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1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 /** Transfomer that combines multiple dart script tags into a single one. */ | 5 /** Transfomer that combines multiple dart script tags into a single one. */ |
6 library polymer.src.build.script_compactor; | 6 library polymer.src.build.script_compactor; |
7 | 7 |
8 import 'dart:async'; | 8 import 'dart:async'; |
9 import 'dart:convert'; | 9 import 'dart:convert'; |
10 | 10 |
11 import 'package:analyzer/src/generated/ast.dart'; | 11 import 'package:analyzer/src/generated/ast.dart'; |
12 import 'package:analyzer/src/generated/error.dart'; | 12 import 'package:analyzer/src/generated/error.dart'; |
13 import 'package:analyzer/src/generated/parser.dart'; | 13 import 'package:analyzer/src/generated/parser.dart'; |
14 import 'package:analyzer/src/generated/scanner.dart'; | 14 import 'package:analyzer/src/generated/scanner.dart'; |
15 import 'package:barback/barback.dart'; | 15 import 'package:barback/barback.dart'; |
16 import 'package:html5lib/parser.dart' show parseFragment; | |
17 import 'package:path/path.dart' as path; | 16 import 'package:path/path.dart' as path; |
18 import 'package:source_maps/span.dart' show SourceFile; | 17 import 'package:source_maps/span.dart' show SourceFile; |
19 | 18 |
20 import 'code_extractor.dart'; // import just for documentation. | 19 import 'code_extractor.dart'; // import just for documentation. |
21 import 'common.dart'; | 20 import 'common.dart'; |
22 | 21 |
23 /** | 22 /** |
24 * Combines Dart script tags into a single script tag, and creates a new Dart | 23 * Combines Dart script tags into a single script tag, and creates a new Dart |
25 * file that calls the main function of each of the original script tags. | 24 * file that calls the main function of each of the original script tags. |
26 * | 25 * |
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46 var secondaryId = id.addExtension('.scriptUrls'); | 45 var secondaryId = id.addExtension('.scriptUrls'); |
47 var logger = transform.logger; | 46 var logger = transform.logger; |
48 return readPrimaryAsHtml(transform).then((document) { | 47 return readPrimaryAsHtml(transform).then((document) { |
49 return transform.readInputAsString(secondaryId).then((libraryIds) { | 48 return transform.readInputAsString(secondaryId).then((libraryIds) { |
50 var libraries = (JSON.decode(libraryIds) as Iterable).map( | 49 var libraries = (JSON.decode(libraryIds) as Iterable).map( |
51 (data) => new AssetId.deserialize(data)).toList(); | 50 (data) => new AssetId.deserialize(data)).toList(); |
52 var mainLibraryId; | 51 var mainLibraryId; |
53 var mainScriptTag; | 52 var mainScriptTag; |
54 bool changed = false; | 53 bool changed = false; |
55 | 54 |
56 for (var tag in document.queryAll('script')) { | 55 for (var tag in document.querySelectorAll('script')) { |
57 var src = tag.attributes['src']; | 56 var src = tag.attributes['src']; |
58 if (src == 'packages/polymer/boot.js') { | 57 if (src == 'packages/polymer/boot.js') { |
59 tag.remove(); | 58 tag.remove(); |
60 continue; | 59 continue; |
61 } | 60 } |
62 if (tag.attributes['type'] != 'application/dart') continue; | 61 if (tag.attributes['type'] != 'application/dart') continue; |
63 if (src == null) { | 62 if (src == null) { |
64 logger.warning('unexpected script without a src url. The ' | 63 logger.warning('unexpected script without a src url. The ' |
65 'ScriptCompactor transformer should run after running the ' | 64 'ScriptCompactor transformer should run after running the ' |
66 'InlineCodeExtractor', span: tag.sourceSpan); | 65 'InlineCodeExtractor', span: tag.sourceSpan); |
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277 "() => Polymer.register('$tagName', $prefix.$typeName)"; | 276 "() => Polymer.register('$tagName', $prefix.$typeName)"; |
278 } | 277 } |
279 | 278 |
280 _getSpan(SourceFile file, ASTNode node) => file.span(node.offset, node.end); | 279 _getSpan(SourceFile file, ASTNode node) => file.span(node.offset, node.end); |
281 | 280 |
282 const MAIN_HEADER = """ | 281 const MAIN_HEADER = """ |
283 library app_bootstrap; | 282 library app_bootstrap; |
284 | 283 |
285 import 'package:polymer/polymer.dart'; | 284 import 'package:polymer/polymer.dart'; |
286 """; | 285 """; |
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