From 8efaada3af4f25fe88ac673eba5af8f687592cb7 Mon Sep 17 00:00:00 2001
From: Oliver Steele <steele@osteele.com>
Date: Tue, 11 Jul 2017 11:36:51 -0400
Subject: [PATCH] Add FromDrop func

---
 drops.go | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drops.go b/drops.go
index 5f96775..6d00b68 100644
--- a/drops.go
+++ b/drops.go
@@ -4,3 +4,14 @@ package liquid
 type Drop interface {
 	ToLiquid() interface{}
 }
+
+// FromDrop returns returns object.ToLiquid() if object's type implement this function;
+// else the object itself.
+func FromDrop(object interface{}) interface{} {
+	switch object := object.(type) {
+	case Drop:
+		return object.ToLiquid()
+	default:
+		return object
+	}
+}