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Add tests about covariant parameters and inherited methods
Change-Id: Ibf2e4256605c1c479c6b244c44c1c424b0a2e6ca Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/208504 Reviewed-by: Nate Bosch <nbosch@google.com> Commit-Queue: Erik Ernst <eernst@google.com>
This commit is contained in:
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508
tests/language/covariant/override_covariant_both_test.dart
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508
tests/language/covariant/override_covariant_both_test.dart
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// Copyright (c) 2021, 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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// Test cases where an inherited method has a parameter `p0` that
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// corresponds to a parameter `p1` in the interface, where `p0` and `p1` are
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// both covariant-by-declaration.
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//
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// The library contains groups of classes depending on each other, and there
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// is no connection between the groups. Each group has a number (0 .. 17)
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// which is used at the end of most names in the group. For example, the first
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// group consists of the classes `B0`, `C0`, `DD0`, and `D0`. The group number
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// is shown as `#` in the remainder of this comment.
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//
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// In every group, the classes `C#` and `D#` are concrete leaf classes
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// exhibiting the situation of interest, that is, an inherited implementation
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// of the method `m` as well as a signature for `m` in the interface of the
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// class, with a parameter that has the above-mentioned properties.
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//
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// The parameter type in the implementation and the parameter type in the
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// method signature is (`num`, `num`), (`int`, `num`) and (`num`, `int`),
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// respectively, such that we test a covariant, contravariant and invariant
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// parameter type relationship in the overrides.
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//
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// In every group, the class `B#` contains the implementation of the method
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// `m` which is inherited. Class `A#` and mixin `M#`, present in some groups,
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// are used to provide the method implementation to `B#` using a mixin
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// application.
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//
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// The classes `BB#`, `I#`, `DD#`, `J#`, and `JJ#` are helper classes for `C#`
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// and `#D`.
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//
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// Class `BB#` is a subclass of `B#` and a superclass of `C#` and `D#`; it
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// introduces the method signature of `m` into the superclass chain.
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//
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// Class `DD#` is implemented by `D#`. Classes `I#`, `J#`, and `JJ#` are
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// implemented by `C#` or `D#`. Class `DD#` and `JJ#` ensure that `m` can be
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// called with an argument of type `Object`. Class `I#` and `J#` introduce the
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// method signature to `C#` or `D#` via an `implements` relation.
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//
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// Finally, `main` contains test cases where the dynamic type check is
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// incurred, using variable types and arguments that make the type check
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// fail whenever possible.
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//
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// The comments below about 'Superclass' and 'interface' indicate the way in
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// which the superclass of `C#` and `D#` is structured (it can be a regular
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// class or a mixin), and the way in which the superinterface that provides
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// the method signature is structured (it can be declared in `C#` or `D#`,
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// "immediate", or it can be obtained via an `extends` relation or via an
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// `implements` relation).
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import 'package:expect/expect.dart';
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// Superclass: regular, interface: immediate.
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class B0 {
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void m(covariant num x) {}
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}
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class C0 extends B0 {
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void m(covariant num x);
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}
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abstract class DD0 {
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void m(covariant Object x);
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}
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class D0 extends B0 implements DD0 {
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void m(num x);
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}
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class B1 {
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void m(covariant int x) {}
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}
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class C1 extends B1 {
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void m(covariant num x);
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}
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abstract class DD1 {
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void m(covariant Object x);
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}
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class D1 extends B1 implements DD1 {
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void m(num x);
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}
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class B2 {
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void m(covariant num x) {}
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}
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class C2 extends B2 {
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void m(covariant int x);
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}
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abstract class DD2 {
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void m(covariant Object x);
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}
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class D2 extends B2 implements DD2 {
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void m(int x);
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}
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// Superclass: regular, interface: extends.
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class B3 {
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void m(covariant num x) {}
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}
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abstract class BB3 extends B3 {
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void m(covariant num x);
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}
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class C3 extends BB3 {}
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abstract class DD3 {
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void m(covariant Object x);
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}
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class D3 extends BB3 implements DD3 {}
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class B4 {
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void m(covariant int x) {}
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}
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abstract class BB4 extends B4 {
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void m(covariant num x);
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}
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class C4 extends BB4 {}
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abstract class DD4 {
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void m(covariant Object x);
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}
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class D4 extends BB4 implements DD4 {}
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class B5 {
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void m(covariant num x) {}
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}
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abstract class BB5 extends B5 {
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void m(covariant int x);
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}
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class C5 extends BB5 {}
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abstract class DD5 {
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void m(covariant Object x);
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}
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class D5 extends BB5 implements DD5 {}
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// Superclass: regular, interface: implements.
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class B6 {
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void m(covariant num x) {}
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}
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abstract class I6 {
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void m(covariant num x);
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}
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class C6 extends B6 implements I6 {}
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abstract class JJ6 {
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void m(covariant Object x);
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}
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abstract class J6 {
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void m(num x);
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}
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class D6 extends B6 implements J6, JJ6 {}
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class B7 {
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void m(covariant int x) {}
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}
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abstract class I7 {
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void m(covariant num x);
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}
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class C7 extends B7 implements I7 {}
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abstract class JJ7 {
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void m(covariant Object x);
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}
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abstract class J7 {
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void m(num x);
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}
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class D7 extends B7 implements J7, JJ7 {}
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class B8 {
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void m(covariant num x) {}
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}
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abstract class I8 {
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void m(covariant int x);
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}
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class C8 extends B8 implements I8 {}
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abstract class JJ8 {
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void m(covariant Object x);
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}
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abstract class J8 {
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void m(int x);
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}
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class D8 extends B8 implements J8, JJ8 {}
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// Superclass: mixed-in, interface: immediate.
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class A9 {}
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mixin M9 {
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void m(covariant num x) {}
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}
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class B9 extends A9 with M9 {}
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class C9 extends B9 {
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void m(covariant num x);
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}
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abstract class DD9 {
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void m(covariant Object x);
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}
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class D9 extends B9 implements DD9 {
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void m(num x);
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}
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class A10 {}
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mixin M10 {
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void m(covariant int x) {}
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}
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class B10 extends A10 with M10 {}
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class C10 extends B10 {
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void m(covariant num x);
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}
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abstract class DD10 {
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void m(covariant Object x);
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}
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class D10 extends B10 implements DD10 {
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void m(num x);
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}
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class A11 {}
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mixin M11 {
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void m(covariant num x) {}
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}
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class B11 extends A11 with M11 {}
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class C11 extends B11 {
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void m(covariant int x);
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}
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abstract class DD11 {
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void m(covariant Object x);
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}
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class D11 extends B11 implements DD11 {
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void m(int x);
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}
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// Superclass: mixed-in, interface: extends.
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class A12 {}
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mixin M12 {
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void m(covariant num x) {}
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}
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class B12 extends A12 with M12 {}
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abstract class BB12 extends B12 {
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void m(covariant num x);
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}
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class C12 extends BB12 {}
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abstract class DD12 {
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void m(covariant Object x);
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}
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class D12 extends BB12 implements DD12 {}
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class A13 {}
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mixin M13 {
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void m(covariant int x) {}
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}
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class B13 extends A13 with M13 {}
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abstract class BB13 extends B13 {
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void m(covariant num x);
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}
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class C13 extends BB13 {}
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abstract class DD13 {
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void m(covariant Object x);
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}
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class D13 extends BB13 implements DD13 {}
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class A14 {}
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mixin M14 {
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void m(covariant num x) {}
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}
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class B14 extends A14 with M14 {}
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abstract class BB14 extends B14 {
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void m(covariant int x);
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}
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class C14 extends BB14 {}
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abstract class DD14 {
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void m(covariant Object x);
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}
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class D14 extends BB14 implements DD14 {}
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// Superclass: mixed-in, interface: implements.
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class A15 {}
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mixin M15 {
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void m(covariant num x) {}
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}
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class B15 extends A15 with M15 {}
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abstract class I15 {
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void m(covariant num x);
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}
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class C15 extends B15 implements I15 {}
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abstract class JJ15 {
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void m(covariant Object x);
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}
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abstract class J15 {
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void m(num x);
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}
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class D15 extends B15 implements J15, JJ15 {}
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class A16 {}
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mixin M16 {
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void m(covariant int x) {}
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}
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class B16 extends A16 with M16 {}
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abstract class I16 {
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void m(covariant num x);
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}
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class C16 extends B16 implements I16 {}
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abstract class JJ16 {
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void m(covariant Object x);
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}
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abstract class J16 {
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void m(num x);
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}
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class D16 extends B16 implements J16, JJ16 {}
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class A17 {}
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mixin M17 {
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void m(covariant num x) {}
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}
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class B17 extends A17 with M17 {}
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abstract class I17 {
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void m(covariant int x);
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}
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class C17 extends B17 implements I17 {}
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abstract class JJ17 {
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void m(covariant Object x);
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}
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abstract class J17 {
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void m(int x);
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}
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class D17 extends B17 implements J17, JJ17 {}
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void main() {
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// Demonstrate that each leaf class requires and has a dynamic
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// type check (which is most likely placed in a forwarding stub).
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const o = Object();
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B0 x0 = C0();
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x0.m(0.0);
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DD0 y0 = D0();
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Expect.throws(() => y0.m(o));
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C1 x1 = C1();
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Expect.throws(() => x1.m(1.1));
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DD1 y1 = D1();
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Expect.throws(() => y1.m(o));
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B2 x2 = C2();
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x2.m(2.2);
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DD2 y2 = D2();
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Expect.throws(() => y2.m(o));
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B3 x3 = C3();
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x3.m(3.3);
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DD3 y3 = D3();
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Expect.throws(() => y3.m(o));
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C4 x4 = C4();
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Expect.throws(() => x4.m(4.4));
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DD4 y4 = D4();
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Expect.throws(() => y4.m(o));
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B5 x5 = C5();
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x5.m(5.5);
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DD5 y5 = D5();
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Expect.throws(() => y5.m(o));
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B6 x6 = C6();
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x6.m(6.6);
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JJ6 y6 = D6();
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Expect.throws(() => y6.m(o));
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C7 x7 = C7();
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Expect.throws(() => x7.m(7.7));
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JJ7 y7 = D7();
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Expect.throws(() => y7.m(o));
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B8 x8 = C8();
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x8.m(8.8);
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JJ8 y8 = D8();
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Expect.throws(() => y8.m(o));
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B9 x9 = C9();
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x9.m(1.1);
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DD9 y9 = D9();
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Expect.throws(() => y9.m(o));
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C10 x10 = C10();
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Expect.throws(() => x10.m(10.10));
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DD10 y10 = D10();
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Expect.throws(() => y10.m(o));
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B11 x11 = C11();
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x11.m(11.11);
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DD11 y11 = D11();
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Expect.throws(() => y11.m(o));
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B12 x12 = C12();
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x12.m(12.12);
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DD12 y12 = D12();
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Expect.throws(() => y12.m(o));
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C13 x13 = C13();
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Expect.throws(() => x13.m(13.13));
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DD13 y13 = D13();
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Expect.throws(() => y13.m(o));
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B14 x14 = C14();
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x14.m(14.14);
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DD14 y14 = D14();
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Expect.throws(() => y14.m(o));
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B15 x15 = C15();
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x15.m(15.15);
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JJ15 y15 = D15();
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Expect.throws(() => y15.m(o));
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C16 x16 = C16();
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Expect.throws(() => x16.m(16.16));
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JJ16 y16 = D16();
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Expect.throws(() => y16.m(o));
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B17 x17 = C17();
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x17.m(17.17);
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JJ17 y17 = D17();
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Expect.throws(() => y17.m(o));
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}
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525
tests/language/covariant/override_covariant_class_test.dart
Normal file
525
tests/language/covariant/override_covariant_class_test.dart
Normal file
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// Copyright (c) 2021, 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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// Test error detection where an inherited method has a parameter `p0`
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// that corresponds to a parameter `p1` in the interface, where `p1` is
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// covariant-by-class and -by-declaration where needed, but `p0` is not.
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//
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// The library contains groups of classes depending on each other, and there
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// is no connection between the groups. Each group has a number (0 .. 17)
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// which is used at the end of most names in the group. For example, the first
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// group consists of the classes `B0`, `C0`, `DD0`, and `D0`. The group number
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// is shown as `#` in the remainder of this comment.
|
||||
//
|
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// In every group, the classes `C#` and `D#` are concrete leaf classes
|
||||
// exhibiting the situation of interest, that is, an inherited implementation
|
||||
// of the method `m` as well as a signature for `m` in the interface of the
|
||||
// class, with a parameter that has the above-mentioned properties.
|
||||
//
|
||||
// The parameter type in the implementation and the parameter type in the
|
||||
// method signature is (`num`, `num`), (`int`, `num`) and (`num`, `int`),
|
||||
// respectively, such that we test a covariant, contravariant and invariant
|
||||
// parameter type relationship in the overrides.
|
||||
//
|
||||
// In every group, the class `B#` contains the implementation of the method
|
||||
// `m` which is inherited. Class `A#` and mixin `M#`, present in some groups,
|
||||
// are used to provide the method implementation to `B#` using a mixin
|
||||
// application.
|
||||
//
|
||||
// The classes `BB#`, `I#`, `DD#`, `J#`, and `JJ#` are helper classes for `C#`
|
||||
// and `#D`.
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||||
//
|
||||
// Class `BB#` is a subclass of `B#` and a superclass of `C#` and `D#`; it
|
||||
// introduces the method signature of `m` into the superclass chain.
|
||||
//
|
||||
// Class `DD#` is implemented by `D#`. Classes `I#`, `J#`, and `JJ#` are
|
||||
// implemented by `C#` or `D#`. Class `DD#` and `JJ#` ensure that `m` can be
|
||||
// called with an argument of type `Object`. Class `I#` and `J#` introduce the
|
||||
// method signature to `C#` or `D#` via an `implements` relation.
|
||||
//
|
||||
// Finally, `main` contains test cases where the dynamic type check is
|
||||
// incurred, using variable types and arguments that make the type check
|
||||
// fail whenever possible.
|
||||
//
|
||||
// The comments below about 'Superclass' and 'interface' indicate the way in
|
||||
// which the superclass of `C#` and `D#` is structured (it can be a regular
|
||||
// class or a mixin), and the way in which the superinterface that provides
|
||||
// the method signature is structured (it can be declared in `C#` or `D#`,
|
||||
// "immediate", or it can be obtained via an `extends` relation or via an
|
||||
// `implements` relation).
|
||||
|
||||
import 'package:expect/expect.dart';
|
||||
|
||||
// Superclass: regular, interface: immediate.
|
||||
|
||||
class B0 {
|
||||
void m(num x) {}
|
||||
}
|
||||
|
||||
abstract class CC0<X extends num> extends B0 {
|
||||
void m(covariant X x);
|
||||
}
|
||||
|
||||
class C0 extends CC0<num> {}
|
||||
|
||||
abstract class DD0<X> {
|
||||
void m(X x);
|
||||
}
|
||||
|
||||
class D0 extends B0 implements DD0<num> {
|
||||
void m(num x);
|
||||
}
|
||||
|
||||
// Following the pattern, the classes `B1` .. `D1` are as shown below. They
|
||||
// are commented out, because the declaration `CC1.m` is an error, because
|
||||
// its parameter has a type which is neither a subtype nor a supertype of
|
||||
// the parameter type in `B1.m`. It is not useful to change the bound of `X`
|
||||
// in `CC1` to `int`, because that yields a set of classes with exactly the
|
||||
// same properties as those of `B0` .. `D0` (just change `num` to `int`
|
||||
// everywhere).
|
||||
//
|
||||
// class B1 {
|
||||
// void m(int x) {}
|
||||
// }
|
||||
//
|
||||
// abstract class CC1<X extends num> extends B1 {
|
||||
// void m(covariant X x);
|
||||
// }
|
||||
//
|
||||
// class C1 extends CC1<int> {}
|
||||
//
|
||||
// abstract class DD1<X> {
|
||||
// void m(X x);
|
||||
// }
|
||||
//
|
||||
// class D1 extends B1 implements DD1<int> {
|
||||
// void m(int x);
|
||||
// }
|
||||
|
||||
class B2 {
|
||||
void m(num x) {}
|
||||
}
|
||||
|
||||
abstract class CC2<X extends int> extends B2 {
|
||||
void m(covariant X x);
|
||||
}
|
||||
|
||||
class C2 extends CC2<int> {}
|
||||
|
||||
abstract class DD2<X> {
|
||||
void m(X x);
|
||||
}
|
||||
|
||||
class D2 extends B2 implements DD2<int> {
|
||||
void m(num x);
|
||||
}
|
||||
|
||||
// Superclass: regular, interface: extends.
|
||||
|
||||
class B3 {
|
||||
void m(num x) {}
|
||||
}
|
||||
|
||||
abstract class BB3<X extends num> extends B3 {
|
||||
void m(covariant X x);
|
||||
}
|
||||
|
||||
class C3 extends BB3<num> {}
|
||||
|
||||
abstract class DD3<X extends num> {
|
||||
void m(X x);
|
||||
}
|
||||
|
||||
class D3 extends BB3<num> implements DD3<num> {}
|
||||
|
||||
class B4 {
|
||||
void m(int x) {}
|
||||
}
|
||||
|
||||
abstract class BB4<X extends int> extends B4 {
|
||||
void m(covariant X x);
|
||||
}
|
||||
|
||||
class C4 extends BB4<int> {}
|
||||
|
||||
abstract class DD4<X extends num> {
|
||||
void m(X x);
|
||||
}
|
||||
|
||||
class D4 extends BB4<int> implements DD4<int> {}
|
||||
|
||||
class B5 {
|
||||
void m(num x) {}
|
||||
}
|
||||
|
||||
abstract class BB5<X extends int> extends B5 {
|
||||
void m(covariant X x);
|
||||
}
|
||||
|
||||
class C5 extends BB5<int> {}
|
||||
|
||||
abstract class DD5<X extends int> {
|
||||
void m(X x);
|
||||
}
|
||||
|
||||
class D5 extends BB5<int> implements DD5<int> {}
|
||||
|
||||
// Superclass: regular, interface: implements.
|
||||
|
||||
class B6 {
|
||||
void m(num x) {}
|
||||
}
|
||||
|
||||
abstract class I6<X extends num> {
|
||||
void m(X x);
|
||||
}
|
||||
|
||||
class C6 extends B6 implements I6<num> {}
|
||||
|
||||
abstract class JJ6 {
|
||||
void m(Object x);
|
||||
}
|
||||
|
||||
abstract class J6<X extends num> implements JJ6 {
|
||||
void m(covariant X x);
|
||||
}
|
||||
|
||||
class D6 extends B6 implements J6<num> {}
|
||||
|
||||
class B7 {
|
||||
void m(int x) {}
|
||||
}
|
||||
|
||||
abstract class I7<X extends num> {
|
||||
void m(X x);
|
||||
}
|
||||
|
||||
class C7 extends B7 implements I7<int> {}
|
||||
|
||||
abstract class JJ7 {
|
||||
void m(Object x);
|
||||
}
|
||||
|
||||
abstract class J7<X extends num> implements JJ7 {
|
||||
void m(covariant X x);
|
||||
}
|
||||
|
||||
class D7 extends B7 implements J7<int> {}
|
||||
|
||||
class B8 {
|
||||
void m(num x) {}
|
||||
}
|
||||
|
||||
abstract class I8<X extends int> {
|
||||
void m(X x);
|
||||
}
|
||||
|
||||
class C8 extends B8 implements I8<int> {}
|
||||
|
||||
abstract class JJ8 {
|
||||
void m(Object x);
|
||||
}
|
||||
|
||||
abstract class J8<X extends int> implements JJ8 {
|
||||
void m(covariant X x);
|
||||
}
|
||||
|
||||
class D8 extends B8 implements J8<int> {}
|
||||
|
||||
// Superclass: mixed-in, interface: immediate.
|
||||
|
||||
class A9 {}
|
||||
|
||||
mixin M9 {
|
||||
void m(num x) {}
|
||||
}
|
||||
|
||||
class B9 extends A9 with M9 {}
|
||||
|
||||
abstract class CC9<X extends num> extends B9 {
|
||||
void m(covariant X x);
|
||||
}
|
||||
|
||||
class C9 extends CC9<num> {}
|
||||
|
||||
abstract class DD9<X> {
|
||||
void m(X x);
|
||||
}
|
||||
|
||||
class D9 extends B9 implements DD9<num> {
|
||||
void m(num x);
|
||||
}
|
||||
|
||||
class A10 {}
|
||||
|
||||
mixin M10 {
|
||||
void m(int x) {}
|
||||
}
|
||||
|
||||
class B10 extends A10 with M10 {}
|
||||
|
||||
abstract class CC10<X extends int> extends B10 {
|
||||
void m(covariant X x);
|
||||
}
|
||||
|
||||
class C10 extends CC10<int> {}
|
||||
|
||||
abstract class DD10<X> {
|
||||
void m(X x);
|
||||
}
|
||||
|
||||
class D10 extends B10 implements DD10<int> {
|
||||
void m(int x);
|
||||
}
|
||||
|
||||
class A11 {}
|
||||
|
||||
mixin M11 {
|
||||
void m(num x) {}
|
||||
}
|
||||
|
||||
class B11 extends A11 with M11 {}
|
||||
|
||||
abstract class CC11<X extends int> extends B11 {
|
||||
void m(covariant X x);
|
||||
}
|
||||
|
||||
class C11 extends CC11<int> {}
|
||||
|
||||
abstract class DD11<X> {
|
||||
void m(X x);
|
||||
}
|
||||
|
||||
class D11 extends B11 implements DD11<int> {
|
||||
void m(num x);
|
||||
}
|
||||
|
||||
// Superclass: mixed-in, interface: extends.
|
||||
|
||||
class A12 {}
|
||||
|
||||
mixin M12 {
|
||||
void m(num x) {}
|
||||
}
|
||||
|
||||
class B12 extends A12 with M12 {}
|
||||
|
||||
abstract class BB12<X extends num> extends B12 {
|
||||
void m(covariant X x);
|
||||
}
|
||||
|
||||
class C12 extends BB12<num> {}
|
||||
|
||||
abstract class DD12<X extends num> {
|
||||
void m(X x);
|
||||
}
|
||||
|
||||
class D12 extends BB12<num> implements DD12<num> {}
|
||||
|
||||
class A13 {}
|
||||
|
||||
mixin M13 {
|
||||
void m(int x) {}
|
||||
}
|
||||
|
||||
class B13 extends A13 with M13 {}
|
||||
|
||||
abstract class BB13<X extends int> extends B13 {
|
||||
void m(covariant X x);
|
||||
}
|
||||
|
||||
class C13 extends BB13<int> {}
|
||||
|
||||
abstract class DD13<X extends num> {
|
||||
void m(X x);
|
||||
}
|
||||
|
||||
class D13 extends BB13<int> implements DD13<int> {}
|
||||
|
||||
class A14 {}
|
||||
|
||||
mixin M14 {
|
||||
void m(num x) {}
|
||||
}
|
||||
|
||||
class B14 extends A14 with M14 {}
|
||||
|
||||
abstract class BB14<X extends int> extends B14 {
|
||||
void m(covariant X x);
|
||||
}
|
||||
|
||||
class C14 extends BB14<int> {}
|
||||
|
||||
abstract class DD14<X extends int> {
|
||||
void m(X x);
|
||||
}
|
||||
|
||||
class D14 extends BB14<int> implements DD14<int> {}
|
||||
|
||||
// Superclass: mixed-in, interface: implements.
|
||||
|
||||
class A15 {}
|
||||
|
||||
mixin M15 {
|
||||
void m(num x) {}
|
||||
}
|
||||
|
||||
class B15 extends A15 with M15 {}
|
||||
|
||||
abstract class I15<X extends num> {
|
||||
void m(X x);
|
||||
}
|
||||
|
||||
class C15 extends B15 implements I15<num> {}
|
||||
|
||||
abstract class JJ15 {
|
||||
void m(Object x);
|
||||
}
|
||||
|
||||
abstract class J15<X extends num> implements JJ15 {
|
||||
void m(covariant X x);
|
||||
}
|
||||
|
||||
class D15 extends B15 implements J15<num> {}
|
||||
|
||||
class A16 {}
|
||||
|
||||
mixin M16 {
|
||||
void m(int x) {}
|
||||
}
|
||||
|
||||
class B16 extends A16 with M16 {}
|
||||
|
||||
abstract class I16<X extends num> {
|
||||
void m(X x);
|
||||
}
|
||||
|
||||
class C16 extends B16 implements I16<int> {}
|
||||
|
||||
abstract class JJ16 {
|
||||
void m(Object x);
|
||||
}
|
||||
|
||||
abstract class J16<X extends num> implements JJ16 {
|
||||
void m(covariant X x);
|
||||
}
|
||||
|
||||
class D16 extends B16 implements J16<int> {}
|
||||
|
||||
class A17 {}
|
||||
|
||||
mixin M17 {
|
||||
void m(num x) {}
|
||||
}
|
||||
|
||||
class B17 extends A17 with M17 {}
|
||||
|
||||
abstract class I17<X extends int> {
|
||||
void m(X x);
|
||||
}
|
||||
|
||||
class C17 extends B17 implements I17<int> {}
|
||||
|
||||
abstract class JJ17 {
|
||||
void m(Object x);
|
||||
}
|
||||
|
||||
abstract class J17<X extends int> implements JJ17 {
|
||||
void m(covariant X x);
|
||||
}
|
||||
|
||||
class D17 extends B17 implements J17<int> {}
|
||||
|
||||
void main() {
|
||||
// Demonstrate that each leaf class requires and has a dynamic
|
||||
// type check (which is most likely placed in a forwarding stub).
|
||||
const o = Object();
|
||||
|
||||
CC0<Object?> x0 = C0();
|
||||
Expect.throws(() => x0.m(o));
|
||||
DD0<Object?> y0 = D0();
|
||||
Expect.throws(() => y0.m(o));
|
||||
|
||||
// Group 1 was eliminated, see comment containing `class B1`.
|
||||
|
||||
CC2<Object?> x2 = C2();
|
||||
Expect.throws(() => x2.m(o));
|
||||
DD2<Object?> y2 = D2();
|
||||
Expect.throws(() => y2.m(o));
|
||||
|
||||
BB3<Object?> x3 = C3();
|
||||
Expect.throws(() => x3.m(o));
|
||||
DD3<Object?> y3 = D3();
|
||||
Expect.throws(() => y3.m(o));
|
||||
|
||||
BB4<Object?> x4 = C4();
|
||||
Expect.throws(() => x4.m(o));
|
||||
DD4<Object?> y4 = D4();
|
||||
Expect.throws(() => y4.m(o));
|
||||
|
||||
BB5<Object?> x5 = C5();
|
||||
Expect.throws(() => x5.m(o));
|
||||
DD5<Object?> y5 = D5();
|
||||
Expect.throws(() => y5.m(o));
|
||||
|
||||
I6<Object?> x6 = C6();
|
||||
Expect.throws(() => x6.m(o));
|
||||
JJ6 y6 = D6();
|
||||
Expect.throws(() => y6.m(o));
|
||||
|
||||
I7<Object?> x7 = C7();
|
||||
Expect.throws(() => x7.m(o));
|
||||
JJ7 y7 = D7();
|
||||
Expect.throws(() => y7.m(o));
|
||||
|
||||
I8<Object?> x8 = C8();
|
||||
Expect.throws(() => x8.m(o));
|
||||
JJ8 y8 = D8();
|
||||
Expect.throws(() => y8.m(o));
|
||||
|
||||
CC9<Object?> x9 = C9();
|
||||
Expect.throws(() => x9.m(o));
|
||||
DD9<Object?> y9 = D9();
|
||||
Expect.throws(() => y9.m(o));
|
||||
|
||||
CC10<Object?> x10 = C10();
|
||||
Expect.throws(() => x10.m(o));
|
||||
DD10<Object?> y10 = D10();
|
||||
Expect.throws(() => y10.m(o));
|
||||
|
||||
CC11<Object?> x11 = C11();
|
||||
Expect.throws(() => x11.m(o));
|
||||
DD11<Object?> y11 = D11();
|
||||
Expect.throws(() => y11.m(o));
|
||||
|
||||
BB12<Object?> x12 = C12();
|
||||
Expect.throws(() => x12.m(o));
|
||||
DD12<Object?> y12 = D12();
|
||||
Expect.throws(() => y12.m(o));
|
||||
|
||||
BB13<Object?> x13 = C13();
|
||||
Expect.throws(() => x13.m(o));
|
||||
DD13<Object?> y13 = D13();
|
||||
Expect.throws(() => y13.m(o));
|
||||
|
||||
BB14<Object?> x14 = C14();
|
||||
Expect.throws(() => x14.m(o));
|
||||
DD14<Object?> y14 = D14();
|
||||
Expect.throws(() => y14.m(o));
|
||||
|
||||
I15<Object?> x15 = C15();
|
||||
Expect.throws(() => x15.m(o));
|
||||
JJ15 y15 = D15();
|
||||
Expect.throws(() => y15.m(o));
|
||||
|
||||
I16<Object?> x16 = C16();
|
||||
Expect.throws(() => x16.m(o));
|
||||
JJ16 y16 = D16();
|
||||
Expect.throws(() => y16.m(o));
|
||||
|
||||
I17<Object?> x17 = C17();
|
||||
Expect.throws(() => x17.m(o));
|
||||
JJ17 y17 = D17();
|
||||
Expect.throws(() => y17.m(o));
|
||||
}
|
511
tests/language/covariant/override_covariant_interface_test.dart
Normal file
511
tests/language/covariant/override_covariant_interface_test.dart
Normal file
|
@ -0,0 +1,511 @@
|
|||
// Copyright (c) 2021, 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.
|
||||
|
||||
// Test the handling of a situation where an inherited method has a parameter
|
||||
// `p0` that corresponds to a parameter `p1` in the interface, where `p1`
|
||||
// is covariant-by-declaration, but `p0` is not. In this case, the inherited
|
||||
// method may need to be overridden by an implicitly induced stub, because
|
||||
// it must perform a dynamic type check on its parameter, and the inherited
|
||||
// method doesn't do that.
|
||||
//
|
||||
// The library contains groups of classes depending on each other, and there
|
||||
// is no connection between the groups. Each group has a number (0 .. 17)
|
||||
// which is used at the end of most names in the group. For example, the first
|
||||
// group consists of the classes `B0`, `C0`, `DD0`, and `D0`. The group number
|
||||
// is shown as `#` in the remainder of this comment.
|
||||
//
|
||||
// In every group, the classes `C#` and `D#` are concrete leaf classes
|
||||
// exhibiting the situation of interest, that is, an inherited implementation
|
||||
// of the method `m` as well as a signature for `m` in the interface of the
|
||||
// class, with a parameter that has the above-mentioned properties.
|
||||
//
|
||||
// The parameter type in the implementation and the parameter type in the
|
||||
// method signature is (`num`, `num`), (`int`, `num`) and (`num`, `int`),
|
||||
// respectively, such that we test a covariant, contravariant and invariant
|
||||
// parameter type relationship in the overrides.
|
||||
//
|
||||
// In every group, the class `B#` contains the implementation of the method
|
||||
// `m` which is inherited. Class `A#` and mixin `M#`, present in some groups,
|
||||
// are used to provide the method implementation to `B#` using a mixin
|
||||
// application.
|
||||
//
|
||||
// The classes `BB#`, `I#`, `DD#`, `J#`, and `JJ#` are helper classes for `C#`
|
||||
// and `#D`.
|
||||
//
|
||||
// Class `BB#` is a subclass of `B#` and a superclass of `C#` and `D#`; it
|
||||
// introduces the method signature of `m` into the superclass chain.
|
||||
//
|
||||
// Class `DD#` is implemented by `D#`. Classes `I#`, `J#`, and `JJ#` are
|
||||
// implemented by `C#` or `D#`. Class `DD#` and `JJ#` ensure that `m` can be
|
||||
// called with an argument of type `Object`. Class `I#` and `J#` introduce the
|
||||
// method signature to `C#` or `D#` via an `implements` relation.
|
||||
//
|
||||
// Finally, `main` contains test cases where the dynamic type check is
|
||||
// incurred, using variable types and arguments that make the type check
|
||||
// fail whenever possible.
|
||||
//
|
||||
// The comments below about 'Superclass' and 'interface' indicate the way in
|
||||
// which the superclass of `C#` and `D#` is structured (it can be a regular
|
||||
// class or a mixin), and the way in which the superinterface that provides
|
||||
// the method signature is structured (it can be declared in `C#` or `D#`,
|
||||
// "immediate", or it can be obtained via an `extends` relation or via an
|
||||
// `implements` relation).
|
||||
|
||||
import 'package:expect/expect.dart';
|
||||
|
||||
// Superclass: regular, interface: immediate.
|
||||
|
||||
class B0 {
|
||||
void m(num x) {}
|
||||
}
|
||||
|
||||
class C0 extends B0 {
|
||||
void m(covariant num x);
|
||||
}
|
||||
|
||||
abstract class DD0 {
|
||||
void m(Object x);
|
||||
}
|
||||
|
||||
class D0 extends B0 implements DD0 {
|
||||
void m(covariant num x);
|
||||
}
|
||||
|
||||
class B1 {
|
||||
void m(int x) {}
|
||||
}
|
||||
|
||||
class C1 extends B1 {
|
||||
void m(covariant num x);
|
||||
}
|
||||
|
||||
abstract class DD1 {
|
||||
void m(Object x);
|
||||
}
|
||||
|
||||
class D1 extends B1 implements DD1 {
|
||||
void m(covariant num x);
|
||||
}
|
||||
|
||||
class B2 {
|
||||
void m(num x) {}
|
||||
}
|
||||
|
||||
class C2 extends B2 {
|
||||
void m(covariant int x);
|
||||
}
|
||||
|
||||
abstract class DD2 {
|
||||
void m(Object x);
|
||||
}
|
||||
|
||||
class D2 extends B2 implements DD2 {
|
||||
void m(covariant int x);
|
||||
}
|
||||
|
||||
// Superclass: regular, interface: extends.
|
||||
|
||||
class B3 {
|
||||
void m(num x) {}
|
||||
}
|
||||
|
||||
abstract class BB3 extends B3 {
|
||||
void m(covariant num x);
|
||||
}
|
||||
|
||||
class C3 extends BB3 {}
|
||||
|
||||
abstract class DD3 {
|
||||
void m(Object x);
|
||||
}
|
||||
|
||||
class D3 extends BB3 implements DD3 {}
|
||||
|
||||
class B4 {
|
||||
void m(int x) {}
|
||||
}
|
||||
|
||||
abstract class BB4 extends B4 {
|
||||
void m(covariant num x);
|
||||
}
|
||||
|
||||
class C4 extends BB4 {}
|
||||
|
||||
abstract class DD4 {
|
||||
void m(Object x);
|
||||
}
|
||||
|
||||
class D4 extends BB4 implements DD4 {}
|
||||
|
||||
class B5 {
|
||||
void m(num x) {}
|
||||
}
|
||||
|
||||
abstract class BB5 extends B5 {
|
||||
void m(covariant int x);
|
||||
}
|
||||
|
||||
class C5 extends BB5 {}
|
||||
|
||||
abstract class DD5 {
|
||||
void m(Object x);
|
||||
}
|
||||
|
||||
class D5 extends BB5 implements DD5 {}
|
||||
|
||||
// Superclass: regular, interface: implements.
|
||||
|
||||
class B6 {
|
||||
void m(num x) {}
|
||||
}
|
||||
|
||||
abstract class I6 {
|
||||
void m(covariant num x);
|
||||
}
|
||||
|
||||
class C6 extends B6 implements I6 {}
|
||||
|
||||
abstract class JJ6 {
|
||||
void m(Object x);
|
||||
}
|
||||
|
||||
abstract class J6 implements JJ6 {
|
||||
void m(covariant num x);
|
||||
}
|
||||
|
||||
class D6 extends B6 implements J6 {}
|
||||
|
||||
class B7 {
|
||||
void m(int x) {}
|
||||
}
|
||||
|
||||
abstract class I7 {
|
||||
void m(covariant num x);
|
||||
}
|
||||
|
||||
class C7 extends B7 implements I7 {}
|
||||
|
||||
abstract class JJ7 {
|
||||
void m(Object x);
|
||||
}
|
||||
|
||||
abstract class J7 implements JJ7 {
|
||||
void m(covariant num x);
|
||||
}
|
||||
|
||||
class D7 extends B7 implements J7 {}
|
||||
|
||||
class B8 {
|
||||
void m(num x) {}
|
||||
}
|
||||
|
||||
abstract class I8 {
|
||||
void m(covariant int x);
|
||||
}
|
||||
|
||||
class C8 extends B8 implements I8 {}
|
||||
|
||||
abstract class JJ8 {
|
||||
void m(Object x);
|
||||
}
|
||||
|
||||
abstract class J8 implements JJ8 {
|
||||
void m(covariant int x);
|
||||
}
|
||||
|
||||
class D8 extends B8 implements J8 {}
|
||||
|
||||
// Superclass: mixed-in, interface: immediate.
|
||||
|
||||
class A9 {}
|
||||
|
||||
mixin M9 {
|
||||
void m(num x) {}
|
||||
}
|
||||
|
||||
class B9 extends A9 with M9 {}
|
||||
|
||||
class C9 extends B9 {
|
||||
void m(covariant num x);
|
||||
}
|
||||
|
||||
abstract class DD9 {
|
||||
void m(Object x);
|
||||
}
|
||||
|
||||
class D9 extends B9 implements DD9 {
|
||||
void m(covariant num x);
|
||||
}
|
||||
|
||||
class A10 {}
|
||||
|
||||
mixin M10 {
|
||||
void m(int x) {}
|
||||
}
|
||||
|
||||
class B10 extends A10 with M10 {}
|
||||
|
||||
class C10 extends B10 {
|
||||
void m(covariant num x);
|
||||
}
|
||||
|
||||
abstract class DD10 {
|
||||
void m(Object x);
|
||||
}
|
||||
|
||||
class D10 extends B10 implements DD10 {
|
||||
void m(covariant num x);
|
||||
}
|
||||
|
||||
class A11 {}
|
||||
|
||||
mixin M11 {
|
||||
void m(num x) {}
|
||||
}
|
||||
|
||||
class B11 extends A11 with M11 {}
|
||||
|
||||
class C11 extends B11 {
|
||||
void m(covariant int x);
|
||||
}
|
||||
|
||||
abstract class DD11 {
|
||||
void m(Object x);
|
||||
}
|
||||
|
||||
class D11 extends B11 implements DD11 {
|
||||
void m(covariant int x);
|
||||
}
|
||||
|
||||
// Superclass: mixed-in, interface: extends.
|
||||
|
||||
class A12 {}
|
||||
|
||||
mixin M12 {
|
||||
void m(num x) {}
|
||||
}
|
||||
|
||||
class B12 extends A12 with M12 {}
|
||||
|
||||
abstract class BB12 extends B12 {
|
||||
void m(covariant num x);
|
||||
}
|
||||
|
||||
class C12 extends BB12 {}
|
||||
|
||||
abstract class DD12 {
|
||||
void m(Object x);
|
||||
}
|
||||
|
||||
class D12 extends BB12 implements DD12 {}
|
||||
|
||||
class A13 {}
|
||||
|
||||
mixin M13 {
|
||||
void m(int x) {}
|
||||
}
|
||||
|
||||
class B13 extends A13 with M13 {}
|
||||
|
||||
abstract class BB13 extends B13 {
|
||||
void m(covariant num x);
|
||||
}
|
||||
|
||||
class C13 extends BB13 {}
|
||||
|
||||
abstract class DD13 {
|
||||
void m(Object x);
|
||||
}
|
||||
|
||||
class D13 extends BB13 implements DD13 {}
|
||||
|
||||
class A14 {}
|
||||
|
||||
mixin M14 {
|
||||
void m(num x) {}
|
||||
}
|
||||
|
||||
class B14 extends A14 with M14 {}
|
||||
|
||||
abstract class BB14 extends B14 {
|
||||
void m(covariant int x);
|
||||
}
|
||||
|
||||
class C14 extends BB14 {}
|
||||
|
||||
abstract class DD14 {
|
||||
void m(Object x);
|
||||
}
|
||||
|
||||
class D14 extends BB14 implements DD14 {}
|
||||
|
||||
// Superclass: mixed-in, interface: implements.
|
||||
|
||||
class A15 {}
|
||||
|
||||
mixin M15 {
|
||||
void m(num x) {}
|
||||
}
|
||||
|
||||
class B15 extends A15 with M15 {}
|
||||
|
||||
abstract class I15 {
|
||||
void m(covariant num x);
|
||||
}
|
||||
|
||||
class C15 extends B15 implements I15 {}
|
||||
|
||||
abstract class JJ15 {
|
||||
void m(Object x);
|
||||
}
|
||||
|
||||
abstract class J15 implements JJ15 {
|
||||
void m(covariant num x);
|
||||
}
|
||||
|
||||
class D15 extends B15 implements J15 {}
|
||||
|
||||
class A16 {}
|
||||
|
||||
mixin M16 {
|
||||
void m(int x) {}
|
||||
}
|
||||
|
||||
class B16 extends A16 with M16 {}
|
||||
|
||||
abstract class I16 {
|
||||
void m(covariant num x);
|
||||
}
|
||||
|
||||
class C16 extends B16 implements I16 {}
|
||||
|
||||
abstract class JJ16 {
|
||||
void m(Object x);
|
||||
}
|
||||
|
||||
abstract class J16 implements JJ16 {
|
||||
void m(covariant num x);
|
||||
}
|
||||
|
||||
class D16 extends B16 implements J16 {}
|
||||
|
||||
class A17 {}
|
||||
|
||||
mixin M17 {
|
||||
void m(num x) {}
|
||||
}
|
||||
|
||||
class B17 extends A17 with M17 {}
|
||||
|
||||
abstract class I17 {
|
||||
void m(covariant int x);
|
||||
}
|
||||
|
||||
class C17 extends B17 implements I17 {}
|
||||
|
||||
abstract class JJ17 {
|
||||
void m(Object x);
|
||||
}
|
||||
|
||||
abstract class J17 implements JJ17 {
|
||||
void m(covariant int x);
|
||||
}
|
||||
|
||||
class D17 extends B17 implements J17 {}
|
||||
|
||||
void main() {
|
||||
// Demonstrate that each leaf class requires and has a dynamic
|
||||
// type check (which is most likely placed in a forwarding stub).
|
||||
const o = Object();
|
||||
|
||||
B0 x0 = C0();
|
||||
x0.m(0.0);
|
||||
DD0 y0 = D0();
|
||||
Expect.throws(() => y0.m(o));
|
||||
|
||||
C1 x1 = C1();
|
||||
Expect.throws(() => x1.m(1.1));
|
||||
DD1 y1 = D1();
|
||||
Expect.throws(() => y1.m(o));
|
||||
|
||||
B2 x2 = C2();
|
||||
x2.m(2.2);
|
||||
DD2 y2 = D2();
|
||||
Expect.throws(() => y2.m(o));
|
||||
|
||||
B3 x3 = C3();
|
||||
x3.m(3.3);
|
||||
DD3 y3 = D3();
|
||||
Expect.throws(() => y3.m(o));
|
||||
|
||||
C4 x4 = C4();
|
||||
Expect.throws(() => x4.m(4.4));
|
||||
DD4 y4 = D4();
|
||||
Expect.throws(() => y4.m(o));
|
||||
|
||||
B5 x5 = C5();
|
||||
x5.m(5.5);
|
||||
DD5 y5 = D5();
|
||||
Expect.throws(() => y5.m(o));
|
||||
|
||||
B6 x6 = C6();
|
||||
x6.m(6.6);
|
||||
JJ6 y6 = D6();
|
||||
Expect.throws(() => y6.m(o));
|
||||
|
||||
C7 x7 = C7();
|
||||
Expect.throws(() => x7.m(7.7));
|
||||
JJ7 y7 = D7();
|
||||
Expect.throws(() => y7.m(o));
|
||||
|
||||
B8 x8 = C8();
|
||||
x8.m(8.8);
|
||||
JJ8 y8 = D8();
|
||||
Expect.throws(() => y8.m(o));
|
||||
|
||||
B9 x9 = C9();
|
||||
x9.m(1.1);
|
||||
DD9 y9 = D9();
|
||||
Expect.throws(() => y9.m(o));
|
||||
|
||||
C10 x10 = C10();
|
||||
Expect.throws(() => x10.m(10.10));
|
||||
DD10 y10 = D10();
|
||||
Expect.throws(() => y10.m(o));
|
||||
|
||||
B11 x11 = C11();
|
||||
x11.m(11.11);
|
||||
DD11 y11 = D11();
|
||||
Expect.throws(() => y11.m(o));
|
||||
|
||||
B12 x12 = C12();
|
||||
x12.m(12.12);
|
||||
DD12 y12 = D12();
|
||||
Expect.throws(() => y12.m(o));
|
||||
|
||||
C13 x13 = C13();
|
||||
Expect.throws(() => x13.m(13.13));
|
||||
DD13 y13 = D13();
|
||||
Expect.throws(() => y13.m(o));
|
||||
|
||||
B14 x14 = C14();
|
||||
x14.m(14.14);
|
||||
DD14 y14 = D14();
|
||||
Expect.throws(() => y14.m(o));
|
||||
|
||||
B15 x15 = C15();
|
||||
x15.m(15.15);
|
||||
JJ15 y15 = D15();
|
||||
Expect.throws(() => y15.m(o));
|
||||
|
||||
C16 x16 = C16();
|
||||
Expect.throws(() => x16.m(16.16));
|
||||
JJ16 y16 = D16();
|
||||
Expect.throws(() => y16.m(o));
|
||||
|
||||
B17 x17 = C17();
|
||||
x17.m(17.17);
|
||||
JJ17 y17 = D17();
|
||||
Expect.throws(() => y17.m(o));
|
||||
}
|
508
tests/language/covariant/override_covariant_superclass_test.dart
Normal file
508
tests/language/covariant/override_covariant_superclass_test.dart
Normal file
|
@ -0,0 +1,508 @@
|
|||
// Copyright (c) 2021, 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.
|
||||
|
||||
// Test cases where an inherited method has a parameter `p0` that
|
||||
// corresponds to a parameter `p1` in the interface, where `p0` is
|
||||
// covariant-by-declaration, but `p1` is not.
|
||||
//
|
||||
// The library contains groups of classes depending on each other, and there
|
||||
// is no connection between the groups. Each group has a number (0 .. 17)
|
||||
// which is used at the end of most names in the group. For example, the first
|
||||
// group consists of the classes `B0`, `C0`, `DD0`, and `D0`. The group number
|
||||
// is shown as `#` in the remainder of this comment.
|
||||
//
|
||||
// In every group, the classes `C#` and `D#` are concrete leaf classes
|
||||
// exhibiting the situation of interest, that is, an inherited implementation
|
||||
// of the method `m` as well as a signature for `m` in the interface of the
|
||||
// class, with a parameter that has the above-mentioned properties.
|
||||
//
|
||||
// The parameter type in the implementation and the parameter type in the
|
||||
// method signature is (`num`, `num`), (`int`, `num`) and (`num`, `int`),
|
||||
// respectively, such that we test a covariant, contravariant and invariant
|
||||
// parameter type relationship in the overrides.
|
||||
//
|
||||
// In every group, the class `B#` contains the implementation of the method
|
||||
// `m` which is inherited. Class `A#` and mixin `M#`, present in some groups,
|
||||
// are used to provide the method implementation to `B#` using a mixin
|
||||
// application.
|
||||
//
|
||||
// The classes `BB#`, `I#`, `DD#`, `J#`, and `JJ#` are helper classes for `C#`
|
||||
// and `#D`.
|
||||
//
|
||||
// Class `BB#` is a subclass of `B#` and a superclass of `C#` and `D#`; it
|
||||
// introduces the method signature of `m` into the superclass chain.
|
||||
//
|
||||
// Class `DD#` is implemented by `D#`. Classes `I#`, `J#`, and `JJ#` are
|
||||
// implemented by `C#` or `D#`. Class `DD#` and `JJ#` ensure that `m` can be
|
||||
// called with an argument of type `Object`. Class `I#` and `J#` introduce the
|
||||
// method signature to `C#` or `D#` via an `implements` relation.
|
||||
//
|
||||
// Finally, `main` contains test cases where the dynamic type check is
|
||||
// incurred, using variable types and arguments that make the type check
|
||||
// fail whenever possible.
|
||||
//
|
||||
// The comments below about 'Superclass' and 'interface' indicate the way in
|
||||
// which the superclass of `C#` and `D#` is structured (it can be a regular
|
||||
// class or a mixin), and the way in which the superinterface that provides
|
||||
// the method signature is structured (it can be declared in `C#` or `D#`,
|
||||
// "immediate", or it can be obtained via an `extends` relation or via an
|
||||
// `implements` relation).
|
||||
|
||||
import 'package:expect/expect.dart';
|
||||
|
||||
// Superclass: regular, interface: immediate.
|
||||
|
||||
class B0 {
|
||||
void m(covariant num x) {}
|
||||
}
|
||||
|
||||
class C0 extends B0 {
|
||||
void m(num x);
|
||||
}
|
||||
|
||||
abstract class DD0 {
|
||||
void m(Object x);
|
||||
}
|
||||
|
||||
class D0 extends B0 implements DD0 {
|
||||
void m(num x);
|
||||
}
|
||||
|
||||
class B1 {
|
||||
void m(covariant int x) {}
|
||||
}
|
||||
|
||||
class C1 extends B1 {
|
||||
void m(num x);
|
||||
}
|
||||
|
||||
abstract class DD1 {
|
||||
void m(Object x);
|
||||
}
|
||||
|
||||
class D1 extends B1 implements DD1 {
|
||||
void m(num x);
|
||||
}
|
||||
|
||||
class B2 {
|
||||
void m(covariant num x) {}
|
||||
}
|
||||
|
||||
class C2 extends B2 {
|
||||
void m(int x);
|
||||
}
|
||||
|
||||
abstract class DD2 {
|
||||
void m(Object x);
|
||||
}
|
||||
|
||||
class D2 extends B2 implements DD2 {
|
||||
void m(int x);
|
||||
}
|
||||
|
||||
// Superclass: regular, interface: extends.
|
||||
|
||||
class B3 {
|
||||
void m(covariant num x) {}
|
||||
}
|
||||
|
||||
abstract class BB3 extends B3 {
|
||||
void m(num x);
|
||||
}
|
||||
|
||||
class C3 extends BB3 {}
|
||||
|
||||
abstract class DD3 {
|
||||
void m(Object x);
|
||||
}
|
||||
|
||||
class D3 extends BB3 implements DD3 {}
|
||||
|
||||
class B4 {
|
||||
void m(covariant int x) {}
|
||||
}
|
||||
|
||||
abstract class BB4 extends B4 {
|
||||
void m(num x);
|
||||
}
|
||||
|
||||
class C4 extends BB4 {}
|
||||
|
||||
abstract class DD4 {
|
||||
void m(Object x);
|
||||
}
|
||||
|
||||
class D4 extends BB4 implements DD4 {}
|
||||
|
||||
class B5 {
|
||||
void m(covariant num x) {}
|
||||
}
|
||||
|
||||
abstract class BB5 extends B5 {
|
||||
void m(int x);
|
||||
}
|
||||
|
||||
class C5 extends BB5 {}
|
||||
|
||||
abstract class DD5 {
|
||||
void m(Object x);
|
||||
}
|
||||
|
||||
class D5 extends BB5 implements DD5 {}
|
||||
|
||||
// Superclass: regular, interface: implements.
|
||||
|
||||
class B6 {
|
||||
void m(covariant num x) {}
|
||||
}
|
||||
|
||||
abstract class I6 {
|
||||
void m(num x);
|
||||
}
|
||||
|
||||
class C6 extends B6 implements I6 {}
|
||||
|
||||
abstract class JJ6 {
|
||||
void m(Object x);
|
||||
}
|
||||
|
||||
abstract class J6 {
|
||||
void m(num x);
|
||||
}
|
||||
|
||||
class D6 extends B6 implements J6, JJ6 {}
|
||||
|
||||
class B7 {
|
||||
void m(covariant int x) {}
|
||||
}
|
||||
|
||||
abstract class I7 {
|
||||
void m(num x);
|
||||
}
|
||||
|
||||
class C7 extends B7 implements I7 {}
|
||||
|
||||
abstract class JJ7 {
|
||||
void m(Object x);
|
||||
}
|
||||
|
||||
abstract class J7 {
|
||||
void m(num x);
|
||||
}
|
||||
|
||||
class D7 extends B7 implements J7, JJ7 {}
|
||||
|
||||
class B8 {
|
||||
void m(covariant num x) {}
|
||||
}
|
||||
|
||||
abstract class I8 {
|
||||
void m(int x);
|
||||
}
|
||||
|
||||
class C8 extends B8 implements I8 {}
|
||||
|
||||
abstract class JJ8 {
|
||||
void m(Object x);
|
||||
}
|
||||
|
||||
abstract class J8 {
|
||||
void m(int x);
|
||||
}
|
||||
|
||||
class D8 extends B8 implements J8, JJ8 {}
|
||||
|
||||
// Superclass: mixed-in, interface: immediate.
|
||||
|
||||
class A9 {}
|
||||
|
||||
mixin M9 {
|
||||
void m(covariant num x) {}
|
||||
}
|
||||
|
||||
class B9 extends A9 with M9 {}
|
||||
|
||||
class C9 extends B9 {
|
||||
void m(num x);
|
||||
}
|
||||
|
||||
abstract class DD9 {
|
||||
void m(Object x);
|
||||
}
|
||||
|
||||
class D9 extends B9 implements DD9 {
|
||||
void m(num x);
|
||||
}
|
||||
|
||||
class A10 {}
|
||||
|
||||
mixin M10 {
|
||||
void m(covariant int x) {}
|
||||
}
|
||||
|
||||
class B10 extends A10 with M10 {}
|
||||
|
||||
class C10 extends B10 {
|
||||
void m(num x);
|
||||
}
|
||||
|
||||
abstract class DD10 {
|
||||
void m(Object x);
|
||||
}
|
||||
|
||||
class D10 extends B10 implements DD10 {
|
||||
void m(num x);
|
||||
}
|
||||
|
||||
class A11 {}
|
||||
|
||||
mixin M11 {
|
||||
void m(covariant num x) {}
|
||||
}
|
||||
|
||||
class B11 extends A11 with M11 {}
|
||||
|
||||
class C11 extends B11 {
|
||||
void m(int x);
|
||||
}
|
||||
|
||||
abstract class DD11 {
|
||||
void m(Object x);
|
||||
}
|
||||
|
||||
class D11 extends B11 implements DD11 {
|
||||
void m(int x);
|
||||
}
|
||||
|
||||
// Superclass: mixed-in, interface: extends.
|
||||
|
||||
class A12 {}
|
||||
|
||||
mixin M12 {
|
||||
void m(covariant num x) {}
|
||||
}
|
||||
|
||||
class B12 extends A12 with M12 {}
|
||||
|
||||
abstract class BB12 extends B12 {
|
||||
void m(num x);
|
||||
}
|
||||
|
||||
class C12 extends BB12 {}
|
||||
|
||||
abstract class DD12 {
|
||||
void m(Object x);
|
||||
}
|
||||
|
||||
class D12 extends BB12 implements DD12 {}
|
||||
|
||||
class A13 {}
|
||||
|
||||
mixin M13 {
|
||||
void m(covariant int x) {}
|
||||
}
|
||||
|
||||
class B13 extends A13 with M13 {}
|
||||
|
||||
abstract class BB13 extends B13 {
|
||||
void m(num x);
|
||||
}
|
||||
|
||||
class C13 extends BB13 {}
|
||||
|
||||
abstract class DD13 {
|
||||
void m(Object x);
|
||||
}
|
||||
|
||||
class D13 extends BB13 implements DD13 {}
|
||||
|
||||
class A14 {}
|
||||
|
||||
mixin M14 {
|
||||
void m(covariant num x) {}
|
||||
}
|
||||
|
||||
class B14 extends A14 with M14 {}
|
||||
|
||||
abstract class BB14 extends B14 {
|
||||
void m(int x);
|
||||
}
|
||||
|
||||
class C14 extends BB14 {}
|
||||
|
||||
abstract class DD14 {
|
||||
void m(Object x);
|
||||
}
|
||||
|
||||
class D14 extends BB14 implements DD14 {}
|
||||
|
||||
// Superclass: mixed-in, interface: implements.
|
||||
|
||||
class A15 {}
|
||||
|
||||
mixin M15 {
|
||||
void m(covariant num x) {}
|
||||
}
|
||||
|
||||
class B15 extends A15 with M15 {}
|
||||
|
||||
abstract class I15 {
|
||||
void m(num x);
|
||||
}
|
||||
|
||||
class C15 extends B15 implements I15 {}
|
||||
|
||||
abstract class JJ15 {
|
||||
void m(Object x);
|
||||
}
|
||||
|
||||
abstract class J15 {
|
||||
void m(num x);
|
||||
}
|
||||
|
||||
class D15 extends B15 implements J15, JJ15 {}
|
||||
|
||||
class A16 {}
|
||||
|
||||
mixin M16 {
|
||||
void m(covariant int x) {}
|
||||
}
|
||||
|
||||
class B16 extends A16 with M16 {}
|
||||
|
||||
abstract class I16 {
|
||||
void m(num x);
|
||||
}
|
||||
|
||||
class C16 extends B16 implements I16 {}
|
||||
|
||||
abstract class JJ16 {
|
||||
void m(Object x);
|
||||
}
|
||||
|
||||
abstract class J16 {
|
||||
void m(num x);
|
||||
}
|
||||
|
||||
class D16 extends B16 implements J16, JJ16 {}
|
||||
|
||||
class A17 {}
|
||||
|
||||
mixin M17 {
|
||||
void m(covariant num x) {}
|
||||
}
|
||||
|
||||
class B17 extends A17 with M17 {}
|
||||
|
||||
abstract class I17 {
|
||||
void m(int x);
|
||||
}
|
||||
|
||||
class C17 extends B17 implements I17 {}
|
||||
|
||||
abstract class JJ17 {
|
||||
void m(Object x);
|
||||
}
|
||||
|
||||
abstract class J17 {
|
||||
void m(int x);
|
||||
}
|
||||
|
||||
class D17 extends B17 implements J17, JJ17 {}
|
||||
|
||||
void main() {
|
||||
// Demonstrate that each leaf class requires and has a dynamic
|
||||
// type check (which is most likely placed in a forwarding stub).
|
||||
const o = Object();
|
||||
|
||||
B0 x0 = C0();
|
||||
x0.m(0.0);
|
||||
DD0 y0 = D0();
|
||||
Expect.throws(() => y0.m(o));
|
||||
|
||||
C1 x1 = C1();
|
||||
Expect.throws(() => x1.m(1.1));
|
||||
DD1 y1 = D1();
|
||||
Expect.throws(() => y1.m(o));
|
||||
|
||||
B2 x2 = C2();
|
||||
x2.m(2.2);
|
||||
DD2 y2 = D2();
|
||||
Expect.throws(() => y2.m(o));
|
||||
|
||||
B3 x3 = C3();
|
||||
x3.m(3.3);
|
||||
DD3 y3 = D3();
|
||||
Expect.throws(() => y3.m(o));
|
||||
|
||||
C4 x4 = C4();
|
||||
Expect.throws(() => x4.m(4.4));
|
||||
DD4 y4 = D4();
|
||||
Expect.throws(() => y4.m(o));
|
||||
|
||||
B5 x5 = C5();
|
||||
x5.m(5.5);
|
||||
DD5 y5 = D5();
|
||||
Expect.throws(() => y5.m(o));
|
||||
|
||||
B6 x6 = C6();
|
||||
x6.m(6.6);
|
||||
JJ6 y6 = D6();
|
||||
Expect.throws(() => y6.m(o));
|
||||
|
||||
C7 x7 = C7();
|
||||
Expect.throws(() => x7.m(7.7));
|
||||
JJ7 y7 = D7();
|
||||
Expect.throws(() => y7.m(o));
|
||||
|
||||
B8 x8 = C8();
|
||||
x8.m(8.8);
|
||||
JJ8 y8 = D8();
|
||||
Expect.throws(() => y8.m(o));
|
||||
|
||||
B9 x9 = C9();
|
||||
x9.m(1.1);
|
||||
DD9 y9 = D9();
|
||||
Expect.throws(() => y9.m(o));
|
||||
|
||||
C10 x10 = C10();
|
||||
Expect.throws(() => x10.m(10.10));
|
||||
DD10 y10 = D10();
|
||||
Expect.throws(() => y10.m(o));
|
||||
|
||||
B11 x11 = C11();
|
||||
x11.m(11.11);
|
||||
DD11 y11 = D11();
|
||||
Expect.throws(() => y11.m(o));
|
||||
|
||||
B12 x12 = C12();
|
||||
x12.m(12.12);
|
||||
DD12 y12 = D12();
|
||||
Expect.throws(() => y12.m(o));
|
||||
|
||||
C13 x13 = C13();
|
||||
Expect.throws(() => x13.m(13.13));
|
||||
DD13 y13 = D13();
|
||||
Expect.throws(() => y13.m(o));
|
||||
|
||||
B14 x14 = C14();
|
||||
x14.m(14.14);
|
||||
DD14 y14 = D14();
|
||||
Expect.throws(() => y14.m(o));
|
||||
|
||||
B15 x15 = C15();
|
||||
x15.m(15.15);
|
||||
JJ15 y15 = D15();
|
||||
Expect.throws(() => y15.m(o));
|
||||
|
||||
C16 x16 = C16();
|
||||
Expect.throws(() => x16.m(16.16));
|
||||
JJ16 y16 = D16();
|
||||
Expect.throws(() => y16.m(o));
|
||||
|
||||
B17 x17 = C17();
|
||||
x17.m(17.17);
|
||||
JJ17 y17 = D17();
|
||||
Expect.throws(() => y17.m(o));
|
||||
}
|
Loading…
Reference in a new issue