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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, 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 // Test cascades. | 7 // Test cascades. |
8 | 8 |
9 class A { | 9 class A { |
10 int x; | 10 int x; |
11 int y; | 11 int y; |
12 | 12 |
13 A(this.x, this.y); | 13 A(this.x, this.y); |
14 | 14 |
15 A setX(int x) { | 15 A setX(int x) { this.x = x; return this; } |
16 this.x = x; | |
17 return this; | |
18 } | |
19 | 16 |
20 void setY(int y) { | 17 void setY(int y) { this.y = y; } |
21 this.y = y; | |
22 } | |
23 | 18 |
24 Function swap() { | 19 Function swap() { |
25 int tmp = x; | 20 int tmp = x; |
26 x = y; | 21 x = y; |
27 y = tmp; | 22 y = tmp; |
28 return this.swap; | 23 return this.swap; |
29 } | 24 } |
30 | 25 |
31 void check(int x, int y) { | 26 void check(int x, int y) { |
32 Expect.equals(x, this.x); | 27 Expect.equals(x, this.x); |
33 Expect.equals(y, this.y); | 28 Expect.equals(y, this.y); |
34 } | 29 } |
35 | 30 |
36 operator [](var i) { | 31 operator[](var i) { |
37 if (i == 0) return x; | 32 if (i == 0) return x; |
38 if (i == 1) return y; | 33 if (i == 1) return y; |
39 if (i == "swap") return this.swap; | 34 if (i == "swap") return this.swap; |
40 return null; | 35 return null; |
41 } | 36 } |
42 | 37 |
43 int operator []=(int i, int value) { | 38 int operator[]=(int i, int value) { |
44 if (i == 0) { | 39 if (i == 0) { |
45 x = value; | 40 x = value; |
46 } else if (i == 1) { | 41 } else if (i == 1) { |
47 y = value; | 42 y = value; |
48 } | 43 } |
49 } | 44 } |
50 | 45 |
51 /** | 46 /** |
52 * A pseudo-keyword. | 47 * A pseudo-keyword. |
53 */ | 48 */ |
54 import() { | 49 import() { |
55 x++; | 50 x++; |
56 } | 51 } |
57 } | 52 } |
58 | 53 |
59 main() { | 54 main() { |
60 A a = new A(1, 2); | 55 A a = new A(1, 2); |
61 a | 56 a..check(1, 2) |
62 ..check(1, 2) | 57 ..swap()..check(2, 1) |
63 ..swap() | 58 ..x = 4..y = 9..check(4, 9) |
64 ..check(2, 1) | 59 ..setX(10)..check(10, 9) |
65 ..x = 4 | 60 ..y = 5..check(10, 5) |
66 ..y = 9 | 61 ..swap()()()..check(5, 10) |
67 ..check(4, 9) | 62 ..[0] = 2..check(2, 10) |
68 ..setX(10) | 63 ..setX(10).setY(3)..check(10, 3) |
69 ..check(10, 9) | 64 ..setX(7)["swap"]()..check(3, 7) |
70 ..y = 5 | 65 ..import()..check(4, 7) |
71 ..check(10, 5) | 66 ..["swap"]()()()..check(7, 4); |
72 ..swap()()() | 67 a.check(7,4); |
73 ..check(5, 10) | |
74 ..[0] = 2 | |
75 ..check(2, 10) | |
76 ..setX(10).setY(3) | |
77 ..check(10, 3) | |
78 ..setX(7)["swap"]() | |
79 ..check(3, 7) | |
80 ..import() | |
81 ..check(4, 7) | |
82 ..["swap"]()()() | |
83 ..check(7, 4); | |
84 a.check(7, 4); | |
85 a..(42); // //# 01: compile-time error | 68 a..(42); // //# 01: compile-time error |
86 a..37; // //# 02: compile-time error | 69 a..37; // //# 02: compile-time error |
87 a.."foo"; // //# 03: compile-time error | 70 a.."foo"; // //# 03: compile-time error |
88 } | 71 } |
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