| // Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| import 'package:analyzer/src/error/codes.dart'; |
| import 'package:test_reflective_loader/test_reflective_loader.dart'; |
| |
| import '../dart/resolution/context_collection_resolution.dart'; |
| |
| main() { |
| defineReflectiveSuite(() { |
| defineReflectiveTests(UnusedFieldTest); |
| }); |
| } |
| |
| @reflectiveTest |
| class UnusedFieldTest extends PubPackageResolutionTest { |
| test_isUsed_argument() async { |
| await assertNoErrorsInCode(r''' |
| class A { |
| int _f = 0; |
| main() { |
| print(++_f); |
| } |
| } |
| print(x) {} |
| '''); |
| } |
| |
| test_isUsed_extensionOnClass() async { |
| await assertNoErrorsInCode(r''' |
| class Foo {} |
| extension Bar on Foo { |
| int baz() => _baz; |
| static final _baz = 7; |
| } |
| '''); |
| } |
| |
| test_isUsed_extensionOnEnum() async { |
| await assertNoErrorsInCode(r''' |
| enum Foo {a, b} |
| extension Bar on Foo { |
| int baz() => _baz; |
| static final _baz = 1; |
| } |
| '''); |
| } |
| |
| test_isUsed_mixin() async { |
| await assertNoErrorsInCode(r''' |
| mixin M { |
| int _f = 0; |
| } |
| class Bar with M { |
| int g() => _f; |
| } |
| '''); |
| } |
| |
| test_isUsed_mixinRestriction() async { |
| await assertNoErrorsInCode(r''' |
| class Foo { |
| int _f = 0; |
| } |
| mixin M on Foo { |
| int g() => _f; |
| } |
| '''); |
| } |
| |
| test_isUsed_parameterized_subclass() async { |
| await assertNoErrorsInCode(r''' |
| class A<T extends num> { |
| T _f; |
| A._(this._f); |
| } |
| class B extends A<int> { |
| B._(int f) : super._(f); |
| } |
| void main() { |
| B b = B._(7); |
| print(b._f == 7); |
| } |
| '''); |
| } |
| |
| test_isUsed_privateEnum_publicValue() async { |
| await assertNoErrorsInCode(r''' |
| enum _Foo {a, b} |
| f() => print('${_Foo.a}${_Foo.b}'); |
| '''); |
| } |
| |
| test_isUsed_privateEnum_values() async { |
| await assertNoErrorsInCode(r''' |
| enum _Foo {a} |
| f() => _Foo.values; |
| '''); |
| } |
| |
| test_isUsed_publicEnum_privateValue() async { |
| await assertNoErrorsInCode(r''' |
| enum Foo {_a, _b} |
| f() => print('${Foo._a}${Foo._b}'); |
| '''); |
| } |
| |
| test_isUsed_publicStaticField_privateClass() async { |
| await assertNoErrorsInCode(r''' |
| class _A { |
| static String f1 = "x"; |
| } |
| void main() => print(_A.f1); |
| '''); |
| } |
| |
| test_isUsed_publicStaticField_privateExtension() async { |
| await assertNoErrorsInCode(r''' |
| extension _A on String { |
| static String f1 = "x"; |
| } |
| void main() => print(_A.f1); |
| '''); |
| } |
| |
| test_isUsed_publicStaticField_privateMixin() async { |
| await assertNoErrorsInCode(r''' |
| mixin _A { |
| static String f1 = "x"; |
| } |
| void main() => print(_A.f1); |
| '''); |
| } |
| |
| test_isUsed_reference_implicitThis() async { |
| await assertNoErrorsInCode(r''' |
| class A { |
| int _f = 0; |
| main() { |
| print(_f); |
| } |
| } |
| print(x) {} |
| '''); |
| } |
| |
| test_isUsed_reference_implicitThis_expressionFunctionBody() async { |
| await assertNoErrorsInCode(r''' |
| class A { |
| int _f = 0; |
| m() => _f; |
| } |
| '''); |
| } |
| |
| test_isUsed_reference_implicitThis_subclass() async { |
| await assertNoErrorsInCode(r''' |
| class A { |
| int _f = 0; |
| main() { |
| print(_f); |
| } |
| } |
| class B extends A { |
| int _f = 0; |
| } |
| print(x) {} |
| '''); |
| } |
| |
| test_isUsed_reference_qualified_propagatedElement() async { |
| await assertNoErrorsInCode(r''' |
| class A { |
| int _f = 0; |
| } |
| main() { |
| var a = new A(); |
| print(a._f); |
| } |
| print(x) {} |
| '''); |
| } |
| |
| test_isUsed_reference_qualified_staticElement() async { |
| await assertNoErrorsInCode(r''' |
| class A { |
| int _f = 0; |
| } |
| main() { |
| A a = new A(); |
| print(a._f); |
| } |
| print(x) {} |
| '''); |
| } |
| |
| test_isUsed_reference_qualified_unresolved() async { |
| await assertNoErrorsInCode(r''' |
| class A { |
| int _f = 0; |
| } |
| main(a) { |
| print(a._f); |
| } |
| print(x) {} |
| '''); |
| } |
| |
| test_notUsed_compoundAssign() async { |
| await assertErrorsInCode(r''' |
| class A { |
| int _f = 0; |
| main() { |
| _f += 2; |
| } |
| } |
| ''', [ |
| error(HintCode.UNUSED_FIELD, 16, 2), |
| ]); |
| } |
| |
| test_notUsed_constructorFieldInitializers() async { |
| await assertErrorsInCode(r''' |
| class A { |
| int _f; |
| A() : _f = 0; |
| } |
| ''', [ |
| error(HintCode.UNUSED_FIELD, 16, 2), |
| ]); |
| } |
| |
| test_notUsed_extensionOnClass() async { |
| await assertErrorsInCode(r''' |
| class Foo {} |
| extension Bar on Foo { |
| static final _baz = 7; |
| } |
| ''', [ |
| error(HintCode.UNUSED_FIELD, 51, 4), |
| ]); |
| } |
| |
| test_notUsed_fieldFormalParameter() async { |
| await assertErrorsInCode(r''' |
| class A { |
| int _f; |
| A(this._f); |
| } |
| ''', [ |
| error(HintCode.UNUSED_FIELD, 16, 2), |
| ]); |
| } |
| |
| test_notUsed_mixin() async { |
| await assertErrorsInCode(r''' |
| mixin M { |
| int _f = 0; |
| } |
| class Bar with M {} |
| ''', [ |
| error(HintCode.UNUSED_FIELD, 16, 2), |
| ]); |
| } |
| |
| test_notUsed_mixinRestriction() async { |
| await assertErrorsInCode(r''' |
| class Foo { |
| int _f = 0; |
| } |
| mixin M on Foo {} |
| ''', [ |
| error(HintCode.UNUSED_FIELD, 18, 2), |
| ]); |
| } |
| |
| test_notUsed_noReference() async { |
| await assertErrorsInCode(r''' |
| class A { |
| int _f = 0; |
| } |
| ''', [ |
| error(HintCode.UNUSED_FIELD, 16, 2), |
| ]); |
| } |
| |
| test_notUsed_nullAssign() async { |
| await assertNoErrorsInCode(r''' |
| class A { |
| var _f; |
| m() { |
| _f ??= doSomething(); |
| } |
| } |
| doSomething() => 0; |
| '''); |
| } |
| |
| test_notUsed_postfixExpr() async { |
| await assertErrorsInCode(r''' |
| class A { |
| int _f = 0; |
| main() { |
| _f++; |
| } |
| } |
| ''', [ |
| error(HintCode.UNUSED_FIELD, 16, 2), |
| ]); |
| } |
| |
| test_notUsed_prefixExpr() async { |
| await assertErrorsInCode(r''' |
| class A { |
| int _f = 0; |
| main() { |
| ++_f; |
| } |
| } |
| ''', [ |
| error(HintCode.UNUSED_FIELD, 16, 2), |
| ]); |
| } |
| |
| test_notUsed_privateEnum_publicValue() async { |
| await assertErrorsInCode(r''' |
| enum _Foo {a} |
| f() => _Foo; |
| ''', [ |
| error(HintCode.UNUSED_FIELD, 11, 1), |
| ]); |
| } |
| |
| test_notUsed_publicEnum_privateValue() async { |
| await assertErrorsInCode(r''' |
| enum Foo {_a} |
| ''', [ |
| error(HintCode.UNUSED_FIELD, 10, 2), |
| ]); |
| } |
| |
| test_notUsed_publicStaticField_privateClass() async { |
| await assertErrorsInCode(r''' |
| class _A { |
| static String f1 = "x"; |
| } |
| void main() => print(_A); |
| ''', [ |
| error(HintCode.UNUSED_FIELD, 27, 2), |
| ]); |
| } |
| |
| test_notUsed_publicStaticField_privateExtension() async { |
| await assertErrorsInCode(r''' |
| extension _A on String { |
| static String f1 = "x"; |
| } |
| ''', [ |
| error(HintCode.UNUSED_FIELD, 41, 2), |
| ]); |
| } |
| |
| test_notUsed_publicStaticField_privateMixin() async { |
| await assertErrorsInCode(r''' |
| mixin _A { |
| static String f1 = "x"; |
| } |
| void main() => print(_A); |
| ''', [ |
| error(HintCode.UNUSED_FIELD, 27, 2), |
| ]); |
| } |
| |
| test_notUsed_referenceInComment() async { |
| await assertErrorsInCode(r''' |
| /// [A._f] is great. |
| class A { |
| int _f = 0; |
| } |
| ''', [ |
| error(HintCode.UNUSED_FIELD, 37, 2), |
| ]); |
| } |
| |
| test_notUsed_simpleAssignment() async { |
| await assertErrorsInCode(r''' |
| class A { |
| int _f = 0; |
| m() { |
| _f = 1; |
| } |
| } |
| f(A a) { |
| a._f = 2; |
| } |
| ''', [ |
| error(HintCode.UNUSED_FIELD, 16, 2), |
| ]); |
| } |
| } |