[PATCH] D56816: [ObjC] Follow-up r350768 and allow the use of unavailable methods that are declared in a parent class from within the @implementation context

[Alex Lorenz via Phabricator via cfe-commits]

arphaman updated this revision to Diff 182191.
arphaman added a comment.

Follow Erik's suggestion and don't check for definition/declaration in parent 
class.


Repository:
  rC Clang

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D56816/new/

https://reviews.llvm.org/D56816

Files:
  lib/Sema/SemaDeclAttr.cpp
  test/SemaObjC/call-unavailable-init-in-self.m


Index: test/SemaObjC/call-unavailable-init-in-self.m
===================================================================
--- test/SemaObjC/call-unavailable-init-in-self.m
+++ test/SemaObjC/call-unavailable-init-in-self.m
@@ -5,13 +5,24 @@
 + (instancetype)new;
 + (instancetype)alloc;
 
+- (void)declaredInSuper;
+
+@end
+
+@interface NSObject (Category)
+
+- (void)declaredInSuperCategory;
+
 @end
 
 @interface Sub: NSObject
 
 - (instancetype)init __attribute__((unavailable)); // expected-note 4 {{'init' 
has been explicitly marked unavailable here}}
 
-- (void)notImplemented __attribute__((unavailable)); // expected-note 
{{'notImplemented' has been explicitly marked unavailable here}}
+- (void)notImplemented __attribute__((unavailable));
+
+- (void)declaredInSuper __attribute__((unavailable));
+- (void)declaredInSuperCategory __attribute__((unavailable));
 
 @end
 
@@ -34,7 +45,14 @@
 }
 
 - (void)reportUseOfUnimplemented {
-  [self notImplemented]; // expected-error {{'notImplemented' is unavailable}}
+  [self notImplemented];
+}
+
+- (void)allowSuperCallUsingSelf {
+  [self declaredInSuper];
+  [[Sub alloc] declaredInSuper];
+  [self declaredInSuperCategory];
+  [[Sub alloc] declaredInSuperCategory];
 }
 
 @end
Index: lib/Sema/SemaDeclAttr.cpp
===================================================================
--- lib/Sema/SemaDeclAttr.cpp
+++ lib/Sema/SemaDeclAttr.cpp
@@ -7370,8 +7370,7 @@
       // form of access control.
       if (const auto *MD = dyn_cast<ObjCMethodDecl>(OffendingDecl)) {
         if (const auto *Impl = dyn_cast<ObjCImplDecl>(C)) {
-          if (MD->getClassInterface() == Impl->getClassInterface() &&
-              MD->isDefined())
+          if (MD->getClassInterface() == Impl->getClassInterface())
             return true;
         }
       }



Index: test/SemaObjC/call-unavailable-init-in-self.m
===================================================================
--- test/SemaObjC/call-unavailable-init-in-self.m
+++ test/SemaObjC/call-unavailable-init-in-self.m
@@ -5,13 +5,24 @@
 + (instancetype)new;
 + (instancetype)alloc;
 
+- (void)declaredInSuper;
+
+@end
+
+@interface NSObject (Category)
+
+- (void)declaredInSuperCategory;
+
 @end
 
 @interface Sub: NSObject
 
 - (instancetype)init __attribute__((unavailable)); // expected-note 4 {{'init' has been explicitly marked unavailable here}}
 
-- (void)notImplemented __attribute__((unavailable)); // expected-note {{'notImplemented' has been explicitly marked unavailable here}}
+- (void)notImplemented __attribute__((unavailable));
+
+- (void)declaredInSuper __attribute__((unavailable));
+- (void)declaredInSuperCategory __attribute__((unavailable));
 
 @end
 
@@ -34,7 +45,14 @@
 }
 
 - (void)reportUseOfUnimplemented {
-  [self notImplemented]; // expected-error {{'notImplemented' is unavailable}}
+  [self notImplemented];
+}
+
+- (void)allowSuperCallUsingSelf {
+  [self declaredInSuper];
+  [[Sub alloc] declaredInSuper];
+  [self declaredInSuperCategory];
+  [[Sub alloc] declaredInSuperCategory];
 }
 
 @end
Index: lib/Sema/SemaDeclAttr.cpp
===================================================================
--- lib/Sema/SemaDeclAttr.cpp
+++ lib/Sema/SemaDeclAttr.cpp
@@ -7370,8 +7370,7 @@
       // form of access control.
       if (const auto *MD = dyn_cast<ObjCMethodDecl>(OffendingDecl)) {
         if (const auto *Impl = dyn_cast<ObjCImplDecl>(C)) {
-          if (MD->getClassInterface() == Impl->getClassInterface() &&
-              MD->isDefined())
+          if (MD->getClassInterface() == Impl->getClassInterface())
             return true;
         }
       }

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