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45 lines
1.4 KiB
Plaintext
45 lines
1.4 KiB
Plaintext
//===--- Refcounting.mm - Reference-counting for ObjC ---------------------===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2014 - 2016 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See http://swift.org/LICENSE.txt for license information
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// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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#include <Foundation/NSObject.h>
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#include <objc/runtime.h>
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#include "swift/Runtime/HeapObject.h"
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#include "swift/Runtime/Metadata.h"
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#include "gtest/gtest.h"
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using namespace swift;
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static unsigned DestroyedObjCCount = 0;
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/// A trivial class that increments DestroyedObjCCount when deallocated.
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@interface ObjCTestClass : NSObject @end
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@implementation ObjCTestClass
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- (void) dealloc {
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DestroyedObjCCount++;
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[super dealloc];
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}
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@end
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static HeapObject *make_objc_object() {
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return static_cast<HeapObject *>([ObjCTestClass new]);
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}
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TEST(RefcountingTest, objc_unknown_retain_release_n) {
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auto object = make_objc_object();
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swift_unknownRetain_n(object, 32);
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swift_unknownRetain(object);
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swift_unknownRelease_n(object, 31);
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swift_unknownRelease(object);
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swift_unknownRelease_n(object, 1);
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swift_unknownRelease(object);
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// The object should be destroyed by now.
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EXPECT_EQ(1u, DestroyedObjCCount);
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}
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