1 files changed, 44 insertions, 0 deletions
diff --git a/test/SemaObjC/conditional-expr.m b/test/SemaObjC/conditional-expr.m
new file mode 100644
index 000000000000..ec3613b2aa9b
--- /dev/null
+++ b/test/SemaObjC/conditional-expr.m
@@ -0,0 +1,44 @@
+// RUN: clang-cc -fsyntax-only -verify -pedantic %s
+@protocol NSObject
+@end
+
+@protocol DTOutputStreams <NSObject>
+@end
+
+@interface DTFilterOutputStream <DTOutputStreams>
+- nextOutputStream;
+@end
+
+@implementation DTFilterOutputStream
+- (id)initWithNextOutputStream:(id <DTOutputStreams>) outputStream {
+  id <DTOutputStreams> nextOutputStream = [self nextOutputStream];
+  self = nextOutputStream;
+  return nextOutputStream ? nextOutputStream : self;
+}
+- nextOutputStream {
+  return self;
+}
+@end
+
+@interface DTFilterOutputStream2
+- nextOutputStream;
+@end
+
+@implementation DTFilterOutputStream2 // expected-warning {{incomplete implementation}} expected-warning {{method definition for 'nextOutputStream' not found}}
+- (id)initWithNextOutputStream:(id <DTOutputStreams>) outputStream {
+  id <DTOutputStreams> nextOutputStream = [self nextOutputStream];
+  // GCC warns about both of these.
+  self = nextOutputStream; // expected-warning {{incompatible type assigning 'id<DTOutputStreams>', expected 'DTFilterOutputStream2 *'}}
+  return nextOutputStream ? nextOutputStream : self;
+}
+@end
+
+// No @interface declaration for DTFilterOutputStream3
+@implementation DTFilterOutputStream3 // expected-warning {{cannot find interface declaration for 'DTFilterOutputStream3'}}
+- (id)initWithNextOutputStream:(id <DTOutputStreams>) outputStream {
+  id <DTOutputStreams> nextOutputStream = [self nextOutputStream]; // expected-warning {{method '-nextOutputStream' not found (return type defaults to 'id')}}
+  // GCC warns about both of these as well (no errors).
+  self = nextOutputStream; // expected-warning {{incompatible type assigning 'id<DTOutputStreams>', expected 'DTFilterOutputStream3 *'}}
+  return nextOutputStream ? nextOutputStream : self;
+}
+@end