test_data/rules/iterable_contains_unrelated_type.dart

// Copyright (c) 2016, 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 w/ `dart test -N iterable_contains_unrelated_type`

void someFunction() {
  var list = <int>[];
  if (list.contains('1')) print('someFunction'); // LINT
}

void someFunction1() {
  var list = <int>[];
  if (list.contains(1)) print('someFunction1'); // OK
}

void someFunction3() {
  List<int> list = <int>[];
  if (list.contains('1')) print('someFunction3'); // LINT
}

void someFunction4() {
  List<int> list = <int>[];
  if (list.contains(1)) print('someFunction4'); // OK
}

void someFunction4_1() {
  List list;
  if (list.contains(null)) print('someFucntion4_1');
}

void someFunction5_1() {
  List<ClassBase> list = <ClassBase>[];
  Object instance;
  if (list.contains(instance)) print('someFunction5_1'); // OK
}

void someFunction5() {
  List<ClassBase> list = <ClassBase>[];
  DerivedClass1 instance;
  if (list.contains(instance)) print('someFunction5'); // OK
}

void someFunction6() {
  List<Mixin> list = <Mixin>[];
  DerivedClass2 instance;
  if (list.contains(instance)) print('someFunction6'); // OK
}

void someFunction6_1() {
  List<DerivedClass2> list = <DerivedClass2>[];
  Mixin instance;
  if (list.contains(instance)) print('someFunction6_1'); // OK
}

void someFunction7() {
  List<Mixin> list = <Mixin>[];
  DerivedClass3 instance;
  if (list.contains(instance)) print('someFunction7'); // OK
}

void someFunction7_1() {
  List<DerivedClass3> list = <DerivedClass3>[];
  Mixin instance;
  if (list.contains(instance)) print('someFunction7_1'); // OK
}

void someFunction8() {
  List<DerivedClass2> list = <DerivedClass2>[];
  DerivedClass3 instance;
  if (list.contains(instance)) print('someFunction8'); // OK
}

void someFunction9() {
  List<Implementation> list = <Implementation>[];
  Abstract instance = new Abstract();
  if (list.contains(instance)) print('someFunction9'); // OK
}

void someFunction10() {
  var list = [];
  if (list.contains(1)) print('someFunction10'); // OK
}

void someFunction11(unknown) {
  var what = unknown - 1;
  List<int> list = <int>[];
  list.forEach((int i) {
    if (what == i) print('someFunction11'); // OK
  });
}

void someFunction12() {
  List<DerivedClass4> list = <DerivedClass4>[];
  DerivedClass5 instance;
  if (list.contains(instance)) print('someFunction12'); // LINT
}

void bug_267(list) {
  if (list.contains('1')) // https://github.com/dart-lang/linter/issues/267
    print('someFunction');
}

abstract class ClassBase {}

class DerivedClass1 extends ClassBase {}

abstract class Mixin {}

class DerivedClass2 extends ClassBase with Mixin {}

class DerivedClass3 extends ClassBase implements Mixin {}

abstract class Abstract {
  factory Abstract() {
    return new Implementation();
  }

  Abstract._internal();
}

class Implementation extends Abstract {
  Implementation() : super._internal();
}

class DerivedClass4 extends DerivedClass2 {}

class DerivedClass5 extends DerivedClass3 {}

bool takesIterable(Iterable<int> iterable) => iterable.contains('a'); // LINT

bool takesIterable2(Iterable<String> iterable) => iterable.contains('a'); // OK

bool takesIterable3(Iterable iterable) => iterable.contains('a'); // OK

abstract class A implements Iterable<int> {}

abstract class B extends A {}

bool takesB(B b) => b.contains('a'); // LINT

abstract class A1 implements Iterable<String> {}

abstract class B1 extends A1 {}

bool takesB1(B1 b) => b.contains('a'); // OK

abstract class A3 implements Iterable {}

abstract class B3 extends A3 {}

bool takesB3(B3 b) => b.contains('a'); // OK

abstract class AddlInterface {}

abstract class SomeIterable<E> implements Iterable<E>, AddlInterface {}

abstract class MyClass implements SomeIterable<int> {
  bool badMethod(String thing) => this.contains(thing); // LINT
  bool badMethod1(String thing) => contains(thing); // LINT
}

abstract class MyDerivedClass extends MyClass {
  bool myConcreteBadMethod(String thing) => this.contains(thing); // LINT
  bool myConcreteBadMethod1(String thing) => contains(thing); // LINT
}

abstract class MyMixedClass extends Object with MyClass {
  bool myConcreteBadMethod(String thing) => this.contains(thing); // LINT
  bool myConcreteBadMethod1(String thing) => contains(thing); // LINT
}

abstract class MyIterableMixedClass extends Object
    with MyClass
    implements Iterable<int> {
  bool myConcreteBadMethod(String thing) => this.contains(thing); // LINT
  bool myConcreteBadMethod1(String thing) => contains(thing); // LINT
}