Index: third_party/polymer/components/web-animations-js/src/deprecation.js |
diff --git a/third_party/polymer/components/web-animations-js/src/deprecation.js b/third_party/polymer/components/web-animations-js/src/deprecation.js |
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index 0000000000000000000000000000000000000000..6bdb4a2223c0aa67f7db00f9dace4765ab144b39 |
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+++ b/third_party/polymer/components/web-animations-js/src/deprecation.js |
@@ -0,0 +1,47 @@ |
+// Copyright 2014 Google Inc. All rights reserved. |
+// |
+// Licensed under the Apache License, Version 2.0 (the "License"); |
+// you may not use this file except in compliance with the License. |
+// You may obtain a copy of the License at |
+// |
+// http://www.apache.org/licenses/LICENSE-2.0 |
+// |
+// Unless required by applicable law or agreed to in writing, software |
+// distributed under the License is distributed on an "AS IS" BASIS, |
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
+// See the License for the specific language governing permissions and |
+// limitations under the License. |
+ |
+(function(shared) { |
+ |
+ var silenced = {}; |
+ |
+ shared.isDeprecated = function(feature, date, advice, plural) { |
+ if (WEB_ANIMATIONS_TESTING) { |
+ return true; |
+ } |
+ |
+ var auxVerb = plural ? 'are' : 'is'; |
+ var today = new Date(); |
+ var expiry = new Date(date); |
+ expiry.setMonth(expiry.getMonth() + 3); // 3 months grace period |
+ |
+ if (today < expiry) { |
+ if (!(feature in silenced)) { |
+ console.warn('Web Animations: ' + feature + ' ' + auxVerb + ' deprecated and will stop working on ' + expiry.toDateString() + '. ' + advice); |
+ } |
+ silenced[feature] = true; |
+ return false; |
+ } else { |
+ return true; |
+ } |
+ }; |
+ |
+ shared.deprecated = function(feature, date, advice, plural) { |
+ var auxVerb = plural ? 'are' : 'is'; |
+ if (shared.isDeprecated(feature, date, advice, plural)) { |
+ throw new Error(feature + ' ' + auxVerb + ' no longer supported. ' + advice); |
+ } |
+ }; |
+ |
+})(webAnimationsShared); |