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<base href="http://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Assertion failure when taking the size of template argument that is an ill-formed lambda type"
href="http://llvm.org/bugs/show_bug.cgi?id=22109">22109</a>
</td>
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<tr>
<th>Summary</th>
<td>Assertion failure when taking the size of template argument that is an ill-formed lambda type
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</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>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>Frontend
</td>
</tr>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>rtrieu@google.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>template <class T>
class A;
class B {
A<int> a;
};
template <class X>
void F(X x) {
int y = sizeof(x);
}
void Test(B b) {
F([b]() {});
}
clang -std=c++11 foo.cc
clang-3.5: ../tools/clang/lib/AST/RecordLayoutBuilder.cpp:2807: const
clang::ASTRecordLayout &clang::ASTContext::getASTRecordLayout(const
clang::RecordDecl *) const: Assertion `!D->isInvalidDecl() && "Cannot get
layout of invalid decl!"' failed
It looks like the lambda is not marked as invalid, but should be. Since Clang
thinks the lambda is valid, it assumes that all parts of the lambda are valid
as well, then asserting when it finds that the captured variable b has invalid
type.</pre>
</div>
</p>
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