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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"; | |
6 | |
7 // Test inlining of assignments in parameter passing. If [StringScanner.charAt] | 5 // Test inlining of assignments in parameter passing. If [StringScanner.charAt] |
8 // is inlined, the argument expresion [: ++byteOffset :] should not be | 6 // is inlined, the argument expresion [: ++byteOffset :] should not be |
9 // duplicated. | 7 // duplicated. |
10 | 8 |
11 class StringScanner { | 9 class StringScanner { |
12 final String string; | 10 final String string; |
13 int byteOffset = -1; | 11 int byteOffset = -1; |
14 | 12 |
15 StringScanner(this.string); | 13 StringScanner(this.string); |
16 | 14 |
17 int nextByte() => charAt(++byteOffset); | 15 int nextByte() => charAt(++byteOffset); |
18 | 16 |
19 int charAt(index) | 17 int charAt(index) |
20 => (string.length > index) ? string.codeUnitAt(index) : -1; | 18 => (string.length > index) ? string.codeUnitAt(index) : -1; |
21 } | 19 } |
22 | 20 |
23 void main() { | 21 void main() { |
24 var scanner = new StringScanner('az9'); | 22 var scanner = new StringScanner('az9'); |
25 Expect.equals(0x61, scanner.nextByte()); // Expect a. | 23 Expect.equals(0x61, scanner.nextByte()); // Expect a. |
26 Expect.equals(0x7A, scanner.nextByte()); // Expect z. | 24 Expect.equals(0x7A, scanner.nextByte()); // Expect z. |
27 Expect.equals(0x39, scanner.nextByte()); // Expect 9. | 25 Expect.equals(0x39, scanner.nextByte()); // Expect 9. |
28 Expect.equals(-1, scanner.nextByte()); | 26 Expect.equals(-1, scanner.nextByte()); |
29 } | 27 } |
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