commit 3e80e22ef1fa782df5440a0a310176ec6aadfc83
author Arnold Schwaighofer <aschwaighofer@apple.com> Fri Aug 11 14:39:58 2017 -0700
committer GitHub <noreply@github.com> Fri Aug 11 14:39:58 2017 -0700
tree 248042d5049f30d158ab29e44f5db26375ad5f86
parent b4334bbe0064b6cd0b60c5c063471a50e4d32458
parent 2280404cb82e2d233b294fc0173796886604fb8a

Merge pull request #11437 from aschwaighofer/swift-4.0-branch-_cocoaStringSlice_fix

[4.0] Fix a memory leak in _cocoaStringSlice

stdlib/public/SwiftShims/CoreFoundationShims.h

diff --git a/stdlib/public/SwiftShims/CoreFoundationShims.h b/stdlib/public/SwiftShims/CoreFoundationShims.h
index 2e1a84a..3bb1756 100644
--- a/stdlib/public/SwiftShims/CoreFoundationShims.h
+++ b/stdlib/public/SwiftShims/CoreFoundationShims.h
@@ -69,6 +69,7 @@
     _swift_shims_CFStringRef _Nonnull theString);
 
 SWIFT_RUNTIME_STDLIB_INTERFACE
+__attribute__((ns_returns_retained))
 _swift_shims_CFStringRef _Nonnull _swift_stdlib_CFStringCreateWithSubstring(
     _swift_shims_CFAllocatorRef _Nullable alloc,
     _swift_shims_CFStringRef _Nonnull str, _swift_shims_CFRange range);