| // 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 Shift expressions invoke the shift operators on objects. |
| /// shiftExpression: |
| /// additiveExpression (shiftOperator additiveExpression)* | |
| /// super (shiftOperator additiveExpression)+ |
| /// ; |
| /// shiftOperator: |
| /// '<<' | |
| /// '>>' | |
| /// '>>>' |
| /// ; |
| /// A shift expression is either an additive expression, or an invocation |
| /// of a shift operator on either super or an expression e1, with argument e2. |
| /// @description Checks that it is permitted to chain as many shift expressions |
| /// as one likes. |
| /// @author rodionov |
| |
| |
| class A { |
| operator <<(other) => other; |
| operator >>(other) => other; |
| operator >>>(other) => other; |
| } |
| |
| class B extends A { |
| void test() { |
| super >> 1 << 1 << -1000 << 100 >> 124 >>> 1123 << 10 >>> 111; |
| } |
| } |
| |
| main() { |
| try { |
| 1 >> 1 << 1 >>> -12 << -1000 << 100 >> 124 >>> 3; |
| new B().test(); |
| } catch (e) {} |
| } |