Change NotImplementedException to UnimplementedError.

lib/html/src/dart2js_Conversions.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 
 // Conversions for IDBKey.
 //
 // Per http://www.w3.org/TR/IndexedDB/#key-construct
 //
 // "A value is said to be a valid key if it is one of the following types: Array
@@ skipping 118 matching lines @@
   containsDate(object) {
     if (_isJavaScriptDate(object)) return true;
     if (object is List) {
       for (int i = 0; i < object.length; i++) {
         if (containsDate(object[i])) return true;
       }
     }
     return false;  // number, string.
   }
   if (containsDate(nativeKey)) {
-    throw const NotImplementedException('IDBKey containing Date');
+    throw new UnimplementedError('IDBKey containing Date');
   }
   // TODO: Cache conversion somewhere?
   return nativeKey;
 }
 
 /**
  * Converts a Dart object into a valid IDBKey.
  *
  * May return the original input.  Does not mutate input.
  *
@@ skipping 60 matching lines @@
   cleanupSlots() {}  // Will be needed if we mark objects with a property.
 
   // Returns the input, or a clone of the input.
   walk(e) {
     if (e == null) return e;
     if (e is bool) return e;
     if (e is num) return e;
     if (e is String) return e;
     if (e is Date) {
       // TODO(sra).
-      throw const NotImplementedException('structured clone of Date');
+      throw new UnimplementedError('structured clone of Date');
     }
     if (e is RegExp) {
       // TODO(sra).
-      throw const NotImplementedException('structured clone of RegExp');
+      throw new UnimplementedError('structured clone of RegExp');
     }
 
     // The browser's internal structured cloning algorithm will copy certain
     // types of object, but it will copy only its own implementations and not
     // just any Dart implementations of the interface.
 
     // TODO(sra): The JavaScript objects suitable for direct cloning by the
     // structured clone algorithm could be tagged with an private interface.
 
     if (e is _FileImpl) return e;
     if (e is File) {
-      throw const NotImplementedException('structured clone of File');
+      throw new UnimplementedError('structured clone of File');
     }
 
     if (e is _BlobImpl) return e;
     if (e is Blob) {
-      throw const NotImplementedException('structured clone of Blob');
+      throw new UnimplementedError('structured clone of Blob');
     }
 
     if (e is _FileListImpl) return e;
 
     // TODO(sra): Firefox: How to convert _TypedImageData on the other end?
     if (e is _ImageDataImpl) return e;
     if (e is ImageData) {
-      throw const NotImplementedException('structured clone of ImageData');
+      throw new UnimplementedError('structured clone of ImageData');
     }
 
     if (e is _ArrayBufferImpl) return e;
     if (e is ArrayBuffer) {
-      throw const NotImplementedException('structured clone of ArrayBuffer');
+      throw new UnimplementedError('structured clone of ArrayBuffer');
     }
 
     if (e is _ArrayBufferViewImpl) return e;
     if (e is ArrayBufferView) {
-      throw const NotImplementedException('structured clone of ArrayBufferView');
+      throw new UnimplementedError('structured clone of ArrayBufferView');
     }
 
     if (e is Map) {
       var slot = findSlot(e);
       var copy = readSlot(slot);
       if (copy != null) return copy;
       copy = JS('var', '{}');
       writeSlot(slot, copy);
       e.forEach((key, value) {
           JS('void', '#[#] = #', copy, key, walk(value));
@@ skipping 51 matching lines @@
         copy = JS('List', 'new Array(#)', length);
         writeSlot(slot, copy);
       }
 
       for ( ; i < length; i++) {
         copy[i] = walk(e[i]);
       }
       return copy;
     }
 
-    throw const NotImplementedException('structured clone of other type');
+    throw new UnimplementedError('structured clone of other type');
   }
 
   var copy = walk(value);
   cleanupSlots();
   return copy;
 }
 
 /**
  * Converts a native value into a Dart object.
  *
@@ skipping 32 matching lines @@
   writeSlot(int i, x) { copies[i] = x; }
 
   walk(e) {
     if (e == null) return e;
     if (e is bool) return e;
     if (e is num) return e;
     if (e is String) return e;
 
     if (_isJavaScriptDate(e)) {
       // TODO(sra).
-      throw const NotImplementedException('structured clone of Date');
+      throw new UnimplementedError('structured clone of Date');
     }
 
     if (_isJavaScriptRegExp(e)) {
       // TODO(sra).
-      throw const NotImplementedException('structured clone of RegExp');
+      throw new UnimplementedError('structured clone of RegExp');
     }
 
     if (_isJavaScriptSimpleObject(e)) {
       // TODO(sra): If mustCopy is false, swizzle the prototype for one of a Map
       // implementation that uses the properies as storage.
       var slot = findSlot(e);
       var copy = readSlot(slot);
       if (copy != null) return copy;
       copy = {};
 
@@ skipping 31 matching lines @@
 }
 
 
 bool _isJavaScriptDate(value) => JS('bool', '# instanceof Date', value);
 bool _isJavaScriptRegExp(value) => JS('bool', '# instanceof RegExp', value);
 bool _isJavaScriptArray(value) => JS('bool', '# instanceof Array', value);
 bool _isJavaScriptSimpleObject(value) =>
     JS('bool', 'Object.getPrototypeOf(#) === Object.prototype', value);
 bool _isImmutableJavaScriptArray(value) =>
     JS('bool', r'!!(#.immutable$list)', value);