| /* |
| * 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 Additive expressions invoke the addition operators on objects. |
| * additiveExpression: |
| * multiplicativeExpression (additiveOperator multiplicativeExpression)* | |
| * super (additiveOperator multiplicativeExpression)+ |
| * ; |
| * additiveOperator: |
| * '+' | |
| * '-' |
| * ; |
| * An additive expression is either a multiplicative expression, or an |
| * invocation of an additive operator on either super or an expression e1, with |
| * argument e2. |
| * @description Checks that various expressions fitted into this grammar don't |
| * cause compile-time errors. |
| * @author msyabro |
| */ |
| |
| topLevelFunction() {} |
| |
| class S { |
| const S(); |
| operator +(var x) {} |
| operator -(var x) {} |
| operator [](var idx) {} |
| final foo = 1; |
| } |
| |
| class A extends S { |
| method() {} |
| get id {} |
| set id(var v) {} |
| |
| test() { |
| //super is a primary |
| super + 0; |
| super - super[0]; |
| |
| // chaining |
| super + 0 - 1 + {} - null; |
| |
| // (...) |
| (this) + (1 ^ 0 & 4) - (1 <= 0); |
| |
| //invocations |
| method() + topLevelFunction(); |
| this.method()(1)(1, 2) - id[0]().x; |
| |
| |
| //unary expressions |
| --id - id++; |
| ~-id + !!false; |
| |
| //identifier |
| id + id - id; |
| } |
| } |
| |
| main() { |
| A a = new A(); |
| a.test(); |
| } |