Commit Graph

2 Commits

Author SHA1 Message Date
Douglas Gregor 2ec748cd5a Implement explicit instantiations of member classes of class templates, e.g.,
template<typename T>
  struct X {
    struct Inner;
  };

  template struct X<int>::Inner;

This change is larger than it looks because it also fixes some
a problem with nested-name-specifiers and tags. We weren't requiring
the DeclContext associated with the scope specifier of a tag to be
complete. Therefore, when looking for something like "struct
X<int>::Inner", we weren't instantiating X<int>. 

This, naturally, uncovered a problem with member pointers, where we
were requiring the left-hand side of a member pointer access
expression (e.g., x->*) to be a complete type. However, this is wrong:
the semantics of this expression does not require a complete type (EDG
agrees).

Stuart vouched for me. Blame him.

llvm-svn: 71756
2009-05-14 00:28:11 +00:00
Douglas Gregor ac1fb65d0c Make sure to use RequireCompleteType rather than testing for
incomplete types. RequireCompleteType is needed when the type may be
completed by instantiating a template.

llvm-svn: 67643
2009-03-24 19:52:54 +00:00