From 8141f496ffee4d70b3563e2a3b091b1826a7859f Mon Sep 17 00:00:00 2001
From: Roberto Raggi <roberto.raggi@nokia.com>
Date: Tue, 23 Mar 2010 12:27:09 +0100
Subject: Warn for invalid references.

---
 src/shared/cplusplus/CheckDeclarator.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/shared/cplusplus/CheckDeclarator.cpp b/src/shared/cplusplus/CheckDeclarator.cpp
index 86e3541d56..44aaf32a0b 100644
--- a/src/shared/cplusplus/CheckDeclarator.cpp
+++ b/src/shared/cplusplus/CheckDeclarator.cpp
@@ -241,6 +241,9 @@ bool CheckDeclarator::visit(ReferenceAST *ast)
 {
     const bool rvalueRef = (tokenKind(ast->reference_token) == T_AMPER_AMPER);
 
+    if (_fullySpecifiedType->isReferenceType())
+        translationUnit()->error(ast->firstToken(), "cannot declare reference to a reference");
+
     ReferenceType *refTy = control()->referenceType(_fullySpecifiedType, rvalueRef);
     FullySpecifiedType ty(refTy);
     _fullySpecifiedType = ty;
-- 
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