From ac46df8daea09899ce30dc8fd70986e258c746bf Mon Sep 17 00:00:00 2001
From: "Matt A. Tobin" <email@mattatobin.com>
Date: Fri, 9 Feb 2018 06:46:43 -0500
Subject: Move Add-on SDK source to toolkit/jetpack

---
 toolkit/jetpack/sdk/model/core.js | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 toolkit/jetpack/sdk/model/core.js

(limited to 'toolkit/jetpack/sdk/model')

diff --git a/toolkit/jetpack/sdk/model/core.js b/toolkit/jetpack/sdk/model/core.js
new file mode 100644
index 000000000..315f8b1cd
--- /dev/null
+++ b/toolkit/jetpack/sdk/model/core.js
@@ -0,0 +1,23 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+"use strict";
+
+module.metadata = {
+  "stability": "unstable"
+};
+
+const { dispatcher } = require("../util/dispatcher");
+
+
+// Define `modelFor` accessor function that can be implemented
+// for different types of views. Since view's we'll be dealing
+// with types that don't really play well with `instanceof`
+// operator we're gonig to use `dispatcher` that is slight
+// extension over polymorphic dispatch provided by method.
+// This allows models to extend implementations of this by
+// providing predicates:
+//
+// modelFor.when($ => $ && $.nodeName === "tab", findTabById($.id))
+const modelFor = dispatcher("modelFor");
+exports.modelFor = modelFor;
-- 
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