import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

addon-sdk/source/lib/diffpatcher/patch.js

@@ -0,0 +1,21 @@
+"use strict";
+
+var method = require("../method/core")
+var rebase = require("./rebase")
+
+// Method is designed to work with data structures representing application
+// state. Calling it with a state and delta should return object representing
+// new state, with changes in `delta` being applied to previous.
+//
+// ## Example
+//
+// patch(state, {
+//   "item-id-1": { completed: false }, // update
+//   "item-id-2": null                  // delete
+// })
+var patch = method("patch@diffpatcher")
+patch.define(Object, function patch(hash, delta) {
+  return rebase({}, hash, delta)
+})
+
+module.exports = patch