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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 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 | 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 const bool VERBOSE = false; | 5 const bool VERBOSE = false; |
6 | 6 |
7 /** | 7 /** |
8 * A parser event listener that does nothing except throw exceptions | 8 * A parser event listener that does nothing except throw exceptions |
9 * on parser errors. | 9 * on parser errors. |
10 */ | 10 */ |
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931 } | 931 } |
932 | 932 |
933 Token expectedExpression(Token token) { | 933 Token expectedExpression(Token token) { |
934 listener.cancel("expected an expression, but got '${token.slowToString()}'", | 934 listener.cancel("expected an expression, but got '${token.slowToString()}'", |
935 token: token); | 935 token: token); |
936 pushNode(null); | 936 pushNode(null); |
937 return skipToEof(token); | 937 return skipToEof(token); |
938 } | 938 } |
939 | 939 |
940 Token unexpected(Token token) { | 940 Token unexpected(Token token) { |
941 listener.cancel("unexpected token '${token.slowToString()}'", token: token); | 941 String message = "unexpected token '${token.slowToString()}'"; |
| 942 if (token.info == BAD_INPUT_INFO) { |
| 943 message = token.stringValue; |
| 944 } |
| 945 listener.cancel(message, token: token); |
942 return skipToEof(token); | 946 return skipToEof(token); |
943 } | 947 } |
944 | 948 |
945 Token expectedBlockToSkip(Token token) { | 949 Token expectedBlockToSkip(Token token) { |
946 if (token.stringValue === 'native') { | 950 if (token.stringValue === 'native') { |
947 return native.handleNativeBlockToSkip(this, token); | 951 return native.handleNativeBlockToSkip(this, token); |
948 } else { | 952 } else { |
949 return unexpected(token); | 953 return unexpected(token); |
950 } | 954 } |
951 } | 955 } |
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1866 | 1870 |
1867 Node parse(DiagnosticListener diagnosticListener, | 1871 Node parse(DiagnosticListener diagnosticListener, |
1868 CompilationUnitElement element, | 1872 CompilationUnitElement element, |
1869 doParse(Parser parser)) { | 1873 doParse(Parser parser)) { |
1870 NodeListener listener = new NodeListener(diagnosticListener, element); | 1874 NodeListener listener = new NodeListener(diagnosticListener, element); |
1871 doParse(new Parser(listener)); | 1875 doParse(new Parser(listener)); |
1872 Node node = listener.popNode(); | 1876 Node node = listener.popNode(); |
1873 assert(listener.nodes.isEmpty()); | 1877 assert(listener.nodes.isEmpty()); |
1874 return node; | 1878 return node; |
1875 } | 1879 } |
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