From: Fariborz Jahanian <fjahanian@apple.com>
Date: Thu, 2 Feb 2012 00:49:12 +0000 (+0000)
Subject: objc: don't crash if primary class is missing and continuation class
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=c645ddf240efb112ff8f17371811deb3ebc1a5b5;p=clang

objc: don't crash if primary class is missing and continuation class
is declaring ivars. // rdar://10752081



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149573 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Sema/SemaDecl.cpp b/lib/Sema/SemaDecl.cpp
index 87bcfe9127..6ace744fc3 100644
--- a/lib/Sema/SemaDecl.cpp
+++ b/lib/Sema/SemaDecl.cpp
@@ -9045,6 +9045,8 @@ Decl *Sema::ActOnIvar(Scope *S,
                                         : ObjCIvarDecl::None;
   // Must set ivar's DeclContext to its enclosing interface.
   ObjCContainerDecl *EnclosingDecl = cast<ObjCContainerDecl>(CurContext);
+  if (!EnclosingDecl || EnclosingDecl->isInvalidDecl())
+    return 0;
   ObjCContainerDecl *EnclosingContext;
   if (ObjCImplementationDecl *IMPDecl =
       dyn_cast<ObjCImplementationDecl>(EnclosingDecl)) {
diff --git a/test/SemaObjC/continuation-class-err.m b/test/SemaObjC/continuation-class-err.m
index 700cf61eed..ad8b90955f 100644
--- a/test/SemaObjC/continuation-class-err.m
+++ b/test/SemaObjC/continuation-class-err.m
@@ -40,3 +40,12 @@
 @synthesize fee = _fee;
 @end
 
+// rdar://10752081
+@interface MyOtherClass() // expected-error {{cannot find interface declaration for 'MyOtherClass'}}
+{
+ id array;
+}
+@end
+
+@implementation MyOtherClass // expected-warning {{cannot find interface declaration for 'MyOtherClass'}}
+@end