Expose the initial context via @root

1 files changed, 8 insertions, 1 deletions

diff --git a/lib/handlebars/runtime.js b/lib/handlebars/runtime.js
index 5ae8d8a..d31e5f4 100644
--- a/lib/handlebars/runtime.js
+++ b/lib/handlebars/runtime.js
@@ -1,6 +1,6 @@
 module Utils from "./utils";
 import Exception from "./exception";
-import { COMPILER_REVISION, REVISION_CHANGES } from "./base";
+import { COMPILER_REVISION, REVISION_CHANGES, createFrame } from "./base";
 
 export function checkRevision(compilerInfo) {
   var compilerRevision = compilerInfo && compilerInfo[0] || 1,
@@ -56,6 +56,13 @@ export function template(templateSpec, env) {
       }
       return programWrapper;
     },
+    initData: function(context, data) {
+      data = data ? createFrame(data) : {};
+      if (!('root' in data)) {
+        data.root = context;
+      }
+      return data;
+    },
     merge: function(param, common) {
       var ret = param || common;