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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 --- - SBModule::FindFirstType does not find a second namespaced typedef with the same name"
href="https://llvm.org/bugs/show_bug.cgi?id=31704">31704</a>
</td>
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<tr>
<th>Summary</th>
<td>SBModule::FindFirstType does not find a second namespaced typedef with the same name
</td>
</tr>
<tr>
<th>Product</th>
<td>lldb
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Macintosh
</td>
</tr>
<tr>
<th>OS</th>
<td>MacOS X
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<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>alexandru.croitor@qt.io
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=17871" name="attach_17871" title="Example code which shows the issue regarding FindFirstType">attachment 17871</a> <a href="attachment.cgi?id=17871&action=edit" title="Example code which shows the issue regarding FindFirstType">[details]</a></span>
Example code which shows the issue regarding FindFirstType
SBModule::FindFirstType has an issue with finding namespaced typedefs.
Consider the code:
class Foo {
public:
typedef bool MyType;
};
class Bar {
public:
typedef int MyType;
};
int main(int argc, char* argv[]) {
Foo::MyType foo;
Bar::MyType bar;
(void) foo;
(void) bar;
return 0;
}
Compile with clang++ -O0 -g ./main.cpp
Run with lldb ./a.out and go into python script mode
<span class="quote">>>> lldb.target.FindTypes("MyType").GetSize()</span >
2
<span class="quote">>>> print lldb.target.FindFirstType("MyType")</span >
typedef Foo::MyType
<span class="quote">>>> print lldb.target.FindFirstType("Foo::MyType")</span >
typedef Foo::MyType
<span class="quote">>>> print lldb.target.FindFirstType("Bar::MyType")</span >
As you can see, trying to find Bar::MyType fails, but if I iterate over
FindTypes result, I can find both.
(lldb) version
lldb-360.99.0
clang revision a41b64721d4be78870711cbb7b5af156a9e1f4ad
llvm revision 3c45ea423a9e3d27eaf77af0639a73e0c56d9a35
The issue seems to be inside lldb::TypeSP Module::FindFirstType(const
SymbolContext &sc, const ConstString &name, bool exact_match)
which passes "1" as the max_matches argument, and this gets propagated in a
wrong way inside the implementation, where essentially a list of the two types
is found, and the second type is not checked because the first type didn't
match.</pre>
</div>
</p>
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