Version 0.3.7.4

dart/sdk/lib/_internal/compiler/implementation/lib/string_helper.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.
 
 part of _js_helper;
 
 class StringMatch implements Match {
   const StringMatch(int this.start,
                     String this.str,
                     String this.pattern);
@@ skipping 184 matching lines @@
   } else {
     checkNull(from);
     // TODO(floitsch): implement generic String.replace (with patterns).
     throw "String.replace(Pattern) UNIMPLEMENTED";
   }
 }
 
 stringJoinUnchecked(array, separator) {
   return JS('String', r'#.join(#)', array, separator);
 }
-
-class JsStringBuffer implements StringBuffer {
-  String _contents;
-
-  JsStringBuffer(content)
-      : _contents = (content is String) ? content : '$content';
-
-  int get length => _contents.length;
-
-  bool get isEmpty => length == 0;
-
-  void add(Object obj) {
-    _contents = JS('String', '# + #', _contents,
-                   (obj is String) ? obj : '$obj');
-  }
-
-  void addAll(Iterable objects) {
-    for (Object obj in objects) add(obj);
-  }
-
-  void addCharCode(int charCode) {
-    add(new String.fromCharCodes([charCode]));
-  }
-
-  void clear() {
-    _contents = "";
-  }
-
-  String toString() => _contents;
-}