1 files changed, 27 insertions, 0 deletions
diff --git a/platform/darwin/src/CFHandle.hpp b/platform/darwin/src/CFHandle.hpp
new file mode 100644
index 0000000000..b87b8c696f
--- /dev/null
+++ b/platform/darwin/src/CFHandle.hpp
@@ -0,0 +1,27 @@
+
+namespace {
+
+template <typename T, typename S, void (*Releaser)(S)>
+struct CFHandle {
+    CFHandle(T t_): t(t_) {}
+    ~CFHandle() { Releaser(t); }
+    T operator*() { return t; }
+    operator bool() { return t; }
+private:
+    T t;
+};
+
+using CGImageHandle = CFHandle<CGImageRef, CGImageRef, CGImageRelease>;
+using CFDataHandle = CFHandle<CFDataRef, CFTypeRef, CFRelease>;
+using CGImageSourceHandle = CFHandle<CGImageSourceRef, CFTypeRef, CFRelease>;
+using CGDataProviderHandle = CFHandle<CGDataProviderRef, CGDataProviderRef, CGDataProviderRelease>;
+using CGColorSpaceHandle = CFHandle<CGColorSpaceRef, CGColorSpaceRef, CGColorSpaceRelease>;
+using CGContextHandle = CFHandle<CGContextRef, CGContextRef, CGContextRelease>;
+
+using CFStringRefHandle = CFHandle<CFStringRef, CFTypeRef, CFRelease>;
+using CFAttributedStringRefHandle = CFHandle<CFAttributedStringRef, CFTypeRef, CFRelease>;
+using CFDictionaryRefHandle = CFHandle<CFDictionaryRef, CFTypeRef, CFRelease>;
+
+
+} // namespace
+