Index: frog/tests/leg_only/src/CascadeTest.dart |
diff --git a/frog/tests/leg_only/src/CascadeTest.dart b/frog/tests/leg_only/src/CascadeTest.dart |
new file mode 100644 |
index 0000000000000000000000000000000000000000..a3053abbc43323316610d63bf5fcdf7f0190a9e4 |
--- /dev/null |
+++ b/frog/tests/leg_only/src/CascadeTest.dart |
@@ -0,0 +1,46 @@ |
+// Copyright (c) 2012, 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. |
+ |
+// Test cascades. |
+ |
+class A { |
+ int x; |
+ int y; |
+ A(this.x, this.y); |
+ A setX(int x) { this.x = x; return this; } |
+ void setY(int y) { this.y = y; } |
+ Function swap() { |
+ int tmp = x; |
+ x = y; |
+ y = tmp; |
+ return this.swap; |
+ } |
+ void check(int x, int y) { |
+ Expect.equals(x, this.x); |
+ Expect.equals(y, this.y); |
+ } |
+ int operator[](var i) { |
+ if (i == 0) return x; |
+ if (i == 1) return y; |
+ if (i == "swap") return this.swap; |
+ return null; |
+ } |
+ int operator[]=(int i, int value) { |
+ if (i == 0) { |
+ x = value; |
+ } else if (i == 1) { |
+ y = value; |
+ } |
+ } |
+} |
+ |
+main() { |
+ A a = new A(1, 2); |
+ a..check(1, 2)..swap()..check(2, 1)..x = 4 |
+ ..check(4, 1)..setX(10)..check(10, 1)..y = 5 |
+ ..check(10, 5)..swap()()()..check(5, 10)..[0] = 2 |
+ ..check(2, 10)..setX(10).setY(3)..check(10, 3) |
sra1
2012/03/30 21:52:20
Could you reformat it so that the assignment forms
Lasse Reichstein Nielsen
2012/04/10 08:12:43
Good point.
I wasn't expecting it to work, but th
|
+ ..["swap"]()()()..check(3, 10); |
+ a..(42); /// 01: compile-time error |
+} |