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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - ASSERTION FAILED: "!scope.exception()" with Object.isSealed/isFrozen and uninitialized module bindings"
href="https://bugs.webkit.org/show_bug.cgi?id=168605">168605</a>
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<th>Summary</th>
<td>ASSERTION FAILED: "!scope.exception()" with Object.isSealed/isFrozen and uninitialized module bindings
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr>
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<th>Product</th>
<td>WebKit
</td>
</tr>
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<th>Version</th>
<td>WebKit Local Build
</td>
</tr>
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<th>Hardware</th>
<td>Unspecified
</td>
</tr>
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<th>OS</th>
<td>Unspecified
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>Normal
</td>
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<th>Priority</th>
<td>P2
</td>
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<th>Component</th>
<td>JavaScriptCore
</td>
</tr>
<tr>
<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
</td>
</tr>
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<th>Reporter</th>
<td>andre.bargull@gmail.com
</td>
</tr></table>
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<pre>Revision: 212634
Test case, t.js:
---
import* as self from "./t.js";
Object.isSealed(self);
Object.isFrozen(self);
export let a;
export function b(){}
---
Triggers this assertion:
---
ASSERTION FAILED: !scope.exception()
../../Source/JavaScriptCore/runtime/JSModuleNamespaceObject.cpp(130) : static bool JSC::JSModuleNamespaceObject::getOwnPropertySlot(JSC::JSObject*, JSC::ExecState*, JSC::PropertyName, JSC::PropertySlot&)
---
Stacktrace:
---
#0 0x00007ffff6dc6f98 in WTFCrash () at ../../Source/WTF/wtf/Assertions.cpp:323
#1 0x00007ffff6bc9856 in JSC::JSModuleNamespaceObject::getOwnPropertySlot (cell=0x7fffaef88110, exec=0x7fffffffca10, propertyName=..., slot=...)
at ../../Source/JavaScriptCore/runtime/JSModuleNamespaceObject.cpp:130
#2 0x00007ffff6be471d in JSC::JSObject::getOwnPropertyDescriptor (this=0x7fffaef88110, exec=0x7fffffffca10, propertyName=..., descriptor=...) at ../../Source/JavaScriptCore/runtime/JSObject.cpp:3187
#3 0x00007ffff6c626b3 in JSC::objectConstructorIsSealed (exec=0x7fffffffca10) at ../../Source/JavaScriptCore/runtime/ObjectConstructor.cpp:642
...
---</pre>
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