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1 // Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2017, 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 library fasta.problems; | 5 library fasta.problems; |
6 | 6 |
| 7 import 'compiler_context.dart' show CompilerContext; |
| 8 |
7 import 'messages.dart' | 9 import 'messages.dart' |
8 show | 10 show |
9 Message, | 11 Message, |
10 deprecated_format, | |
11 templateInternalProblemUnexpected, | 12 templateInternalProblemUnexpected, |
12 templateInternalProblemUnhandled, | 13 templateInternalProblemUnhandled, |
13 templateInternalProblemUnimplemented, | 14 templateInternalProblemUnimplemented, |
14 templateInternalProblemUnsupported; | 15 templateInternalProblemUnsupported; |
15 | 16 |
| 17 import 'severity.dart' show Severity; |
| 18 |
16 /// Used to report an internal error. | 19 /// Used to report an internal error. |
17 /// | 20 /// |
18 /// Internal errors should be avoided as best as possible, but are preferred | 21 /// Internal errors should be avoided as best as possible, but are preferred |
19 /// over assertion failures. The message should start with an upper-case letter | 22 /// over assertion failures. The message should start with an upper-case letter |
20 /// and contain a short description that may help a developer debug the issue. | 23 /// and contain a short description that may help a developer debug the issue. |
21 /// This method should be called instead of using `throw`, as this allows us to | 24 /// This method should be called instead of using `throw`, as this allows us to |
22 /// ensure that there are no throws anywhere else in the codebase. | 25 /// ensure that there are no throws anywhere else in the codebase. |
23 /// | 26 /// |
24 /// Before printing the message, the string `"Internal error: "` is prepended. | 27 /// Before printing the message, the string `"Internal error: "` is prepended. |
25 dynamic internalProblem(Message message, int charOffset, Uri uri) { | 28 dynamic internalProblem(Message message, int charOffset, Uri uri) { |
26 String text = "Internal error: ${message.message}"; | 29 throw CompilerContext.current |
27 if (message.tip != null) { | 30 .format(message.withLocation(uri, charOffset), Severity.internalProblem); |
28 text += "\n${message.tip}"; | |
29 } | |
30 if (uri == null && charOffset == -1) { | |
31 throw text; | |
32 } else { | |
33 throw deprecated_format(uri, charOffset, text); | |
34 } | |
35 } | 31 } |
36 | 32 |
37 dynamic unimplemented(String what, [int charOffset = -1, Uri uri = null]) { | 33 dynamic unimplemented(String what, [int charOffset = -1, Uri uri = null]) { |
38 return internalProblem( | 34 return internalProblem( |
39 templateInternalProblemUnimplemented.withArguments(what), | 35 templateInternalProblemUnimplemented.withArguments(what), |
40 charOffset, | 36 charOffset, |
41 uri); | 37 uri); |
42 } | 38 } |
43 | 39 |
44 dynamic unhandled(String what, String where, int charOffset, Uri uri) { | 40 dynamic unhandled(String what, String where, int charOffset, Uri uri) { |
45 return internalProblem( | 41 return internalProblem( |
46 templateInternalProblemUnhandled.withArguments(what, where), | 42 templateInternalProblemUnhandled.withArguments(what, where), |
47 charOffset, | 43 charOffset, |
48 uri); | 44 uri); |
49 } | 45 } |
50 | 46 |
51 dynamic unexpected(String expected, String actual, int charOffset, Uri uri) { | 47 dynamic unexpected(String expected, String actual, int charOffset, Uri uri) { |
52 return internalProblem( | 48 return internalProblem( |
53 templateInternalProblemUnexpected.withArguments(expected, actual), | 49 templateInternalProblemUnexpected.withArguments(expected, actual), |
54 charOffset, | 50 charOffset, |
55 uri); | 51 uri); |
56 } | 52 } |
57 | 53 |
58 dynamic unsupported(String operation, int charOffset, Uri uri) { | 54 dynamic unsupported(String operation, int charOffset, Uri uri) { |
59 return internalProblem( | 55 return internalProblem( |
60 templateInternalProblemUnsupported.withArguments(operation), | 56 templateInternalProblemUnsupported.withArguments(operation), |
61 charOffset, | 57 charOffset, |
62 uri); | 58 uri); |
63 } | 59 } |
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