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| 1 // Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file | |
| 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. | |
| 4 | |
| 5 // Helpers for writing compiler tests running in browser. | |
| 6 library trydart.web_compiler_test_case; | |
| 7 | |
| 8 import 'dart:async' show | |
| 9 EventSink, | |
| 10 Future; | |
| 11 | |
| 12 import 'dart:html' show | |
| 13 HttpRequest; | |
| 14 | |
| 15 import '../poi/compiler_test_case.dart' show | |
| 16 customUri, | |
| 17 CompilerTestCase; | |
| 18 | |
| 19 import 'package:dart2js_incremental/dart2js_incremental.dart' show | |
| 20 IncrementalCompiler, OutputProvider; | |
| 21 | |
| 22 import 'package:compiler/compiler.dart' show | |
| 23 Diagnostic; | |
| 24 | |
| 25 const String WEB_SCHEME = 'org.trydart.web'; | |
| 26 | |
| 27 /// A CompilerTestCase which runs in a browser. | |
| 28 class WebCompilerTestCase extends CompilerTestCase { | |
| 29 final IncrementalCompiler incrementalCompiler; | |
| 30 | |
| 31 WebCompilerTestCase.init(/* Map or String */ source, Uri uri) | |
| 32 : this.incrementalCompiler = makeCompiler(source, uri), | |
| 33 super.init(null, uri, null); | |
| 34 | |
| 35 WebCompilerTestCase(/* Map or String */ source, [String path]) | |
| 36 : this.init(source, customUri(path == null ? 'main.dart' : path)); | |
| 37 | |
| 38 Future run() { | |
| 39 return incrementalCompiler.compile(scriptUri).then((success) { | |
| 40 if (!success) throw 'Compilation failed'; | |
| 41 OutputProvider outputProvider = incrementalCompiler.outputProvider; | |
| 42 return outputProvider['.js']; | |
| 43 }); | |
| 44 } | |
| 45 | |
| 46 static IncrementalCompiler makeCompiler( | |
| 47 /* Map or String */ source, | |
| 48 Uri mainUri) { | |
| 49 Uri libraryRoot = new Uri(scheme: WEB_SCHEME, path: '/sdk/'); | |
| 50 Uri packageRoot = new Uri(scheme: WEB_SCHEME, path: '/packages/'); | |
| 51 | |
| 52 Map<Uri, String> sources = <Uri, String>{}; | |
| 53 if (source is String) { | |
| 54 sources[mainUri] = source; | |
| 55 } else if (source is Map) { | |
| 56 source.forEach((String name, String code) { | |
| 57 sources[mainUri.resolve(name)] = code; | |
| 58 }); | |
| 59 } else { | |
| 60 throw new ArgumentError("[source] should be a String or a Map"); | |
| 61 } | |
| 62 | |
| 63 WebInputProvider inputProvider = | |
| 64 new WebInputProvider(sources, libraryRoot, packageRoot); | |
| 65 | |
| 66 void diagnosticHandler( | |
| 67 Uri uri, int begin, int end, String message, Diagnostic kind) { | |
| 68 if (uri == null) { | |
| 69 print('[$kind] $message'); | |
| 70 } else { | |
| 71 print('$uri@$begin+${end - begin}: [$kind] $message'); | |
| 72 } | |
| 73 } | |
| 74 | |
| 75 return new IncrementalCompiler( | |
| 76 libraryRoot: libraryRoot, | |
| 77 packageRoot: packageRoot, | |
| 78 inputProvider: inputProvider, | |
| 79 diagnosticHandler: diagnosticHandler, | |
| 80 outputProvider: new OutputProvider()); | |
| 81 } | |
| 82 } | |
| 83 | |
| 84 /// An input provider which provides input via [HttpRequest]. | |
| 85 /// Includes one in-memory compilation unit [source] which is returned when | |
| 86 /// [mainUri] is requested. | |
| 87 class WebInputProvider { | |
| 88 final Map<Uri, String> sources; | |
| 89 | |
| 90 final Uri libraryRoot; | |
| 91 | |
| 92 final Uri packageRoot; | |
| 93 | |
| 94 final Map<Uri, Future> cachedSources = new Map<Uri, Future>(); | |
| 95 | |
| 96 static final Map<String, Future> cachedRequests = new Map<String, Future>(); | |
| 97 | |
| 98 WebInputProvider(this.sources, this.libraryRoot, this.packageRoot); | |
| 99 | |
| 100 Future call(Uri uri) { | |
| 101 return cachedSources.putIfAbsent(uri, () { | |
| 102 if (sources.containsKey(uri)) return new Future.value(sources[uri]); | |
| 103 if (uri.scheme == WEB_SCHEME) { | |
| 104 return cachedHttpRequest('/root_dart${uri.path}'); | |
| 105 } else { | |
| 106 return cachedHttpRequest('$uri'); | |
| 107 } | |
| 108 }); | |
| 109 } | |
| 110 | |
| 111 static Future cachedHttpRequest(String uri) { | |
| 112 return cachedRequests.putIfAbsent(uri, () => HttpRequest.getString(uri)); | |
| 113 } | |
| 114 } | |
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