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.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61735 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 4 insertions, 0 deletions

diff --git a/lib/Parse/ParseDecl.cpp b/lib/Parse/ParseDecl.cpp
index c063654781..a2fdf41862 100644
--- a/lib/Parse/ParseDecl.cpp
+++ b/lib/Parse/ParseDecl.cpp
@@ -1123,6 +1123,10 @@ void Parser::ParseEnumSpecifier(DeclSpec &DS) {
 ///         identifier
 ///
 void Parser::ParseEnumBody(SourceLocation StartLoc, DeclTy *EnumDecl) {
+  // Enter the scope of the enum body and start the definition.
+  ParseScope EnumScope(this, Scope::DeclScope);
+  Actions.ActOnEnumStartDefinition(CurScope, EnumDecl);
+
   SourceLocation LBraceLoc = ConsumeBrace();
   
   // C does not allow an empty enumerator-list, C++ does [dcl.enum].