Fix rdar://6480479 - [parser] infinite loop on invalid input
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61975 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Parse/ParseObjc.cpp b/lib/Parse/ParseObjc.cpp
index f52ecfb..90a1494 100644
--- a/lib/Parse/ParseObjc.cpp
+++ b/lib/Parse/ParseObjc.cpp
@@ -255,6 +255,12 @@
// If we don't have an @ directive, parse it as a function definition.
if (Tok.isNot(tok::at)) {
+ // The code below does not consume '}'s because it is afraid of eating the
+ // end of a namespace. Because of the way this code is structured, an
+ // erroneous r_brace would cause an infinite loop if not handled here.
+ if (Tok.is(tok::r_brace))
+ break;
+
// FIXME: as the name implies, this rule allows function definitions.
// We could pass a flag or check for functions during semantic analysis.
ParseDeclarationOrFunctionDefinition();