Implement __attribute__((internal_linkage)).
The attrubite is applicable to functions and variables and changes
the linkage of the subject to internal.
This is the same functionality as C-style "static", but applicable to
class methods; and the same as anonymouns namespaces, but can apply
to individual methods of a class.
Following the proposal in
http://lists.llvm.org/pipermail/cfe-dev/2015-October/045580.html
llvm-svn: 252648
diff --git a/clang/lib/AST/Decl.cpp b/clang/lib/AST/Decl.cpp
index f760079..0f6e8b0 100644
--- a/clang/lib/AST/Decl.cpp
+++ b/clang/lib/AST/Decl.cpp
@@ -1217,6 +1217,10 @@
static LinkageInfo computeLVForDecl(const NamedDecl *D,
LVComputationKind computation) {
+ // Internal_linkage attribute overrides other considerations.
+ if (D->hasAttr<InternalLinkageAttr>())
+ return LinkageInfo::internal();
+
// Objective-C: treat all Objective-C declarations as having external
// linkage.
switch (D->getKind()) {
@@ -1307,6 +1311,10 @@
public:
static LinkageInfo getLVForDecl(const NamedDecl *D,
LVComputationKind computation) {
+ // Internal_linkage attribute overrides other considerations.
+ if (D->hasAttr<InternalLinkageAttr>())
+ return LinkageInfo::internal();
+
if (computation == LVForLinkageOnly && D->hasCachedLinkage())
return LinkageInfo(D->getCachedLinkage(), DefaultVisibility, false);