File: ExtensionMacrosPlayground.swift

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//===----------------------------------------------------------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2023 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//

import MacroExamplesInterface

// MARK: - Default Fatal Error Implementation

@defaultFatalErrorImplementation
protocol API {
  func getItems() -> [String]
  func removeItem(id: String)
}

struct MyAPI: API {}

func runDefaultFatalErrorImplementationMacroPlayground() {
  let myAPI = MyAPI()

  print("Implementation of `API` protocol with default implementation: \(myAPI)")
}

// MARK: - Equatable Extension

@equatable
struct Pet {
  let name: String
}

func runEquatableExtensionMacroPlayground() {
  let cat = Pet(name: "Tom")
  let mouse = Pet(name: "Jerry")

  print("Has the cat \(cat) the same name as the mouse \(mouse)?", cat == mouse ? "Yes." : "No.")
}