blob: 782f3fae8cfde72b52df311e3bb35ec8eb637e2c [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.
import 'package:expect/expect.dart';
main() {
// Ensure all classes are used.
final l = <dynamic>[Base(), A<int>(), B<int>(), I<int>()];
// Call `add(T)` with `T = A<int/String>` (the VM will not generate an
// optimized TTS for `A<int>` because there's two classes implementing
// `A`, both have type argument vector at a different offset, so it wouldn't
// know where to load it from)
// Populate the SubtypeTestCache with successfull `add(I<String>())`.
final x = <dynamic>[<A<String>>[]];
// Ensure type check fails if list type is now `A<int>`.
final y = <dynamic>[<A<int>>[]];
String exception = '';
try {
} catch (e) {
exception = e.toString();
Expect.isTrue(exception.contains('is not a subtype of'));
// Ensure depth-first preorder cid numbering will have the cid for [A] in the
// middle and ensure type argument vector will be second field.
class Base {
final int baseField = int.parse('1');
class A<T> extends Base {
T foo(T arg) => arg;
class B<T> extends A<T> {}
// Make another implementation of A<T> where type argument vector is first
// field.
class I<T> implements A<T> {
int get baseField => int.parse('2');
T foo(T arg) => arg;