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      <base href="https://bugs.webkit.org/" />
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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - Assertion failure when accessing TDZ variable in catch through eval"
   href="https://bugs.webkit.org/show_bug.cgi?id=160554">160554</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Assertion failure when accessing TDZ variable in catch through eval
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>WebKit
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>WebKit Local Build
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>Unspecified
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Unspecified
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>Normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>P2
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>JavaScriptCore
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>webkit-unassigned&#64;lists.webkit.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>andre.bargull&#64;gmail.com
          </td>
        </tr></table>
      <p>
        <div>
        <pre>SVN: rev204118
Build with: perl Tools/Scripts/build-jsc --gtk --debug

Test case:
---
try {
    throw {};
} catch ({a = eval(&quot;b&quot;), b}) {
}
---

Assertion failure:
---
ASSERTION FAILED: returnValue
---

Stack trace:
---
#0  0x00007ffff6da9fd8 in WTFCrash () at ../../Source/WTF/wtf/Assertions.cpp:323
#1  0x00007ffff69008c8 in JSC::checkedReturn (returnValue=...) at ../../Source/JavaScriptCore/interpreter/Interpreter.cpp:812
#2  0x00007ffff69032dc in JSC::Interpreter::execute (this=0x7fffefff1048, eval=0x7fffaf7f7ee0, callFrame=0x7fffffffcaa0, thisValue=..., scope=0x7fffaf7c8be0)
    at ../../Source/JavaScriptCore/interpreter/Interpreter.cpp:1238
#3  0x00007ffff68fec27 in JSC::eval (callFrame=0x7fffffffcaa0) at ../../Source/JavaScriptCore/interpreter/Interpreter.cpp:195
#4  0x00007ffff69a7691 in JSC::(anonymous namespace)::llint_slow_path_call_eval (exec=0x7fffffffcb40, pc=0x7fffaf3f7030) at ../../Source/JavaScriptCore/llint/LLIntSlowPaths.cpp:1445
#5  0x00007ffff69b3201 in llint_entry () at ../../Source/WTF/wtf/RefPtr.h:79
#6  0x00007ffff69ac563 in vmEntryToJavaScript () at ../../Source/WTF/wtf/RefPtr.h:79
#7  0x00007ffff694a53c in JSC::JITCode::execute (this=0x7fffeffb5500, vm=0x7fffafa00000, protoCallFrame=0x7fffffffcd20) at ../../Source/JavaScriptCore/jit/JITCode.cpp:80
#8  0x00007ffff690186a in JSC::Interpreter::execute (this=0x7fffefff1048, program=0x7fffaf7f7f70, callFrame=0x7fffaf7df940, thisObj=0x7fffaf7a79c0)
    at ../../Source/JavaScriptCore/interpreter/Interpreter.cpp:964
#9  0x00007ffff6afbe2e in JSC::evaluate (exec=0x7fffaf7df940, source=..., thisValue=..., returnedException=...) at ../../Source/JavaScriptCore/runtime/Completion.cpp:107
#10 0x000000000043b0ad in runWithScripts (globalObject=0x7fffaf7df900, scripts=..., uncaughtExceptionName=..., dump=false, module=false) at ../../Source/JavaScriptCore/jsc.cpp:2135
#11 0x000000000043c08d in runJSC (vm=0x7fffafa00000, options=...) at ../../Source/JavaScriptCore/jsc.cpp:2384
#12 0x000000000043c5b0 in jscmain (argc=2, argv=0x7fffffffdb98) at ../../Source/JavaScriptCore/jsc.cpp:2437
#13 0x0000000000439f15 in main (argc=2, argv=0x7fffffffdb98) at ../../Source/JavaScriptCore/jsc.cpp:2000
---</pre>
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