[LLVMbugs] [Bug 16174] New: typedef causes instantiation of a class which fails due to an incomplete type

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=16174

            Bug ID: 16174
           Summary: typedef causes instantiation of a class which fails
                    due to an incomplete type
           Product: clang
           Version: 3.2
          Hardware: Macintosh
                OS: MacOS X
            Status: NEW
          Severity: normal
          Priority: P
         Component: -New Bugs
          Assignee: unassignedclangbugs at nondot.org
          Reporter: tommitissari at hotmail.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

template <typename T>
struct A
{
    struct B
    {
        struct C
        {
            T data; // #[0]
        };

        C data; // #[1]
    };

    typedef typename B::C X; // #[2]
};

struct I // #[4]
: A<I>   // #[3]
{
};

int main()
{
    return 0;
}

----

[0]: Error: Field has incomplete type 'I'
[1]: In instantiation of member class 'A<I>::B::C' requested here
[2]: In instantiation of member class 'A<I>::B' requested here
[3]: In instantiation of template class 'A<I>' requested here
[4]: Definition of 'I' is not complete until the closing "}"

If you comment out the line #[1], the code compiles.

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