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1 // Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file | |
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. | |
4 | |
5 import 'expect.dart'; | |
6 | |
7 testSimpleBreak() { | |
8 var x = 1; | |
9 while (true) { | |
10 try { | |
11 x++; | |
12 break; | |
13 } finally { | |
14 x++; | |
15 break; | |
16 } | |
17 } | |
18 return x; | |
19 } | |
20 | |
21 testReturnFinally() { | |
22 try { | |
23 return 1; | |
24 } finally { | |
25 return 42; | |
26 } | |
27 } | |
28 | |
29 testNestedReturnFinally() { | |
30 try { | |
31 try { | |
32 return 1; | |
33 } finally { | |
34 return 2; | |
35 } | |
36 } finally { | |
37 return 42; | |
38 } | |
39 } | |
40 | |
41 testReturnInsideLoop() { | |
42 while (true) { | |
43 try { | |
44 print("hello"); | |
45 } finally { | |
46 return 42; | |
47 } | |
48 } | |
49 } | |
50 | |
51 testStopContinueInsideLoop() { | |
52 while (true) { | |
53 try { | |
54 continue; | |
55 } finally { | |
56 return 42; | |
57 } | |
58 } | |
59 } | |
60 | |
61 testStopBreakInsideLoop() { | |
62 var foo = 1; | |
63 while (true) { | |
64 try { | |
65 if (foo == 1) { | |
66 // 1st iteration we break. | |
67 break; | |
68 } else if (foo == 2) { | |
69 // 2nd iteration we return. | |
70 return 42; | |
71 } | |
72 } finally { | |
73 // 1st iteration we overrwrite break with continue. | |
74 if (foo == 1) { | |
75 foo++; | |
76 continue; | |
77 } else { | |
78 // Let return work | |
79 } | |
80 } | |
81 } | |
82 return foo; | |
83 } | |
84 | |
85 testStopBreakInsideLoop2() { | |
86 var foo = 1; | |
87 while (true) { | |
88 try { | |
89 if (foo == 1) { | |
90 // 1st iteration we break. | |
91 break; | |
92 } else if (foo == 2) { | |
93 // 2nd iteration we return. | |
94 return -1; | |
95 } | |
96 } finally { | |
97 // 1st iteration we overrwrite break with continue. | |
98 if (foo == 1) { | |
99 foo++; | |
100 continue; | |
101 } else { | |
102 // 2nd iteration we overrwrite return with break. | |
103 foo = 42; | |
104 break; | |
105 } | |
106 } | |
107 } | |
108 return foo; | |
109 } | |
110 | |
111 testStopContinueInsideSwitch() { | |
112 var foo = 1; | |
113 switch (foo) { | |
114 jump5: | |
115 case 5: | |
116 return -1; | |
117 | |
118 case 1: | |
119 try { | |
120 continue jump5; | |
121 } finally { | |
122 return 42; | |
123 } | |
124 } | |
125 } | |
126 | |
127 testStopContinueInsideSwitch2() { | |
128 var foo = 1; | |
129 switch (foo) { | |
130 jump5: | |
131 case 5: | |
132 return -1; | |
133 | |
134 jump42: | |
135 case 5: | |
136 return 42; | |
137 | |
138 case 1: | |
139 try { | |
140 continue jump5; | |
141 } finally { | |
142 continue jump42; | |
143 } | |
144 } | |
145 } | |
146 | |
147 main() { | |
148 Expect.isTrue(testSimpleBreak() == 3); | |
149 Expect.isTrue(testReturnFinally() == 42); | |
150 Expect.isTrue(testNestedReturnFinally() == 42); | |
151 Expect.isTrue(testReturnInsideLoop() == 42); | |
152 Expect.isTrue(testStopContinueInsideLoop() == 42); | |
153 Expect.isTrue(testStopBreakInsideLoop() == 42); | |
154 Expect.isTrue(testStopBreakInsideLoop2() == 42); | |
155 Expect.isTrue(testStopContinueInsideLoop() == 42); | |
156 Expect.isTrue(testStopContinueInsideSwitch() == 42); | |
157 Expect.isTrue(testStopContinueInsideSwitch2() == 42); | |
158 } | |
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