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, 0 insertions, 17 deletions

diff --git a/clang/lib/AST/DeclSerialization.cpp b/clang/lib/AST/DeclSerialization.cpp
index 68412f968a5..0a298139bd9 100644
--- a/clang/lib/AST/DeclSerialization.cpp
+++ b/clang/lib/AST/DeclSerialization.cpp
@@ -686,29 +686,12 @@ void LinkageSpecDecl::EmitInRec(Serializer& S) const {
   Decl::EmitInRec(S);
   S.EmitInt(getLanguage());
   S.EmitBool(HadBraces);
-  if (HadBraces) {
-    S.EmitInt(NumDecls);
-    for (decl_const_iterator D = decls_begin(), DEnd = decls_end(); 
-         D != DEnd; ++D)
-      S.EmitPtr(*D);
-  } else {
-    S.EmitPtr((Decl*)Decls);
-  }
 }
 
 void LinkageSpecDecl::ReadInRec(Deserializer& D, ASTContext& C) {
   Decl::ReadInRec(D, C);
   Language = static_cast<LanguageIDs>(D.ReadInt());
   HadBraces = D.ReadBool();
-  if (HadBraces) {
-    NumDecls = D.ReadInt();
-    Decl **NewDecls = new Decl*[NumDecls];
-    Decls = NewDecls;
-    for (unsigned I = 0; I < NumDecls; ++I)
-      D.ReadPtr(NewDecls[I]);
-  } else {
-    D.ReadPtr(this->Decls);
-  }
 }
 
 //===----------------------------------------------------------------------===//