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8346eba525
This reverts commit f835a115e283dd03001f397ae1538b3745ad779a. ExistentialCollection tests failed in the release+asserts build. Swift SVN r27939
75 lines
1.8 KiB
Swift
75 lines
1.8 KiB
Swift
// RUN: rm -rf %t && mkdir -p %t
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// RUN: %target-build-swift -parse-stdlib %s -o %t/a.out
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// RUN: %target-run %t/a.out | FileCheck %s
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import Swift
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import SwiftShims
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typealias _HeapObject = SwiftShims.HeapObject
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func isUniquelyReferenced(inout x: Builtin.NativeObject) -> Bool {
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let p: UnsafePointer<_HeapObject> = Builtin.reinterpretCast(x)
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return _swift_isUniquelyReferenced_nonNull_native(p)
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}
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func isUniquelyReferencedOrPinned(inout x: Builtin.NativeObject) -> Bool {
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let p: UnsafePointer<_HeapObject> = Builtin.reinterpretCast(x)
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return _swift_isUniquelyReferencedOrPinned_nonNull_native(p)
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}
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class C {
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var value: AnyObject? = nil
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deinit { println("deallocated") }
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}
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println("starting")
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var ptr = Builtin.castToNativeObject(C())
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//CHECK: 1. true
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println(" 1. \(isUniquelyReferenced(&ptr))")
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//CHECK: 2. true
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println(" 2. \(isUniquelyReferencedOrPinned(&ptr))")
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var ptr2 : Builtin.NativeObject? = ptr
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//CHECK: 3. false
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println(" 3. \(isUniquelyReferenced(&ptr))")
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//CHECK: 4. false
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println(" 4. \(isUniquelyReferencedOrPinned(&ptr))")
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ptr2 = nil
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//CHECK: 5. true
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println(" 5. \(isUniquelyReferenced(&ptr))")
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//CHECK: 6. true
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println(" 6. \(isUniquelyReferencedOrPinned(&ptr))")
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ptr2 = ptr
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//CHECK: 7. false
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println(" 7. \(isUniquelyReferenced(&ptr))")
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//CHECK: 8. false
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println(" 8. \(isUniquelyReferencedOrPinned(&ptr))")
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let token : Builtin.NativeObject? = Builtin.tryPin(ptr)
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//CHECK: 9. false
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println(" 9. \(isUniquelyReferenced(&ptr))")
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//CHECK: 10. true
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println("10. \(isUniquelyReferencedOrPinned(&ptr))")
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Builtin.unpin(token)
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//CHECK: 11. false
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println("11. \(isUniquelyReferenced(&ptr))")
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//CHECK: 12. false
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println("12. \(isUniquelyReferencedOrPinned(&ptr))")
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ptr2 = ptr
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//CHECK: 13. false
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println("13. \(isUniquelyReferenced(&ptr))")
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//CHECK: 14. false
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println("14. \(isUniquelyReferencedOrPinned(&ptr))")
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