[ ] Accesses of known class properties to dot syntax (i.e. UIColor.redColor, UIDevice.currentDevice)
[x] [[UIView alloc] initWithFrame:CGRectZero] to new/alloc-init
[x] CGRect(0, 0, 0, 0) to CGRectZero
[ ] Remove unnecessary casts in message sends, such as [(NSNumber *)foo boolValue]
[ ] Enforce proper method declaration format, i.e. -(void) foo: (id ) bar to - (void)foo:(id)bar
