| // 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/dart/error/hint_codes.dart'; |
| 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(AssignmentToFinalLocalTest); |
| defineReflectiveTests(AssignmentToFinalLocalWithNullSafetyTest); |
| }); |
| } |
| |
| @reflectiveTest |
| class AssignmentToFinalLocalTest extends PubPackageResolutionTest { |
| test_localVariable() async { |
| await assertErrorsInCode(''' |
| f() { |
| final x = 0; |
| x = 1; |
| }''', [ |
| error(HintCode.UNUSED_LOCAL_VARIABLE, 14, 1), |
| error(CompileTimeErrorCode.ASSIGNMENT_TO_FINAL_LOCAL, 23, 1), |
| ]); |
| } |
| |
| test_localVariable_inForEach() async { |
| await assertErrorsInCode(''' |
| f() { |
| final x = 0; |
| for (x in <int>[1, 2]) { |
| print(x); |
| } |
| }''', [ |
| error(CompileTimeErrorCode.ASSIGNMENT_TO_FINAL_LOCAL, 28, 1), |
| ]); |
| } |
| |
| test_localVariable_plusEq() async { |
| await assertErrorsInCode(''' |
| f() { |
| final x = 0; |
| x += 1; |
| }''', [ |
| error(HintCode.UNUSED_LOCAL_VARIABLE, 14, 1), |
| error(CompileTimeErrorCode.ASSIGNMENT_TO_FINAL_LOCAL, 23, 1), |
| ]); |
| } |
| |
| test_parameter() async { |
| await assertErrorsInCode(''' |
| f(final x) { |
| x = 1; |
| }''', [ |
| error(CompileTimeErrorCode.ASSIGNMENT_TO_FINAL_LOCAL, 15, 1), |
| ]); |
| } |
| |
| test_postfixMinusMinus() async { |
| await assertErrorsInCode(''' |
| f() { |
| final x = 0; |
| x--; |
| }''', [ |
| error(HintCode.UNUSED_LOCAL_VARIABLE, 14, 1), |
| error(CompileTimeErrorCode.ASSIGNMENT_TO_FINAL_LOCAL, 23, 1), |
| ]); |
| } |
| |
| test_postfixPlusPlus() async { |
| await assertErrorsInCode(''' |
| f() { |
| final x = 0; |
| x++; |
| }''', [ |
| error(HintCode.UNUSED_LOCAL_VARIABLE, 14, 1), |
| error(CompileTimeErrorCode.ASSIGNMENT_TO_FINAL_LOCAL, 23, 1), |
| ]); |
| } |
| |
| test_prefixMinusMinus() async { |
| await assertErrorsInCode(''' |
| f() { |
| final x = 0; |
| --x; |
| }''', [ |
| error(HintCode.UNUSED_LOCAL_VARIABLE, 14, 1), |
| error(CompileTimeErrorCode.ASSIGNMENT_TO_FINAL_LOCAL, 25, 1), |
| ]); |
| } |
| |
| test_prefixPlusPlus() async { |
| await assertErrorsInCode(''' |
| f() { |
| final x = 0; |
| ++x; |
| }''', [ |
| error(HintCode.UNUSED_LOCAL_VARIABLE, 14, 1), |
| error(CompileTimeErrorCode.ASSIGNMENT_TO_FINAL_LOCAL, 25, 1), |
| ]); |
| } |
| |
| test_suffixMinusMinus() async { |
| await assertErrorsInCode(''' |
| f() { |
| final x = 0; |
| x--; |
| }''', [ |
| error(HintCode.UNUSED_LOCAL_VARIABLE, 14, 1), |
| error(CompileTimeErrorCode.ASSIGNMENT_TO_FINAL_LOCAL, 23, 1), |
| ]); |
| } |
| |
| test_suffixPlusPlus() async { |
| await assertErrorsInCode(''' |
| f() { |
| final x = 0; |
| x++; |
| }''', [ |
| error(HintCode.UNUSED_LOCAL_VARIABLE, 14, 1), |
| error(CompileTimeErrorCode.ASSIGNMENT_TO_FINAL_LOCAL, 23, 1), |
| ]); |
| } |
| } |
| |
| @reflectiveTest |
| class AssignmentToFinalLocalWithNullSafetyTest extends PubPackageResolutionTest |
| with WithNullSafetyMixin { |
| test_localVariable_late() async { |
| await assertNoErrorsInCode(''' |
| void f() { |
| late final int a; |
| a = 1; |
| a; |
| } |
| '''); |
| } |
| } |