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// main.swift
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2018 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 Foundation
// Auxiliary functions.
func use(_ c : ObjCClass) {}
func use(_ c : PureClass) {}
func doCall(_ fn : () -> ()) { fn() }
// Pure Swift objects.
class PureBase {
let base_string = "hello"
}
class PureClass : PureBase {
let string = "world"
func f() {
doCall() { [unowned self] in
use(self) // break here
}
doCall() { [weak self] in
use(self!) // break here
}
}
}
// Objective-C objects.
class Base : NSObject {
let base_string = "hello"
}
class ObjCClass : Base {
let string = "world"
func f() {
doCall() { [unowned self] in
use(self) // break here
}
doCall() { [weak self] in
use(self!) // break here
}
}
}
PureClass().f()
ObjCClass().f()
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