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 87bcfe9..6ace744 100644
--- a/lib/Sema/SemaDecl.cpp
+++ b/lib/Sema/SemaDecl.cpp
@@ -9045,6 +9045,8 @@
: 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 700cf61..ad8b909 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
