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<base href="https://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - hasAncestor matcher crashes on certain constructs"
href="https://llvm.org/bugs/show_bug.cgi?id=26227">26227</a>
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<th>Summary</th>
<td>hasAncestor matcher crashes on certain constructs
</td>
</tr>
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<th>Product</th>
<td>clang
</td>
</tr>
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<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>Linux
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>-New Bugs
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>dcheng@google.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>We hit this assert when we were testing a tool to automatically rename things:
$ third_party/llvm-build/Release+Asserts/bin/rewrite_to_chrome_style test.cc
Error while trying to load a compilation database:
Could not auto-detect compilation database for file "test.cc"
No compilation database found in /usr/local/google/home/dcheng/src/chrome/src
or any parent directory
json-compilation-database: Error while opening JSON database: No such file or
directory
Running without flags.
rewrite_to_chrome_style:
/usr/local/google/ssd/src/chrome/src/third_party/llvm/tools/clang/lib/ASTMatchers/ASTMatchFinder.cpp:637:
bool
clang::ast_matchers::internal::{anonymous}::MatchASTVisitor::memoizedMatchesAncestorOfRecursively(const
clang::ast_type_traits::DynTypedNode&, const
clang::ast_matchers::internal::DynTypedMatcher&,
clang::ast_matchers::internal::BoundNodesTreeBuilder*,
clang::ast_matchers::internal::ASTMatchFinder::AncestorMatchMode): Assertion
`!Parents.empty() && "Found node that is not in the parent map."' failed.
Aborted (core dumped)
The reduced repro from danakj@:
$ cat test.cc
class MyClass {
int c[1];
public:
static MyClass Create() { return MyClass(); }
};
>From our debugging, it looks like the assert occurs when trying to match
ancestors of the initializer in the compiler-generated move ctor.</pre>
</div>
</p>
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