| /* |
| * 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 The static type of an additive expression is usually determined |
| * by the signature given in the declaration of the operator used. However, |
| * invocations of the operators + and - of class int are treated specially |
| * by the typechecker. |
| * The static type of an expression e1 + e2 where e1 has static type int is |
| * int if the static type of e2 is int, and double if the static type of e2 is |
| * double. |
| * The static type of an expression e1 - e2 where e1 has static type int is |
| * int if the static type of e2 is int, and double if the static type of e2 is |
| * double. |
| * @description Checks special cases for static types of x+y, x-y when x is int. |
| * @static-clean |
| * @author ilya |
| */ |
| |
| int f1(int x, int y) => x + y; |
| int f2(int x, int y) => x - y; |
| double f3(int x, double y) => x + y; |
| double f4(int x, double y) => x - y; |
| |
| main() { |
| f1(1, 2); |
| f2(1, 2); |
| f3(1, 2.0); |
| f4(1, 2.0); |
| } |