fix(change_detection): fix a memory leak

vsavkin · alexeagle · commit 128acbb6ebd8 · 2016-03-09T16:24:51.000-08:00
diff --git a/modules/angular2/src/core/change_detection/change_detection_util.ts b/modules/angular2/src/core/change_detection/change_detection_util.ts
@@ -73,36 +73,8 @@ export class SimpleChange {
   isFirstChange(): boolean { return this.previousValue === ChangeDetectionUtil.uninitialized; }
 }
 
-var _simpleChangesIndex = 0;
-var _simpleChanges = [
-  new SimpleChange(null, null),
-  new SimpleChange(null, null),
-  new SimpleChange(null, null),
-  new SimpleChange(null, null),
-  new SimpleChange(null, null),
-  new SimpleChange(null, null),
-  new SimpleChange(null, null),
-  new SimpleChange(null, null),
-  new SimpleChange(null, null),
-  new SimpleChange(null, null),
-  new SimpleChange(null, null),
-  new SimpleChange(null, null),
-  new SimpleChange(null, null),
-  new SimpleChange(null, null),
-  new SimpleChange(null, null),
-  new SimpleChange(null, null),
-  new SimpleChange(null, null),
-  new SimpleChange(null, null),
-  new SimpleChange(null, null),
-  new SimpleChange(null, null)
-];
-
 function _simpleChange(previousValue, currentValue): SimpleChange {
-  var index = _simpleChangesIndex++ % 20;
-  var s = _simpleChanges[index];
-  s.previousValue = previousValue;
-  s.currentValue = currentValue;
-  return s;
+  return new SimpleChange(previousValue, currentValue);
 }
 
 /* tslint:disable:requireParameterType */
