Silence a warning by giving Parser::FieldCallback a virtual destructor, and
anchor the vtable to Parser.cpp for good measure.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85927 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/clang/Parse/Parser.h b/include/clang/Parse/Parser.h
index 14dc8f8..3849f9d 100644
--- a/include/clang/Parse/Parser.h
+++ b/include/clang/Parse/Parser.h
@@ -983,6 +983,10 @@
struct FieldCallback {
virtual DeclPtrTy invoke(FieldDeclarator &Field) = 0;
+ virtual ~FieldCallback() {}
+
+ private:
+ virtual void _anchor();
};
void ParseStructDeclaration(DeclSpec &DS, FieldCallback &Callback);
diff --git a/lib/Parse/Parser.cpp b/lib/Parse/Parser.cpp
index e69cb72..cc4aec6 100644
--- a/lib/Parse/Parser.cpp
+++ b/lib/Parse/Parser.cpp
@@ -1019,3 +1019,10 @@
PP.AnnotateCachedTokens(Tok);
return true;
}
+
+// Anchor the Parser::FieldCallback vtable to this translation unit.
+// We use a spurious method instead of the destructor because
+// destroying FieldCallbacks can actually be slightly
+// performance-sensitive.
+void Parser::FieldCallback::_anchor() {
+}