| // 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. |
| |
| /// @assertion A cascade expression e..s translates as follows, where F is the |
| /// translation of e and x and y are fresh object level variables: |
| /// fn[k : Exp -> Exp] : Exp => |
| /// F[fn[r : Exp] : Exp => let x = r in |
| /// let y = EXP(x.s) |
| /// in k[x] |
| /// ] |
| /// |
| /// @description Check that a cascade expression e..s translates as follows, |
| /// where F is the translation of e and x and y are fresh object level variables: |
| /// fn[k : Exp -> Exp] : Exp => |
| /// F[fn[r : Exp] : Exp => let x = r in |
| /// let y = EXP(x.s) |
| /// in k[x] |
| /// ] |
| /// @author sgrekhov@unipro.ru |
| |
| // Requirements=nnbd-strong |
| import "../../Utils/expect.dart"; |
| |
| class C { |
| int c1 = 0, c2 = 0; |
| String get log => "test1 called $c1 times, test2() called $c2 times"; |
| |
| String get test1 { |
| c1++; |
| return "Show must go on"; |
| } |
| |
| String test2() { |
| c2++; |
| return "Let it be"; |
| } |
| } |
| |
| main() { |
| C c1 = new C(); |
| |
| var actual1 = c1 .. test1; |
| var expected = c1; |
| Expect.equals(expected, actual1); |
| Expect.equals("test1 called 1 times, test2() called 0 times", c1.log); |
| |
| var actual2 = c1 .. test2(); |
| Expect.equals(expected, actual2); |
| Expect.equals("test1 called 1 times, test2() called 1 times", c1.log); |
| |
| var actual3 = c1 .. test1 .. test2(); |
| Expect.equals(expected, actual3); |
| Expect.equals("test1 called 2 times, test2() called 2 times", c1.log); |
| |
| C? c2 = new C(); |
| if (c2 != null) { |
| var actual4 = c2 .. test1; |
| var expected2 = c2; |
| Expect.equals(expected2, actual4); |
| Expect.equals("test1 called 1 times, test2() called 0 times", c2.log); |
| |
| var actual5 = c2 .. test2(); |
| Expect.equals(expected2, actual5); |
| Expect.equals("test1 called 1 times, test2() called 1 times", c2.log); |
| |
| var actual6 = c2 .. test1 .. test2(); |
| Expect.equals(expected2, actual6); |
| Expect.equals("test1 called 2 times, test2() called 2 times", c2.log); |
| } |
| } |