From 47b1517c52c229f50f76b86a99904e00a77901f8 Mon Sep 17 00:00:00 2001
From: Argyrios Kyrtzidis <akyrtzi@gmail.com>
Date: Fri, 19 Jul 2013 18:57:15 +0000
Subject: [PATCH] [arcmt] After checking is successful disable auto-synthesize
 to avoid "@synthesize of 'weak' property is only allowed in ARC" errors.

rdar://14461559

llvm-svn: 186709
---
 clang/lib/ARCMigrate/ARCMT.cpp     |  3 +++
 clang/test/ARCMT/checking-in-arc.m | 47 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 50 insertions(+)
 create mode 100644 clang/test/ARCMT/checking-in-arc.m

diff --git a/clang/lib/ARCMigrate/ARCMT.cpp b/clang/lib/ARCMigrate/ARCMT.cpp
index a6d4876..8a2b939 100644
--- a/clang/lib/ARCMigrate/ARCMT.cpp
+++ b/clang/lib/ARCMigrate/ARCMT.cpp
@@ -324,6 +324,9 @@ bool arcmt::checkForManualIssues(CompilerInvocation &origCI,
   // If we are migrating code that gets the '-fobjc-arc' flag, make sure
   // to remove it so that we don't get errors from normal compilation.
   origCI.getLangOpts()->ObjCAutoRefCount = false;
+  // Disable auto-synthesize to avoid "@synthesize of 'weak' property is only
+  // allowed in ARC" errors.
+  origCI.getLangOpts()->ObjCDefaultSynthProperties = false;
 
   return capturedDiags.hasErrors() || testAct.hasReportedErrors();
 }
diff --git a/clang/test/ARCMT/checking-in-arc.m b/clang/test/ARCMT/checking-in-arc.m
new file mode 100644
index 0000000..5a1b3d3
--- /dev/null
+++ b/clang/test/ARCMT/checking-in-arc.m
@@ -0,0 +1,47 @@
+// RUN: %clang_cc1 -arcmt-check -fobjc-arc -fobjc-default-synthesize-properties -fobjc-runtime=macosx-10.8.0 -triple x86_64-apple-darwin12 -fblocks -Werror %s
+// DISABLE: mingw32
+
+#if __has_feature(objc_arc)
+#define NS_AUTOMATED_REFCOUNT_UNAVAILABLE __attribute__((unavailable("not available in automatic reference counting mode")))
+#else
+#define NS_AUTOMATED_REFCOUNT_UNAVAILABLE
+#endif
+
+typedef const void * CFTypeRef;
+CFTypeRef CFBridgingRetain(id X);
+id CFBridgingRelease(CFTypeRef);
+
+typedef int BOOL;
+typedef unsigned NSUInteger;
+
+@protocol NSObject
+- (id)retain NS_AUTOMATED_REFCOUNT_UNAVAILABLE;
+- (NSUInteger)retainCount NS_AUTOMATED_REFCOUNT_UNAVAILABLE;
+- (oneway void)release NS_AUTOMATED_REFCOUNT_UNAVAILABLE;
+- (id)autorelease NS_AUTOMATED_REFCOUNT_UNAVAILABLE;
+@end
+
+@interface NSObject <NSObject> {}
+- (id)init;
+
++ (id)new;
++ (id)alloc;
+- (void)dealloc;
+
+- (void)finalize;
+
+- (id)copy;
+- (id)mutableCopy;
+@end
+
+typedef const struct __CFString * CFStringRef;
+extern const CFStringRef kUTTypePlainText;
+extern const CFStringRef kUTTypeRTF;
+@class NSString;
+
+@interface Test : NSObject
+@property (weak) NSString *weakProperty;
+@end
+
+@implementation Test
+@end
-- 
2.7.4