| OLD | NEW |
|---|
| (Empty) |
| 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 library pub.exceptions; | |
| 6 | |
| 7 import 'dart:io'; | |
| 8 import 'dart:isolate'; | |
| 9 | |
| 10 import "package:analyzer/analyzer.dart"; | |
| 11 import 'package:args/command_runner.dart'; | |
| 12 import "package:http/http.dart" as http; | |
| 13 import "package:stack_trace/stack_trace.dart"; | |
| 14 import "package:yaml/yaml.dart"; | |
| 15 | |
| 16 import '../../asset/dart/serialize.dart'; | |
| 17 | |
| 18 /// An exception class for exceptions that are intended to be seen by the user. | |
| 19 /// | |
| 20 /// These exceptions won't have any debugging information printed when they're | |
| 21 /// thrown. | |
| 22 class ApplicationException implements Exception { | |
| 23 final String message; | |
| 24 | |
| 25 ApplicationException(this.message); | |
| 26 | |
| 27 String toString() => message; | |
| 28 } | |
| 29 | |
| 30 /// An exception class for exceptions that are intended to be seen by the user | |
| 31 /// and are associated with a problem in a file at some path. | |
| 32 class FileException implements ApplicationException { | |
| 33 final String message; | |
| 34 | |
| 35 /// The path to the file that was missing or erroneous. | |
| 36 final String path; | |
| 37 | |
| 38 FileException(this.message, this.path); | |
| 39 | |
| 40 String toString() => message; | |
| 41 } | |
| 42 | |
| 43 /// A class for exceptions that wrap other exceptions. | |
| 44 class WrappedException extends ApplicationException { | |
| 45 /// The underlying exception that [this] is wrapping, if any. | |
| 46 final innerError; | |
| 47 | |
| 48 /// The stack chain for [innerError] if it exists. | |
| 49 final Chain innerChain; | |
| 50 | |
| 51 WrappedException(String message, this.innerError, [StackTrace innerTrace]) | |
| 52 : innerChain = innerTrace == null ? null : new Chain.forTrace(innerTrace), | |
| 53 super(message); | |
| 54 } | |
| 55 | |
| 56 /// A class for exceptions that shouldn't be printed at the top level. | |
| 57 /// | |
| 58 /// This is usually used when an exception has already been printed using | |
| 59 /// [log.exception]. | |
| 60 class SilentException extends WrappedException { | |
| 61 SilentException(innerError, [StackTrace innerTrace]) | |
| 62 : super(innerError.toString(), innerError, innerTrace); | |
| 63 } | |
| 64 | |
| 65 /// A class for errors in a command's input data. | |
| 66 /// | |
| 67 /// This corresponds to the [exit_codes.DATA] exit code. | |
| 68 class DataException extends ApplicationException { | |
| 69 DataException(String message) | |
| 70 : super(message); | |
| 71 } | |
| 72 | |
| 73 /// An class for exceptions where a package could not be found in a [Source]. | |
| 74 /// | |
| 75 /// The source is responsible for wrapping its internal exceptions in this so | |
| 76 /// that other code in pub can use this to show a more detailed explanation of | |
| 77 /// why the package was being requested. | |
| 78 class PackageNotFoundException extends WrappedException { | |
| 79 PackageNotFoundException(String message, [innerError, StackTrace innerTrace]) | |
| 80 : super(message, innerError, innerTrace); | |
| 81 } | |
| 82 | |
| 83 /// All the names of user-facing exceptions. | |
| 84 final _userFacingExceptions = new Set<String>.from( | |
| 85 ['ApplicationException', 'GitException', // This refers to http.ClientExcept
ion. | |
| 86 'ClientException', | |
| 87 // Errors coming from the Dart analyzer are probably caused by syntax erro
rs | |
| 88 // in user code, so they're user-facing. | |
| 89 'AnalyzerError', | |
| 90 'AnalyzerErrorGroup', | |
| 91 // An error spawning an isolate probably indicates a transformer with an | |
| 92 // invalid import. | |
| 93 'IsolateSpawnException', // IOException and subclasses. | |
| 94 'CertificateException', | |
| 95 'FileSystemException', | |
| 96 'HandshakeException', | |
| 97 'HttpException', | |
| 98 'IOException', | |
| 99 'ProcessException', | |
| 100 'RedirectException', | |
| 101 'SignalException', | |
| 102 'SocketException', | |
| 103 'StdoutException', | |
| 104 'TlsException', | |
| 105 'WebSocketException']); | |
| 106 | |
| 107 /// Returns whether [error] is a user-facing error object. | |
| 108 /// | |
| 109 /// This includes both [ApplicationException] and any dart:io errors. | |
| 110 bool isUserFacingException(error) { | |
| 111 if (error is CrossIsolateException) { | |
| 112 return _userFacingExceptions.contains(error.type); | |
| 113 } | |
| 114 | |
| 115 // TODO(nweiz): unify this list with _userFacingExceptions when issue 5897 is | |
| 116 // fixed. | |
| 117 return error is ApplicationException || | |
| 118 error is AnalyzerError || | |
| 119 error is AnalyzerErrorGroup || | |
| 120 error is IsolateSpawnException || | |
| 121 error is IOException || | |
| 122 error is http.ClientException || | |
| 123 error is YamlException || | |
| 124 error is UsageException; | |
| 125 } | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 937243002:
Revert "Revert "Use native async/await support in pub."" (Closed)
Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart