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| 1 // Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2017, 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 // Dart test program to test operation precedence. | 4 // Dart test program to test operation precedence. |
| 5 | 5 |
| 6 library precedence_test; | 6 library precedence_test; |
| 7 |
| 7 import "package:expect/expect.dart"; | 8 import "package:expect/expect.dart"; |
| 8 | 9 |
| 9 main() { | 10 main() { |
| 10 testBang(); | 11 testBang(); |
| 11 testIndexWithPrefixAdd(); | 12 testIndexWithPrefixAdd(); |
| 12 testIndexWithPostfixAdd(); | 13 testIndexWithPostfixAdd(); |
| 13 testTilde(); | 14 testTilde(); |
| 14 testUnaryPrefixWithAdd(); | 15 testUnaryPrefixWithAdd(); |
| 15 testUnaryPostfixWithAdd(); | 16 testUnaryPostfixWithAdd(); |
| 16 testUnaryPrefixWithMultiply(); | 17 testUnaryPrefixWithMultiply(); |
| 17 testUnaryPostfixWithMultiply(); | 18 testUnaryPostfixWithMultiply(); |
| 18 } | 19 } |
| 19 | 20 |
| 20 void testBang() { | 21 void testBang() { |
| 21 int x = 3; | 22 int x = 3; |
| 22 | 23 |
| 23 Expect.equals(!true == false, true); | 24 Expect.equals(!true == false, true); |
| 24 Expect.equals(!x.isEven, true); | 25 Expect.equals(!x.isEven, true); |
| 25 Expect.equals(!(++x).isEven, false); | 26 Expect.equals(!(++x).isEven, false); |
| 26 Expect.equals(x, 4); | 27 Expect.equals(x, 4); |
| 27 Expect.equals(!(x++).isEven, false); | 28 Expect.equals(!(x++).isEven, false); |
| 28 Expect.equals(x, 5); | 29 Expect.equals(x, 5); |
| 29 } | 30 } |
| 30 | 31 |
| 31 void testIndexWithPrefixAdd() { | 32 void testIndexWithPrefixAdd() { |
| 32 var x = <int>[3]; | 33 var x = <int>[3]; |
| 33 | 34 |
| 34 Expect.equals(++x[0] + 3, 7); | 35 Expect.equals(++x[0] + 3, 7); |
| 35 Expect.equals(x[0], 4); | 36 Expect.equals(x[0], 4); |
| 36 Expect.equals(++x[0] - 3, 2); | 37 Expect.equals(++x[0] - 3, 2); |
| 37 Expect.equals(x[0], 5); | 38 Expect.equals(x[0], 5); |
| 38 Expect.equals(--x[0] + 4, 8); | 39 Expect.equals(--x[0] + 4, 8); |
| 39 Expect.equals(x[0], 4); | 40 Expect.equals(x[0], 4); |
| 40 Expect.equals(--x[0] - 4, -1); | 41 Expect.equals(--x[0] - 4, -1); |
| 41 Expect.equals(x[0], 3); | 42 Expect.equals(x[0], 3); |
| 42 | 43 |
| 43 Expect.equals(3 + ++x[0], 7); | 44 Expect.equals(3 + ++x[0], 7); |
| 44 Expect.equals(x[0], 4); | 45 Expect.equals(x[0], 4); |
| 45 Expect.equals(3 - ++x[0], -2); | 46 Expect.equals(3 - ++x[0], -2); |
| 46 Expect.equals(x[0], 5); | 47 Expect.equals(x[0], 5); |
| 47 Expect.equals(4 + --x[0], 8); | 48 Expect.equals(4 + --x[0], 8); |
| 48 Expect.equals(x[0], 4); | 49 Expect.equals(x[0], 4); |
| 49 Expect.equals(4 - --x[0], 1); | 50 Expect.equals(4 - --x[0], 1); |
| 50 Expect.equals(x[0], 3); | 51 Expect.equals(x[0], 3); |
| 51 } | 52 } |
| 52 | 53 |
| 53 void testIndexWithPostfixAdd() { | 54 void testIndexWithPostfixAdd() { |
| 54 var x = <int>[3]; | 55 var x = <int>[3]; |
| 55 | 56 |
| 56 Expect.equals(x[0]++ + 3, 6); | 57 Expect.equals(x[0]++ + 3, 6); |
| 57 Expect.equals(x[0], 4); | 58 Expect.equals(x[0], 4); |
| 58 Expect.equals(x[0]++ - 3, 1); | 59 Expect.equals(x[0]++ - 3, 1); |
| 59 Expect.equals(x[0], 5); | 60 Expect.equals(x[0], 5); |
| 60 Expect.equals(x[0]-- + 4, 9); | 61 Expect.equals(x[0]-- + 4, 9); |
| 61 Expect.equals(x[0], 4); | 62 Expect.equals(x[0], 4); |
| 62 Expect.equals(x[0]-- - 4, 0); | 63 Expect.equals(x[0]-- - 4, 0); |
| 63 Expect.equals(x[0], 3); | 64 Expect.equals(x[0], 3); |
| 64 | 65 |
| 65 Expect.equals(3 + x[0]++, 6); | 66 Expect.equals(3 + x[0]++, 6); |
| (...skipping 10 matching lines...) Expand all Loading... |
| 76 int x = 3; | 77 int x = 3; |
| 77 | 78 |
| 78 Expect.equals(~x.sign, ~(x.sign)); | 79 Expect.equals(~x.sign, ~(x.sign)); |
| 79 Expect.equals(~x + 7, (~3) + 7); | 80 Expect.equals(~x + 7, (~3) + 7); |
| 80 | 81 |
| 81 Expect.equals(~++x + 7, (~4) + 7); | 82 Expect.equals(~++x + 7, (~4) + 7); |
| 82 Expect.equals(x, 4); | 83 Expect.equals(x, 4); |
| 83 Expect.equals(~x++ + 7, (~4) + 7); | 84 Expect.equals(~x++ + 7, (~4) + 7); |
| 84 Expect.equals(x, 5); | 85 Expect.equals(x, 5); |
| 85 | 86 |
| 86 Expect.equals(~--x + 7, (~4) + 7); | 87 Expect.equals(~ --x + 7, (~4) + 7); |
| 87 Expect.equals(x, 4); | 88 Expect.equals(x, 4); |
| 88 Expect.equals(~x-- + 7, (~4) + 7); | 89 Expect.equals(~x-- + 7, (~4) + 7); |
| 89 Expect.equals(x, 3); | 90 Expect.equals(x, 3); |
| 90 } | 91 } |
| 91 | 92 |
| 92 void testUnaryPrefixWithAdd() { | 93 void testUnaryPrefixWithAdd() { |
| 93 int x = 3; | 94 int x = 3; |
| 94 | 95 |
| 95 Expect.equals(++x + 3, 7); | 96 Expect.equals(++x + 3, 7); |
| 96 Expect.equals(x, 4); | 97 Expect.equals(x, 4); |
| 97 Expect.equals(++x - 3, 2); | 98 Expect.equals(++x - 3, 2); |
| 98 Expect.equals(x, 5); | 99 Expect.equals(x, 5); |
| 99 Expect.equals(--x + 4, 8); | 100 Expect.equals(--x + 4, 8); |
| 100 Expect.equals(x, 4); | 101 Expect.equals(x, 4); |
| 101 Expect.equals(--x - 4, -1); | 102 Expect.equals(--x - 4, -1); |
| 102 Expect.equals(x, 3); | 103 Expect.equals(x, 3); |
| 103 | 104 |
| 104 Expect.equals(3 + ++x, 7); | 105 Expect.equals(3 + ++x, 7); |
| 105 Expect.equals(x, 4); | 106 Expect.equals(x, 4); |
| 106 Expect.equals(3 - ++x, -2); | 107 Expect.equals(3 - ++x, -2); |
| 107 Expect.equals(x, 5); | 108 Expect.equals(x, 5); |
| 108 Expect.equals(4 + --x, 8); | 109 Expect.equals(4 + --x, 8); |
| 109 Expect.equals(x, 4); | 110 Expect.equals(x, 4); |
| 110 Expect.equals(4 - --x, 1); | 111 Expect.equals(4 - --x, 1); |
| 111 Expect.equals(x, 3); | 112 Expect.equals(x, 3); |
| 112 } | 113 } |
| 113 | 114 |
| 114 void testUnaryPostfixWithAdd() { | 115 void testUnaryPostfixWithAdd() { |
| 115 int x = 3; | 116 int x = 3; |
| 116 | 117 |
| 117 Expect.equals(x++ + 3, 6); | 118 Expect.equals(x++ + 3, 6); |
| 118 Expect.equals(x, 4); | 119 Expect.equals(x, 4); |
| 119 Expect.equals(x++ - 3, 1); | 120 Expect.equals(x++ - 3, 1); |
| 120 Expect.equals(x, 5); | 121 Expect.equals(x, 5); |
| 121 Expect.equals(x-- + 4, 9); | 122 Expect.equals(x-- + 4, 9); |
| 122 Expect.equals(x, 4); | 123 Expect.equals(x, 4); |
| 123 Expect.equals(x-- - 4, 0); | 124 Expect.equals(x-- - 4, 0); |
| 124 Expect.equals(x, 3); | 125 Expect.equals(x, 3); |
| 125 | 126 |
| 126 Expect.equals(3 + x++, 6); | 127 Expect.equals(3 + x++, 6); |
| 127 Expect.equals(x, 4); | 128 Expect.equals(x, 4); |
| 128 Expect.equals(3 - x++, -1); | 129 Expect.equals(3 - x++, -1); |
| 129 Expect.equals(x, 5); | 130 Expect.equals(x, 5); |
| 130 Expect.equals(4 + x--, 9); | 131 Expect.equals(4 + x--, 9); |
| 131 Expect.equals(x, 4); | 132 Expect.equals(x, 4); |
| 132 Expect.equals(4 - x--, 0); | 133 Expect.equals(4 - x--, 0); |
| 133 Expect.equals(x, 3); | 134 Expect.equals(x, 3); |
| 134 } | 135 } |
| 135 | 136 |
| 136 void testUnaryPrefixWithMultiply() { | 137 void testUnaryPrefixWithMultiply() { |
| 137 int x = 3; | 138 int x = 3; |
| 138 | 139 |
| 139 Expect.equals(++x * 3, 12); | 140 Expect.equals(++x * 3, 12); |
| 140 Expect.equals(x, 4); | 141 Expect.equals(x, 4); |
| 141 Expect.equals(++x / 5, 1.0); | 142 Expect.equals(++x / 5, 1.0); |
| 142 Expect.equals(x, 5); | 143 Expect.equals(x, 5); |
| 143 Expect.equals(--x * 3, 12); | 144 Expect.equals(--x * 3, 12); |
| 144 Expect.equals(x, 4); | 145 Expect.equals(x, 4); |
| 145 Expect.equals(--x / 4, 0.75); | 146 Expect.equals(--x / 4, 0.75); |
| 146 Expect.equals(x, 3); | 147 Expect.equals(x, 3); |
| 147 | 148 |
| 148 Expect.equals(3 * ++x, 12); | 149 Expect.equals(3 * ++x, 12); |
| 149 Expect.equals(x, 4); | 150 Expect.equals(x, 4); |
| 150 Expect.equals(5 / ++x, 1.0); | 151 Expect.equals(5 / ++x, 1.0); |
| 151 Expect.equals(x, 5); | 152 Expect.equals(x, 5); |
| 152 Expect.equals(3 * --x, 12); | 153 Expect.equals(3 * --x, 12); |
| 153 Expect.equals(x, 4); | 154 Expect.equals(x, 4); |
| 154 Expect.equals(6 / --x, 2.0); | 155 Expect.equals(6 / --x, 2.0); |
| 155 Expect.equals(x, 3); | 156 Expect.equals(x, 3); |
| 156 } | 157 } |
| 157 | 158 |
| 158 void testUnaryPostfixWithMultiply() { | 159 void testUnaryPostfixWithMultiply() { |
| 159 int x = 3; | 160 int x = 3; |
| 160 | 161 |
| 161 Expect.equals(x++ * 3, 9); | 162 Expect.equals(x++ * 3, 9); |
| 162 Expect.equals(x, 4); | 163 Expect.equals(x, 4); |
| 163 Expect.equals(x++ / 4, 1.0); | 164 Expect.equals(x++ / 4, 1.0); |
| 164 Expect.equals(x, 5); | 165 Expect.equals(x, 5); |
| 165 Expect.equals(x-- * 3, 15); | 166 Expect.equals(x-- * 3, 15); |
| 166 Expect.equals(x, 4); | 167 Expect.equals(x, 4); |
| 167 Expect.equals(x-- / 4, 1.0); | 168 Expect.equals(x-- / 4, 1.0); |
| 168 Expect.equals(x, 3); | 169 Expect.equals(x, 3); |
| 169 | 170 |
| 170 Expect.equals(3 * x++, 9); | 171 Expect.equals(3 * x++, 9); |
| 171 Expect.equals(x, 4); | 172 Expect.equals(x, 4); |
| 172 Expect.equals(3 / x++, 0.75); | 173 Expect.equals(3 / x++, 0.75); |
| 173 Expect.equals(x, 5); | 174 Expect.equals(x, 5); |
| 174 Expect.equals(4 * x--, 20); | 175 Expect.equals(4 * x--, 20); |
| 175 Expect.equals(x, 4); | 176 Expect.equals(x, 4); |
| 176 Expect.equals(4 / x--, 1.0); | 177 Expect.equals(4 / x--, 1.0); |
| 177 Expect.equals(x, 3); | 178 Expect.equals(x, 3); |
| 178 } | 179 } |
| 179 | |
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