From 9b491561e55e90b9b209f0f7b7aaa4de982b0721 Mon Sep 17 00:00:00 2001
From: "jian.han" <jian.han@neds.com>
Date: Thu, 11 Jan 2018 15:45:43 +1000
Subject: [PATCH] added defer nil func example

---
 defer/main.go | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100644 defer/main.go

diff --git a/defer/main.go b/defer/main.go
new file mode 100644
index 0000000..2107a62
--- /dev/null
+++ b/defer/main.go
@@ -0,0 +1,17 @@
+package main
+
+import "fmt"
+
+// Sample code is taken from online tutorial https://blog.learngoprogramming.com/gotchas-of-defer-in-go-1-8d070894cb01
+// it demostrate all the common GOTCHA when using defer.
+
+// If a deferred func evaluates to nil, execution panic when surrounding func ends not when defer is called
+func nilFuncDefer() {
+	var run func() = nil
+	defer run()
+	fmt.Println("runs")
+}
+
+func main() {
+	nilFuncDefer()
+}