http://llvm.org/bugs/show_bug.cgi?id=22109
Bug ID: 22109
Summary: Assertion failure when taking the size of template
argument that is an ill-formed lambda type
Product: clang
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: Frontend
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
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.
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