[Webkit-unassigned] [Bug 164666] New: ASSERTION FAILED: isAttributedString || [string isKindOfClass:[NSString class]]

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=164666

            Bug ID: 164666
           Summary: ASSERTION FAILED: isAttributedString || [string
                    isKindOfClass:[NSString class]]
    Classification: Unclassified
           Product: WebKit
           Version: Other
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: New Bugs
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: ryanhaddad at apple.com

https://build.webkit.org/results/Apple%20Sierra%20Debug%20WK1%20(Tests)/r208617%20(1217)/results.html

ASSERTION FAILED: isAttributedString || [string isKindOfClass:[NSString class]]
/Volumes/Data/slave/sierra-debug/build/Source/WebKit/mac/WebView/WebHTMLView.mm(7014) : -[WebHTMLView(WebNSTextInputSupport) insertText:]
1   0x10718f74d WTFCrash
2   0x10c8ef50e -[WebHTMLView(WebNSTextInputSupport) insertText:]
3   0x1059c3e6d -[TextInputController insertText:]
4   0x7fffce06c3fc __invoking___
5   0x7fffce06c281 -[NSInvocation invoke]
6   0x1175b0c75 JSC::Bindings::ObjcInstance::invokeObjcMethod(JSC::ExecState*, JSC::Bindings::ObjcMethod*)
7   0x1175b03b8 JSC::Bindings::ObjcInstance::invokeMethod(JSC::ExecState*, JSC::RuntimeMethod*)
8   0x117b2a512 JSC::callRuntimeMethod(JSC::ExecState*)
9   0x106d379da JSC::LLInt::handleHostCall(JSC::ExecState*, JSC::Instruction*, JSC::JSValue, JSC::CodeSpecializationKind)
10  0x106d33b39 JSC::LLInt::setUpCall(JSC::ExecState*, JSC::Instruction*, JSC::CodeSpecializationKind, JSC::JSValue, JSC::LLIntCallLinkInfo*)
11  0x106d32e33 JSC::LLInt::genericCall(JSC::ExecState*, JSC::Instruction*, JSC::CodeSpecializationKind)
12  0x106d32d23 llint_slow_path_call
13  0x106d409be llint_entry
14  0x106d3933e vmEntryToJavaScript
15  0x106b13cb9 JSC::JITCode::execute(JSC::VM*, JSC::ProtoCallFrame*)
16  0x106a918d4 JSC::Interpreter::execute(JSC::ProgramExecutable*, JSC::ExecState*, JSC::JSObject*)
17  0x106387e4d JSC::evaluate(JSC::ExecState*, JSC::SourceCode const&, JSC::JSValue, WTF::NakedPtr<JSC::Exception>&)
18  0x10638801e JSC::profiledEvaluate(JSC::ExecState*, JSC::ProfilingReason, JSC::SourceCode const&, JSC::JSValue, WTF::NakedPtr<JSC::Exception>&)
19  0x117b4c05b WebCore::JSMainThreadExecState::profiledEvaluate(JSC::ExecState*, JSC::ProfilingReason, JSC::SourceCode const&, JSC::JSValue, WTF::NakedPtr<JSC::Exception>&)
20  0x117b4be58 WebCore::ScriptController::evaluateInWorld(WebCore::ScriptSourceCode const&, WebCore::DOMWrapperWorld&, WebCore::ExceptionDetails*)
21  0x117b4c13d WebCore::ScriptController::evaluate(WebCore::ScriptSourceCode const&, WebCore::ExceptionDetails*)
22  0x117b5acc6 WebCore::ScriptElement::executeScript(WebCore::ScriptSourceCode const&)
23  0x117b59b59 WebCore::ScriptElement::prepareScript(WTF::TextPosition const&, WebCore::ScriptElement::LegacyTypeSupport)
24  0x1164a1a91 WebCore::HTMLScriptRunner::runScript(WebCore::Element*, WTF::TextPosition const&)
25  0x1164a18aa WebCore::HTMLScriptRunner::execute(WTF::PassRefPtr<WebCore::Element>, WTF::TextPosition const&)
26  0x1163c3c8a WebCore::HTMLDocumentParser::runScriptsForPausedTreeBuilder()
27  0x1163c4103 WebCore::HTMLDocumentParser::pumpTokenizerLoop(WebCore::HTMLDocumentParser::SynchronousMode, bool, WebCore::PumpSession&)
28  0x1163c2f28 WebCore::HTMLDocumentParser::pumpTokenizer(WebCore::HTMLDocumentParser::SynchronousMode)
29  0x1163c2a7b WebCore::HTMLDocumentParser::pumpTokenizerIfPossible(WebCore::HTMLDocumentParser::SynchronousMode)
30  0x1163c53c6 WebCore::HTMLDocumentParser::append(WTF::RefPtr<WTF::StringImpl>&&)
31  0x115e112b2 WebCore::DecodedDataDocumentParser::appendBytes(WebCore::DocumentWriter&, char const*, unsigned long)

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