Index: pkg/polymer/lib/src/transform/code_extractor.dart |
diff --git a/pkg/polymer/lib/src/transform/code_extractor.dart b/pkg/polymer/lib/src/transform/code_extractor.dart |
deleted file mode 100644 |
index 580f5ac141e923cc8a5da1390bcc0a6cceaa5050..0000000000000000000000000000000000000000 |
--- a/pkg/polymer/lib/src/transform/code_extractor.dart |
+++ /dev/null |
@@ -1,83 +0,0 @@ |
-// Copyright (c) 2013, 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. |
- |
-/** Transfomer that extracts inlined script code into separate assets. */ |
-library polymer.src.transformers; |
- |
-import 'dart:async'; |
- |
-import 'package:analyzer_experimental/src/generated/ast.dart'; |
-import 'package:analyzer_experimental/src/generated/error.dart'; |
-import 'package:analyzer_experimental/src/generated/parser.dart'; |
-import 'package:analyzer_experimental/src/generated/scanner.dart'; |
-import 'package:barback/barback.dart'; |
-import 'package:path/path.dart' as path; |
- |
-import 'common.dart'; |
- |
-/** |
- * Transformer that extracts Dart code inlined in HTML script tags and outputs a |
- * separate file for each. |
- */ |
-class InlineCodeExtractor extends Transformer with PolymerTransformer { |
- final TransformOptions options; |
- |
- InlineCodeExtractor(this.options); |
- |
- /** Only run this transformer on .html files. */ |
- final String allowedExtensions = ".html"; |
- |
- Future apply(Transform transform) { |
- var input = transform.primaryInput; |
- var id = transform.primaryInput.id; |
- return readPrimaryAsHtml(transform).then((document) { |
- int count = 0; |
- bool htmlChanged = false; |
- for (var tag in document.queryAll('script')) { |
- // Only process tags that have inline Dart code |
- if (tag.attributes['type'] != 'application/dart' || |
- tag.attributes.containsKey('src')) { |
- continue; |
- } |
- htmlChanged = true; |
- |
- // Remove empty tags |
- if (tag.nodes.length == 0) { |
- tag.remove(); |
- continue; |
- } |
- |
- var filename = path.url.basename(id.path); |
- // TODO(sigmund): ensure this filename is unique (dartbug.com/12618). |
- tag.attributes['src'] = '$filename.$count.dart'; |
- var textContent = tag.nodes.first; |
- var code = textContent.value; |
- var newId = id.addExtension('.$count.dart'); |
- if (!_hasLibraryDirective(code)) { |
- var libname = path.withoutExtension(newId.path) |
- .replaceAll(new RegExp('[-./]'), '_'); |
- code = "library $libname;\n$code"; |
- } |
- transform.addOutput(new Asset.fromString(newId, code)); |
- textContent.remove(); |
- count++; |
- } |
- transform.addOutput( |
- htmlChanged ? new Asset.fromString(id, document.outerHtml) : input); |
- }); |
- } |
-} |
- |
-/** Parse [code] and determine whether it has a library directive. */ |
-bool _hasLibraryDirective(String code) { |
- var errorListener = new _ErrorCollector(); |
- var token = new StringScanner(null, code, errorListener).tokenize(); |
- var unit = new Parser(null, errorListener).parseCompilationUnit(token); |
- return unit.directives.any((d) => d is LibraryDirective); |
-} |
- |
-class _ErrorCollector extends AnalysisErrorListener { |
- final errors = <AnalysisError>[]; |
- onError(error) => errors.add(error); |
-} |