tests/compiler/dart2js/override_inheritance_test.dart

// Copyright (c) 2014, 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";

import "compiler_helper.dart";
import "../../../sdk/lib/_internal/compiler/implementation/resolution/class_members.dart"
    show MembersCreator;

main() {
  testRequiredParameters();
  testPositionalParameters();
  testNamedParameters();
  testNotSubtype();
  testGetterNotSubtype();
  testSetterNotSubtype();
  testGenericNotSubtype();
  testFieldNotSubtype();
  testMixedOverride();
  testAbstractMethods();
  testNoSuchMethod();
}

check(String source, {errors, warnings, hints, infos}) {
  MockCompiler compiler = new MockCompiler();
  compiler.diagnosticHandler = createHandler(compiler, source);
  compiler.parseScript(source);
  var cls = compiler.mainApp.find('Class');
  cls.ensureResolved(compiler);
  MembersCreator.computeAllClassMembers(compiler, cls);

  toList(o) => o == null ? [] : o is List ? o : [o];

  compareMessageKinds(source, toList(errors), compiler.errors, 'error');

  compareMessageKinds(source, toList(warnings), compiler.warnings, 'warning');

  if (infos != null) {
    compareMessageKinds(source, toList(infos), compiler.infos, 'info');
  }

  if (hints != null) {
    compareMessageKinds(source, toList(hints), compiler.hints, 'hint');
  }
}

testRequiredParameters() {
  check("""
        class A {
          method() => null; // testRequiredParameters:0
        }
        class Class extends A {
          method() => null; // testRequiredParameters:1
        }
        """);

  check("""
        class A {
          method(a) => null; // testRequiredParameters:2
        }
        class Class extends A {
          method(b) => null; // testRequiredParameters:3
        }
        """);

  check("""
        class A {
          method(a, b, c, d) => null; // testRequiredParameters:3
        }
        class Class extends A {
          method(b, a, d, c) => null; // testRequiredParameters:4
        }
        """);

  check("""
        class A {
          method() => null; // testRequiredParameters:5
        }
        class Class extends A {
          method(a) => null; // testRequiredParameters:6
        }
        """, warnings: MessageKind.INVALID_OVERRIDE_METHOD,
             infos: MessageKind.INVALID_OVERRIDDEN_METHOD);

  check("""
        class A {
          method() => null; // testRequiredParameters:7
        }
        class Class implements A {
          method(a) => null; // testRequiredParameters:8
        }
        """, warnings: MessageKind.INVALID_OVERRIDE_METHOD,
             infos: MessageKind.INVALID_OVERRIDDEN_METHOD);

  check("""
        class A {
          method(a, b, c) => null; // testRequiredParameters:9
        }
        class Class extends A {
          method(a, b, c, d) => null; // testRequiredParameters:10
        }
        """, warnings: MessageKind.INVALID_OVERRIDE_METHOD,
             infos: MessageKind.INVALID_OVERRIDDEN_METHOD);
}

testPositionalParameters() {
  check("""
        class A {
          method([a]) => null; // testPositionalParameters:1
        }
        class Class extends A {
          method([a]) => null; // testPositionalParameters:2
        }
        """);

  check("""
        class A {
          method([a, b]) => null; // testPositionalParameters:3
        }
        class Class extends A {
          method([b, a]) => null; // testPositionalParameters:4
        }
        """);

  check("""
        class A {
          method([a, b, c]) => null; // testPositionalParameters:5
        }
        class Class extends A {
          method([b, d, a, c]) => null; // testPositionalParameters:6
        }
        """);

  check("""
        class A {
          method([a]) => null; // testPositionalParameters:7
        }
        class Class extends A {
          method([a]) => null; // testPositionalParameters:8
        }
        """);

  check("""
        class A {
          method(a) => null; // testPositionalParameters:9
        }
        class Class extends A {
          method() => null; // testPositionalParameters:10
        }
        """, warnings: MessageKind.INVALID_OVERRIDE_METHOD,
             infos: MessageKind.INVALID_OVERRIDDEN_METHOD);

  check("""
        class A {
          method(a, [b]) => null; // testPositionalParameters:11
        }
        class Class extends A {
          method(a) => null; // testPositionalParameters:12
        }
        """, warnings: MessageKind.INVALID_OVERRIDE_METHOD,
             infos: MessageKind.INVALID_OVERRIDDEN_METHOD);

  check("""
        class A {
          method(a, [b]) => null; // testPositionalParameters:13
        }
        class Class extends A {
          method([a]) => null; // testPositionalParameters:14
        }
        """, warnings: MessageKind.INVALID_OVERRIDE_METHOD,
             infos: MessageKind.INVALID_OVERRIDDEN_METHOD);

  check("""
        class A {
          method(a, b, [c, d, e]) => null; // testPositionalParameters:15
        }
        class Class extends A {
          method([a, b, c, d]) => null; // testPositionalParameters:16
        }
        """, warnings: MessageKind.INVALID_OVERRIDE_METHOD,
             infos: MessageKind.INVALID_OVERRIDDEN_METHOD);
}

testNamedParameters() {
  check("""
        class A {
          method({a}) => null; // testNamedParameters:1
        }
        class Class extends A {
          method({a}) => null; // testNamedParameters:2
        }
        """);

  check("""
        class A {
          method({a, b}) => null; // testNamedParameters:3
        }
        class Class extends A {
          method({b, a}) => null; // testNamedParameters:4
        }
        """);

  check("""
        class A {
          method({a, b, c}) => null; // testNamedParameters:5
        }
        class Class extends A {
          method({b, c, a, d}) => null; // testNamedParameters:6
        }
        """);

  check("""
        class A {
          method(d, {a, b, c}) => null; // testNamedParameters:7
        }
        class Class extends A {
          method(e, {b, c, a, d}) => null; // testNamedParameters:8
        }
        """);

  check("""
        class A {
          method({a}) => null; // testNamedParameters:9
        }
        class Class extends A {
          method() => null; // testNamedParameters:10
        }
        """, warnings: MessageKind.INVALID_OVERRIDE_METHOD,
             infos: MessageKind.INVALID_OVERRIDDEN_METHOD);

  check("""
        class A {
          method({a, b}) => null; // testNamedParameters:11
        }
        class Class extends A {
          method({b}) => null; // testNamedParameters:12
        }
        """, warnings: MessageKind.INVALID_OVERRIDE_METHOD,
             infos: MessageKind.INVALID_OVERRIDDEN_METHOD);

  check("""
        class A {
          method({a, b, c, d}) => null; // testNamedParameters:13
        }
        class Class extends A {
          method({a, e, d, c}) => null; // testNamedParameters:14
        }
        """, warnings: MessageKind.INVALID_OVERRIDE_METHOD,
             infos: MessageKind.INVALID_OVERRIDDEN_METHOD);
}

testNotSubtype() {
  check("""
        class A {
          method(int a) => null; // testNotSubtype:1
        }
        class Class extends A {
          method(int a) => null; // testNotSubtype:2
        }
        """);

  check("""
        class A {
          method(int a) => null; // testNotSubtype:3
        }
        class Class extends A {
          method(num a) => null; // testNotSubtype:4
        }
        """);

  check("""
        class A {
          void method() {} // testNotSubtype:5
        }
        class Class extends A {
          method() => null; // testNotSubtype:6
        }
        """);

  check("""
        class A {
          method() => null; // testNotSubtype:7
        }
        class Class extends A {
          void method() {} // testNotSubtype:8
        }
        """);

  check("""
        class A {
          void method() {} // testNotSubtype:9
        }
        class Class extends A {
          int method() => null; // testNotSubtype:10
        }
        """);

  check("""
        class A {
          int method() => null; // testNotSubtype:11
        }
        class Class extends A {
          void method() {} // testNotSubtype:12
        }
        """, warnings: MessageKind.INVALID_OVERRIDE_METHOD,
             infos: MessageKind.INVALID_OVERRIDDEN_METHOD);

  check("""
        class A {
          method(int a) => null; // testNotSubtype:13
        }
        class B extends A {
          method(num a) => null; // testNotSubtype:14
        }
        class Class extends B {
          method(double a) => null; // testNotSubtype:15
        }
        """);

  check("""
        class A {
          method(int a) => null; // testNotSubtype:16
        }
        class B extends A {
          method(a) => null; // testNotSubtype:17
        }
        class Class extends B {
          method(String a) => null; // testNotSubtype:18
        }
        """);

  check("""
        class A {
          method(int a) => null; // testNotSubtype:19
        }
        class Class extends A {
          method(String a) => null; // testNotSubtype:20
        }
        """, warnings: MessageKind.INVALID_OVERRIDE_METHOD,
             infos: MessageKind.INVALID_OVERRIDDEN_METHOD);

  // TODO(johnniwinther): These are unclear. Issue 16443 has been filed.
  check("""
        class A {
          method(int a) => null; // testNotSubtype:23
        }
        class B {
          method(num a) => null; // testNotSubtype:24
        }
        abstract class C implements A, B {
        }
        class Class implements C {
          method(double a) => null; // testNotSubtype:25
        }
        """, warnings: MessageKind.INVALID_OVERRIDE_METHOD,
             infos: MessageKind.INVALID_OVERRIDDEN_METHOD);

  check("""
        class A {
          method(num a) => null; // testNotSubtype:29
        }
        class B {
          method(int a) => null; // testNotSubtype:30
        }
        abstract class C implements A, B {
        }
        class Class implements C {
          method(double a) => null; // testNotSubtype:31
        }
        """, warnings: MessageKind.INVALID_OVERRIDE_METHOD,
             infos: MessageKind.INVALID_OVERRIDDEN_METHOD);

  check("""
        class A {
          method(int a) => null; // testNotSubtype:26
        }
        class B {
          method(num a) => null; // testNotSubtype:27
        }
        abstract class C implements A, B {
        }
        class Class implements C {
          method(String a) => null; // testNotSubtype:28
        }
        """, warnings: [MessageKind.INVALID_OVERRIDE_METHOD,
                        MessageKind.INVALID_OVERRIDE_METHOD],
             infos: [MessageKind.INVALID_OVERRIDDEN_METHOD,
                     MessageKind.INVALID_OVERRIDDEN_METHOD]);
}

testGetterNotSubtype() {
  check("""
        class A {
          get getter => null; // testGetterNotSubtype:1
        }
        class Class extends A {
          get getter => null; // testGetterNotSubtype:2
        }
        """);

  check("""
        class A {
          num get getter => null; // testGetterNotSubtype:3
        }
        class Class extends A {
          num get getter => null; // testGetterNotSubtype:4
        }
        """);

  check("""
        class A {
          num get getter => null; // testGetterNotSubtype:5
        }
        class Class extends A {
          int get getter => null; // testGetterNotSubtype:6
        }
        """);

  check("""
        class A {
          int get getter => null; // testGetterNotSubtype:7
        }
        class Class extends A {
          num get getter => null; // testGetterNotSubtype:8
        }
        """);

  check("""
        class A {
          int get getter => null; // testGetterNotSubtype:9
        }
        class Class extends A {
          double get getter => null; // testGetterNotSubtype:10
        }
        """, warnings: MessageKind.INVALID_OVERRIDE_GETTER,
             infos: MessageKind.INVALID_OVERRIDDEN_GETTER);

  check("""
        class A {
          int get getter => null; // testGetterNotSubtype:11
        }
        class B extends A {
          num get getter => null; // testGetterNotSubtype:12
        }
        class Class extends B {
          double get getter => null; // testGetterNotSubtype:13
        }
        """);

  check("""
        class A {
          int get getter => null; // testGetterNotSubtype:14
        }
        class B {
          num get getter => null; // testGetterNotSubtype:15
        }
        class Class extends A implements B {
          double get getter => null; // testGetterNotSubtype:16
        }
        """, warnings: MessageKind.INVALID_OVERRIDE_GETTER,
             infos: MessageKind.INVALID_OVERRIDDEN_GETTER);

  check("""
        class A {
          int get getter => null; // testGetterNotSubtype:17
        }
        class B {
          String get getter => null; // testGetterNotSubtype:18
        }
        class Class extends A implements B {
          double get getter => null; // testGetterNotSubtype:19
        }
        """, warnings: [MessageKind.INVALID_OVERRIDE_GETTER,
                        MessageKind.INVALID_OVERRIDE_GETTER],
             infos: [MessageKind.INVALID_OVERRIDDEN_GETTER,
                     MessageKind.INVALID_OVERRIDDEN_GETTER]);

  check("""
        class A {
          int get getter => null; // testGetterNotSubtype:20
        }
        class B {
          String get getter => null; // testGetterNotSubtype:21
        }
        class Class implements A, B {
          double get getter => null; // testGetterNotSubtype:22
        }
        """, warnings: [MessageKind.INVALID_OVERRIDE_GETTER,
                        MessageKind.INVALID_OVERRIDE_GETTER],
             infos: [MessageKind.INVALID_OVERRIDDEN_GETTER,
                     MessageKind.INVALID_OVERRIDDEN_GETTER]);

  // TODO(johnniwinther): These are unclear. Issue 16443 has been filed.
  check("""
        class A {
          int get getter => null; // testGetterNotSubtype:23
        }
        class B {
          num get getter => null; // testGetterNotSubtype:24
        }
        abstract class C implements A, B {
        }
        class Class implements C {
          double get getter => null; // testGetterNotSubtype:25
        }
        """, warnings: MessageKind.INVALID_OVERRIDE_GETTER,
             infos: MessageKind.INVALID_OVERRIDDEN_GETTER);

  check("""
        class A {
          int get getter => null; // testGetterNotSubtype:26
        }
        class B {
          num get getter => null; // testGetterNotSubtype:27
        }
        abstract class C implements A, B {
        }
        class Class implements C {
          String get getter => null; // testGetterNotSubtype:28
        }
        """, warnings: [MessageKind.INVALID_OVERRIDE_GETTER,
                        MessageKind.INVALID_OVERRIDE_GETTER],
             infos: [MessageKind.INVALID_OVERRIDDEN_GETTER,
                     MessageKind.INVALID_OVERRIDDEN_GETTER]);
}

testGenericNotSubtype() {
  check("""
        class A<T> {
          method(T t) => null; // testGenericNotSubtype:1
        }
        class Class<S> extends A<S> {
          method(S s) => null; // testGenericNotSubtype:2
        }
        """);

  check("""
        class A<T> {
          method(T t) => null; // testGenericNotSubtype:3
        }
        class Class extends A<num> {
          method(int i) => null; // testGenericNotSubtype:4
        }
        """);

  check("""
        class A<T> {
          method(T t) => null; // testGenericNotSubtype:5
        }
        class B<S> {
          method(S s) => null; // testGenericNotSubtype:6
        }
        class Class extends A<double> implements B<int> {
          method(num i) => null; // testGenericNotSubtype:7
        }
        """);

  check("""
        class A<T> {
          method(T t) => null; // testGenericNotSubtype:8
        }
        class Class<S> extends A<S> {
          method(int i) => null; // testGenericNotSubtype:9
        }
        """, warnings: MessageKind.INVALID_OVERRIDE_METHOD,
             infos: MessageKind.INVALID_OVERRIDDEN_METHOD);

  check("""
        class A<T> {
          method(T t) => null; // testGenericNotSubtype:10
        }
        class B<S> extends A<S> {

        }
        class Class<U> extends B<U> {
          method(U u) => null; // testGenericNotSubtype:11
        }
        """);

  check("""
        class A<T> {
          method(T t) => null; // testGenericNotSubtype:12
        }
        class B<S> {
          method(S s) => null; // testGenericNotSubtype:13
        }
        class Class<U> extends A<U> implements B<num> {
          method(int i) => null; // testGenericNotSubtype:14
        }
        """, warnings: MessageKind.INVALID_OVERRIDE_METHOD,
             infos: MessageKind.INVALID_OVERRIDDEN_METHOD);

  check("""
        class A<T> {
          method(T t) => null; // testGenericNotSubtype:15
        }
        class B<S> {
          method(S s) => null; // testGenericNotSubtype:16
        }
        class Class extends A<int> implements B<String> {
          method(double d) => null; // testGenericNotSubtype:17
        }
        """, warnings: [MessageKind.INVALID_OVERRIDE_METHOD,
                        MessageKind.INVALID_OVERRIDE_METHOD],
             infos: [MessageKind.INVALID_OVERRIDDEN_METHOD,
                     MessageKind.INVALID_OVERRIDDEN_METHOD]);

  check("""
        class A<T> {
          method(T t) => null; // testGenericNotSubtype:18
        }
        class B<S> {
          method(S s) => null; // testGenericNotSubtype:19
        }
        class Class implements A<int>, B<String> {
          method(double d) => null; // testGenericNotSubtype:20
        }
        """, warnings: [MessageKind.INVALID_OVERRIDE_METHOD,
                        MessageKind.INVALID_OVERRIDE_METHOD],
             infos: [MessageKind.INVALID_OVERRIDDEN_METHOD,
                     MessageKind.INVALID_OVERRIDDEN_METHOD]);

  // TODO(johnniwinther): These are unclear. Issue 16443 has been filed.
  check("""
        class A<T> {
          method(T t) => null; // testGenericNotSubtype:21
        }
        class B<S> {
          method(S s) => null; // testGenericNotSubtype:22
        }
        abstract class C implements A<int>, B<num> {
        }
        class Class implements C {
          method(double d) => null; // testGenericNotSubtype:23
        }
        """, warnings: MessageKind.INVALID_OVERRIDE_METHOD,
             infos: MessageKind.INVALID_OVERRIDDEN_METHOD);

  check("""
        class A<T> {
          method(T t) => null; // testGenericNotSubtype:24
        }
        class B<S> {
          method(S s) => null; // testGenericNotSubtype:25
        }
        abstract class C implements A<int>, B<num> {
        }
        class Class implements C {
          method(String s) => null; // testGenericNotSubtype:26
        }
        """, warnings: [MessageKind.INVALID_OVERRIDE_METHOD,
                        MessageKind.INVALID_OVERRIDE_METHOD],
             infos: [MessageKind.INVALID_OVERRIDDEN_METHOD,
                     MessageKind.INVALID_OVERRIDDEN_METHOD]);
}

testSetterNotSubtype() {
  check("""
        class A {
          set setter(_) => null; // testSetterNotSubtype:1
        }
        class Class extends A {
          set setter(_) => null; // testSetterNotSubtype:2
        }
        """);

  check("""
        class A {
          void set setter(_) {} // testSetterNotSubtype:3
        }
        class Class extends A {
          set setter(_) => null; // testSetterNotSubtype:4
        }
        """);

  check("""
        class A {
          set setter(_) => null; // testSetterNotSubtype:5
        }
        class Class extends A {
          void set setter(_) {} // testSetterNotSubtype:6
        }
        """);

  check("""
        class A {
          set setter(_) => null; // testSetterNotSubtype:7
        }
        class Class extends A {
          void set setter(_) {} // testSetterNotSubtype:8
        }
        """);

  check("""
        class A {
          set setter(num _) => null; // testSetterNotSubtype:9
        }
        class Class extends A {
          set setter(num _) => null; // testSetterNotSubtype:10
        }
        """);

  check("""
        class A {
          set setter(num _) => null; // testSetterNotSubtype:11
        }
        class Class extends A {
          set setter(int _) => null; // testSetterNotSubtype:12
        }
        """);

  check("""
        class A {
          set setter(int _) => null; // testSetterNotSubtype:13
        }
        class Class extends A {
          set setter(num _) => null; // testSetterNotSubtype:14
        }
        """);

  check("""
        class A {
          set setter(int _) => null; // testSetterNotSubtype:15
        }
        class Class extends A {
          set setter(double _) => null; // testSetterNotSubtype:16
        }
        """, warnings: MessageKind.INVALID_OVERRIDE_SETTER,
             infos: MessageKind.INVALID_OVERRIDDEN_SETTER);

  check("""
        class A {
          set setter(int _) => null; // testSetterNotSubtype:17
        }
        class B extends A {
          set setter(num _) => null; // testSetterNotSubtype:18
        }
        class Class extends B {
          set setter(double _) => null; // testSetterNotSubtype:19
        }
        """);

  check("""
        class A {
          set setter(int _) => null; // testSetterNotSubtype:20
        }
        class B {
          set setter(num _) => null; // testSetterNotSubtype:21
        }
        class Class extends A implements B {
          set setter(double _) => null; // testSetterNotSubtype:22
        }
        """, warnings: MessageKind.INVALID_OVERRIDE_SETTER,
             infos: MessageKind.INVALID_OVERRIDDEN_SETTER);

  check("""
        class A {
          set setter(int _) => null; // testSetterNotSubtype:23
        }
        class B {
          set setter(String _) => null; // testSetterNotSubtype:24
        }
        class Class extends A implements B {
          set setter(double _) => null; // testSetterNotSubtype:25
        }
        """, warnings: [MessageKind.INVALID_OVERRIDE_SETTER,
                        MessageKind.INVALID_OVERRIDE_SETTER],
             infos: [MessageKind.INVALID_OVERRIDDEN_SETTER,
                     MessageKind.INVALID_OVERRIDDEN_SETTER]);

  check("""
        class A {
          set setter(int _) => null; // testSetterNotSubtype:26
        }
        class B {
          set setter(String _) => null; // testSetterNotSubtype:27
        }
        class Class implements A, B {
          set setter(double _) => null; // testSetterNotSubtype:28
        }
        """, warnings: [MessageKind.INVALID_OVERRIDE_SETTER,
                        MessageKind.INVALID_OVERRIDE_SETTER],
             infos: [MessageKind.INVALID_OVERRIDDEN_SETTER,
                     MessageKind.INVALID_OVERRIDDEN_SETTER]);

  // TODO(johnniwinther): These are unclear. Issue 16443 has been filed.
  check("""
        class A {
          set setter(int _) => null; // testSetterNotSubtype:29
        }
        class B {
          set setter(num _) => null; // testSetterNotSubtype:30
        }
        abstract class C implements A, B {
        }
        class Class implements C {
          set setter(double _) => null; // testSetterNotSubtype:31
        }
        """, warnings: MessageKind.INVALID_OVERRIDE_SETTER,
             infos: MessageKind.INVALID_OVERRIDDEN_SETTER);

  check("""
        class A {
          set setter(int _) => null; // testSetterNotSubtype:32
        }
        class B {
          set setter(num _) => null; // testSetterNotSubtype:33
        }
        abstract class C implements A, B {
        }
        class Class implements C {
          set setter(String _) => null; // testSetterNotSubtype:34
        }
        """, warnings: [MessageKind.INVALID_OVERRIDE_SETTER,
                        MessageKind.INVALID_OVERRIDE_SETTER],
             infos: [MessageKind.INVALID_OVERRIDDEN_SETTER,
                     MessageKind.INVALID_OVERRIDDEN_SETTER]);
}

testFieldNotSubtype() {
  check("""
        class A {
          int field; // testFieldNotSubtype:1
        }
        class Class extends A {
          int field; // testFieldNotSubtype:2
        }
        """);

  check("""
        class A {
          num field; // testFieldNotSubtype:3
        }
        class Class extends A {
          int field; // testFieldNotSubtype:4
        }
        """);

  check("""
        class A {
          int field; // testFieldNotSubtype:5
        }
        class Class extends A {
          num field; // testFieldNotSubtype:6
        }
        """);

  check("""
        class A {
          int field; // testFieldNotSubtype:7
        }
        class Class extends A {
          double field; // testFieldNotSubtype:8
        }
        """, warnings: MessageKind.INVALID_OVERRIDE_FIELD,
             infos: MessageKind.INVALID_OVERRIDDEN_FIELD);

  check("""
        class A {
          int field; // testFieldNotSubtype:9
        }
        class B extends A {
          num field; // testFieldNotSubtype:10
        }
        class Class extends B {
          double field; // testFieldNotSubtype:11
        }
        """);

  check("""
        class A {
          num field; // testFieldNotSubtype:12
        }
        class Class extends A {
          int get field => null; // testFieldNotSubtype:13
        }
        """);

  check("""
        class A {
          num field; // testFieldNotSubtype:14
        }
        class Class extends A {
          String get field => null; // testFieldNotSubtype:15
        }
        """, warnings: MessageKind.INVALID_OVERRIDE_FIELD_WITH_GETTER,
             infos: MessageKind.INVALID_OVERRIDDEN_FIELD);

  check("""
        class A {
          num get field => null; // testFieldNotSubtype:16
        }
        class Class extends A {
          String field; // testFieldNotSubtype:17
        }
        """, warnings: MessageKind.INVALID_OVERRIDE_GETTER_WITH_FIELD,
             infos: MessageKind.INVALID_OVERRIDDEN_GETTER);

  check("""
        class A {
          num field; // testFieldNotSubtype:18
        }
        class Class extends A {
          set field(int _) {} // testFieldNotSubtype:19
        }
        """);

  check("""
        class A {
          num field; // testFieldNotSubtype:19
        }
        class Class extends A {
          void set field(int _) {} // testFieldNotSubtype:20
        }
        """);

  check("""
        class A {
          set field(int _) {} // testFieldNotSubtype:21
        }
        class Class extends A {
          num field; // testFieldNotSubtype:22
        }
        """);

  check("""
        class A {
          void set field(int _) {} // testFieldNotSubtype:23
        }
        class Class extends A {
          num field; // testFieldNotSubtype:24
        }
        """);

  check("""
        class A {
          num field; // testFieldNotSubtype:25
        }
        class Class extends A {
          set field(String _) {} // testFieldNotSubtype:26
        }
        """, warnings: MessageKind.INVALID_OVERRIDE_FIELD_WITH_SETTER,
             infos: MessageKind.INVALID_OVERRIDDEN_FIELD);

  check("""
        class A {
          set field(num _) {} // testFieldNotSubtype:27
        }
        class Class extends A {
          String field; // testFieldNotSubtype:28
        }
        """, warnings: MessageKind.INVALID_OVERRIDE_SETTER_WITH_FIELD,
             infos: MessageKind.INVALID_OVERRIDDEN_SETTER);

  check("""
        class A {
          int field; // testFieldNotSubtype:29
        }
        class Class implements A {
          String get field => null; // testFieldNotSubtype:30
          void set field(String s) {} // testFieldNotSubtype:31
        }
        """, warnings: [MessageKind.INVALID_OVERRIDE_FIELD_WITH_GETTER,
                        MessageKind.INVALID_OVERRIDE_FIELD_WITH_SETTER],
             infos: [MessageKind.INVALID_OVERRIDDEN_FIELD,
                     MessageKind.INVALID_OVERRIDDEN_FIELD]);


  check("""
        class A {
          String get field => null; // testFieldNotSubtype:32
          void set field(String s) {} // testFieldNotSubtype:33
        }
        class Class implements A {
          int field; // testFieldNotSubtype:34
        }
        """, warnings: [MessageKind.INVALID_OVERRIDE_GETTER_WITH_FIELD,
                        MessageKind.INVALID_OVERRIDE_SETTER_WITH_FIELD],
             infos: [MessageKind.INVALID_OVERRIDDEN_GETTER,
                     MessageKind.INVALID_OVERRIDDEN_SETTER]);
}

testMixedOverride() {
  check("""
        class A {
          var member; // testMixedOverride:1
        }
        class Class extends A {
          member() {} // testMixedOverride:2
        }
        """, errors: MessageKind.CANNOT_OVERRIDE_FIELD_WITH_METHOD,
             infos: MessageKind.CANNOT_OVERRIDE_FIELD_WITH_METHOD_CONT);

  check("""
        class A {
          member() {} // testMixedOverride:3
        }
        class Class extends A {
          var member; // testMixedOverride:4
        }
        """, errors: MessageKind.CANNOT_OVERRIDE_METHOD_WITH_FIELD,
             infos: MessageKind.CANNOT_OVERRIDE_METHOD_WITH_FIELD_CONT);

  check("""
        class A {
          get member => null; // testMixedOverride:5
        }
        class Class extends A {
          member() {} // testMixedOverride:6
        }
        """, errors: MessageKind.CANNOT_OVERRIDE_GETTER_WITH_METHOD,
             infos: MessageKind.CANNOT_OVERRIDE_GETTER_WITH_METHOD_CONT);

  check("""
        class A {
          member() {} // testMixedOverride:7
        }
        class Class extends A {
          get member => null; // testMixedOverride:8
        }
        """, errors: MessageKind.CANNOT_OVERRIDE_METHOD_WITH_GETTER,
             infos: MessageKind.CANNOT_OVERRIDE_METHOD_WITH_GETTER_CONT);

  check("""
        abstract class A {
          var member; // testMixedOverride:9
        }
        abstract class B {
          get member; // testMixedOverride:10
        }
        abstract class Class implements A, B {
        }
        """);

  check("""
        abstract class A {
          var member; // testMixedOverride:11
        }
        abstract class B {
          member() {} // testMixedOverride:12
        }
        abstract class Class implements A, B {
        }
        """, warnings: MessageKind.INHERIT_GETTER_AND_METHOD,
             infos: [MessageKind.INHERITED_METHOD,
                     MessageKind.INHERITED_IMPLICIT_GETTER]);

  check("""
        abstract class A {
          get member; // testMixedOverride:13
        }
        abstract class B {
          member() {} // testMixedOverride:14
        }
        abstract class Class implements A, B {
        }
        """, warnings: MessageKind.INHERIT_GETTER_AND_METHOD,
             infos: [MessageKind.INHERITED_METHOD,
                     MessageKind.INHERITED_EXPLICIT_GETTER]);

  check("""
        abstract class A {
          get member; // testMixedOverride:15
        }
        abstract class B {
          member() {} // testMixedOverride:16
        }
        abstract class C {
          var member; // testMixedOverride:17
        }
        abstract class D {
          member() {} // testMixedOverride:18
        }
        abstract class E {
          get member; // testMixedOverride:19
        }
        abstract class Class implements A, B, C, D, E {
        }
        """, warnings: MessageKind.INHERIT_GETTER_AND_METHOD,
             infos: [MessageKind.INHERITED_EXPLICIT_GETTER,
                     MessageKind.INHERITED_METHOD,
                     MessageKind.INHERITED_IMPLICIT_GETTER,
                     MessageKind.INHERITED_METHOD,
                     MessageKind.INHERITED_EXPLICIT_GETTER]);

  check("""
        abstract class A {
          get member; // testMixedOverride:20
        }
        abstract class B {
          member() {} // testMixedOverride:21
        }
        abstract class C implements A, B {
        }
        class Class extends C {
          member() {} // testMixedOverride:22
        }
        """, errors: MessageKind.CANNOT_OVERRIDE_GETTER_WITH_METHOD,
             warnings: MessageKind.INHERIT_GETTER_AND_METHOD,
             infos: [MessageKind.INHERITED_METHOD,
                     MessageKind.INHERITED_EXPLICIT_GETTER,
                     MessageKind.CANNOT_OVERRIDE_GETTER_WITH_METHOD_CONT]);

  check("""
        abstract class A {
          get member; // testMixedOverride:23
        }
        abstract class B {
          member() {} // testMixedOverride:24
        }
        abstract class C implements A, B {
        }
        class Class extends C {
          get member => null; // testMixedOverride:25
        }
        """, errors: MessageKind.CANNOT_OVERRIDE_METHOD_WITH_GETTER,
             warnings: MessageKind.INHERIT_GETTER_AND_METHOD,
             infos: [MessageKind.INHERITED_METHOD,
                     MessageKind.INHERITED_EXPLICIT_GETTER,
                     MessageKind.CANNOT_OVERRIDE_METHOD_WITH_GETTER_CONT]);
}

testAbstractMethods() {
  check("""
        abstract class Class {
          method(); // testAbstractMethod:1
        }
        """);

  check("""
        class Class {
          method(); // testAbstractMethod:2
        }
        """, warnings: MessageKind.ABSTRACT_METHOD,
             infos: []);

  check("""
        class Class {
          get getter; // testAbstractMethod:3
        }
        """, warnings: MessageKind.ABSTRACT_GETTER,
             infos: []);

  check("""
        class Class {
          set setter(_); // testAbstractMethod:4
        }
        """, warnings: MessageKind.ABSTRACT_SETTER,
             infos: []);

  check("""
        abstract class A {
          method(); // testAbstractMethod:5
        }
        class Class extends A {
          method() {} // testAbstractMethod:6
        }
        """);

  check("""
        abstract class A {
          method(); // testAbstractMethod:7
        }
        class Class extends A {
          method([a]) {} // testAbstractMethod:8
        }
        """);

  check("""
        abstract class A {
          method(); // testAbstractMethod:9
        }
        class Class extends A {
        }
        """, warnings: MessageKind.UNIMPLEMENTED_METHOD_ONE,
             infos: MessageKind.UNIMPLEMENTED_METHOD_CONT);

  check("""
        abstract class A {
          get getter; // testAbstractMethod:10
        }
        class Class extends A {
        }
        """, warnings: MessageKind.UNIMPLEMENTED_GETTER_ONE,
             infos: MessageKind.UNIMPLEMENTED_EXPLICIT_GETTER);

  check("""
        abstract class A {
          set setter(_); // testAbstractMethod:11
        }
        class Class extends A {
        }
        """, warnings: MessageKind.UNIMPLEMENTED_SETTER_ONE,
             infos: MessageKind.UNIMPLEMENTED_EXPLICIT_SETTER);

  check("""
        abstract class A {
          method(); // testAbstractMethod:12
        }
        class B {
          method() {} // testAbstractMethod:13
        }
        class Class extends A implements B {
        }
        """, warnings: MessageKind.UNIMPLEMENTED_METHOD,
             infos: [MessageKind.UNIMPLEMENTED_METHOD_CONT,
                     MessageKind.UNIMPLEMENTED_METHOD_CONT]);

  check("""
        abstract class A {
          get getter; // testAbstractMethod:14
        }
        class B {
          get getter => 0; // testAbstractMethod:15
        }
        class Class extends A implements B {
        }
        """, warnings: MessageKind.UNIMPLEMENTED_GETTER,
             infos: [MessageKind.UNIMPLEMENTED_EXPLICIT_GETTER,
                     MessageKind.UNIMPLEMENTED_EXPLICIT_GETTER]);

  check("""
        abstract class A {
          set setter(_); // testAbstractMethod:16
        }
        class B {
          set setter(_) {} // testAbstractMethod:17
        }
        class Class extends A implements B {
        }
        """, warnings: MessageKind.UNIMPLEMENTED_SETTER,
             infos: [MessageKind.UNIMPLEMENTED_EXPLICIT_SETTER,
                     MessageKind.UNIMPLEMENTED_EXPLICIT_SETTER]);

  check("""
        abstract class A {
          get field; // testAbstractMethod:18
        }
        class B {
          var field; // testAbstractMethod:19
        }
        class Class extends A implements B {
          set field(_) {} // testAbstractMethod:20
        }
        """, warnings: MessageKind.UNIMPLEMENTED_GETTER,
             infos: [MessageKind.UNIMPLEMENTED_EXPLICIT_GETTER,
                     MessageKind.UNIMPLEMENTED_IMPLICIT_GETTER]);

  check("""
        abstract class A {
          set field(_); // testAbstractMethod:21
        }
        class B {
          var field; // testAbstractMethod:22
        }
        class Class extends A implements B {
          get field => 0; // testAbstractMethod:23
        }
        """, warnings: MessageKind.UNIMPLEMENTED_SETTER,
             infos: [MessageKind.UNIMPLEMENTED_EXPLICIT_SETTER,
                     MessageKind.UNIMPLEMENTED_IMPLICIT_SETTER]);

  check("""
        class A {
          method() {} // testAbstractMethod:24
        }
        class Class implements A {
          method() {} // testAbstractMethod:25
        }
        """);

  check("""
        class A {
          method() {} // testAbstractMethod:26
        }
        class Class implements A {
          method([a]) {} // testAbstractMethod:27
        }
        """);

  check("""
        class A {
          method() {} // testAbstractMethod:28
        }
        class Class implements A {
        }
        """, warnings: MessageKind.UNIMPLEMENTED_METHOD_ONE,
             infos: MessageKind.UNIMPLEMENTED_METHOD_CONT);

  check("""
        class A {
          method() {} // testAbstractMethod:29
        }
        class B {
          method() {} // testAbstractMethod:30
        }
        class Class extends A implements B {
        }
        """);

  check("""
        class A {
          var member; // testAbstractMethod:31
        }
        class Class implements A {
        }
        """, warnings: [MessageKind.UNIMPLEMENTED_GETTER_ONE,
                        MessageKind.UNIMPLEMENTED_SETTER_ONE],
             infos: [MessageKind.UNIMPLEMENTED_IMPLICIT_GETTER,
                     MessageKind.UNIMPLEMENTED_IMPLICIT_SETTER]);

  check("""
        class A {
          var member; // testAbstractMethod:32
        }
        class B {
          get member => null; // testAbstractMethod:33
          set member(_) {} // testAbstractMethod:34
        }
        class Class implements A, B {
        }
        """, warnings: [MessageKind.UNIMPLEMENTED_GETTER,
                        MessageKind.UNIMPLEMENTED_SETTER],
             infos: [MessageKind.UNIMPLEMENTED_EXPLICIT_GETTER,
                     MessageKind.UNIMPLEMENTED_IMPLICIT_GETTER,
                     MessageKind.UNIMPLEMENTED_EXPLICIT_SETTER,
                     MessageKind.UNIMPLEMENTED_IMPLICIT_SETTER]);

  check("""
        class A {
          var member; // testAbstractMethod:35
        }
        class B {
          var member; // testAbstractMethod:36
        }
        class Class implements A, B {
        }
        """, warnings: [MessageKind.UNIMPLEMENTED_GETTER,
                        MessageKind.UNIMPLEMENTED_SETTER],
             infos: [MessageKind.UNIMPLEMENTED_IMPLICIT_GETTER,
                     MessageKind.UNIMPLEMENTED_IMPLICIT_GETTER,
                     MessageKind.UNIMPLEMENTED_IMPLICIT_SETTER,
                     MessageKind.UNIMPLEMENTED_IMPLICIT_SETTER]);

  check("""
        class A {
          get member => 0; // testAbstractMethod:37
        }
        class Class implements A {
        }
        """, warnings: MessageKind.UNIMPLEMENTED_GETTER_ONE,
             infos: MessageKind.UNIMPLEMENTED_EXPLICIT_GETTER);

  check("""
        class A {
          set member(_) {} // testAbstractMethod:38
        }
        class Class implements A {
        }
        """, warnings: MessageKind.UNIMPLEMENTED_SETTER_ONE,
             infos: MessageKind.UNIMPLEMENTED_EXPLICIT_SETTER);

  check("""
        class A {
          var member; // testAbstractMethod:39
        }
        class Class implements A {
          get member => 0;
        }
        """, warnings: MessageKind.UNIMPLEMENTED_SETTER_ONE,
             infos: MessageKind.UNIMPLEMENTED_IMPLICIT_SETTER);

  check("""
        class A {
          var field; // testAbstractMethod:40
        }
        class Class implements A {
          final field = 0; // testAbstractMethod:41
        }
        """, warnings: MessageKind.UNIMPLEMENTED_SETTER_ONE,
             infos: MessageKind.UNIMPLEMENTED_IMPLICIT_SETTER);

  check("""
        class A {
          var member; // testAbstractMethod:42
        }
        class Class implements A {
          set member(_) {}
        }
        """, warnings: MessageKind.UNIMPLEMENTED_GETTER_ONE,
             infos: MessageKind.UNIMPLEMENTED_IMPLICIT_GETTER);

  check("""
        abstract class A {
          method() {} // testAbstractMethod:43
        }
        class Class extends A {
          method();
        }
        """);
}

testNoSuchMethod() {
  check("""
        class Class {
          method(); // testNoSuchMethod:1
        }
        """, warnings: MessageKind.ABSTRACT_METHOD,
             infos: []);

  check("""
        @proxy
        class Class {
          method(); // testNoSuchMethod:2
        }
        """, warnings: MessageKind.ABSTRACT_METHOD,
             infos: []);

  check("""
        class Class {
          noSuchMethod(_) => null;
          method(); // testNoSuchMethod:3
        }
        """);

  check("""
        class Class {
          noSuchMethod(_, [__]) => null;
          method(); // testNoSuchMethod:4
        }
        """);

  check("""
        class Class {
          noSuchMethod(_);
          method(); // testNoSuchMethod:5
        }
        """);

  check("""
        abstract class A {
          method(); // testNoSuchMethod:6
        }
        class Class extends A {
        }
        """, warnings: MessageKind.UNIMPLEMENTED_METHOD_ONE,
             infos: MessageKind.UNIMPLEMENTED_METHOD_CONT);

  check("""
        abstract class A {
          method(); // testNoSuchMethod:7
        }
        @proxy
        class Class extends A {
        }
        """, warnings: MessageKind.UNIMPLEMENTED_METHOD_ONE,
             infos: MessageKind.UNIMPLEMENTED_METHOD_CONT);

  check("""
        abstract class A {
          method(); // testNoSuchMethod:8
        }
        class Class extends A {
          noSuchMethod(_) => null;
        }
        """);

  check("""
        class A {
          method() {} // testNoSuchMethod:9
        }
        class Class implements A {
        }
        """, warnings: MessageKind.UNIMPLEMENTED_METHOD_ONE,
             infos: MessageKind.UNIMPLEMENTED_METHOD_CONT);

  check("""
        class A {
          method() {} // testNoSuchMethod:10
        }
        class Class implements A {
        }
        """, warnings: MessageKind.UNIMPLEMENTED_METHOD_ONE,
             infos: MessageKind.UNIMPLEMENTED_METHOD_CONT);

  check("""
        class A {
          method() {} // testNoSuchMethod:11
        }
        @proxy
        class Class implements A {
        }
        """, warnings: MessageKind.UNIMPLEMENTED_METHOD_ONE,
             infos: MessageKind.UNIMPLEMENTED_METHOD_CONT);

  check("""
        class A {
          method() {} // testNoSuchMethod:12
        }
        class Class implements A {
          noSuchMethod(_) => null;
        }
        """);

  check("""
        class A {
          noSuchMethod(_) => null;
          method(); // testNoSuchMethod:13
        }
        class Class extends A {
        }
        """, warnings: MessageKind.UNIMPLEMENTED_METHOD_ONE,
             infos: MessageKind.UNIMPLEMENTED_METHOD_CONT);
}