move polymer.dart into dart svn

pkg/polymer/lib/src/files.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.
+
+library files;
+
+import 'package:html5lib/dom.dart';
+
+/** An input file to process by the template compiler. */
+class SourceFile {
+  static const int HTML = 1;
+  static const int DART = 2;
+  static const int STYLESHEET = 3;
+
+  final String path;
+  final int type;
+
+  Document document;
+
+  /** Dart code or contents of a linked style sheet. */
+  String code;
+
+  SourceFile(this.path, {this.type: HTML});
+
+  bool get isDart => type == DART;
+  bool get isHtml => type == HTML;
+  bool get isStyleSheet => type == STYLESHEET;
+
+  String toString() => "#<SourceFile $path>";
+}
+
+/** An output file to generated by the template compiler. */
+class OutputFile {
+  final String path;
+  final String contents;
+
+  /**
+   * Path to the source file that was transformed into this OutputFile, `null`
+   * for files that are generated and do not correspond to an input
+   * [SourceFile].
+   */
+  final String source;
+
+  OutputFile(this.path, this.contents, {this.source});
+
+  String toString() => "#<OutputFile $path>";
+}