[cfe-commits] r85927 - in /cfe/trunk: include/clang/Parse/Parser.h lib/Parse/Parser.cpp

[John McCall]

Author: rjmccall
Date: Tue Nov  3 13:33:12 2009
New Revision: 85927

URL: http://llvm.org/viewvc/llvm-project?rev=85927&view=rev
Log:
Silence a warning by giving Parser::FieldCallback a virtual destructor, and
anchor the vtable to Parser.cpp for good measure.


Modified:
    cfe/trunk/include/clang/Parse/Parser.h
    cfe/trunk/lib/Parse/Parser.cpp

Modified: cfe/trunk/include/clang/Parse/Parser.h
URL: 
http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Parse/Parser.h?rev=85927&r1=85926&r2=85927&view=diff

==============================================================================
--- cfe/trunk/include/clang/Parse/Parser.h (original)
+++ cfe/trunk/include/clang/Parse/Parser.h Tue Nov  3 13:33:12 2009
@@ -983,6 +983,10 @@
 
   struct FieldCallback {
     virtual DeclPtrTy invoke(FieldDeclarator &Field) = 0;
+    virtual ~FieldCallback() {}
+
+  private:
+    virtual void _anchor();
   };
 
   void ParseStructDeclaration(DeclSpec &DS, FieldCallback &Callback);

Modified: cfe/trunk/lib/Parse/Parser.cpp
URL: 
http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Parse/Parser.cpp?rev=85927&r1=85926&r2=85927&view=diff

==============================================================================
--- cfe/trunk/lib/Parse/Parser.cpp (original)
+++ cfe/trunk/lib/Parse/Parser.cpp Tue Nov  3 13:33:12 2009
@@ -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() {
+}


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