[DEPRECATE] Deprecate Ember.Binding

packages/ember-glimmer/tests/integration/binding_integration_test.js

@@ -18,12 +18,17 @@ moduleFor('Binding integration tests', class extends RenderingTest {
       template: 'two way: {{twoWayTest}}, string: {{stringTest}}, object: {{twoWayObjectTest}}, string object: {{stringObjectTest}}'
     });
 
-    this.render('{{foo-bar direction=direction displacement=displacement}}', {
-      direction: 'down',
-      displacement: {
-        distance: 10
-      }
-    });
+    let deprecationMessage = '`Ember.Binding` is deprecated. Consider' +
+      ' using an `alias` computed property instead.';
+
+    expectDeprecation(() => {
+      this.render('{{foo-bar direction=direction displacement=displacement}}', {
+        direction: 'down',
+        displacement: {
+          distance: 10
+        }
+      });
+    }, deprecationMessage);
 
     this.assertText('two way: down, string: down, object: 10, string object: 10');
 

packages/ember-glimmer/tests/integration/helpers/unbound-test.js

@@ -252,10 +252,10 @@ moduleFor('Helpers test: {{unbound}}', class extends RenderingTest {
 
     this.render(`{{unbound (repeat foo count=bar)}} {{repeat foo count=bar}} {{unbound (repeat foo count=2)}} {{repeat foo count=4}}`, {
       foo: 'X',
-      numRepeatsBinding: 'bar',
       bar: 5
     });
 
+
     this.assertText('XXXXX XXXXX XX XXXX');
 
     this.runTask(() => this.rerender());

packages/ember-metal/lib/binding.js

@@ -1,7 +1,7 @@
 import Logger from 'ember-console';
 import { context, ENV } from 'ember-environment';
 import run from 'ember-metal/run_loop';
-import { assert } from 'ember-metal/debug';
+import { assert, deprecate } from 'ember-metal/debug';
 import { get } from 'ember-metal/property_get';
 import { trySet } from 'ember-metal/property_set';
 import { guidFor } from 'ember-metal/utils';
@@ -43,6 +43,7 @@ function Binding(toPath, fromPath) {
 /**
   @class Binding
   @namespace Ember
+  @deprecated See http://emberjs.com/deprecations/v2.x#toc_ember-binding
   @public
 */
 
@@ -144,13 +145,13 @@ Binding.prototype = {
   connect(obj) {
     assert('Must pass a valid object to Ember.Binding.connect()', !!obj);
 
-    let fromObj, fromPath;
+    let fromObj, fromPath, possibleGlobal;
 
     // If the binding's "from" path could be interpreted as a global, verify
     // whether the path refers to a global or not by consulting `Ember.lookup`.
     if (isGlobalPath(this._from)) {
       let name = getFirstKey(this._from);
-      let possibleGlobal = context.lookup[name];
+      possibleGlobal = context.lookup[name];
 
       if (possibleGlobal) {
         fromObj = possibleGlobal;
@@ -175,6 +176,10 @@ Binding.prototype = {
 
     addListener(obj, 'willDestroy', this, 'disconnect');
 
+    fireDeprecations(possibleGlobal,
+                     this._oneWay,
+                     (!possibleGlobal && !this._oneWay));
+
     this._readyToSync = true;
     this._fromObj = fromObj;
     this._fromPath = fromPath;
@@ -281,6 +286,32 @@ Binding.prototype = {
 
 };
 
+function fireDeprecations(deprecateGlobal, deprecateOneWay, deprecateAlias) {
+  let deprecateGlobalMessage = '`Ember.Binding` is deprecated. Since you' +
+    ' are binding to a global consider using a service instead.';
+  let deprecateOneWayMessage = '`Ember.Binding` is deprecated. Since you' +
+    ' are using a `oneWay` binding consider using a `readOnly` computed' +
+    ' property instead.';
+  let deprecateAliasMessage = '`Ember.Binding` is deprecated. Consider' +
+    ' using an `alias` computed property instead.';
+
+  deprecate(deprecateGlobalMessage, !deprecateGlobal, {
+    id: 'ember-metal.binding',
+    until: '3.0.0',
+    url: 'http://emberjs.com/deprecations/v2.x#toc_ember-binding'
+  });
+  deprecate(deprecateOneWayMessage, !deprecateOneWay, {
+    id: 'ember-metal.binding',
+    until: '3.0.0',
+    url: 'http://emberjs.com/deprecations/v2.x#toc_ember-binding'
+  });
+  deprecate(deprecateAliasMessage, !deprecateAlias, {
+    id: 'ember-metal.binding',
+    until: '3.0.0',
+    url: 'http://emberjs.com/deprecations/v2.x#toc_ember-binding'
+  });
+}
+
 function mixinProperties(to, from) {
   for (var key in from) {
     if (from.hasOwnProperty(key)) {

packages/ember-metal/tests/binding/connect_test.js

@@ -54,7 +54,26 @@ testBoth('Connecting a binding between two properties', function(get, set) {
   // a.bar -> a.foo
   var binding = new Binding('foo', 'bar');
 
-  performTest(binding, a, a, get, set);
+  let deprecationMessage = '`Ember.Binding` is deprecated. Consider using an' +
+    ' `alias` computed property instead.';
+
+  expectDeprecation(() => {
+    performTest(binding, a, a, get, set);
+  }, deprecationMessage);
+});
+
+testBoth('Connecting a oneWay binding raises a deprecation',
+  function(get, set) {
+  var a = { foo: 'FOO', bar: 'BAR' };
+
+  // a.bar -> a.foo
+  var binding = new Binding('foo', 'bar').oneWay();
+
+  let deprecationMessage = '`Ember.Binding` is deprecated. Since you' +
+    ' are using a `oneWay` binding consider using a `readOnly` computed' +
+    ' property instead.';
+
+  expectDeprecation(() => { binding.connect(a); }, deprecationMessage);
 });
 
 testBoth('Connecting a binding between two objects', function(get, set) {
@@ -64,7 +83,12 @@ testBoth('Connecting a binding between two objects', function(get, set) {
   // b.bar -> a.foo
   var binding = new Binding('foo', 'b.bar');
 
-  performTest(binding, a, b, get, set);
+  let deprecationMessage = '`Ember.Binding` is deprecated. Consider using an' +
+    ' `alias` computed property instead.';
+
+  expectDeprecation(() => {
+    performTest(binding, a, b, get, set);
+  }, deprecationMessage);
 });
 
 testBoth('Connecting a binding to path', function(get, set) {
@@ -78,7 +102,12 @@ testBoth('Connecting a binding to path', function(get, set) {
   // globalB.b.bar -> a.foo
   var binding = new Binding('foo', 'GlobalB.b.bar');
 
-  performTest(binding, a, b, get, set);
+  let deprecationMessage = '`Ember.Binding` is deprecated. Since you' +
+    ' are binding to a global consider using a service instead.';
+
+  expectDeprecation(() => {
+    performTest(binding, a, b, get, set);
+  }, deprecationMessage);
 
   // make sure modifications update
   b = { bar: 'BIFF' };
@@ -97,11 +126,15 @@ testBoth('Calling connect more than once', function(get, set) {
   // b.bar -> a.foo
   var binding = new Binding('foo', 'b.bar');
 
-  performTest(binding, a, b, get, set, function () {
-    binding.connect(a);
+  let deprecationMessage = '`Ember.Binding` is deprecated. Consider using an' +
+    ' `alias` computed property instead.';
 
-    binding.connect(a);
-  });
+  expectDeprecation(() => {
+    performTest(binding, a, b, get, set, function () {
+      binding.connect(a);
+      binding.connect(a);
+    });
+  }, deprecationMessage);
 });
 
 QUnit.test('inherited bindings should sync on create', function() {
@@ -111,10 +144,13 @@ QUnit.test('inherited bindings should sync on create', function() {
       bind(this, 'foo', 'bar.baz');
     };
 
-    a = new A();
+    let deprecationMessage = '`Ember.Binding` is deprecated. Consider using an' +
+      ' `alias` computed property instead.';
+
+    expectDeprecation(() => { a = new A(); }, deprecationMessage);
+
     set(a, 'bar', { baz: 'BAZ' });
   });
 
   equal(get(a, 'foo'), 'BAZ', 'should have synced binding on new obj');
 });
-

packages/ember-metal/tests/binding/sync_test.js

@@ -35,7 +35,13 @@ testBoth('bindings should not sync twice in a single run loop', function(get, se
     b = {
       a: a
     };
-    bind(b, 'foo', 'a.foo');
+
+    let deprecationMessage = '`Ember.Binding` is deprecated. Consider' +
+      ' using an `alias` computed property instead.';
+
+    expectDeprecation(() => {
+      bind(b, 'foo', 'a.foo');
+    }, deprecationMessage);
   });
 
   // reset after initial binding synchronization
@@ -68,7 +74,13 @@ testBoth('bindings should not infinite loop if computed properties return object
     b = {
       a: a
     };
-    bind(b, 'foo', 'a.foo');
+
+    let deprecationMessage = '`Ember.Binding` is deprecated. Consider' +
+      ' using an `alias` computed property instead.';
+
+    expectDeprecation(() => {
+      bind(b, 'foo', 'a.foo');
+    }, deprecationMessage);
   });
 
   deepEqual(get(b, 'foo'), ['foo', 'bar'], 'the binding should sync');
@@ -86,12 +98,21 @@ testBoth('bindings should do the right thing when observers trigger bindings in
     b = {
       a: a
     };
-    bind(b, 'foo', 'a.foo');
+
+    let deprecationMessage = '`Ember.Binding` is deprecated. Consider' +
+      ' using an `alias` computed property instead.';
+
+    expectDeprecation(() => {
+      bind(b, 'foo', 'a.foo');
+    }, deprecationMessage);
 
     c = {
       a: a
     };
-    bind(c, 'foo', 'a.foo');
+
+    expectDeprecation(() => {
+      bind(c, 'foo', 'a.foo');
+    }, deprecationMessage);
   });
 
   addObserver(b, 'foo', function() {
@@ -116,7 +137,13 @@ testBoth('bindings should not try to sync destroyed objects', function(get, set)
     b = {
       a: a
     };
-    bind(b, 'foo', 'a.foo');
+
+    let deprecationMessage = '`Ember.Binding` is deprecated. Consider' +
+      ' using an `alias` computed property instead.';
+
+    expectDeprecation(() => {
+      bind(b, 'foo', 'a.foo');
+    }, deprecationMessage);
   });
 
   run(function() {
@@ -133,7 +160,13 @@ testBoth('bindings should not try to sync destroyed objects', function(get, set)
     b = {
       a: a
     };
-    bind(b, 'foo', 'a.foo');
+
+    let deprecationMessage = '`Ember.Binding` is deprecated. Consider' +
+      ' using an `alias` computed property instead.';
+
+    expectDeprecation(() => {
+      bind(b, 'foo', 'a.foo');
+    }, deprecationMessage);
   });
 
   run(function() {

packages/ember-runtime/tests/ext/mixin_test.js

@@ -14,7 +14,12 @@ QUnit.test('Defining a property ending in Binding should setup binding when appl
   var obj = { bar: { baz: 'BIFF' } };
 
   run(function() {
-    MyMixin.apply(obj);
+    let deprecationMessage = '`Ember.Binding` is deprecated. Consider' +
+      ' using an `alias` computed property instead.';
+
+    expectDeprecation(() => {
+      MyMixin.apply(obj);
+    }, deprecationMessage);
   });
 
   ok(get(obj, 'fooBinding') instanceof Binding, 'should be a binding object');
@@ -33,7 +38,12 @@ QUnit.test('Defining a property ending in Binding should apply to prototype chil
   obj = { bar: { baz: 'BIFF' } };
 
   run(function() {
-    MyMixin.apply(obj);
+    let deprecationMessage = '`Ember.Binding` is deprecated. Consider' +
+      ' using an `alias` computed property instead.';
+
+    expectDeprecation(() => {
+      MyMixin.apply(obj);
+    }, deprecationMessage);
   });
 
 

packages/ember-runtime/tests/legacy_1x/mixins/observable/observable_test.js

@@ -528,9 +528,14 @@ QUnit.test('nested dependent keys should propagate after they update', function(
       })
     });
 
-    bindObj = ObservableObject.extend({
-      priceBinding: 'DepObj.price'
-    }).create();
+    let deprecationMessage = '`Ember.Binding` is deprecated. Since you' +
+      ' are binding to a global consider using a service instead.';
+
+    expectDeprecation(() => {
+      bindObj = ObservableObject.extend({
+        priceBinding: 'DepObj.price'
+      }).create();
+    }, deprecationMessage);
   });
 
   equal(bindObj.get('price'), 5, 'precond - binding propagates');
@@ -835,7 +840,7 @@ QUnit.test('removing an observer inside of an observer shouldn’t cause any pro
 
 
 
-QUnit.module('Bind function ', {
+QUnit.module('Bind function', {
   setup() {
     objectA = ObservableObject.create({
       name: 'Sproutcore',
@@ -865,7 +870,12 @@ QUnit.module('Bind function ', {
 QUnit.test('should bind property with method parameter as undefined', function() {
   // creating binding
   run(function() {
-    objectA.bind('name', 'Namespace.objectB.normal', undefined);
+    let deprecationMessage = '`Ember.Binding` is deprecated. Since you' +
+      ' are binding to a global consider using a service instead.';
+
+    expectDeprecation(() => {
+      objectA.bind('name', 'Namespace.objectB.normal', undefined);
+    }, deprecationMessage);
   });
 
   // now make a change to see if the binding triggers.