| // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file | |
| // for details. All rights reserved. Use of this source code is governed by a | |
| // BSD-style license that can be found in the LICENSE file. | |
| /// @assertion A numeric literal is either a decimal or hexadecimal integer of | |
| /// arbitrary size, or a decimal double. | |
| /// | |
| /// numericLiteral: | |
| /// NUMBER| | |
| /// HEX_NUMBER | |
| ///; | |
| /// NUMBER: | |
| /// DIGIT+ ('.' DIGIT+)? EXPONENT? | | |
| /// '.' DIGIT+ EXPONENT? | |
| /// ; | |
| /// EXPONENT: | |
| /// ('e' | 'E') ('+' | '-')? DIGIT+ | |
| /// ; | |
| /// HEX NUMBER: | |
| /// '0x' HEX DIGIT+ | | |
| /// '0X' HEX DIGIT+ | |
| /// ; | |
| /// HEX DIGIT: | |
| /// 'a'..'f' | | |
| /// 'A'..'F' | | |
| /// DIGIT | |
| /// ; | |
| /// @description Checks that expression in form +(+num) can't be compiled. | |
| /// @author hlodvig | |
| main() { | |
| var x = +(+1); | |
| // ^ | |
| // [analyzer] unspecified | |
| // [cfe] unspecified | |
| } |