mirror of
https://github.com/apple/swift.git
synced 2025-12-14 20:36:38 +01:00
46309d9794
These functions don't accept local variable heap memory, although the names make it sound like they work on anything. When you try, they mistakenly identify such things as ObjC objects, call through to the equivalent objc_* function, and crash confusingly. This adds Object to the name of each one to make it more clear what they accept. rdar://problem/37285743
45 lines
1.4 KiB
Plaintext
45 lines
1.4 KiB
Plaintext
//===--- 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);
|
|
}
|