| OLD | NEW |
| 1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file |
| 2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
| 3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
| 4 | 4 |
| 5 import "package:expect/expect.dart"; | 5 import "package:expect/expect.dart"; |
| 6 | 6 |
| 7 // Interpolation effect analysis test. | 7 // Interpolation effect analysis test. |
| 8 | 8 |
| 9 get never => new DateTime.now().millisecondsSinceEpoch == 0; | 9 get never => new DateTime.now().millisecondsSinceEpoch == 0; |
| 10 | 10 |
| 11 class A { | 11 class A { |
| 12 int a = 0; | 12 int a = 0; |
| 13 toString() { ++a; return 'A'; } | 13 toString() { |
| 14 ++a; |
| 15 return 'A'; |
| 16 } |
| 14 } | 17 } |
| 15 | 18 |
| 16 // Many interpolations to make function too big to inline. | 19 // Many interpolations to make function too big to inline. |
| 17 // Summary for [fmt] must include effects from toString(). | 20 // Summary for [fmt] must include effects from toString(). |
| 18 fmt(x) => '$x$x$x$x$x$x$x$x$x$x$x$x$x$x$x$x$x$x$x$x$x$x$x$x$x$x$x$x$x$x'; | 21 fmt(x) => '$x$x$x$x$x$x$x$x$x$x$x$x$x$x$x$x$x$x$x$x$x$x$x$x$x$x$x$x$x$x'; |
| 19 | 22 |
| 20 test(a) { | 23 test(a) { |
| 21 if (a == null) return; | 24 if (a == null) return; |
| 22 if (never) a.a += 1; | 25 if (never) a.a += 1; |
| 23 var b = a.a; // field load | 26 var b = a.a; // field load |
| 24 var c = fmt(a); // field modified through implicit call to toString() | 27 var c = fmt(a); // field modified through implicit call to toString() |
| 25 var d = a.a; // field re-load | 28 var d = a.a; // field re-load |
| 26 Expect.equals('A 0 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA 30', '$a $b $c $d'); | 29 Expect.equals('A 0 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA 30', '$a $b $c $d'); |
| 27 | 30 |
| 28 // Extra use of [fmt] to prevent inlining on basis of single reference. | 31 // Extra use of [fmt] to prevent inlining on basis of single reference. |
| 29 Expect.equals('', fmt('')); | 32 Expect.equals('', fmt('')); |
| 30 } | 33 } |
| 31 | 34 |
| 32 main() { | 35 main() { |
| 33 test(null); | 36 test(null); |
| 34 test(new A()); | 37 test(new A()); |
| 35 } | 38 } |
| OLD | NEW |