Improve the extension warning for the use of ref-qualifiers, to

distinguish them from rvalue references. Using the rvalue-references
warning was weird when the ref-qualifier was '&'.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124316 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/clang/Basic/DiagnosticParseKinds.td b/include/clang/Basic/DiagnosticParseKinds.td
index f8e67199a984d3e944d89ad066a43792d562b3f5..7ce5017e18b6a176e5b149e0da55e4f99a056181 100644 (file)
--- a/include/clang/Basic/DiagnosticParseKinds.td
+++ b/include/clang/Basic/DiagnosticParseKinds.td
@@ -160,6 +160,8 @@ def err_illegal_decl_reference_to_reference : Error<
   "%0 declared as a reference to a reference">;
 def ext_rvalue_reference : ExtWarn<
   "rvalue references are a C++0x extension">, InGroup<CXX0x>;
+def ext_ref_qualifier : ExtWarn<
+  "reference qualifiers on functions are a C++0x extension">, InGroup<CXX0x>;
 def ext_inline_namespace : ExtWarn<
   "inline namespaces are a C++0x feature">, InGroup<CXX0x>;
 def err_argument_required_after_attribute : Error<

diff --git a/lib/Parse/ParseDecl.cpp b/lib/Parse/ParseDecl.cpp
index 29f9921217d968baf5be95813eae07e1579cb0b8..c4fce66b65779b513a01c10f34dec6e8ff9caabb 100644 (file)
--- a/lib/Parse/ParseDecl.cpp
+++ b/lib/Parse/ParseDecl.cpp
@@ -3102,7 +3102,7 @@ void Parser::ParseFunctionDeclarator(SourceLocation LParenLoc, Declarator &D,
       // Parse ref-qualifier[opt]
       if (Tok.is(tok::amp) || Tok.is(tok::ampamp)) {
         if (!getLang().CPlusPlus0x)
-          Diag(Tok, diag::ext_rvalue_reference);
+          Diag(Tok, diag::ext_ref_qualifier);
         
         RefQualifierIsLValueRef = Tok.is(tok::amp);
         RefQualifierLoc = ConsumeToken();
@@ -3353,7 +3353,7 @@ void Parser::ParseFunctionDeclarator(SourceLocation LParenLoc, Declarator &D,
     // Parse ref-qualifier[opt]
     if (Tok.is(tok::amp) || Tok.is(tok::ampamp)) {
       if (!getLang().CPlusPlus0x)
-        Diag(Tok, diag::ext_rvalue_reference);
+        Diag(Tok, diag::ext_ref_qualifier);
       
       RefQualifierIsLValueRef = Tok.is(tok::amp);
       RefQualifierLoc = ConsumeToken();

diff --git a/test/Parser/cxx0x-in-cxx98.cpp b/test/Parser/cxx0x-in-cxx98.cpp
new file mode 100644 (file)
index 0000000..e0cbc23
--- /dev/null
+++ b/test/Parser/cxx0x-in-cxx98.cpp
@@ -0,0 +1,10 @@
+// RUN: %clang_cc1 -std=c++98 -fsyntax-only -verify %s
+
+inline namespace N { // expected-warning{{inline namespaces are a C++0x feature}}
+struct X {
+  template<typename ...Args> // expected-warning{{variadic templates are a C++0x extension}}
+  void f(Args &&...) &; // expected-warning{{rvalue references are a C++0x extension}} \
+  // expected-warning{{reference qualifiers on functions are a C++0x extension}}
+};
+}
+