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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Generic lambdas used within NSDMI's cause crash when they capture 'this'"
href="http://llvm.org/bugs/show_bug.cgi?id=19876">19876</a>
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<th>Summary</th>
<td>Generic lambdas used within NSDMI's cause crash when they capture 'this'
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>trunk
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Windows NT
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>C++1y
</td>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>faisalv@yahoo.com
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</tr>
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<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
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<th>Classification</th>
<td>Unclassified
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<p>
<div>
<pre>The following C++1y code results in a crash:
struct X {
int m = 10;
int n = [this](auto) { return m; }(20);
};
This is because when implicitly instantiating the generic lambda's call
operator specialization body, Sema gets confused and is unable to determine the
current 'this' type when transforming the MemberExpr 'm'.
That is SemaExprCXX.cpp:Sema::getCurrentThisType() is unable to calculate that
the this type should be X* since it looks for the nearest enclosing
FunctionDeclDC - which is obviously null.</pre>
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