| // Copyright (c) 2019, 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. | |
| /// The interpolated identifier can't start with '$'. | |
| main() { | |
| var $x = 1; | |
| var s = "eins und $$x macht zwei."; | |
| // ^ | |
| // [analyzer] SYNTACTIC_ERROR.MISSING_IDENTIFIER | |
| // [cfe] A '$' has special meaning inside a string, and must be followed by an identifier or an expression in curly braces ({}). | |
| // ^ | |
| // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_UNQUALIFIED_NAME_READ | |
| // [cfe] Undefined name 'x'. | |
| } |