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1 // Copyright (c) 2012, 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 #library('frog_leg'); | |
6 | |
7 #import('dart:io'); | |
8 #import('dart:uri'); | |
9 | |
10 #import('lang.dart', prefix: 'frog'); | |
11 #import('../../compiler/compiler.dart', prefix: 'compiler'); | |
12 #import('../../compiler/implementation/filenames.dart'); | |
13 #import('../../compiler/implementation/util/uri_extras.dart'); | |
14 | |
15 bool compile(frog.World world) { | |
16 final throwOnError = frog.options.throwOnErrors; | |
17 final showWarnings = frog.options.showWarnings; | |
18 final allowMockCompilation = frog.options.allowMockCompilation; | |
19 Uri cwd = getCurrentDirectory(); | |
20 Uri uri = cwd.resolve(nativeToUriPath(frog.options.dartScript)); | |
21 String frogLibDir = nativeToUriPath(frog.options.libDir); | |
22 if (!frogLibDir.endsWith("/")) frogLibDir = "$frogLibDir/"; | |
23 Uri frogLib = new Uri(scheme: 'file', path: frogLibDir); | |
24 Uri libraryRoot = frogLib.resolve('../../'); | |
25 Map<String, frog.SourceFile> sourceFiles = <frog.SourceFile>{}; | |
26 | |
27 Future<String> provider(Uri uri) { | |
28 if (uri.scheme != 'file') { | |
29 throw new IllegalArgumentException(uri); | |
30 } | |
31 String source = world.files.readAll(uriPathToNative(uri.path)); | |
32 world.dartBytesRead += source.length; | |
33 sourceFiles[uri.toString()] = | |
34 new frog.SourceFile(relativize(cwd, uri), source); | |
35 Completer<String> completer = new Completer<String>(); | |
36 completer.complete(source); | |
37 return completer.future; | |
38 } | |
39 | |
40 void handler(Uri uri, int begin, int end, String message, bool fatal) { | |
41 if (uri === null && !fatal) { | |
42 world.info('[leg] $message'); | |
43 return; | |
44 } | |
45 if (uri === null) { | |
46 assert(fatal); | |
47 print(message); | |
48 } else if (fatal || showWarnings) { | |
49 frog.SourceFile file = sourceFiles[uri.toString()]; | |
50 print(file.getLocationMessage(message, begin, end, true)); | |
51 } | |
52 if (fatal && throwOnError) throw new AbortLeg(message); | |
53 } | |
54 | |
55 List<String> options = new List<String>(); | |
56 if (allowMockCompilation) options.add('--allow-mock-compilation'); | |
57 | |
58 // TODO(ahe): We expect the future to be complete and call value | |
59 // directly. In effect, we don't support truly asynchronous API. | |
60 String code = | |
61 compiler.compile(uri, libraryRoot, provider, handler, options).value; | |
62 if (code === null) return false; | |
63 world.legCode = code; | |
64 world.jsBytesWritten = code.length; | |
65 return true; | |
66 } | |
67 | |
68 class AbortLeg { | |
69 final message; | |
70 AbortLeg(this.message); | |
71 toString() => 'Aborted due to --throw-on-error: $message'; | |
72 } | |
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