PR9903: Recover from a member functon declared with the 'typedef' specifier by

dropping the specifier, just like we do for non-member functions and function
templates declared 'typedef'. Patch by Brian Brooks!

llvm-svn: 168108

clang/lib/Parse/ParseDeclCXX.cpp

@@ -1985,16 +1985,9 @@ void Parser::ParseCXXClassMemberDeclaration(AccessSpecifier AS,
       if (DS.getStorageClassSpec() == DeclSpec::SCS_typedef) {
         Diag(DeclaratorInfo.getIdentifierLoc(),
              diag::err_function_declared_typedef);
-        // This recovery skips the entire function body. It would be nice
-        // to simply call ParseCXXInlineMethodDef() below, however Sema
-        // assumes the declarator represents a function, not a typedef.
-        ConsumeBrace();
-        SkipUntil(tok::r_brace, /*StopAtSemi*/false);
 
-        // Consume the optional ';'
-        if (Tok.is(tok::semi))
-          ConsumeToken();
-        return;
+        // Recover by treating the 'typedef' as spurious.
+        DS.ClearStorageClassSpecs();
       }
 
       Decl *FunDecl =

clang/test/Parser/cxx-decl.cpp

@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -verify -fsyntax-only -triple i386-linux -pedantic %s
+// RUN: %clang_cc1 -verify -fsyntax-only -triple i386-linux -pedantic -fcxx-exceptions -fexceptions %s
 
 const char const *x10; // expected-warning {{duplicate 'const' declaration specifier}}
 
@@ -124,6 +124,14 @@ void CodeCompleteConsumer::() { // expected-error {{xpected unqualified-id}}
 // PR4111
 void f(sqrgl); // expected-error {{unknown type name 'sqrgl'}}
 
+// PR9903
+struct S {
+  typedef void a() { }; // expected-error {{function definition declared 'typedef'}}
+  typedef void c() try { } catch(...) { } // expected-error {{function definition declared 'typedef'}}
+  int n, m;
+  typedef S() : n(1), m(2) { } // expected-error {{function definition declared 'typedef'}}
+};
+
 // PR8380
 extern ""      // expected-error {{unknown linkage language}}
 test6a { ;// expected-error {{C++ requires a type specifier for all declarations}} \

clang/test/Parser/cxx0x-decl.cpp

@@ -34,3 +34,8 @@ struct MultiCV {
 };
 
 static_assert(something, ""); // expected-error {{undeclared identifier}}
+
+// PR9903
+struct SS {
+  typedef void d() = default; // expected-error {{function definition declared 'typedef'}} expected-error {{only special member functions may be defaulted}}
+};