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ece0951924
* Migrate from `UnsafePointer<Void>` to `UnsafeRawPointer`. As proposed in SE-0107: UnsafeRawPointer. `void*` imports as `UnsafeMutableRawPointer`. `const void*` imports as `UnsafeRawPointer`. Occurrences of `UnsafePointer<Void>` are replaced with UnsafeRawPointer. * Migrate overlays from UnsafePointer<Void> to UnsafeRawPointer. This requires explicit memory binding in several places, particularly in NSData and CoreAudio. * Fix a bunch of test cases for Void->Raw migration. * qsort takes IUO values * Bridge `Unsafe[Mutable]RawPointer as `void [const] *`. * Parse #dsohandle as UnsafeMutableRawPointer * Update a bunch of test cases for Void->Raw migration. * Trivial fix for the SceneKit test case. * Add an UnsafeRawPointer self initializer. This is unfortunately necessary for assignment between types imported from C. * Tiny simplification of the initializer.
48 lines
1.0 KiB
Swift
48 lines
1.0 KiB
Swift
// RUN: %target-run-simple-swift | FileCheck %s
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// REQUIRES: executable_test
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// REQUIRES: objc_interop
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// rdar://problem/19060227
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import Foundation
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class ObservedValue: NSObject {
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dynamic var amount = 0
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}
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class ValueObserver: NSObject {
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private var observeContext = 0
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let observedValue: ObservedValue
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init(value: ObservedValue) {
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observedValue = value
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super.init()
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observedValue.addObserver(self, forKeyPath: "amount", options: .new, context: &observeContext)
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}
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deinit {
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observedValue.removeObserver(self, forKeyPath: "amount")
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}
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override func observeValue(forKeyPath keyPath: String?, of object: Any?, change: [NSKeyValueChangeKey : Any]?, context: UnsafeMutableRawPointer?) {
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if context == &observeContext {
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if let change_ = change {
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if let amount = change_[.newKey] as? Int {
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print("Observed value updated to \(amount)")
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}
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}
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}
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}
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}
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let value = ObservedValue()
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value.amount = 42
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let observer = ValueObserver(value: value)
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// CHECK: updated to 43
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value.amount += 1
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// CHECK: amount: 43
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dump(value)
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