75176: Swift 3.0: SE-0061: Add Generic Result and Error Handling to autoreleasepool()

Author: carlokok

Source/Functions.swift

@@ -180,4 +180,24 @@ public func stride(from start: Double, to end: Double, by stride: Double) -> ISe
 		__yield i;
 		i += stride
 	}
-}*/
+}*/
+
+#if TOFFEE
+
+public func autoreleasepool<T>(_ act: () throws -> (T)) -> T throws {
+  var res: T;
+  autoreleasepool {
+    res = try act();
+  }
+  return res;
+}
+
+public func autoreleasepool<T>(_ act: () -> (T)) -> T {
+  var res: T;
+  autoreleasepool {
+    res = try act();
+  }
+  return res;
+}
+
+#endif