Adjust darwin build configuration to new project structure.

platform-darwin/External/iOS/Fabric.framework/Headers/FABAttributes.h

@@ -0,0 +1,60 @@
+//
+//  FABAttributes.h
+//  Fabric
+//
+//  Copyright (C) 2015 Twitter, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#pragma once
+
+#define FAB_UNAVAILABLE(x) __attribute__((unavailable(x)))
+
+#if __has_feature(nullability)
+    #define fab_nullable           nullable
+    #define fab_nonnull            nonnull
+    #define fab_null_unspecified   null_unspecified
+    #define fab_null_resettable    null_resettable
+    #define __fab_nullable         __nullable
+    #define __fab_nonnull          __nonnull
+    #define __fab_null_unspecified __null_unspecified
+#else
+    #define fab_nullable
+    #define fab_nonnull
+    #define fab_null_unspecified
+    #define fab_null_resettable
+    #define __fab_nullable
+    #define __fab_nonnull
+    #define __fab_null_unspecified
+#endif
+
+#ifndef NS_ASSUME_NONNULL_BEGIN
+    #define NS_ASSUME_NONNULL_BEGIN
+#endif
+
+#ifndef NS_ASSUME_NONNULL_END
+    #define NS_ASSUME_NONNULL_END
+#endif
+
+
+/**
+ * The following macros are defined here to provide
+ * backwards compatability. If you are still using
+ * them you should migrate to the new versions that
+ * are defined above.
+ */
+#define FAB_NONNULL       __fab_nonnull
+#define FAB_NULLABLE      __fab_nullable
+#define FAB_START_NONNULL NS_ASSUME_NONNULL_BEGIN
+#define FAB_END_NONNULL   NS_ASSUME_NONNULL_END