From: Richard Smith <richard-llvm@metafoo.co.uk>
Date: Tue, 21 Jul 2015 00:23:34 +0000 (+0000)
Subject: Fix crash-on-invalid: don't look ahead past an unknown token, it might be EOF.
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=ce95e4dcf4f15083647ac058601ce435ac9ed1fa;p=clang

Fix crash-on-invalid: don't look ahead past an unknown token, it might be EOF.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@242744 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Parse/ParseDeclCXX.cpp b/lib/Parse/ParseDeclCXX.cpp
index 0fb1de94e8..79138900b8 100644
--- a/lib/Parse/ParseDeclCXX.cpp
+++ b/lib/Parse/ParseDeclCXX.cpp
@@ -546,7 +546,8 @@ Decl *Parser::ParseUsingDeclaration(unsigned Context,
   } else if (ParseUnqualifiedId(
                  SS, /*EnteringContext=*/false,
                  /*AllowDestructorName=*/true,
-                 /*AllowConstructorName=*/NextToken().isNot(tok::equal),
+                 /*AllowConstructorName=*/!(Tok.is(tok::identifier) &&
+                                            NextToken().is(tok::equal)),
                  ParsedType(), TemplateKWLoc, Name)) {
     SkipUntil(tok::semi);
     return nullptr;
diff --git a/test/Parser/cxx0x-decl.cpp b/test/Parser/cxx0x-decl.cpp
index 994104fc9d..23f46a1847 100644
--- a/test/Parser/cxx0x-decl.cpp
+++ b/test/Parser/cxx0x-decl.cpp
@@ -132,3 +132,7 @@ void NoMissingSemicolonHere(struct S
                             [3]);
 template<int ...N> void NoMissingSemicolonHereEither(struct S
                                                      ... [N]);
+
+// This must be at the end of the file; we used to look ahead past the EOF token here.
+// expected-error@+1 {{expected unqualified-id}}
+using