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1 // Copyright (c) 2011, 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 // Dart test for new function type alias. | |
6 | |
7 class FunctionLiteralsTest { | |
8 | |
9 static void testMain() { | |
10 f(x) { return x * 2;} | |
11 f(42); // make sure it is parsed as a function call | |
12 Expect.equals(20, f(10)); | |
13 | |
14 int g(x) { return x * 2;} | |
15 g(42); // make sure it is parsed as a function call | |
16 Expect.equals(20, g(10)); | |
17 | |
18 h(x) { return x * 2;} | |
19 h(42); // make sure it is parsed as a function call | |
20 Expect.equals(20, h(10)); | |
21 | |
22 var a = int _(x) {return x + 2;}; | |
23 Expect.equals(7, a(5)); | |
24 | |
25 Expect.equals(10, apply((k) { return k << 1;}, 5)); | |
26 Expect.equals(20, apply((k) => k << 1, 10)); | |
27 | |
28 a = new A(3); | |
29 Expect.equals(-1, a.f); | |
30 Expect.equals(-3, a.f2); | |
31 | |
32 a = new A.n(5); | |
33 Expect.equals(-2, a.f); | |
34 Expect.equals(2, a.f2); | |
35 | |
36 Expect.equals(true, isOdd(5)); | |
37 Expect.equals(false, isOdd(8)); | |
38 | |
39 var b = new B(10); | |
40 Expect.equals(10, b.n); | |
41 Expect.equals(100, (b.f)(10)); | |
42 | |
43 b = new B.n(10); | |
44 Expect.equals(10, b.n); | |
45 Expect.equals(101, (b.f)(10)); | |
46 | |
47 int x = 0; | |
48 int y = 1; | |
49 // make sure this isn't parsed as a generic type | |
50 Expect.isTrue(x<y, "foo"); | |
51 } | |
52 } | |
53 | |
54 apply(f, n) { | |
55 return f(n); | |
56 } | |
57 | |
58 bool isOdd(b) => b % 2 == 1; | |
59 | |
60 class A { | |
61 int f; | |
62 int f2; | |
63 A(p) : f = apply((j) => 2 - j, p) { /* constr. body */ f2 = -p; } | |
64 A.n(p) : f = 1 + apply((j) => 2 - j, p) { /* constr. body */ f2 = -f; } | |
65 } | |
66 | |
67 class B { | |
68 var f; | |
69 int n; | |
70 B(z) : f = ((x) => x * x) { n = z; } | |
71 B.n(z) : f = ((x) { return x * x + 1; }) { n = z; } | |
72 } | |
73 | |
74 main() { | |
75 FunctionLiteralsTest.testMain(); | |
76 } | |
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