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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 mkOne() => 1; | |
| 8 mkTwo() => 2; | |
| 9 | |
| 10 testNormal() { | |
| 11 int result; | |
| 12 switch(mkOne()) { | |
| 13 case 0: | |
| 14 result = 0; | |
| 15 break; | |
| 16 case 1: | |
| 17 result = 1; | |
| 18 break; | |
| 19 case 2: | |
| 20 result = 2; | |
| 21 break; | |
| 22 default: | |
| 23 result = 3; | |
| 24 break; | |
| 25 } | |
| 26 Expect.isTrue(result == 1); | |
| 27 } | |
| 28 | |
| 29 testDefault() { | |
| 30 int result; | |
| 31 switch(null) { | |
| 32 case 0: | |
| 33 result = 0; | |
| 34 break; | |
| 35 case 1: | |
| 36 result = 1; | |
| 37 break; | |
| 38 case 2: | |
| 39 result = 2; | |
| 40 break; | |
| 41 default: | |
| 42 result = 3; | |
| 43 break; | |
| 44 } | |
| 45 Expect.isTrue(result == 3); | |
| 46 } | |
| 47 | |
| 48 testFallThrough() { | |
| 49 int result; | |
| 50 switch(mkOne()) { | |
| 51 case 0: | |
| 52 result = 0; | |
| 53 break; | |
| 54 case 1: | |
| 55 case 2: | |
| 56 result = 2; | |
| 57 break; | |
| 58 default: | |
| 59 result = 3; | |
| 60 break; | |
| 61 } | |
| 62 Expect.isTrue(result == 2); | |
| 63 } | |
| 64 | |
| 65 testContinue() { | |
| 66 int result; | |
| 67 switch(mkTwo()) { | |
| 68 case 0: | |
| 69 result = 0; | |
| 70 break; | |
| 71 | |
| 72 setitto1: | |
| 73 case 1: | |
| 74 result = 1; | |
| 75 continue setitto3; | |
| 76 | |
| 77 case 2: | |
| 78 result = 2; | |
| 79 continue setitto1; | |
| 80 | |
| 81 setitto3: | |
| 82 default: | |
| 83 result = 3; | |
| 84 break; | |
| 85 } | |
| 86 Expect.isTrue(result == 3); | |
| 87 } | |
| 88 | |
| 89 testOnlyDefault() { | |
| 90 int result; | |
| 91 switch(mkTwo()) { | |
| 92 default: | |
| 93 result = 42; | |
| 94 } | |
| 95 Expect.isTrue(result == 42); | |
| 96 } | |
| 97 | |
| 98 testOnlyDefaultWithBreak() { | |
| 99 int result; | |
| 100 switch(mkTwo()) { | |
| 101 default: | |
| 102 result = 42; | |
| 103 } | |
| 104 Expect.isTrue(result == 42); | |
| 105 } | |
| 106 | |
| 107 String testReturn() { | |
| 108 switch(mkOne()) { | |
| 109 case 0: return "bad"; | |
| 110 case 1: return "good"; | |
| 111 default: return "bad"; | |
| 112 } | |
| 113 } | |
| 114 | |
| 115 regressionTest() { | |
| 116 Expect.isTrue(regressionTestHelper(0, 0) == -1); | |
| 117 Expect.isTrue(regressionTestHelper(4, 0) == -1); | |
| 118 Expect.isTrue(regressionTestHelper(4, 1) == 42); | |
| 119 } | |
| 120 | |
| 121 regressionTestHelper(i, j) { | |
| 122 switch (i) { | |
| 123 case 4: | |
| 124 switch (j) { | |
| 125 case 1: | |
| 126 return 42; | |
| 127 } | |
| 128 } | |
| 129 return -1; | |
| 130 } | |
| 131 | |
| 132 regressionTest2() { | |
| 133 var state = 1; | |
| 134 while (state < 2) { | |
| 135 switch (state) { | |
| 136 case 1: | |
| 137 state++; | |
| 138 break; | |
| 139 case 3: | |
| 140 case 4: | |
| 141 // We will translate this currently to an empty [Fragment] which can | |
| 142 // cause issues if we would like to append/prepend to it. | |
| 143 assert(false); | |
| 144 } | |
| 145 } | |
| 146 return [1]; | |
| 147 } | |
| 148 | |
| 149 regressionTest3() { | |
| 150 f(x) { | |
| 151 switch (x) { | |
| 152 case 1: | |
| 153 return 2; | |
| 154 case 2: | |
| 155 } | |
| 156 throw new UnsupportedError("Unexpected constant kind."); | |
| 157 } | |
| 158 Expect.isTrue(f(1) == 2); | |
| 159 } | |
| 160 | |
| 161 main() { | |
| 162 testNormal(); | |
| 163 testDefault(); | |
| 164 testFallThrough(); | |
| 165 testContinue(); | |
| 166 testOnlyDefault(); | |
| 167 testOnlyDefaultWithBreak(); | |
| 168 regressionTest(); | |
| 169 regressionTest2(); | |
| 170 regressionTest3(); | |
| 171 | |
| 172 var result = testReturn(); | |
| 173 Expect.isTrue(result == "good"); | |
| 174 } | |
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Chromium Code Reviews
Issue 2455593002:
Revert "Merge more Kernel infrastructure from kernel_sdk SDK fork." (Closed)
