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<base href="https://bugs.llvm.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - LLDB crashes when inspecting an object created using ni::type_hierarchy"
href="https://bugs.llvm.org/show_bug.cgi?id=48342">48342</a>
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<th>Summary</th>
<td>LLDB crashes when inspecting an object created using ni::type_hierarchy
</td>
</tr>
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<th>Product</th>
<td>lldb
</td>
</tr>
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<th>Version</th>
<td>unspecified
</td>
</tr>
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<th>Hardware</th>
<td>Macintosh
</td>
</tr>
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<th>OS</th>
<td>MacOS X
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>All Bugs
</td>
</tr>
<tr>
<th>Assignee</th>
<td>lldb-dev@lists.llvm.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>hbursk@fender.com
</td>
</tr>
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<th>CC</th>
<td>jdevlieghere@apple.com, llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>When using the Native Instruments open source library matchine, the
ni::type_hierarchy objects crash the LLDB RPC Server when inspected using Xcode
12.
Here is the issue filed against the matchine library:
<a href="https://github.com/NativeInstruments/matchine/issues/1">https://github.com/NativeInstruments/matchine/issues/1</a>
Here is an example that crashes LLDB. It requires the matchine library which
has a dependency on boost.
```
#include <iostream>
#include <ni/type_hierarchy.h>
struct EventBase {
EventBase() = default;
virtual ~EventBase() = default;
};
using Event = ni::type_hierarchy::from_base<EventBase>;
NI_SUB_TYPE(struct TestEvent, Event)
{
int value = 0;
TestEvent(int value_)
: value( value_ )
{
}
};
int main(int argc, const char * argv[]) {
TestEvent testEvent(100);
// insert breakpoint here to inspect testEvent
// inpecting testEvent will crash LLDB
TestEvent testEvent2(200);
return 0;
}
```</pre>
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