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Side by Side Diff: tests/language/generic_methods_new_test.dart

Issue 3001803002: Migrate block 114 (and some of 113). (Closed)
Patch Set: Tweak app_jit status. Created 3 years, 3 months ago
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1 // Copyright (c) 2016, 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 // VMOptions=--generic-method-syntax --no-reify-generic-functions
6
7 /// Dart test on the usage of method type arguments in object creation. With
8 /// '--generic-method-syntax', the type argument is available at runtime,
9 /// but erased to `dynamic`.
10
11 library generic_methods_new_test;
12
13 import "package:expect/expect.dart";
14
15 class C<E> {
16 E e;
17 C(this.e);
18 }
19
20 C<T> f1<T>(T t) => new C<T>(t);
21
22 List<T> f2<T>(T t) => <T>[t];
23
24 Map<T, String> f3<T>(T t) => <T, String>{t: 'hi'};
25
26 main() {
27 C c = f1<int>(42);
28 List i = f2<String>("Hello!");
29 Expect.isTrue(c is C<int> && c is C<String>); // C<dynamic>.
30 Expect.isTrue(i is List<String> && i is List<int>); // List<dynamic>.
31 Expect.equals(c.e, 42);
32 Expect.equals(i[0], "Hello!");
33
34 Map m1 = f3<int>(1);
35 Expect.isTrue(m1 is Map<int, String> && m1 is Map<String, String>);
36 Expect.isFalse(m1 is Map<int, int>);
37 Expect.equals('hi', m1[1]);
38 }
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