From: Fariborz Jahanian <fjahanian@apple.com>
Date: Fri, 17 May 2013 17:58:11 +0000 (+0000)
Subject: Objective-C parsing. Error recovery when category implementation
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=e4bb74973cfdf0c82aca2088ccfae5e61727c846;p=clang

Objective-C parsing. Error recovery when category implementation
declaration is illegally protocol qualified. // rdar://13920026


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@182136 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Parse/ParseObjc.cpp b/lib/Parse/ParseObjc.cpp
index 4a572f1993..607b953aad 100644
--- a/lib/Parse/ParseObjc.cpp
+++ b/lib/Parse/ParseObjc.cpp
@@ -1541,6 +1541,12 @@ Parser::ParseObjCAtImplementationDeclaration(SourceLocation AtLoc) {
       return DeclGroupPtrTy();
     }
     rparenLoc = ConsumeParen();
+    if (Tok.is(tok::less)) { // we have illegal '<' try to recover
+      Diag(Tok, diag::err_unexpected_protocol_qualifier);
+      AttributeFactory attr;
+      DeclSpec DS(attr);
+      (void)ParseObjCProtocolQualifiers(DS);
+    }
     ObjCImpDecl = Actions.ActOnStartCategoryImplementation(
                                     AtLoc, nameId, nameLoc, categoryId,
                                     categoryLoc);
diff --git a/test/Parser/objc-error-qualified-implementation.m b/test/Parser/objc-error-qualified-implementation.m
index 444fb5dab4..8bbd502360 100644
--- a/test/Parser/objc-error-qualified-implementation.m
+++ b/test/Parser/objc-error-qualified-implementation.m
@@ -19,3 +19,11 @@
 
 @implementation K <P // expected-error {{@implementation declaration can not be protocol qualified}}
 @end // expected-error {{expected '>'}}
+
+// rdar://13920026
+@implementation I (Cat) <P>  // expected-error {{@implementation declaration can not be protocol qualified}}
+- (void) Meth {}
+@end
+
+@implementation I (Cat1) <P // expected-error {{@implementation declaration can not be protocol qualified}}
+@end // expected-error {{expected '>'}}