llvm-project/clang/test/Modules/Inputs/redecl-merge-bottom-prefix.h
Douglas Gregor dcf2508791 [Modules] Cope better with top-level declarations loaded after being declared in the current translation unit <rdar://problem/13189985>.
These two related tweaks to keep the information associated with a
given identifier correct when the identifier has been given some
top-level information (say, a top-level declaration) and more
information is then loaded from a module. The first ensures that an
identifier that was "interesting" before being loaded from an AST is
considered to be different from its on-disk counterpart. Otherwise, we
lose such changes when writing the current translation unit as a
module.

Second, teach the code that injects AST-loaded names into the
identifier chain for name lookup to keep the most recent declaration,
so that we don't end up confusing our declaration chains by having a
different declaration in there.

llvm-svn: 174895
2013-02-11 18:16:18 +00:00

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Objective-C

// A class that is declared in the 'bottom' module, then loaded from
// one of the modules it depends on. It needs to be visible when this
// module is loaded.
@class DeclaredThenLoaded;