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31c01eab73
includes a number of QoI things to help people write the correct code. I will commit the testcase for it as the next patch. The bulk of this patch is moving the stdlib, testsuite and validation testsuite to the new syntax. I moved a few uses of "as" patterns back to as? expressions in the stdlib as well. Swift SVN r27959
47 lines
1.0 KiB
Swift
47 lines
1.0 KiB
Swift
// RUN: %target-run-simple-swift | FileCheck %s
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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 observeValueForKeyPath(keyPath: String?, ofObject object: AnyObject?, change: [NSObject : AnyObject]?, context: UnsafeMutablePointer<Void>) {
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if context == &observeContext {
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if let change_ = change {
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if let amount = change_[NSKeyValueChangeNewKey as NSString] as? Int {
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println("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++
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// CHECK: amount: 43
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dump(value)
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