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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 static String string; | 10 static String string; |
13 int byteOffset = -1; | 11 int byteOffset = -1; |
14 | 12 |
15 int nextByte(foo) { | 13 int nextByte(foo) { |
16 if (foo) return -2; | 14 if (foo) return -2; |
17 return charAt(++byteOffset); | 15 return charAt(++byteOffset); |
18 } | 16 } |
19 | 17 |
20 static int charAt(index) | 18 static int charAt(index) |
21 => (string.length > index) ? string.codeUnitAt(index) : -1; | 19 => (string.length > index) ? string.codeUnitAt(index) : -1; |
22 } | 20 } |
23 | 21 |
24 void main() { | 22 void main() { |
25 var scanner = new StringScanner(); | 23 var scanner = new StringScanner(); |
26 StringScanner.string = 'az9'; | 24 StringScanner.string = 'az9'; |
27 Expect.equals(0x61, scanner.nextByte(false)); // Expect a. | 25 Expect.equals(0x61, scanner.nextByte(false)); // Expect a. |
28 Expect.equals(0x7A, scanner.nextByte(false)); // Expect z. | 26 Expect.equals(0x7A, scanner.nextByte(false)); // Expect z. |
29 Expect.equals(0x39, scanner.nextByte(false)); // Expect 9. | 27 Expect.equals(0x39, scanner.nextByte(false)); // Expect 9. |
30 Expect.equals(-1, scanner.nextByte(false)); | 28 Expect.equals(-1, scanner.nextByte(false)); |
31 } | 29 } |
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