Introduce support for "transparent" DeclContexts, which are

DeclContexts whose members are visible from enclosing DeclContexts up
to (and including) the innermost enclosing non-transparent
DeclContexts. Transparent DeclContexts unify the mechanism to be used
for various language features, including C enumerations, anonymous
unions, C++0x inline namespaces, and C++ linkage
specifications. Please refer to the documentation in the Clang
internals manual for more information.

Only enumerations and linkage specifications currently use transparent
DeclContexts.

Still to do: use transparent DeclContexts to implement anonymous
unions and GCC's anonymous structs extension, and, later, the C++0x
features. We also need to tighten up the DeclContext/ScopedDecl link
to ensure that every ScopedDecl is in a single DeclContext, which
will ensure that we can then enforce ownership and reduce the memory
footprint of DeclContext.

llvm-svn: 61735

1 files changed, 1 insertions, 16 deletions

diff --git a/clang/lib/Sema/IdentifierResolver.h b/clang/lib/Sema/IdentifierResolver.h
index 30846dcd174..3dab1b53a75 100644
--- a/clang/lib/Sema/IdentifierResolver.h
+++ b/clang/lib/Sema/IdentifierResolver.h
@@ -91,22 +91,7 @@ class IdentifierResolver {
     inline DeclsTy::iterator decls_begin() { return Decls.begin(); }
     inline DeclsTy::iterator decls_end() { return Decls.end(); }
 
-    /// FindContext - Returns an iterator pointing just after the decl that is
-    /// in the given context or in a parent of it. The search is in reverse
-    /// order, from end to begin.
-    DeclsTy::iterator FindDeclVisibleInContext(const LookupContext &Ctx) {
-      return FindDeclVisibleInContext(Ctx, Decls.end());
-    }
-
-    /// FindContext - Returns an iterator pointing just after the decl that is
-    /// in the given context or in a parent of it. The search is in reverse
-    /// order, from end to begin.
-    DeclsTy::iterator FindDeclVisibleInContext(const LookupContext &Ctx,
-                                  const DeclsTy::iterator &Start);
-
-    void AddDecl(NamedDecl *D) {
-      Decls.insert(FindDeclVisibleInContext(LookupContext(D)), D);
-    }
+    void AddDecl(NamedDecl *D) { Decls.push_back(D); }
 
     /// AddShadowed - Add a decl by putting it directly above the 'Shadow' decl.
     /// Later lookups will find the 'Shadow' decl first. The 'Shadow' decl must