| // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| // @dart = 2.9 |
| |
| import "package:expect/expect.dart"; |
| |
| // Test inlining of assignments in parameter passing. If [StringScanner.charAt] |
| // is inlined, the argument expression `++byteOffset` should not be duplicated. |
| |
| class StringScanner { |
| final String string; |
| int byteOffset = -1; |
| |
| StringScanner(this.string); |
| |
| int nextByte() => charAt(++byteOffset); |
| |
| int charAt(index) => (string.length > index) ? string.codeUnitAt(index) : -1; |
| } |
| |
| void main() { |
| var scanner = new StringScanner('az9'); |
| Expect.equals(0x61, scanner.nextByte()); // Expect a. |
| Expect.equals(0x7A, scanner.nextByte()); // Expect z. |
| Expect.equals(0x39, scanner.nextByte()); // Expect 9. |
| Expect.equals(-1, scanner.nextByte()); |
| } |