[Webkit-unassigned] [Bug 192481] New: Injected bundle for WebKitTestRunner leaks WKTypeRef objects
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Thu Dec 6 16:04:32 PST 2018
https://bugs.webkit.org/show_bug.cgi?id=192481
Bug ID: 192481
Summary: Injected bundle for WebKitTestRunner leaks WKTypeRef
objects
Product: WebKit
Version: WebKit Local Build
Hardware: Unspecified
OS: Unspecified
Status: NEW
Severity: Normal
Priority: P2
Component: Tools / Tests
Assignee: webkit-unassigned at lists.webkit.org
Reporter: ddkilzer at webkit.org
CC: joepeck at webkit.org, lforschler at apple.com,
simon.fraser at apple.com, thorton at apple.com,
webkit-bug-importer at group.apple.com
The injected bundle for WebKitTestRunner leaks WKTypeRef objects, mostly WKNSNumber objects and a WKNSDictionary.
STACK OF 1 INSTANCE OF 'ROOT LEAK: <WKNSDictionary>':
[thread 0x7fff93a32380]:
53 libdyld.dylib 0x7fff5b08d015 start + 1
52 com.apple.WebKit.WebContent 0x1010af382 main + 34 XPCServiceMain.mm:165
51 com.apple.WebKit.WebContent 0x1010af094 WebKit::XPCServiceMain(int, char const**) + 1188 XPCServiceMain.mm:157
50 libxpc.dylib 0x7fff5b3e69ca xpc_main + 433
49 libxpc.dylib 0x7fff5b3e7d77 _xpc_objc_main + 580
48 com.apple.AppKit 0x7fff30609a72 NSApplicationMain + 804
47 com.apple.AppKit 0x7fff3063a885 -[NSApplication run] + 764
46 com.apple.AppKit 0x7fff30ddbe34 -[NSApplication(NSEvent) _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 3044
45 com.apple.AppKit 0x7fff30645a73 _DPSNextEvent + 2085
44 com.apple.HIToolbox 0x7fff32394884 _BlockUntilNextEventMatchingListInModeWithFilter + 64
43 com.apple.HIToolbox 0x7fff32394b06 ReceiveNextEventCommon + 613
42 com.apple.HIToolbox 0x7fff32394d96 RunCurrentEventLoopInMode + 286
41 com.apple.CoreFoundation 0x7fff330aa153 CFRunLoopRunSpecific + 483
40 com.apple.CoreFoundation 0x7fff330aa8ed __CFRunLoopRun + 1293
39 com.apple.CoreFoundation 0x7fff330ab470 __CFRunLoopDoSources0 + 208
38 com.apple.CoreFoundation 0x7fff3318242c __CFRunLoopDoSource0 + 108
37 com.apple.CoreFoundation 0x7fff330c8a11 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17
36 com.apple.JavaScriptCore 0x2b14cfea4 WTF::RunLoop::performWork(void*) + 36 RunLoopCF.cpp:38
35 com.apple.JavaScriptCore 0x2b14cf5fd WTF::RunLoop::performWork() + 445 RunLoop.cpp:124
34 com.apple.JavaScriptCore 0x2b1467e5d WTF::Function<void ()>::operator()() const + 173 Function.h:56
33 com.apple.WebKit 0x101127de9 WTF::Function<void ()>::CallableWrapper<IPC::Connection::enqueueIncomingMessage(std::__1::unique_ptr<IPC::Decoder, std::__1::default_delete<IPC::Decoder> >)::$_14>::call() + 25 Function.h:101
32 com.apple.WebKit 0x101127ed8 IPC::Connection::enqueueIncomingMessage(std::__1::unique_ptr<IPC::Decoder, std::__1::default_delete<IPC::Decoder> >)::$_14::operator()() + 104 Connection.cpp:957
31 com.apple.WebKit 0x101106a0d IPC::Connection::dispatchOneIncomingMessage() + 1533 Connection.cpp:1074
30 com.apple.WebKit 0x1010f8551 IPC::Connection::dispatchMessage(std::__1::unique_ptr<IPC::Decoder, std::__1::default_delete<IPC::Decoder> >) + 721 Connection.cpp:0
29 com.apple.WebKit 0x101105c8c IPC::Connection::dispatchMessage(IPC::Decoder&) + 476 Connection.cpp:979
28 com.apple.WebKit 0x101e5edfb WebKit::WebProcess::didReceiveMessage(IPC::Connection&, IPC::Decoder&) + 155 WebProcess.cpp:681
27 com.apple.WebKit 0x1022f2b3d WebKit::WebProcess::didReceiveWebProcessMessage(IPC::Connection&, IPC::Decoder&) + 237 WebProcessMessageReceiver.cpp:131
26 com.apple.WebKit 0x1022f5397 void IPC::handleMessage<Messages::WebProcess::CreateWebPage, WebKit::WebProcess, void (WebKit::WebProcess::*)(unsigned long long, WebKit::WebPageCreationParameters&&)>(IPC::Decoder&, WebKit::WebProcess*, void (WebKit::WebProcess::*)(unsigned long long, WebKit::WebPageCreationParameters&&)) + 359 HandleMessage.h:134
25 com.apple.WebKit 0x1022fbb10 void IPC::callMemberFunction<WebKit::WebProcess, void (WebKit::WebProcess::*)(unsigned long long, WebKit::WebPageCreationParameters&&), std::__1::tuple<unsigned long long, WebKit::WebPageCreationParameters>, std::__1::integer_sequence<unsigned long, 0ul, 1ul> >(std::__1::tuple<unsigned long long, WebKit::WebPageCreationParameters>&&, WebKit::WebProcess*, void (WebKit::WebProcess::*)(unsigned long long, WebKit::WebPageCreationParameters&&)) + 96 HandleMessage.h:48
24 com.apple.WebKit 0x1022fbdb0 void IPC::callMemberFunctionImpl<WebKit::WebProcess, void (WebKit::WebProcess::*)(unsigned long long, WebKit::WebPageCreationParameters&&), std::__1::tuple<unsigned long long, WebKit::WebPageCreationParameters>, 0ul, 1ul>(WebKit::WebProcess*, void (WebKit::WebProcess::*)(unsigned long long, WebKit::WebPageCreationParameters&&), std::__1::tuple<unsigned long long, WebKit::WebPageCreationParameters>&&, std::__1::integer_sequence<unsigned long, 0ul, 1ul>) + 192 HandleMessage.h:42
23 com.apple.WebKit 0x101e5dec8 WebKit::WebProcess::createWebPage(unsigned long long, WebKit::WebPageCreationParameters&&) + 232 WebProcess.cpp:615
22 com.apple.WebKit 0x1021a301e WebKit::WebPage::create(unsigned long long, WebKit::WebPageCreationParameters&&) + 158 WebPage.cpp:348
21 com.apple.WebKit 0x101ecc7a3 WebKit::InjectedBundle::didCreatePage(WebKit::WebPage*) + 67 InjectedBundle.cpp:548
20 com.apple.WebKit 0x101ef1f43 WebKit::InjectedBundleClient::didCreatePage(WebKit::InjectedBundle&, WebKit::WebPage&) + 99 InjectedBundleClient.cpp:47
19 com.apple.WebKitTestRunner.InjectedBundle 0x2b90eb9d4 WTR::InjectedBundle::didCreatePage(OpaqueWKBundle const*, OpaqueWKBundlePage const*, void const*) + 36 InjectedBundle.cpp:70
18 com.apple.WebKitTestRunner.InjectedBundle 0x2b90ebc7b WTR::InjectedBundle::didCreatePage(OpaqueWKBundlePage const*) + 667 InjectedBundle.cpp:124
17 com.apple.WebKit 0x101f0368b WKBundlePostSynchronousMessage + 91 WKBundle.cpp:74
16 com.apple.WebKit 0x101ec7034 WebKit::InjectedBundle::postSynchronousMessage(WTF::String const&, API::Object*, WTF::RefPtr<API::Object, WTF::DumbPtrTraits<API::Object> >&) + 372 InjectedBundle.cpp:141
15 com.apple.WebKit 0x101ec75a8 bool IPC::Connection::sendSync<Messages::WebProcessPool::HandleSynchronousMessage>(Messages::WebProcessPool::HandleSynchronousMessage&&, Messages::WebProcessPool::HandleSynchronousMessage::Reply&&, unsigned long long, WTF::Seconds, WTF::OptionSet<IPC::SendSyncOption>) + 1208 Connection.h:478
14 com.apple.WebKit 0x101eefc5d bool IPC::Decoder::decode<std::__1::tuple<WebKit::UserData&>, (void*)0>(std::__1::tuple<WebKit::UserData&>&) + 29 Decoder.h:150
13 com.apple.WebKit 0x101eefc8d IPC::ArgumentCoder<std::__1::tuple<WebKit::UserData&> >::decode(IPC::Decoder&, std::__1::tuple<WebKit::UserData&>&) + 29 ArgumentCoders.h:210
12 com.apple.WebKit 0x101eefcd0 bool IPC::TupleCoder<1ul, WebKit::UserData&>::decode<WebKit::UserData, (void*)0>(IPC::Decoder&, std::__1::tuple<WebKit::UserData&>&) + 48 ArgumentCoders.h:173
11 com.apple.WebKit 0x1012c17ad bool IPC::Decoder::decode<WebKit::UserData, (void*)0>(WebKit::UserData&) + 29 Decoder.h:150
10 com.apple.WebKit 0x1012c17fd bool IPC::ArgumentCoder<WebKit::UserData>::decode<WebKit::UserData, (void*)0>(IPC::Decoder&, WebKit::UserData&) + 29 ArgumentCoder.h:96
9 com.apple.WebKit 0x1015f3ffd WebKit::UserData::decode(IPC::Decoder&, WebKit::UserData&) + 29 UserData.cpp:151
8 com.apple.WebKit 0x1015f445c WebKit::UserData::decode(IPC::Decoder&, WTF::RefPtr<API::Object, WTF::DumbPtrTraits<API::Object> >&) + 1100 UserData.cpp:392
7 com.apple.WebKit 0x101657516 API::Dictionary::create(WTF::HashMap<WTF::String, WTF::RefPtr<API::Object, WTF::DumbPtrTraits<API::Object> >, WTF::StringHash, WTF::HashTraits<WTF::String>, WTF::HashTraits<WTF::RefPtr<API::Object, WTF::DumbPtrTraits<API::Object> > > >) + 38 APIDictionary.cpp:41
6 com.apple.WebKit 0x1016575ba API::ObjectImpl<(API::Object::Type)9>::operator new(unsigned long) + 26 APIObject.h:264
5 com.apple.WebKit 0x1014c1a6c API::Object::newObject(unsigned long, API::Object::Type) + 620 APIObject.mm:207
4 com.apple.CoreFoundation 0x7fff3302cff6 +[NSDictionary allocWithZone:] + 102
3 libobjc.A.dylib 0x7fff5a469f29 +[NSObject allocWithZone:] + 16
2 libobjc.A.dylib 0x7fff5a465cea class_createInstance + 87
1 libsystem_malloc.dylib 0x7fff5b23858e calloc + 30
0 libsystem_malloc.dylib 0x7fff5b237ca0 malloc_zone_calloc + 123
====
15 (880 bytes) ROOT LEAK: <WKNSDictionary 0x7ff974b060c0> [64]
13 (800 bytes) _dictionary + 16 --> 0x7ff979107880 [256]
1 (48 bytes) 0x7ff979105750 [48]
1 (48 bytes) 0x7ff9791064b0 [48]
1 (48 bytes) 0x7ff979108180 [48]
1 (48 bytes) 0x7ff979108980 [48]
1 (48 bytes) <WKNSNumber 0x7ff974b00270> [48]
1 (48 bytes) <WKNSNumber 0x7ff974b002a0> [48]
1 (48 bytes) <WKNSNumber 0x7ff974b28150> [48]
1 (48 bytes) <WKNSNumber 0x7ff974b288a0> [48]
1 (48 bytes) <WKNSNumber 0x7ff974b29ce0> [48]
1 (48 bytes) <WKNSNumber 0x7ff974b2a9d0> [48]
1 (32 bytes) 0x7ff979107a70 [32]
1 (32 bytes) 0x7ff9791081b0 [32]
1 (16 bytes) _dictionary + 48 --> 0x7ff979107cd0 [16]
STACK OF 1 INSTANCE OF 'ROOT LEAK: <WKNSNumber>':
[thread 0x7fff93a32380]:
70 libdyld.dylib 0x7fff5b08d015 start + 1
69 com.apple.WebKit.WebContent 0x1010af382 main + 34 XPCServiceMain.mm:165
68 com.apple.WebKit.WebContent 0x1010af094 WebKit::XPCServiceMain(int, char const**) + 1188 XPCServiceMain.mm:157
67 libxpc.dylib 0x7fff5b3e69ca xpc_main + 433
66 libxpc.dylib 0x7fff5b3e7d77 _xpc_objc_main + 580
65 com.apple.AppKit 0x7fff30609a72 NSApplicationMain + 804
64 com.apple.AppKit 0x7fff3063a885 -[NSApplication run] + 764
63 com.apple.AppKit 0x7fff30ddbe34 -[NSApplication(NSEvent) _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 3044
62 com.apple.AppKit 0x7fff30645a73 _DPSNextEvent + 2085
61 com.apple.HIToolbox 0x7fff32394884 _BlockUntilNextEventMatchingListInModeWithFilter + 64
60 com.apple.HIToolbox 0x7fff32394b06 ReceiveNextEventCommon + 613
59 com.apple.HIToolbox 0x7fff32394d96 RunCurrentEventLoopInMode + 286
58 com.apple.CoreFoundation 0x7fff330aa153 CFRunLoopRunSpecific + 483
57 com.apple.CoreFoundation 0x7fff330aad5b __CFRunLoopRun + 2427
56 com.apple.CoreFoundation 0x7fff330b378a __CFRunLoopDoTimers + 346
55 com.apple.CoreFoundation 0x7fff330b3c87 __CFRunLoopDoTimer + 1095
54 com.apple.CoreFoundation 0x7fff330b4014 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 20
53 com.apple.JavaScriptCore 0x2b14d1631 WTF::timerFired(__CFRunLoopTimer*, void*) + 49 RunLoopTimerCF.cpp:52
52 com.apple.WebCore 0x2a31661f6 WTF::RunLoopTimer<WebCore::DataURLDecoder::DecodingResultDispatcher>::fired() + 102 RunLoopTimer.h:72
51 com.apple.WebCore 0x2a3165b08 WebCore::DataURLDecoder::DecodingResultDispatcher::timerFired() + 264 DataURLDecoder.cpp:100
50 com.apple.WebCore 0x2a3165da3 WTF::Function<void (std::optional<WebCore::DataURLDecoder::Result>)>::operator()(std::optional<WebCore::DataURLDecoder::Result>) const + 227 Function.h:56
49 com.apple.WebCore 0x2a2a67719 WTF::Function<void (std::optional<WebCore::DataURLDecoder::Result>)>::CallableWrapper<WebCore::ResourceLoader::loadDataURL()::$_9>::call(std::optional<WebCore::DataURLDecoder::Result>) + 57 Function.h:101
48 com.apple.WebCore 0x2a2a67b78 auto WebCore::ResourceLoader::loadDataURL()::$_9::operator()<std::optional<WebCore::DataURLDecoder::Result> >(std::optional<WebCore::DataURLDecoder::Result>) + 792 ResourceLoader.cpp:272
47 com.apple.WebCore 0x2a2a6f609 WebCore::SubresourceLoader::didReceiveResponse(WebCore::ResourceResponse const&, WTF::CompletionHandler<void ()>&&) + 2297 SubresourceLoader.cpp:370
46 com.apple.WebCore 0x2a2a52cf6 WebCore::ResourceLoader::didReceiveResponse(WebCore::ResourceResponse const&, WTF::CompletionHandler<void ()>&&) + 342 ResourceLoader.cpp:482
45 com.apple.WebCore 0x2a299ea35 WTF::CompletionHandlerCallingScope::~CompletionHandlerCallingScope() + 21 CompletionHandler.h:78
44 com.apple.WebCore 0x2a29aca5f WTF::CompletionHandlerCallingScope::~CompletionHandlerCallingScope() + 47 CompletionHandler.h:78
43 com.apple.WebCore 0x2a1621bfd WTF::CompletionHandler<void ()>::operator()() + 205 CompletionHandler.h:59
42 com.apple.WebCore 0x2a000eaf5 WTF::Function<void ()>::~Function() + 21 Forward.h:54
41 com.apple.WebCore 0x2a000ebaf WTF::Function<void ()>::~Function() + 175 memory:2603
40 com.apple.WebCore 0x2a2a7c1f9 WTF::Function<void ()>::CallableWrapper<WebCore::SubresourceLoader::didReceiveResponse(WebCore::ResourceResponse const&, WTF::CompletionHandler<void ()>&&)::$_6>::~CallableWrapper() + 25 Function.h:91
39 com.apple.WebCore 0x2a2a7c1d5 WTF::Function<void ()>::CallableWrapper<WebCore::SubresourceLoader::didReceiveResponse(WebCore::ResourceResponse const&, WTF::CompletionHandler<void ()>&&)::$_6>::~CallableWrapper() + 21 Function.h:91
38 com.apple.WebCore 0x2a2a7c2d1 WTF::Function<void ()>::CallableWrapper<WebCore::SubresourceLoader::didReceiveResponse(WebCore::ResourceResponse const&, WTF::CompletionHandler<void ()>&&)::$_6>::~CallableWrapper() + 49 Function.h:91
37 com.apple.WebCore 0x2a2a6f8b5 WebCore::SubresourceLoader::didReceiveResponse(WebCore::ResourceResponse const&, WTF::CompletionHandler<void ()>&&)::$_6::~$_6() + 21 SubresourceLoader.cpp:370
36 com.apple.WebCore 0x2a2a75253 WebCore::SubresourceLoader::didReceiveResponse(WebCore::ResourceResponse const&, WTF::CompletionHandler<void ()>&&)::$_6::~$_6() + 35 SubresourceLoader.cpp:370
35 com.apple.WebCore 0x2a299ea35 WTF::CompletionHandlerCallingScope::~CompletionHandlerCallingScope() + 21 CompletionHandler.h:78
34 com.apple.WebCore 0x2a29aca5f WTF::CompletionHandlerCallingScope::~CompletionHandlerCallingScope() + 47 CompletionHandler.h:78
33 com.apple.WebCore 0x2a1621bf4 WTF::CompletionHandler<void ()>::operator()() + 196 CompletionHandler.h:59
32 com.apple.WebCore 0x2a000f1ed WTF::Function<void ()>::operator()() const + 173 Function.h:56
31 com.apple.WebCore 0x2a2a683c9 WTF::Function<void ()>::CallableWrapper<auto WebCore::ResourceLoader::loadDataURL()::$_9::operator()<std::optional<WebCore::DataURLDecoder::Result> >(std::optional<WebCore::DataURLDecoder::Result>)::'lambda'()>::call() + 25 Function.h:101
30 com.apple.WebCore 0x2a2a68558 auto WebCore::ResourceLoader::loadDataURL()::$_9::operator()<std::optional<WebCore::DataURLDecoder::Result> >(std::optional<WebCore::DataURLDecoder::Result>)::'lambda'()::operator()() + 200 ResourceLoader.cpp:278
29 com.apple.WebCore 0x2a2a6e4f8 WebCore::SubresourceLoader::didFinishLoading(WebCore::NetworkLoadMetrics const&) + 984 SubresourceLoader.cpp:644
28 com.apple.WebCore 0x2a2a7074d WebCore::SubresourceLoader::notifyDone(WebCore::LoadCompletionType) + 125 SubresourceLoader.cpp:743
27 com.apple.WebCore 0x2a2af85f6 WebCore::CachedResourceLoader::loadDone(WebCore::LoadCompletionType, bool) + 214 CachedResourceLoader.cpp:1319
26 com.apple.WebCore 0x2a29f8c3d WebCore::FrameLoader::loadDone(WebCore::LoadCompletionType) + 45 FrameLoader.cpp:794
25 com.apple.WebCore 0x2a29f8c00 WebCore::FrameLoader::checkCompleted() + 592 FrameLoader.cpp:0
24 com.apple.WebCore 0x2a29f8ed6 WebCore::FrameLoader::checkLoadComplete() + 502 FrameLoader.cpp:2651
23 com.apple.WebCore 0x2a2a04101 WebCore::FrameLoader::checkLoadCompleteForThisFrame() + 2353 FrameLoader.cpp:2492
22 com.apple.WebKit 0x102027dfb WebKit::WebFrameLoaderClient::dispatchDidFailLoad(WebCore::ResourceError const&) + 155 WebFrameLoaderClient.cpp:572
21 com.apple.WebKit 0x101efeda5 WebKit::InjectedBundlePageLoaderClient::didFailLoadWithErrorForFrame(WebKit::WebPage&, WebKit::WebFrame&, WebCore::ResourceError const&, WTF::RefPtr<API::Object, WTF::DumbPtrTraits<API::Object> >&) + 149 InjectedBundlePageLoaderClient.cpp:158
20 com.apple.WebKitTestRunner.InjectedBundle 0x2b90f7430 WTR::InjectedBundlePage::didFailLoadWithErrorForFrame(OpaqueWKBundlePage const*, OpaqueWKBundleFrame const*, OpaqueWKError const*, void const**, void const*) + 48 InjectedBundlePage.cpp:610
19 com.apple.WebKitTestRunner.InjectedBundle 0x2b90f8a0c WTR::InjectedBundlePage::didFailLoadWithErrorForFrame(OpaqueWKBundleFrame const*, OpaqueWKError const*) + 76 InjectedBundlePage.cpp:981
18 com.apple.WebKitTestRunner.InjectedBundle 0x2b911d61f WTR::TestRunner::shouldDumpFrameLoadCallbacks() + 95 TestRunner.cpp:268
17 com.apple.WebKit 0x101f0368b WKBundlePostSynchronousMessage + 91 WKBundle.cpp:74
16 com.apple.WebKit 0x101ec7034 WebKit::InjectedBundle::postSynchronousMessage(WTF::String const&, API::Object*, WTF::RefPtr<API::Object, WTF::DumbPtrTraits<API::Object> >&) + 372 InjectedBundle.cpp:141
15 com.apple.WebKit 0x101ec75a8 bool IPC::Connection::sendSync<Messages::WebProcessPool::HandleSynchronousMessage>(Messages::WebProcessPool::HandleSynchronousMessage&&, Messages::WebProcessPool::HandleSynchronousMessage::Reply&&, unsigned long long, WTF::Seconds, WTF::OptionSet<IPC::SendSyncOption>) + 1208 Connection.h:478
14 com.apple.WebKit 0x101eefc5d bool IPC::Decoder::decode<std::__1::tuple<WebKit::UserData&>, (void*)0>(std::__1::tuple<WebKit::UserData&>&) + 29 Decoder.h:150
13 com.apple.WebKit 0x101eefc8d IPC::ArgumentCoder<std::__1::tuple<WebKit::UserData&> >::decode(IPC::Decoder&, std::__1::tuple<WebKit::UserData&>&) + 29 ArgumentCoders.h:210
12 com.apple.WebKit 0x101eefcd0 bool IPC::TupleCoder<1ul, WebKit::UserData&>::decode<WebKit::UserData, (void*)0>(IPC::Decoder&, std::__1::tuple<WebKit::UserData&>&) + 48 ArgumentCoders.h:173
11 com.apple.WebKit 0x1012c17ad bool IPC::Decoder::decode<WebKit::UserData, (void*)0>(WebKit::UserData&) + 29 Decoder.h:150
10 com.apple.WebKit 0x1012c17fd bool IPC::ArgumentCoder<WebKit::UserData>::decode<WebKit::UserData, (void*)0>(IPC::Decoder&, WebKit::UserData&) + 29 ArgumentCoder.h:96
9 com.apple.WebKit 0x1015f3ffd WebKit::UserData::decode(IPC::Decoder&, WebKit::UserData&) + 29 UserData.cpp:151
8 com.apple.WebKit 0x1015f41c0 WebKit::UserData::decode(IPC::Decoder&, WTF::RefPtr<API::Object, WTF::DumbPtrTraits<API::Object> >&) + 432 UserData.cpp:356
7 com.apple.WebKit 0x1015f67e2 API::Number<bool, (API::Object::Type)31>::decode(IPC::Decoder&, WTF::RefPtr<API::Object, WTF::DumbPtrTraits<API::Object> >&) + 66 APINumber.h:56
6 com.apple.WebKit 0x10124d19a API::Number<bool, (API::Object::Type)31>::create(bool) + 42 APINumber.h:40
5 com.apple.WebKit 0x101250dda API::ObjectImpl<(API::Object::Type)31>::operator new(unsigned long) + 26 APIObject.h:264
4 com.apple.WebKit 0x1014c1935 API::Object::newObject(unsigned long, API::Object::Type) + 309 APIObject.mm:166
3 com.apple.Foundation 0x7fff3518814e NSAllocateObject + 19
2 libobjc.A.dylib 0x7fff5a465cea class_createInstance + 87
1 libsystem_malloc.dylib 0x7fff5b23858e calloc + 30
0 libsystem_malloc.dylib 0x7fff5b237ca0 malloc_zone_calloc + 123
====
1 (48 bytes) ROOT LEAK: <WKNSNumber 0x7ff974850b00> [48]
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