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[Runtime] Print type names in escape-from-deinit messages.

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In addition to giving the object's address, we can print the name of its
type (since the object is still live at this point).

rdar://108882759
This commit is contained in:
Alastair Houghton
2023-05-05 11:51:49 +01:00
parent 3d7df83624
commit 18a753cd87
1 changed files with 9 additions and 4 deletions
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13
stdlib/public/runtime/HeapObject.cpp
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@@ -815,11 +815,16 @@ void swift::swift_deallocClassInstance(HeapObject *object,
size_t allocatedSize,
size_t allocatedAlignMask) {
size_t retainCount = swift_retainCount(object);
if (SWIFT_UNLIKELY(retainCount > 1))
if (SWIFT_UNLIKELY(retainCount > 1)) {
auto descriptor = object->metadata->getTypeContextDescriptor();
swift::fatalError(0,
"Object %p deallocated with retain count %zd, reference "
"may have escaped from deinit.\n",
object, retainCount);
"Object %p of class %s deallocated with retain count %zd, "
"reference may have escaped from deinit.\n",
object,
descriptor ? descriptor->Name.get() : "<unknown>",
retainCount);
}
#if SWIFT_OBJC_INTEROP
// We need to let the ObjC runtime clean up any associated objects or weak