| // Copyright (c) 2020, 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' |
| show DataInterpreter, runTests; |
| import 'package:front_end/src/fasta/builder/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, MapLiteralEntry; |
| |
| Future<void> main(List<String> args) async { |
| Directory dataDir = new Directory.fromUri( |
| Platform.script.resolve('../../../_fe_analyzer_shared/test/flow_analysis/' |
| 'why_not_promoted/data')); |
| await runTests<String>(dataDir, |
| args: args, |
| createUriForFileName: createUriForFileName, |
| onFailure: onFailure, |
| runTest: runTestFor( |
| const WhyNotPromotedDataComputer(), [cfeNonNullableOnlyConfig])); |
| } |
| |
| class WhyNotPromotedDataComputer extends DataComputer<String> { |
| const WhyNotPromotedDataComputer(); |
| |
| @override |
| DataInterpreter<String> get dataValidator => |
| const _WhyNotPromotedDataInterpreter(); |
| |
| /// Errors are supported for testing erroneous code. The reported errors are |
| /// not tested. |
| @override |
| bool get supportsErrors => true; |
| |
| /// 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 WhyNotPromotedDataExtractor(compilerResult, actualMap, |
| memberBuilder.dataForTesting!.inferenceData.flowAnalysisResult)); |
| } |
| } |
| |
| class WhyNotPromotedDataExtractor extends CfeDataExtractor<String> { |
| final FlowAnalysisResult _flowResult; |
| |
| WhyNotPromotedDataExtractor(InternalCompilerResult compilerResult, |
| Map<Id, ActualData<String>> actualMap, this._flowResult) |
| : super(compilerResult, actualMap); |
| |
| @override |
| String? computeNodeValue(Id id, TreeNode node) { |
| String? nonPromotionReason = _flowResult.nonPromotionReasons[node]; |
| if (nonPromotionReason != null) { |
| return 'notPromoted($nonPromotionReason)'; |
| } |
| return _flowResult.nonPromotionReasonTargets[node]; |
| } |
| } |
| |
| class _WhyNotPromotedDataInterpreter implements DataInterpreter<String> { |
| const _WhyNotPromotedDataInterpreter(); |
| |
| @override |
| String getText(String actualData, [String? indentation]) => actualData; |
| |
| @override |
| String? isAsExpected(String actualData, String? expectedData) { |
| if (actualData == expectedData) { |
| return null; |
| } else { |
| return 'Expected $expectedData, got $actualData'; |
| } |
| } |
| |
| @override |
| bool isEmpty(String? actualData) => actualData == null; |
| } |