Immutable user class in Objective-C and Swift

User.h

#import <Foundation/Foundation.h>

@interface User : NSObject

@property (nonatomic, copy, readonly) NSString *name;

- (instancetype)initWithName:(NSString *)name;

@end

User.m

#import "User.h"

@interface User ()

@property (nonatomic, copy, readwrite) NSString *name;

@end

@implementation User

- (instancetype)initWithName:(NSString *)name
{
    self = [super init];
    
    if (self) {
        self.name = name;
    }
    
    return self;
}

@end

User.swift

import Cocoa

class User: NSObject {
    let name: String
    
    init(name: String) {
        self.name = name
    }
}