delebedev

#import "KWHCMatcher.h"
#import "KWMessageTracker.h"
#import "Kiwi.h"

@interface NSNotificationMatcher : NSObject <HCMatcher>
{
	NSDictionary *_userInfo;
}

+ (id)matcherWithUserInfo:(NSDictionary *)dictionary;

delebedev

Types

A type is a collection of possible values. An integer can have values 0, 1, 2, 3, etc.; a boolean can have values true and false. We can imagine any type we like: for example, a HighFive type that allows the values "hi" or 5, but nothing else. It's not a string and it's not an integer; it's its own, separate type.

Statically typed languages constrain variables' types: the programming language might know, for example, that x is an Integer. In that case, the programmer isn't allowed to say x = true; that would be an invalid program. The compiler will refuse to compile it, so we can't even run it.

delebedev

Adyen Test Card Numbers
These cards are only valid on our TEST system and they will never involve any actual transaction or transfer of funds. The TEST card numbers will not work on the Adyen LIVE Platform.

For all cards use the following expiration and CVV2/CVC2/or CID for Amex. 

For all cards:

Expiration Dates	CVV2 / CVC3	CID (American Express)
06/2016  OR  08/2018	737	7373

delebedev

struct MinimalDecoder : Decoder {
  var codingPath = [CodingKey?]()
  var userInfo = [CodingUserInfoKey : Any]()
  
  public func container<Key>(keyedBy type: Key.Type) throws -> KeyedDecodingContainer<Key> {
    return KeyedDecodingContainer(MinimalKeyedDecodingContainer<Key>(decoder: self))
  }
  
  public func unkeyedContainer() throws -> UnkeyedDecodingContainer {
    return DecodingContainer(decoder: self)

delebedev

libdispatch efficiency tips

I suspect most developers are using the libdispatch inefficiently due to the way it was presented to us at the time it was introduced and for many years after that, and due to the confusing documentation and API. I realized this after reading the 'concurrency' discussion on the swift-evolution mailing-list, in particular the messages from Pierre Habouzit (who is the libdispatch maintainer at Apple) are quite enlightening (and you can also find many tweets from him on the subject).

• https://lists.swift.org/pipermail/swift-evolution/Week-of-Mon-20170828/date.html
• https://lists.swift.org/pipermail/swift-evolution/Week-of-Mon-20170904/date.html
• https://twitter.com/pedantcoder

My take-aways are: