brentsimmons

//: Playground - noun: a place where people can play

import Cocoa

var str = "Hello, playground"

@objc protocol Thing {
	
	func doThing(x: String) throws -> String
}

brentsimmons

//: Playground - noun: a place where people can play

import Cocoa

// Solution: if I use "class" instead of "AnyObject", then it’s a pure Swift solution:
// http://inessential.com/2015/07/23/swift_diary_3_arrays_protocols_and_p
// https://twitter.com/_mattrubin/status/624266521896992768
// Or… AnyObject may be marked @objc, but it is in fact a native Swift feature:
// https://twitter.com/jckarter/status/624270700614942721

brentsimmons

import Cocoa

protocol Thing {
	var x: String {get}
	init(s: String)
}

class Foo: Thing {

	let x: String

brentsimmons

// How do you do this in Swift?

- (Class)classToUse {
  return [Foo class]; // assume it's something else sometimes
}

- (id)generateThingForString:(NSString *)s {
  Class thingClass = [self classToUse];
  return [[thingClass alloc] initWithString:s];
}

brentsimmons

//
//  VSTagAuthoritySQL.m
//  Vesper
//
//  Created by Brent Simmons on 2/28/14.
//  Copyright (c) 2014 Q Branch LLC. All rights reserved.
//

#import <libkern/OSAtomic.h>
#import "VSTagAuthoritySQL.h"

brentsimmons

//
//  VSTagAuthoritySQL.h
//  Vesper
//
//  Created by Brent Simmons on 2/28/14.
//  Copyright (c) 2014 Q Branch LLC. All rights reserved.
//

brentsimmons

//
//  VSTagAuthority.m
//  Vesper
//
//  Created by Brent Simmons on 2/28/14.
//  Copyright (c) 2014 Q Branch LLC. All rights reserved.
//

#import "VSTagAuthority.h"
#import "VSTag.h"

brentsimmons

//
//  VSTagAuthority.h
//  Vesper
//
//  Created by Brent Simmons on 2/28/14.
//  Copyright (c) 2014 Q Branch LLC. All rights reserved.
//


/*