1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
|
//===--- Refcounting.mm - Reference-counting for ObjC ---------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2017 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
//
//===----------------------------------------------------------------------===//
#include <Foundation/NSObject.h>
#include <objc/runtime.h>
#include "swift/Runtime/HeapObject.h"
#include "swift/Runtime/Metadata.h"
#include "gtest/gtest.h"
using namespace swift;
static unsigned DestroyedObjCCount = 0;
/// A trivial class that increments DestroyedObjCCount when deallocated.
@interface ObjCTestClass : NSObject @end
@implementation ObjCTestClass
- (void) dealloc {
DestroyedObjCCount++;
[super dealloc];
}
@end
static HeapObject *make_objc_object() {
return static_cast<HeapObject *>([ObjCTestClass new]);
}
TEST(RefcountingTest, objc_unknown_retain_release_n) {
auto object = make_objc_object();
swift_unknownObjectRetain_n(object, 32);
swift_unknownObjectRetain(object);
swift_unknownObjectRelease_n(object, 31);
swift_unknownObjectRelease(object);
swift_unknownObjectRelease_n(object, 1);
swift_unknownObjectRelease(object);
// The object should be destroyed by now.
EXPECT_EQ(1u, DestroyedObjCCount);
}
|
