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| 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 | |
| 3 // BSD-style license that can be found in the LICENSE file. | |
| 4 | |
| 5 main() { | |
| 6 final f0 = 42; | |
| 7 final f1; /// 01: compile-time error | |
| 8 final int f2 = 87; | |
| 9 final int f3; /// 02: compile-time error | |
| 10 Expect.equals(42, f0); | |
| 11 Expect.equals(87, f2); | |
| 12 | |
| 13 Expect.equals(42, F0); | |
| 14 Expect.equals(null, F1); /// 03: compile-time error | |
| 15 Expect.equals(87, F2); | |
| 16 Expect.equals(null, F3); /// 04: compile-time error | |
| 17 | |
| 18 Expect.isTrue(P0 is Point); | |
| 19 Expect.isTrue(P1 is int); /// 05: compile-time error | |
| 20 Expect.isTrue(P2 is Point); /// 06: compile-time error | |
| 21 Expect.isTrue(P3 is int); /// 07: compile-time error | |
| 22 | |
| 23 Expect.isTrue(A0 is int); | |
| 24 Expect.isTrue(A1 is int); | |
| 25 Expect.isTrue(A2 is int); /// 08: compile-time error | |
| 26 Expect.isTrue(A3 is int); /// 08: continued | |
| 27 | |
| 28 Expect.isTrue(C0.X is C1); | |
| 29 Expect.isTrue(C0.X.x is C1); /// 09: compile-time error | |
| 30 | |
| 31 Expect.equals("Hello 42", B2); | |
| 32 Expect.equals("42Hello", B3); /// 10: compile-time error | |
| 33 } | |
| 34 | |
| 35 final F0 = 42; | |
| 36 final F1; /// 03: continued | |
| 37 final int F2 = 87; | |
| 38 final int F3; /// 04: continued | |
| 39 | |
| 40 class Point { | |
| 41 final x, y; | |
| 42 const Point(this.x, this.y); | |
| 43 operator +(int other) => x; | |
| 44 } | |
| 45 | |
| 46 // Check that compile time expressions can include invocations of | |
| 47 // user-defined const constructors. | |
| 48 final P0 = const Point(0, 0); | |
| 49 final P1 = const Point(0, 0) + 1; /// 05: continued | |
| 50 final P2 = new Point(0, 0); /// 06: continued | |
| 51 final P3 = new Point(0, 0) + 1; /// 07: continued | |
| 52 | |
| 53 // Check that we cannot have cyclic references in compile time | |
| 54 // expressions. | |
| 55 final A0 = 42; | |
| 56 final A1 = A0 + 1; | |
| 57 final A2 = A3 + 1; /// 08: continued | |
| 58 final A3 = A2 + 1; /// 08: continued | |
| 59 | |
| 60 class C0 { | |
| 61 static final X = const C1(); | |
| 62 } | |
| 63 | |
| 64 class C1 { | |
| 65 const C1() | |
| 66 : x = C0.X /// 09: continued | |
| 67 ; | |
| 68 final x = null; | |
| 69 } | |
| 70 | |
| 71 // Check that sub-expressions of binary + are numeric. | |
| 72 final B0 = 42; | |
| 73 final B1 = "Hello"; | |
| 74 final B2 = "$B1 $B0"; | |
| 75 final B3 = B0 + B1; /// 10: continued | |
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