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912005267d
Change-Id: I46be49b2effec3e38a3dc44cd45cfe736f77fa78 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/182680 Commit-Queue: Sigmund Cherem <sigmund@google.com> Reviewed-by: Joshua Litt <joshualitt@google.com> Reviewed-by: Nicholas Shahan <nshahan@google.com> Reviewed-by: Stephen Adams <sra@google.com>
60 lines
1.6 KiB
Dart
60 lines
1.6 KiB
Dart
// Copyright (c) 2020, 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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// This test is the same as 41449a_test.dart without forcing `-O0`.
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//
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// Regression test for passing type parameters through call-through stub.
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//
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// We use an abstract class with two implementations to avoid the optimizer
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// 'inlining' the call-through stub, so we are testing that the stub itself
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// passes through the type parameters.
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import 'package:expect/expect.dart';
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abstract class AAA {
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dynamic get foo;
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}
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class B1 implements AAA {
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final dynamic foo;
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B1(this.foo);
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}
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class B2 implements AAA {
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final dynamic _arr;
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B2(foo) : _arr = [foo];
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dynamic get foo => _arr.first;
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}
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class B3 implements AAA {
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final dynamic __foo;
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B3(this.__foo);
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dynamic get _foo => __foo;
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dynamic get foo => _foo;
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}
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@pragma('dart2js:noInline')
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test1<T>(AAA a, String expected) {
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// call-through getter 'foo' with one type argument.
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Expect.equals(expected, a.foo<T>());
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}
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@pragma('dart2js:noInline')
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test2<U, V>(AAA a, String expected) {
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// call-through getter 'foo' with two type arguments.
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Expect.equals(expected, a.foo<U, V>());
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}
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main() {
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test1<int>(B1(<P>() => '$P'), 'int');
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test1<num>(B2(<Q>() => '$Q'), 'num');
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test1<double>(B3(<R>() => '$R'), 'double');
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test2<int, num>(B1(<A, B>() => '$A $B'), 'int num');
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test2<num, int>(B2(<X, Y>() => '$X $Y'), 'num int');
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test2<double, String>(B3(<C, D>() => '$C $D'), 'double String');
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}
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