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
diff --git a/lib/AST/DeclCXX.cpp b/lib/AST/DeclCXX.cpp
index 27065a7..66afac8 100644
--- a/lib/AST/DeclCXX.cpp
+++ b/lib/AST/DeclCXX.cpp
@@ -291,42 +291,10 @@
return new (Mem) OverloadedFunctionDecl(DC, N);
}
-LinkageSpecDecl::LinkageSpecDecl(SourceLocation L, LanguageIDs lang,
- Decl **InDecls, unsigned InNumDecls)
- : Decl(LinkageSpec, L), Language(lang), HadBraces(true),
- Decls(0), NumDecls(InNumDecls) {
- Decl **NewDecls = new Decl*[NumDecls];
- for (unsigned I = 0; I < NumDecls; ++I)
- NewDecls[I] = InDecls[I];
- Decls = NewDecls;
-}
-
-LinkageSpecDecl::~LinkageSpecDecl() {
- if (HadBraces)
- delete [] (Decl**)Decls;
-}
-
LinkageSpecDecl *LinkageSpecDecl::Create(ASTContext &C,
+ DeclContext *DC,
SourceLocation L,
- LanguageIDs Lang, Decl *D) {
+ LanguageIDs Lang, bool Braces) {
void *Mem = C.getAllocator().Allocate<LinkageSpecDecl>();
- return new (Mem) LinkageSpecDecl(L, Lang, D);
-}
-
-LinkageSpecDecl *LinkageSpecDecl::Create(ASTContext &C,
- SourceLocation L,
- LanguageIDs Lang,
- Decl **Decls, unsigned NumDecls) {
- void *Mem = C.getAllocator().Allocate<LinkageSpecDecl>();
- return new (Mem) LinkageSpecDecl(L, Lang, Decls, NumDecls);
-}
-
-LinkageSpecDecl::decl_const_iterator LinkageSpecDecl::decls_begin() const {
- if (hasBraces()) return (Decl**)Decls;
- else return (Decl**)&Decls;
-}
-
-LinkageSpecDecl::decl_iterator LinkageSpecDecl::decls_end() const {
- if (hasBraces()) return (Decl**)Decls + NumDecls;
- else return (Decl**)&Decls + 1;
+ return new (Mem) LinkageSpecDecl(DC, L, Lang, Braces);
}