Improve diagnostics and recovery when parsing @synthesized definitions

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89227 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 12 insertions, 2 deletions

diff --git a/include/clang/Basic/DiagnosticParseKinds.td b/include/clang/Basic/DiagnosticParseKinds.td
index 28c46cd2d7..23d49fe75b 100644
--- a/include/clang/Basic/DiagnosticParseKinds.td
+++ b/include/clang/Basic/DiagnosticParseKinds.td
@@ -201,6 +201,8 @@ def warn_expected_implementation : Warning<
   "@end must appear in an @implementation context">;
 def error_property_ivar_decl : Error<
   "property synthesize requires specification of an ivar">;
+def err_synthesized_property_name : Error<
+  "expected a property name in @synthesize">;
 def warn_semicolon_before_method_body : Warning<
   "semicolon before method body is ignored">,
   InGroup<DiagGroup<"semicolon-before-method-body">>, DefaultIgnore;
diff --git a/lib/Parse/ParseObjc.cpp b/lib/Parse/ParseObjc.cpp
index e1f045bd8e..8d6fd209c6 100644
--- a/lib/Parse/ParseObjc.cpp
+++ b/lib/Parse/ParseObjc.cpp
@@ -1236,7 +1236,13 @@ Parser::DeclPtrTy Parser::ParseObjCPropertySynthesize(SourceLocation atLoc) {
     return DeclPtrTy();
   }
 
-  while (Tok.is(tok::identifier)) {
+  while (true) {
+    if (Tok.isNot(tok::identifier)) {
+      Diag(Tok, diag::err_synthesized_property_name);
+      SkipUntil(tok::semi);
+      return DeclPtrTy();
+    }
+    
     IdentifierInfo *propertyIvar = 0;
     IdentifierInfo *propertyId = Tok.getIdentifierInfo();
     SourceLocation propertyLoc = ConsumeToken(); // consume property name
@@ -1256,8 +1262,10 @@ Parser::DeclPtrTy Parser::ParseObjCPropertySynthesize(SourceLocation atLoc) {
       break;
     ConsumeToken(); // consume ','
   }
-  if (Tok.isNot(tok::semi))
+  if (Tok.isNot(tok::semi)) {
     Diag(Tok, diag::err_expected_semi_after) << "@synthesize";
+    SkipUntil(tok::semi);
+  }
   else
     ConsumeToken(); // consume ';'
   return DeclPtrTy();