Joshua Litt
05ca544f15
Change-Id: Iaa0ca2b4f2d1b15f79ddca37834d3ed2497bc068 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/149242 Commit-Queue: Joshua Litt <joshualitt@google.com> Reviewed-by: Sigmund Cherem <sigmund@google.com>
49 lines
1.3 KiB
Dart
49 lines
1.3 KiB
Dart
// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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// @dart = 2.7
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// Derived from tests/dart2js_2/generic_type_error_message_test.
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import 'package:expect/expect.dart';
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/*class: Foo:*/
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class Foo<T extends num> {}
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/*class: Bar:*/
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class Bar<T extends num> {}
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/*spec:nnbd-off|prod:nnbd-off.class: Baz:explicit=[Baz<num>],needsArgs*/
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/*spec:nnbd-sdk|prod:nnbd-sdk.class: Baz:explicit=[Baz<num*>*],needsArgs*/
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class Baz<T extends num> {}
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@pragma('dart2js:disableFinal')
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main() {
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test(new Foo(), Foo, expectTypeArguments: false);
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// ignore: unnecessary_cast
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test(new Bar() as Bar<num>, Bar, expectTypeArguments: false);
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Baz<num> b = new Baz();
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dynamic c = b;
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test(c as Baz<num>, Baz, expectTypeArguments: true);
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}
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void test(dynamic object, Type type, {bool expectTypeArguments}) {
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bool caught = false;
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try {
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print(type);
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object as List<String>;
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} catch (e) {
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String expected = '$type';
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if (!expectTypeArguments) {
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expected = expected.substring(0, expected.indexOf('<'));
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}
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expected = "'$expected'";
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Expect.isTrue(e.toString().contains(expected),
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'Expected "$expected" in the message: $e');
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caught = true;
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print(e);
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}
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Expect.isTrue(caught);
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}
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