blob: 915381d4b61f2670442aa722938b6e83fe6d79be [file] [log] [blame]
// Copyright (c) 2019, 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.
/// @assertion The default bound of generic type parameters is treated as
/// [Object?].
/// @description It seems like it is not possible to obtain the value of the
/// default bound at runtime, we can only obtain the result of instantiation to
/// bound. So the test checks that if generic function type parameter is not
/// clearly specified, it is treated as [dynamic] at runtime.
/// See also co19 issue #530.
/// @Issue 40367
/// @author
// Requirements=nnbd-strong
import "../../Utils/expect.dart";
dynamic i = null;
void test1<T>() {
Expect.equals(typeOf<dynamic>(), T);
T test2<T>() {
Expect.equals(typeOf<dynamic>(), T);
return i;
void test3<T>(T t) {
Expect.equals(typeOf<dynamic>(), T);
T test4<T>(T t) {
Expect.equals(typeOf<int?>(), T);
return i;
void test5<T1, T2, T3>() {
Expect.equals(typeOf<dynamic>(), T1);
Expect.equals(typeOf<dynamic>(), T2);
Expect.equals(typeOf<dynamic>(), T3);
void main() {
test3(1 as dynamic);
test4(11 as int?);