When we insert a category (or class extension) into an interface, mark

the interface as having changed since it was originally
serialized. This ensures that we see class extensions/categories in
chained PCH files.

llvm-svn: 115421

clang/include/clang/AST/DeclObjC.h

@@ -991,6 +991,7 @@ public:
   void insertNextClassCategory() {
     NextClassCategory = ClassInterface->getCategoryList();
     ClassInterface->setCategoryList(this);
+    ClassInterface->setChangedSinceDeserialization(true);
   }
 
   bool IsClassExtension() const { return getIdentifier() == 0; }

clang/test/PCH/Inputs/chain-selectors1.h

@@ -10,3 +10,7 @@ void foo1() {
   //(void)@selector(x);
   (void)@selector(f);
 }
+
+@interface X (Blah)
+- (void)blah_method;
+@end

clang/test/PCH/Inputs/chain-selectors2.h

@@ -9,3 +9,7 @@ void foo2() {
   //(void)@selector(y);
   //(void)@selector(e);
 }
+
+@interface X (Blarg)
+- (void)blarg_method;
+@end

clang/test/PCH/chain-selectors.m

@@ -22,3 +22,19 @@ void bar() {
   (void)@selector(y); // expected-warning {{unimplemented selector}}
   (void)@selector(e); // expected-warning {{unimplemented selector}}
 }
+
+@implementation X (Blah)
+- (void)test_Blah {
+  [self blah_method];
+}
+
+- (void)blah_method { }
+@end
+
+@implementation X (Blarg)
+- (void)test_Blarg {
+  [self blarg_method];
+}
+
+- (void)blarg_method { }
+@end