| // 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 'dart:io' show Directory, Platform; |
| |
| import 'package:_fe_analyzer_shared/src/testing/id.dart' show ActualData, Id; |
| import 'package:_fe_analyzer_shared/src/testing/id_testing.dart'; |
| import 'package:front_end/src/fasta/source/source_loader.dart'; |
| import 'package:front_end/src/fasta/source/source_member_builder.dart'; |
| import 'package:front_end/src/fasta/type_inference/type_inference_engine.dart'; |
| import 'package:front_end/src/testing/id_testing_helper.dart'; |
| import 'package:front_end/src/testing/id_testing_utils.dart'; |
| import 'package:kernel/ast.dart' hide Variance; |
| |
| Future<void> main(List<String> args) async { |
| Directory dataDir = new Directory.fromUri(Platform.script.resolve( |
| '../../../_fe_analyzer_shared/test/flow_analysis/definite_assignment/' |
| 'data')); |
| await runTests<String>(dataDir, |
| args: args, |
| createUriForFileName: createUriForFileName, |
| onFailure: onFailure, |
| runTest: runTestFor( |
| const DefiniteAssignmentDataComputer(), [cfeNonNullableOnlyConfig])); |
| } |
| |
| class DefiniteAssignmentDataComputer extends DataComputer<String> { |
| const DefiniteAssignmentDataComputer(); |
| |
| @override |
| DataInterpreter<String> get dataValidator => const StringDataInterpreter(); |
| |
| /// Function that computes a data mapping for [member]. |
| /// |
| /// Fills [actualMap] with the data. |
| @override |
| void computeMemberData( |
| TestConfig config, |
| InternalCompilerResult compilerResult, |
| Member member, |
| Map<Id, ActualData<String>> actualMap, |
| {bool? verbose}) { |
| SourceMemberBuilder memberBuilder = |
| lookupMemberBuilder(compilerResult, member) as SourceMemberBuilder; |
| member.accept(new DefiniteAssignmentDataExtractor(compilerResult, actualMap, |
| memberBuilder.dataForTesting!.inferenceData.flowAnalysisResult)); |
| } |
| |
| /// Errors are supported for testing erroneous code. The reported errors are |
| /// not tested. |
| @override |
| bool get supportsErrors => true; |
| } |
| |
| class DefiniteAssignmentDataExtractor extends CfeDataExtractor<String> { |
| final SourceLoaderDataForTesting _sourceLoaderDataForTesting; |
| final FlowAnalysisResult _flowResult; |
| |
| DefiniteAssignmentDataExtractor(InternalCompilerResult compilerResult, |
| Map<Id, ActualData<String>> actualMap, this._flowResult) |
| : _sourceLoaderDataForTesting = |
| compilerResult.kernelTargetForTesting!.loader.dataForTesting!, |
| super(compilerResult, actualMap); |
| |
| @override |
| String? computeNodeValue(Id id, TreeNode node) { |
| if (node is VariableGet) { |
| TreeNode alias = _sourceLoaderDataForTesting.toOriginal(node); |
| if (_flowResult.potentiallyUnassignedNodes.contains(alias)) { |
| return 'unassigned'; |
| } |
| } |
| return null; |
| } |
| } |