instance method named "class"

class.m

Class cls1 = [NSObject class];
NSLog(@"%@", NSStringFromClass(cls1));
// NSObject

NSObject *object = [[NSObject alloc] init];
Class cls2 = object.class;
NSLog(@"%@", NSStringFromClass(cls2));
// NSObject

class.swift

let cls1: AnyClass = NSObject.self
NSLog("%@", NSStringFromClass(cls1))
// NSObject

let object: NSObject = NSObject()
let cls2: AnyClass = object.dynamicType
NSLog("%@", NSStringFromClass(cls2))
// NSObject